Low-cost decentralized sanitation system based on vacuum collection and reuse of excreta and kitchen waste (Chinese Academy of Sciences, China)

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  • JKMakowka
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  • Just call me Kris :)
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Re: Low-cost decentralized sanitation system based on vacuum collection and reuse of excreta and kitchen waste (Chinese Academy of Sciences, China)

fanbin wrote: According to the capacity of the small production line we have established so far, I can complete a project of 10,000 households in one year at a competitive price comparing with the conventional sewer and wastewater treatment.


This sounds excellent. Thanks for sharing. Could you maybe also share some pictures of the specific equippment you developed? In one of the presentations I see a stainless steel vacuum chamber that looks very interesting.

As for uploading a video, I guess YouTube and the like are blocked in China? Maybe try one of the federated PeerTube instances:
joinpeertube.org/
It's a sort of decentralized YouTube that should be accessible from China I hope.

Microbiologist & emergency WASH specialist
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  • Marine Chief Engineer by profession (1971- present) and at present Senior Faculty in Marine Engg. Deptt. Vels University, Chennai, India. Also proficient in giving Environmental solutions, Prof. Ajit Seshadri, Environment Consultant located at Chennai, India
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Re: Low-cost decentralized sanitation system based on vacuum collection and reuse of excreta and kitchen waste (Chinese Academy of Sciences, China)

Dear JKM and Chn Acdmy of Sciences
The practices evolved are most apt, in areas where elctrcity is not present,
Conventional manual removal would be resorted to in a safe and sanitary manner.

How are they treated and what safe produces are evolved ex Nght soil,
Will be studied, adapted for any local condition, and used in communities.
As desired, site pics may be shared, pl.

Well wishes.
Ajit Seshadri

Prof. Ajit Seshadri, Senior Faculty in Marine Engg. Deptt. Vels University, and
Environment Consultant (Water shed Mngmnt, WWT, WASH, others) Chennai, India
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  • fanbin
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  • A scientist who is working on a systematic solution to the resource-oriented sanitation, which is different from flush-toilet-end-pipe-treatment, meets the needs of not only the poor but also the rich, so that all people can live a good and sustainable happy life.
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Re: Low-cost decentralized sanitation system based on vacuum collection and reuse of excreta and kitchen waste (Chinese Academy of Sciences, China)

In order to better explain our technology to people who haven't been to the demonstration project we did, we made a video. I wish the site could let me upload the video without relying on a third party, but it's ok if I can't. There are always some political factors that will affect academic exchanges, hehe! I have attached several pictures of the main equipment.
The first picture is a dual-pupm station that can drive 100 toilets (50 household), the second is one type of vacuum toilets, and the third is one type of household kitchen waste disposer.

Bin Fan
Professor

Research Center for Eco-environmental Sciences (RCEES), Chinese Academy of Sciences (CAS) ( www.rcees.ac.cn )

North research center for rural wastewater treatment technology, ministry of housing and urban-rural development of the people’s republic of China ( www.nrcrwtt.ac.cn/ )

Shuangqing Road 18, Haidian District, Beijing 100085
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  • fanbin
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  • A scientist who is working on a systematic solution to the resource-oriented sanitation, which is different from flush-toilet-end-pipe-treatment, meets the needs of not only the poor but also the rich, so that all people can live a good and sustainable happy life.
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Re: Low-cost decentralized sanitation system based on vacuum collection and reuse of excreta and kitchen waste (Chinese Academy of Sciences, China)

I know many people are very concerned about how to provide basic sanitation for the poorest people.There are also many such people in China, usually in rural areas. But it must be made clear that every improvement in human life must come at a price.The price includes physical or mental as well as monetary.
We can divide the goal of human environmental sanitation progress into five steps: the hygienic-type, the esthetic-type, the convenient-type (modern type), the environmental-type and the sustainable-type. The Hygienic-type is the most basic form of sanitation that meets fundamental health reruirements. The esthetic-type is to add the most basic aesthetic requirements onto the hygenic-type. The convenient-type is to add the most basic modernization requirements, e.g.mechanization, onto the ecthetic-type. Simply speaking, the requirements are that the toilet can be installed in the bedroom and the toilet waste can leave the living room automatically and instantly. Environmental-type is on the basis of the convenient-type to increase the end-pipe treatment so as to make the discharges meet environmental standards. And the sustainable development not only meets the requirements of modern life, but also meets the requirements of sustainable development.
Of the five steps above, the one that requires the most money is the third. This is the main sign of modernization. By contrast, the first two ladders require very limited funds, the key is to promote people's diligence and aesthetics. However, the laziness and carelessness can not be solved through the simple investment of capital and technology, especially in rural areas. I once visited a remote home in China where there was no piping water supply. The family used a traditional composting toilet, a log cabin which was installed about 30 metres from the living room. The floor was covered with boards, with a rectangular hole cut in the middle. Urine and feces from the hole fall into the container below for composting, and the host periodically empties out the composted toilet waste to fertilize his vegetable garden. The toilet was clean and there was no unpleasant smell. In a place like this, instead of inventing a toilet system that doesn't use electricity, we need teach people how to practice good hygiene.

Bin Fan
Professor

Research Center for Eco-environmental Sciences (RCEES), Chinese Academy of Sciences (CAS) ( www.rcees.ac.cn )

North research center for rural wastewater treatment technology, ministry of housing and urban-rural development of the people’s republic of China ( www.nrcrwtt.ac.cn/ )

Shuangqing Road 18, Haidian District, Beijing 100085
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