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Alternative sanitation solutions versus centralised sewerage system
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- christian.rieck
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Re: Alternative sanitation solutions versus centralised sewerage system
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let me reply on your question about
I'm afraid I don't understand the distinction you make between urine diversion and composting systems and how they are not part of ECOSAN ? ... do you have links to something clarifying what you are referring to ?
I was trying to say that UDDTs and composting systems do not necessarly needs to be built with the purpose of reuse but also for safe disposal. Just like the eThekwini Project where urine is infiltrated and the dehydrated faecal matter is burried. www.susana.org/lang-en/case-studies?view...peitem&type=2&id=791
Especially in large scale systems the management of excreta and making sure it is hygically completely safe might be a barrier for ecosan, nevertheless the toilet technology might still be the most appropriate but with disposal instead of reuse.
Regards,
Christian
Enhanced Water Security and Sanitation (ENWASS)
Sanitation for Millions
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Re: Alternative sanitation solutions versus centralised sewerage system
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I have no idea about this biochar technology. I also would love to know more about it. If you could get in touch with Professor Reginald Mitchell. I also know that some universities in Germany like Hamburg-Harburg (Prof. Ralf Otterpohl) and TU Berlin (gasolar.us/2011/07/biochar-fertilizer-from-sewage-for-tanzania/) also research on biochar. I do not have a contact however. Would be great if you can find out more.
Best regards,
Christian
Enhanced Water Security and Sanitation (ENWASS)
Sanitation for Millions
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- I manage the Decentralized Wastewater Management for Adaptation to Climate Change in Jordan (ACC Project) and previously coordinated the Climate-friendly sanitation services in peri-urban areas of Lusaka project in Zambia. My background is in Management, Economics and Information Systems.
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Re: Alternative sanitation solutions versus centralised sewerage system
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Thanks for the pdf attachment. I find this idea particularly interesting due to reading I have done on biochar:
Do you know anything further on this particular idea / proposition?5. A community scale biochar production plant fed by human waste
Brian Von Herzen of the Climate Foundation and Professor Reginald Mitchell of Stanford University in Palo Alto, California, propose to design, build, and test a self contained
system that pyrolyzes (decomposes organic material at high temperatures without oxygen) human waste into a type of biological charcoal (biochar) that is used for carbon capture and storage. The system will be able to process two tons of human waste daily at a facility located in the slums of Nairobi.
How much do you know about biochar and its many applications?
Kind regards
Trevor
Decentralized Wastewater Management for Adaptation to Climate Change in Jordan (ACC Project)
Project Manager
Deutsche Gesellschaft für
Internationale Zusammenarbeit (GIZ) GmbH
Ministry of Water and Irrigation, Shmeisani,
Amman
Jordan
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Re: Alternative sanitation solutions versus centralised sewerage system
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You can find a nice overview of the Gates toilet design challenge in this pdf
www.gatesfoundation.org/watersanitationh...toilet-challenge.pdf. I am attaching it as well. The technologies range from biochar to microwave and solar technology. It all sounds quite complicated and technical, but whoever knows what comes out of it.
I also agree with sjoerd that the lack of offensive smells is key to the success of introduction of a new technology. Furthermore it should have at least the same level of comfort like a common flush toilet, otherwise the majority of users wont switch. Future will hopefully show some promising sanitation alternatives.
Cheers
Christian
Enhanced Water Security and Sanitation (ENWASS)
Sanitation for Millions
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Carol, I am very happy for the action you describe but you give us examples where the need or the fear push people to dry toilets. My feeling is that we have to be attractive in dry toilets especialy in Europe. We are on a maket and we have to use the tools of the market. If the customer wants a dry toilet, he will have it. I am manufacturing Ecodomeo toilets and I am selling my toilets to customers because they want it. The architects and public administration in most of the cases try to dissuade them from setting up dry toilets, but if the customer want it, he will have it.
As actors of that sector, it is our job to create attractive products.
For the price, it is a real problem also because the number of product produced now is so small in front of flush toilets ones. But we know that if we have volume, we can realy reduce prices, divided by 3 or 4 the existing ones.
Christian, what is the design challenge from Gate foundation ? Can this program can help us in that way ?
Ecodomeo - France
www.ecodomeo.com
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Long Term Composting, the minute we challenged the WC&sewering technology made very powerful enemies -- not just corporations but associations of sewer&water companies throughout the world with the means of protecting their interest through billion dollar contracts with PR-companies like Edelman and Burson & Marstellar. Those worldwide Water&Sewer associations, already have damage control contracts to protect their members interests, like for example the campaign to dispose of sludge on farmland as the only cheap way of getting rid of toxic sludge. See and apologies for the poor technical quality in the beginning and also for the slightly not so relevant sound track with spook music :-). But the message is very clear: any threats to the industry must be aware of the hidden obstacles that operate beneath the open market information but being backed by associate politicians, universities, journalists etc and operating in similar ways as the chemical industries promoting GMO-food and gaining legal victories all over the world clearly AGAINST the interest of consumers, organic farmers and ordinary citizens. Ecosan toilets are not yet perceived as a threat to this industry for as long as they keep outside the principal market or traditional and conventional WC & sewers.
So this is the reason why I think we have to be aware of reasons why alternatives to WC/sewers will always be sailing against both the wind and the current. Our best chance is to establish small niche markets until the technology becomes more known and accepted. Eventually the rising cost of sewers will topple the projects in communities outside the cities but we are not yet there. Google Jefferson county in Alabama declaring bankruptcy because of the cost of sewers.
I'm afraid I don't understand the distinction you make between urine diversion and composting systems and how they are not part of ECOSAN ? ... do you have links to something clarifying what you are referring to ?
I would also issue a note of warning about the Gates Foundation. They have been receiving huge amounts of proprietary information and so far chosen to ignore us. We have through several channels invited a dialogue without any response...
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Re: Alternative sanitation solutions versus centralised sewerage system
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Thanks for bringing up the example of long-term composting toilets. These clivus multrum seem to work well, to be well accepted and even appreciated by users of public toilets in the US as the one video on the website you mentioned in your first post suggests. So what kind of bottlenecks do you see why this technology has not picked up on a wide scale yet? Could more public awareness and a good (more agressive) sanitation marketing strategy really change the trend?
I agree with Emmanuelle that the Western countries have the potential to be trend setters for sanitation as they have done it (unintentially I guess) for the WC. In my opinion new solutions need to be more and at least equally convenient as flush toilets in order for the wider public to change technology. I am not sure if dry sanitation can really achieve this.
By the way I would like to mention that urine diversion toilets and composting toilets are not per se ecosan systems. They might as well dispose urine and faecal matter in safe way which can also be a sustainable solution (see eThekwini example - SuSanA case study).
Maybe the design challenge from Gate Foundation will bring up some brilliant ideas.
Cheers
Christian
Enhanced Water Security and Sanitation (ENWASS)
Sanitation for Millions
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Portland, Oregon sits on the Cascadia Subduction Zone and the United States Geologic Survey says that Oregon faces a 37% chance of a magnitude 8.0 or greater earthquake within the next 50 years. Our city is now making efforts to prepare. In collaboration with folks from Christchurch, SuSanA partner PHLUSH (Public Hygiene Lets Us Stay Human) developed the Christchurch Twin No-Mix Emergency Toilet, which city officials have endorsed. www.portlandonline.com/oem/index.cfm?c=56765
Portland's vulnerability to earthquakes has created an opportunity for citizens to explore alternatives to the "technological lock-in" that comes with sewered infrastructure. And we are supporting ReCode Oregon, Cloacina.org , the NW Permaculture Convergence and other groups to bring about code change to make site-built composting toilets part of updated building and plumbing codes.
Public Hygiene Lets Us Stay Human (PHLUSH)
1240 W. Sims Way #59, Port Townsend, Washington 98368 USA
Toilet availability is a human right and well-designed sanitation systems restore health to our cities, our waters and our soils.
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If Europe is an example for the whole world for flush toilets, can we think also on an action to developp dry toilets for the european market that are realy modern, designed, and attractive for european people ?
If we succed in creating this european market, it can give a good example for the other countries.
What do you think of that ?
Ecodomeo - France
www.ecodomeo.com
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- categories
- Sanitation systems
- Toilets without urine diversion
- Comparisons of various toilet types
- Alternative sanitation solutions versus centralised sewerage system