Decentralized Wastewater and Septage Management in Asia - Dr. Ngoc-Bao Pham
nF6u-RBJjCk • 2020-07-07
Transcript preview
Open
Kind: captions Language: en we'll call you Bob they call it a profound so it's okay okay well so you will control the vicinity by yourself yes okay can I start to share my screen now yeah yes so just just to try it it o my screen sharing I did the problem has been assigned as the co-host or they can he can he can play oh okay because our committee problem is already I think she can you see the screen now yes yes yeah just just try there okay you try great great great great so bow we have to wait for 9 a.m. yes because we will will be live on YouTube and then it it is knowledge on a 9 a.m. okay so we will wait for some time as until 9:00 okay so you let me say my camera I'm not sure whether you can see my camera good good can you see that yes yes say yeah in office yes I'm in my office right now today so just just for information Jodi ended in the zoom room in the indeed in this room in the zoom is 40 about 50 we are in the room yes but he because we broadcast live on the YouTube it might be will be more because yesterday about 300 or something already my my I know that the main audience the many audience is a student and government officer is a is a local government officer or the central government officer ah so be in the inner in a room in the energy from is a is combined I did their selections and also the local government stop maybe I did yeah you can who will voice in the choir in the in the in the gym room Robbie okay mine off or participant were a government officer and some of them was the consultant the increments consultant and a few of them was the lecturer and popular YouTube I don't exactly know I think more most of I think so because my studio in and to see in there to in the in the job on the YouTube so because that's funny I have a class hmm will be classed up because now is still summer holiday okay next semester a bill I will have a class on the in the environmental bottom and from the bad energy so it's a compulsory for them to join but if it's all in the in the zone meeting room it will too crowded so actually because sometime if is too many in the und in the gym so you said it difficult to control yeah so it's it's better there so the video will be share and you will keep on YouTube yeah can you share with me the youtube link as well ah yes yes can you see can you send me I mean I was did probably send a link to me and they will say wait for a minute sir I asked our committee for no hurry no hurry so during the presentation maybe I will not camera too so that the audience might pay more attention to the presentation is alright and but it's no problem because usually they the the the speaker is just only only smaller a small camera on the top of the okay that will be no no problem if you it's better to show also your face as well but because this it's only on the right side just worried effect you the screen as well yeah no no okay that's good yeah but like let's see if okay I can let me try let me try first how I look yeah like this yeah and then maybe but in the YouTube they're really just only only yourself so someone will talking will be on the screen how about this I mean are you audio tube is a squid like this when we appear on YouTube right yeah but but but the speaker will be only appear on the top on the right top side of the okay okay yeah I got it yeah only only someone who are the speaker yeah okay otherwise show everyone no no no see okay I already send the link to you the link of the okay thank you thank you I already saw this yeah okay sir please ready on the YouTube I think she's ready on the YouTube yes yes say in the YouTube you face just only on the top right of the corner yeah yes yes I'm not checking yeah yes you sorry Cassandra yeah kid ninh talk money she says he'll meet lug in unit exams villain but Andrew can be some American circulars in promise you and I yeah basically and that said he put the roster yeah yeah okay Wow yes okay okay we will start bow could you turn off the patient isn't because I will I will show you the the city of you okay okay yeah yeah let me turn up so let me stop sharing those yeah okay yeah okay I think so we will start you know you so did okay okay so good morning everybody so we will start our our session that's this one is the the appreciation report today and then we are delighted to invite dr. palm and I will show you the the the briefs CV of dr. palm so dr. Pam I call him bow so he he's graduated from the department of urban engineering University of Tokyo he has more than 10 years of working experience in the equal conducting interdisciplinary research and projects actually in the water supply and sanitation in developing countries so I I know Wow for many years seen him he was a student in University so that I'm delighted to welcome dr. mom I call him bow because now he is engaged with I guess as a senior policy policy researchers I just is I just extend for the intern is so I probably Bauer will explain about the I just was so it said I just look at it in in the Tokyo Japan and he ended with many projects actually in Asia and then visited in initial many times and then I think almost every few months if you sit Indonesia although for me in this time of the year is difficult but hopefully if after the Panama key periods off ur for the we will teach it again in Alicia so I think this one is the introduction of dr. mom so I will leave bow you can share your presentation and then the time is yours but I will stop sharing yeah thank you very much professor Chandra for your very kind introduction so please let me allow allow me to share my screen can you see that right now it's great gage okay good morning everyone it's my pleasure to to be invited to give you a top to gaze on the distance lies with water and surface Messman in asia some challenge and opportunity as a professor Chandra has already karlie introduced my name is well I'm not working as a senior policy researcher at the steel for global environmental strategy in Japan so digital cap policy oriented Research Institute are supported by the military of environment of Japan's so as professor already kindly introduced I have more than actually more than 15 years of working experience in the field of water in center especially in ASEAN country and currently we are now operating a network called water environment partnership in Asia is a funded by the Government of Japan to support to improve the water government in many Asian country and at the same time I am now living a project also funded by Japanese government to ASEAN country the the fund directly to the ASEAN secretary in order to support to promote the implementation the distance relay was what a madman in ASEAN country so for the presentation today I'd like to give you the whole picture of how the recent highways water and surface measurement has been implemented in ASEAN country and particularly with a focus on the ASEAN countries including Indonesia so that is my very brief introductions about our ally my presentation today and okay I cannot sorry I cannot move the slide and what happened here okay so this is our life my talk today's first I like to give you a brief overview of the domestic wastewater incepted management in Asia and what type challenge that many country is now facing but at the same time what kind of good practice what lesson we can learn from from from the commandment country and also what is the opportunity and what is the visit model planning for the domestic wastewater incepted Messman through some case study in the ASEAN country including the inner Asia and after that we like to discuss what is the way forward to promote the recent slide wastewater madman in our region you know that in our ASEAN country many country is now facing the same challenge the challenge of the rapid population grows in some area the population grow very quickly very fast and urbanization industrialization and especially there's a big change in the consumption pattern in the reason we have observed over the last moment what I mean is that the big ship to inter but the diet toward more highly water intensive foods Chuck has a meat miss consumption many country is now conscious consume a lot of meat and then the meat consumption per capita also increased significantly over the last ten year as a result it's led to a very significant increase in the water demand you know to further meat productions and then as a result it put a lot of burden a hue button under water infrastructure in the region especially the wastewater infrastructure so based on our information up to now we found that is allow night 80 to 90 percent of the other generated with water in the regions is now Richard directly into the water body without any proper treatment all only partially treated by some kind of simple on-site sanitation system what we call it is a septic tank which is a very common unconsciously due to the very poor performance of the tanks and also due to the lac operon in maintaining a lot of contaminations and liqueurs has occurred and effect to the growl and survey water and also put a lot of economic impact to the country and often the citation is often is a neglect aspect development in many Asian countries is particularly in ASEAN country where the spending is very limited I mean the spending for sanitation is very limited it compared to the other sector and many country give more priority to the other agenda so according to the recent World Bank's study is said that because of the poor sanitation in many countries like Cambodia Indonesia Philippines and Vietnam so those country has lost around 9 billion US dollar per year because of the poor sanitation and as and and because because of this guy poor sanitation so it has a lot of impacts the impacts to the tourism impact to the environment impact to the water and impact of the health so this is a crap result is so a breakdown of the economic impact of for sanitation in some country depend on the sector so this brief data is limited from 2008 public in 2008 but I think nowadays the impact is even more significant yeah and in order to address this impact of wastewater poor wastewater management many country try to incur it to install some kind of on science annotation system like septic tank or flap and portal and so on so this map show you the percentage of population served by on-site sanitation technology around the world especially if you look at the in Asia many country do not have access to the sewer system but they have to rely heavily on the some Chi on-site sanitation system like septic tank or both poor of poor flat latrine and so on and this map give you a more clear pictures and in term of the breakdown up to how much percentage are there of the septic tanks has been installed in urban area in some country especially you can see some country in ASEAN for example in Indonesia of more than 63 percent of the urban household equipped with the septic tank and also lacks ratio of the population is not using a septic tank but just the toilet inside a house and then passing directly to the fessing their wastewater directly to the outside to drainage candor an internal set that set that is a capslock generated form the septic tank only four percent of the separate is separate treated and disposal in inertia and other country the situation is quite similar like in vietnam also only four percent of the surface has been safely disposal but the remaining ninety six percent be just dumping directly to the urban environment or illegal dumping and so on so that's situations create a lot of problem too many country in in the reason and you know that about about 10 about to fajn mm mm there the United Nations committees has Assembly has already approved the MDG what it called million Development Goal under the million development goal they tried to increase the ratio of access to the improve citations and improve the water supply so basically in the MDG they focused more on the installation of the facility ich weiß they taller and how to increase the ratio of the people except to drinking water and so on but in 2015 many country gathering together again to develop a more comprehensive agenda what we call is 2030 agenda for sustainable development and then under this agenda their 17 goal has been proposed to address the challenge of the world nowadays and among these 17 gone there's a goal is cons go number sick focus on the water and sanitation which loop is more comprehensive approach to address the challenge of water issue it's not only how to promote this the tallest the drinking water access but also how to attract the effluent from this cap on science citation system like how to deal with the wastewater how to how to improve the water resort Messman how to improve the ecosystem how to improve the water use efficiency and so on so this is more comprehensive look at the whole water cycle so that is more give a more challenge to the country to achieve this goal and also the target and in the DG's they identified that one system is considered as a safely managed sanitation system is must be addressed not only the wastewater but also the escrita or the susceptance generated formed on sanitation sanitation system so it means that according to the new definition both wastewater and excreta must be properly treated before we chat outside so as you can see here in order to meet the ABC number sick on water sensations we need to look at the whole component across the sanitation service change it's not only about the tallest I mean in a containment it's not only about the final treatment but we have to think how to properly empty how to properly transport how to properly treat it and how to properly make use of this gap and use products from the treatment process so yes this is the the the picture we often see in many development countries where they have a intensive network of the civil system where they have the the toilet inside how and the tallest is water wastewater the in directly into the Civic Network and then into pumping station and they depend to the sewage treatment plan and then the wastewater has been properly treated me for each other's outside environment but in many country in many country in our reasons we do not have fully accept to the network system so as a result we have to rely a lot on the unsigned sanitation system or decentralized system small system for the community like San Dimas that we often see many system has been installed in Indonesia yeah so for this system is how to ensure the proper operation and maintenance of the unsigned sanitation system or Viva system play a very important and key role in order to ensure the good water qualities in to open environment yes so as a result of these situations many country is now facing a lot of problem with the with with the degrading water quality in the water body so this picture show you the trend of water quality stated in Indonesia form the year 2014 to the year 2018 and you can see here it look like recently in 2018 the water quality's in inner Asia has slightly improved but again if you look at back to the history over the last four or five years that the majorities of the river in inertia has been classified as heavily polluted river the polluted is mostly coming from the domestic the livestock the industry and especially from the non point source pollution and it's called a lot problem in terms of the health of how rich including the coliform coliform beauty of a pollutant and so on yes and again this is a result show you the inventory analysis of the pollution sought in some major river basin in Indonesia for example in Citarum River and is you can see here this picture that the majority of pollution sought is the coming from mostly from domestic and after that another sort is agriculture also plays a very cyclical sauce in the in the in durmitor pollution load in Indonesia so how to address the wastewater the pollution sort of a pollution illness sought from this domestic salt is a major challenge that we need to consider in the future in terms of the septage it means a slot for a separate time then I can see that if you if you google you can see that there are so many join an article many research has been done in order to address the issue of septic management and separate treatment there's a lot of Technology has been discussed in this scab joinha paper including the low-cost technology the advanced technology and so on so the science seemed to be very clear but if you look at the real the real tea is not true so in the Realty we can see that mode of the scepters has been collected by some private company and you and we can observe in for example in Bandung city or in in Denpasar City that mode of the percept s has been collected by the private sector private company and then this cap scepters has been either rich and illegally somewhere this picture I show you on the left hand is the surface has been collected by a company in Vietnam and then they did chat directly into the fist on this picture we took from I think from from from from mondo and some company also did shots into the into the sea with tender serious system so if you can imagine that's a truck of five cubic meter a frico slot or septage dumping illegal dumping so it can echo equivalent to five thousand people practice open defecation so you can see how in how much impact if just one track dumping to outside environment it can affect to our life our human health and so on and if you just take one gram of the feces from our humans and one gram of feces it can contains around more than hundred Parris I ate more than thousand protozoa more than 1 million bacteria and more than 10 million virus in just one gram of feces so that is a problem and so as a result you know to address the surplus Messman it's a require a comprehensive and integrate the system approach that need to consider the whole sanitation service change and we need to look at the whole aspect it's not about a technical aspect but also the legal what cab legal aspect what kind institutional aspect work a financial aspect and so on and then the most important is we need a car operate visit model it for the septons Messman in the reason because not like in water supply in water supply you can get the revenue from the customer from the user but for the wastewater basically it's very difficult to collect a fee from the household and from the polluter and in some country the wastewater fee has been incorporated into the water bill but again very small for example in Vietnam in in Lao and Philippine and so on the wastewater fee is about ten percent or 50 percent of the water supply but again it's very difficult for father for the wastewater company to collect this free usury to depend on the city depend on the country by country so this is a you know to give you a brief understanding what kind of common challenge that we often face across the visit across the Sanitation Civic change and then we conduct some kind of study in bundles and in them masa City and we found this common issue we often observe across the sanitation service chain for example in terms of the on-site sanitation live septic tank and so on there is a lack of regulation and enforcement in term of the design standard further on-site sanitation system I mean for the septic tank motive excessive time has been contracted by on the experience of the contractor so normally they do not follow the the Senate guy lie or even the country do not have a guy lie or the contractor they are not aware that whether the country have the guy like or not that'd be one issue the second issue is like a regular maintenance normally when the household in stone the septic time they don't know when the septic tank has been installed and as a result they only cone for the servic company to empty stock when they have problem with a septic tank whether when the sec tank has been block block then they have to come to the company otherwise they are not cold so in many case that's many household they didn't cone for the regular slot empty more for more than ten years so that is very popular the second is in term of the transportation collection and so on there is a like a standard operating procedure for empty is a slot and transportation in many households earn that because the the septic tank has been not opened for more than ten year or six year then a lot of a lot of scum has been accumulated on the survey updates of the second tank so as a result it's very difficult to break down this gap scum so it has been only so it died so when the when the servic company when they come to collect the slot what they empty is not slab actually what they empty is only the wastewater part but the slat part is still accumulated on the bottom or in the surrounding surrounding work of the other set of time so normally for this guy the the the service provider I mean that the truck the truck the trucker need to use some kind of stick to break down this gap the first before using the pie to suction to empty the slot but normally in in um in in many case they don't use this they just use the pie inject directly to the second time and then empty is a slot but actually that the pot coming out is just wet of with water part so there's like a standard operating procedure has been observed and motor decay is by on the unconscious by it's not my under regular miss watching serve it in although I know that in many city they start to consider to introduce the schedule dis watchings program but this is a very few case yeah so also in terms of the separate treatment just like a treatment plant a we can see that for example in Bandung city we don't have any sludge treatment plants in Bandung city in Denpasar City they have a one slot treatment plan but very limited capacity so it's only treated very small amount of slot but the majority of slot has been bringing to somewhere we don't know yeah so in order to understand in us to have the policymaker and a scientist and planner to understand the whole picture how the wastewater house lot has been many's in some country and one of the approach we has been introduced in manic city in many countries recently is to visualize to develop a car seat flow diagram so that we can understand how much the how much the wastewater has been generated in some city and where it's going how many percent has been going to the treatment path plan how many percent has been properly treated and how many many percent is have been illegally dumping and so on so Bay on this skype diagram is Hector happy to visualize the the real situation and thereby on this Skype situation the policymaker the sanitation Panda we know which area which part we need to focus in to improve the situation so as a result many sis flow diagram has been developed into for the many asean city for example this example of the SIP flow diagram has developed for the non-temporary city of thailand and this one is for Danone city of vietnam and this one is for Bandung city under one of our projects in collaboration with ITB in 2018 2017 so we also develop this kind of diagram so that we can have to the policymaker and sanitation planner to understand what cap situation and then after that we discuss about how to address this gap challenge both technically and financially is the generally and so on yeah and I said that in order to address the sanitation issue in many country especially in ASEAN country this many approach has been introduced so far including the view of the septic tanks on science and other on sanitation system including the build up the installation of regular restructuring so bid or invasion we can schedule dispatching survey and then it's some more liberal country they start to install the sensor light which what treatment plan but in many case the centralized wastewater treatment plan it's very limited in has been very limited has been observed in many country because of the huge costs requirement to install the recent right to install the sensor like wastewater treatment plan so area zoo as a result one of the final solution to address this challenge it to develop a decentralized system which required must lower cost but at the same time the construction is very sought not so long like centerline and also have to attract the local issue the challenge on the ground but when I discuss with many country there's many people many countries seem confusing what system is considered as an essence lies waste water treatment system for example in in Indonesia you already installed many recent centralized system lies cinema system the cinema system is considered it can treat the wastewater like maybe from 50 household to 200 or 300 household so it can be considered as a distance life but my question is whether is it can be 1,000 household or is more can it be considered as a decimal system so there's a lack of definition what kind of system is considered as a decent system in Vietnam they develop some care policy they clearly a defy that okay for on-site system if the total volume of the waste water reaches is less than 50 cubic meter per day from some household or from some facility is considered as on-site system f all screwed the system is can be from 50 to 200 cubic meter per day but for any system that let then 1,000 cubic meter per day and then the wastewater generated close to the salt then consider as a decent isolation system so that is the definition from Vietnam but many other agency LIBOR da-ad we also start to install many missions our system and also according to the definition basically the decentralized system is the system that trip that collect and treat and reuse a wastewater at or near the salt generation there so that is a quite good definition of the the recent rice system and normally I said that the listening system normally the capacity of the system is less than 1000 cubic meter per day normally is considered as a decentralized system according to the model as well so as I said that the distance right system had can attract the limitation from the central system which require a lot of cost and very complexity in operation in maintenance so as a result in decentralized sanitation option can be considered as an interim solution before the country install the central system this care practice has been observed in many countries for example in Philippines so I will explain you more detail about a good story from Philippine in the next slide in the future let us like in terms of the benefits what is the benefits of the centralized system compared to the centralized system so there's a lot of benefits that we can observe for example in terms of economic benefits is this a nice set resistant require low cost investment low investment cost the design work is can be the the system can be designed in a molar in a modular design and there's subtype options for the integration into the broader urban land use and development pattern and then in term of the social aspect it can help to improve the high teens have to reduce the hair risk and also give opportunity for the PPP model public-private partnership model and also the what can observe can also provide a lot of low-cost solution so in term of environmental point of view it can help to improve the water quality it can help to improve the water needs because of the effluent from the distance rail system can be reused for the invocation for agriculture and so on and then this insurance system can offer an opportunity for the nutrient recovery and also has been observed in Medicaid so this is a very typical decentralized system as we have observed in many country this system who have been observed in in Thailand has been installed in the in the inner communities near the soccer soccer province in Thailand for the for the system is about 50 cubic meter per days they use septic tanks constructed wetland and waste supplies and porn another system has been installed in chair my they also use another wicks filter and also septic tank and so on there's a variety of technology can be used alight under the decentralized system this another example has been observed in Vietnam under the under the border project they also in stone the anaerobic buffer reactor and then the Efrain is another effluent going to the anaerobic filter and then from anaerobic filter they go to the constructed wetland yeah so this cap treated wastewater from the this entire system can be reused in agriculture this another example from the decent system has been observed in Amir ma the number of the lesion stress system has been installed for the high-rise building for the hospital for the industry is now increasing a lot this is another example in in Philippine I know no inertia and based on our information we found that in from the total of 500 14th Regency and city in Indonesia the separate treatment plan and system plan has been installed in to more than 280 once a city and Regency and only to at the moment only the 103 IP LT has already been operated and the remaining is not yet operate because some reason because lack of slack I said that because the household they only cone for the SAVAK provider when they have problem with a septic tank so that's why there's like obstruct so many plan has not yet been operate and open yeah this is another example from Philippine so they also consider the distance lies wastewater treatment system approach as a options that has been include in the five-year plans on sanitation program in 15 that they will replicate this cap system from from from this year the the more and more decentralized system will be installed in Philippine especially for the follow very urban area or for the committee area remote community area yeah so these are another example from 15 that I can say that different technology has been introduced under the distant slice system not only to treat the domestic wastewater from household but also the user recent fry technology to with Dirac where the wastewater former public Marquis from the school and from hotel and resort and so on so they used quite variety of technology not only the anaerobic buffer reactor but also they use some cairo tating bicycle contractor as well this cap technology has been used to treat the public wastewater from the public markets in cebu so this again is another technologies we had observed not only using the anarwick buffer reactor they also use a lagoon and so summer system the user chemical conditioning some chemical to treat and similarly they also use a constructed wetland or West ablation porn has been very popular so in order to understand what kept challenge for promoting the recent life was what a madman and set a specimen in ASEAN City ASEAN country so we already conduct our crabs project and study in all the country and this is a common challenge that we often observe in this country so in term of the policy and government and regulation we found that there's many unclear institutional arrangement and overlapping rows has been observed in many countries for example in term of sanitation or interval wastewater yes many agency has been aside to do to be responsible so there's a lot of left a lot of Bro has been overlapped so and then very difficult to fire who is actually fully responsible for that and the second one is like the detail guy lie so although the the central government they give some kind direction to the local local government but because of lack of guidelines so it's very difficult for local government to know how to keep it want to promote the recent survive what God knows technological solution what kind of financial scheme they can interview and so on so like a meteor I'll I'd like to know how is another challenge for them and another issue is the lack of emphasis on the freako slab or surface Messman basically when they build the weight world's treatment plan they only focus on the west wall treatments but for that for the bye-bye product form the West Point treatment plan nice luck they doesn't care much about this the second one internal capacity so there's a lot there's lack of technical capacity among the among the in chats person among the government officer especially from local government so that is a very challenged all the lows low I said that we cover the low wastewater collection rice so that is difficult for the for the company for the Soviet provider to rate the revenue you know to cover for the operation and maintenance and activity in the activity and also another issue in terms of comply and issue because of the lack of standard operating procedure so that is very difficult to ensure the the proper operation and maintenance of this listen drive system so many many decisions my system lies Simas after the contraction actually nobody taking care a monitor of maintain the system I know that's in some area is the has been regularly empty by the coming community-based organization but also it very challenge for them because like because like a technical expert I and also because of like above but just to come for the company so in many case the community-based organization have to manually remove slot by themself and then use this slot for as a fertilizer in their garden that is what I observed in many case in Bandung city and also in Denpasar City and another issue about the low awareness and demand level so because of the lack of the awareness not only among the sanitation planner the local government but also among the local people as a result they are not many people are not willing to pay for the cost of the treatment of the wastewater for example in in Denpasar I see that I talked with I talked with you Pete you pee you pity the company who in charge of managing the wastewater system and they say that they can only collect wastewater free from the hotel and restaurant and so on but I mean they cannot collect a fee from the from the household because the wastewater fee has been separately collect together that's separately with with what to build so in the water bill is a PDM company PDM only collect a water supply fee but the waste waters company only collect the waste water fee so it's very challenging to collect these three so they already read this issue during our discussion as a result there's like a fee for the operation in maintained and is this system so that is very difficult for them to maintain this system for long run and another issue is a financial I said that the the wastewater fee even is has been collected but the steam very low so it cannot have to recover for the cost for the operation and maintenance of the system so however although they so many challenge that has been observed in many ASEAN country however we can also see a lot of good example one of the good example is a good story that we observe from Philippine especially from Manila and you know that in in in Philippine in Manila the wastewater sector has been hindered to the private sector private company Manila water and may not water scene 1997 at SAS high so before before handling to the private company the Manila City only have one wet water treatment plant one one one one see wet treatment plant and then only three percent of population has been connected with sewer system and the majority of households been relying on the septic tank and for the seriously I said only once see what treatment system but can you see here after after mmm chain after twenty years the number of civic treatment plan has increased to 40 so we are wondering how they can make it happen and one of the one of the solution they said that after the company after the west-world sector has been handed to the private company to company money land water and Menelik water they immediately develop some katratzi how to increase the percentage of the wastewater treatment by introducing some type decentralized system so instead of jumping in to inverse in the centralized system the big system they invest in the additional system and then after 10 year 15 year they gradually after the publishin grow after the urban urbanization has been expand and they start to upgrade this decentralized system into the central system so that has been very effectively and you can see here that for example on the left hand you can see that first they develop a community by system Leidy what insane amount and so on so after certain year and then the publication has grown and then desti increasing and they gradually they upgrade this one into the into the centralized system yeah like this so it means that the decentralized approach for both wastewater and concept s has been introduced as interim solution before they move to the bigger investment on the centralized system so this is some example that has been the system with that it has been observed the distance-wise separate treatment plants has been contracted in the in Manila by Manila water company and also it is another example that by the money not mater so they use their combinations of the wastewater and slot they treat together so by using this technology for the mixed treatment of the receptors and what's water they can significantly we do a lot of costs and also can improve the efficiency of the treatment process so this treatment system this facility has to be designed to treat 2,400 cubic meter of the wastewater and 240 cubic meter of the surface every day the reason is because the wastewater normally in the household they use a septic tank so Bo D has been significantly reduced before going to the treatment plan so that may very difficult for that for the treatment facility normally in the infants wastewater to the wastewater treatment plant the ability and use you study in the tech book is like 200 or 150 mi gram per liter but in the reality because many countries are you to come by system including rain water and sea wastewater and so on that's why it reducibility in many care for example in vietnam the ability before going to the west treatment plan only 50 or 70 milligrams per liter so that it make it very difficult so that's why in this guy they try to combine with the circuit they tried to be water the acceptors and then get this guy supernatant and then make the inject into the influent mix with waste water so that increase have to increase the VOD to 250 micron per liter so that frankly take the treatment process more effectively so this is a detailed technology just has been introduced by manila water another example we can observe from the Nonthaburi in Thailand they also introduced such type the in sensory system for four separate treatment and the slug after the scepters has been used as a fertilizer and these fertilizers they can sell to the farmer and gardener and with about five ten per month in average so they can get the revenue and its revenue who can help the plant to continue to operate the plant I maintain the plant yeah so this example I already give you a lot of example from ASEAN country and ASEAN country now I give you another example from developed country like Japan how this entire system has been introduced your hands so in Japan in in the year 2050 in year 2060 many farmers as now has been had use nice soil nice size mean that the the fresh human weight they use another nice or at a fertilizer say they use this cap nice soil as a fertilizer to fodder for their for their agriculture and so on as a fertilizer but until the Year 2060 8070 there's a lot of pollution has been caused by the imager or direct pitcher of the wastewater treatment system as a result the Government of Japan start to introduce a system called Joe castle Yokoso escribe on-site system all canvas can be applied as a recent system this has been start to be in to use in 1997 t so as a result IBM see here after introduce a joker saw system the the the the risk of the hair infection has been significantly reduced in from the Year 2070 to the year 2080 and after that after the year 2009 TS they start to introduce more advanced advanced yoga so system together with some curve series system line out a more centralized system from the year 2080 so as you can see here that is the situation in 2070 and the situation nowaday you can see that in 1997 so a lot of pollution has been observed right because of the lack of treatment system like you can see in Tokyo Bay in Canada River and in some Kai's in the Kitakyushu way so on and a I said that the Java saw system has been considered as one of the alternative system in Japan in addition to the serious system lies that is centralized treatment plants and so on so the wastewater from household had been treated in joka so system and then the slug will be regularly collected by some company and this lot has been transferred to the nice soil treatment facility and where the nice oil has been treated and that the the the the output from this treatment they can put you as a fertilizer this is a it is a population trends in Japan who use a nice soil treatment system and domestic wastewater treatment system you can see here that nowadays majority of the publications can accept to the sewer system but at the same time just in a certain percentage of the people of the household stain using the Yokoso system basically this household it has been located in a remote area or in the mountain area where there's no access to the service system so as a result the java saw system is thin very effective for this for those area and this is a percentage of people except to the domestic wastewater treatment by side of the community and you can see here that for example for the for the city with more than 50,000 people there stood a certain percentage up of the people using a Java so like JJ yeah like 19.5% of the system of the household in Enzo city still using the Joker so system yeah so that's why you can see the although Japan is a quite liberal country but the on-site sensation and this and this interesting tension system now Joker so plays still very play a very important role this much so many cup java saw has been introduced in japan depend on the scale yoga soul may be small scale is conserved the population from fire to fifty people with the capacity is let and ten cubic meter per day all they can have a medium system which conserve the capacity is less than 100 cubic meter per day now it can be more than hundred right and again we can combine several modular so we can increase up to 500 or 1000 cubic meter per day yeah basically in term of the treatment principle is similar as other conventional treatment system like another which treatment process and are Arabic and then sanitation and so on so I mean the the treatment principle is the same but they make it very compact so it's a combined in one compact system and then because of the demands maybe because requirement for the effluence which are standard depend on a city and by city so they can modify the Joker so system to make it more complected so that it can improve it can improve the treatment efficiency so that it can produce the VOD can be let in tamii gram per liter and so on so they can introduce some membrane technology not only to reduce beauty theory but also to remove remove the nutrient line nachos then and for for us so on yeah you can see here that they come by the membrane technology so can even reduce the VOD up to let then five me gram per liter so this is this guy very advanced Yokoso system so again we're going to the from the former's joker so system all from the accepted from the central I treatment plan has been collected and treated they use a mud methane fermentation for the for fall for biogas generations and then the buyers the solid part will be the water and then use it as a composting material in many Medicaid yeah so this is another example from Kawasaki CD the the slat form the all for wastewater treatment plan has been collected and be water and then they the start has been put in the iteration pant and the the action acts from the incineration plant will be used for the cement industry and also further for the other constructions purpose and so on so that is a real example and in some cases a also they even try to convert the the the bio solid into the fewer in the fewer like in some case has been observed in Tokyo and so on so in this case they converse the slug into the choco in your chuckle and this choco has been sell to the thermal power plants for the power generation this is very advanced technology has been introduced in one of the projects by the Tokyo Metropolitan Government and in order to introduce this cap joke also system the Japanese government has also need to provide some kind of subsidy for the constructions at the beginning so the government can support up to 50% of the subsidized from the beginning and this is a central government and local government also provides some kind of support and the small part will be borne by the by the household and basically the wastewater treatment wastewater treatment is the responsibility of the polluter is been from household but for the rainwater is to be the responsibility of the local government yeah so that's why for the rainwater collection and treatment is to be fully under responsibility at the of the of the government he's a central and local government as a result the water quality has been improved significantly in Japan's over the lots are more than 30 year yeah okay so in order to address this gap challenge both in wastewater and septet we need to have a cup visit model to encourage the back span from the private sector because I said that Mikkel for this area we cannot get the revenue would not like water supply water supply we can get a fee on the water user but for the scepters it's very challenge to collect our fee so that's why we need to develop some kind innovative visit model so that we can have the fun from the private sector but at the same time we need also give them some copper tunity further further for raising their revenue and then some benefit so that's why in order to make this one we need exceed a nice we broke their own visit model so that we can promote the collaboration between the private and the government topic and private collaboration and so I said that we work with the Denpasar city in from 2017 and 2018 in order to support a city we will some car model to observe the challenge before the project we implement we found that mode of the septics has been collected by private company and this separate a private company I'm where they come to collect a circuit they even collect some free from household and then in many case this cap status has been illegally dumped in somewhere that we cannot observe only small percent has been collected and transport to the soo-jung distance right separate children plants and then the this scrap company they collect some fee from the private service provider if you want to be just set it here you need to pay some fee to the u PT and then after the treatment the slot will be the bio solid part will be being at the moment is dumping around the field we didn't plan mean why the effluent we'd be chucked into the in the water body so under these situations a lot of illegal dumping has cannot be controlled so that is difficult for local government to control this situation so after that we discuss with local government and then we discuss with private company and we develop a new visit model that tried to stop the illegal dumping at the same time to try to encourage the private sector involvement in this process so we discuss with them and then we propose ok schedule dislodging because at the moment because luckily men from household so that very difficult for the company to collect the slack as well so that's why we require a - we suggest the government local government to introduce the schedule is watching and then have a card subcontract with the private company and the private company when they when they collect the waste the slot for household they are not allowed to collect a fee from house so directly but instead of that they will bring this slot and then transport to the treatment plan in statement plan it depend on the Imams what they bring to the treatment plan they can get some fail from the EPT and then at the same time the household instead of paid a fee directly to private company now we introduce some kind as fee we could sentence and fee this sentence and free is new for the wastewater treatment and set the treatment which is should be integrated in the water wheel yeah and then the house of invite directly for fee to the provincial government and the provincial government will use this money to cover for operation and maintenance plan and at the same time this money can be used to return to pay father for the private company who bring the to the treatment plan so this cab mechanism we call simplify insecticide be just more oh we has been discussed with this model with the damned episod city and III thinks now I was is now so now concering to introduce this cap schedule nice lodgings program based on our discussion so far yeah and in our to support to introduce the schedule slashing program we also proposed some kind of GS system so that it can have the local government for example to monitor the efficiency of the of the private sector operation so first we we subject them to develop a kind database of the household for example name of the household location what is the bowl of a septic tank in your house what is a cyber septic tank and when did the last dislodging septic tank and then by on this information we will be blowback f GS map so for example for household which has not been this luck about a lot 3 year then you can see the green color first household which has dislodge within the last three to five year it can be
Resume
Categories