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Topics in Category: Other types of toilets - SuSanA Forum Sat, 24 Jun 2017 19:14:34 +0200 Joomla! - Open Source Content Management /media/kunena/images/icons/rss.png Topics in Category: Other types of toilets - SuSanA Forum en-gb Key documents for the sub-sub-category on arborloos - by: morgan This looks like an excellent contribution about Aborloo's - the "tree toilet." I think huge numbers must have been built now in countries like Malawi, Ethiopia, Kenya and elsewhere. So simple. Nature at work - yet again.
Cheers and keep well and active
Peter from Harare]]>
Arborloos Tue, 15 Mar 2016 11:07:26 +0100
Practical and technical questions on use and installation of SaTo pan - by: AndrewKoolhof - Was the SaTo pan installed with or without the complimentary SaTo Collection Box?
- And have people found any blockage issues due to the build-up of faeces/solids in the pipe connecting to the off-set pit due to the small amount of water used to flush the SaTo pan?

The key concern I have when installing without the plastic collection box is that faeces might easily get stuck/block in a concrete collection box. A concrete collection box would have a much 'rougher' finish than the plastic version, and with the small amounts of water used to flush the SaTo I thought this could easily lead to significant blocking issues. Particularly in Cambodia where off-set pits are common (instead of direct pits).

Any comments on experiences welcome!

SaTo pan (pit latrine with closing flap) Fri, 23 Jun 2017 12:30:27 +0200
South African Sanitation Technology Demonstration Programme (SASTEP) - Reinvented Toilet Technology Demonstration and Roadmap to Commercialization - by: SudhirPillay ) Programme under controlled conditions in eThekwini Municipality before being moved to its final destination in rural Eastern Cape.

The units have both pedestals and urinals, and are separated according to sex.

Please see photos attached.]]>
Innovations and research in toilet design Tue, 13 Jun 2017 12:40:06 +0200
The world can't wait for sewers - WSUP / EY Report on Clean Team Ghana - Advancing container-based sanitation businesses - by: muench
Thanks for posting the report and the in-depth comments! Do you both work for Clean Team or are you consultants for them (oh wait, Georges is with WSUP - which is supporting Clean Team, right?)? Was the report useful for you? Is Clean Team changing any of its approaches based on the findings?

I wasn't familiar with the abbreviation EY, so I looked it up. It's Earnst & Young whom I do know ("EY is a global leader in assurance, tax, transaction and advisory services." )

Then I wondered, was it expensive to use EY but I found this information:

With Clean Team having grappled with these challenges in Kumasi
for several years, WSUP engaged EY to help. Through Enterprise
Growth Services — EY’s not-for-profit practice dedicated to
supporting social impact businesses in low-income countries

a team worked with Clean Team to identify means by which it could
achieve profitability and position itself to scale, including assessing
the viability of its CBS model in other markets.

I see the report has already been uploaded to the SuSanA library which is great:

It's also been used already to inform the Wikipedia article on container-based sanitation, see here:

Georges and Katie, could you do me a favor and check if the way it is cited in the Wikipedia article is good? Have the main points from the report been translated well into lay person's terms? I've just added the information about PPPs which I found was quite interesting.

Oh and I also agree with the comment by someone * from the SOIL Haiti team who said:

Has anyone else noticed that the burden of proof seems to be much higher for Container-Based Sanitation technologies when compared to more traditional approaches? For instance, the first question anyone asks about CBS systems is "what is your breakeven point"? Do people building latrines get asked the same question?

The same applies to pathogen removal. You probably also get high scrutiny regarding pathogen removal during treatment of the collected fecal matter whereas nobody building pit latrines gets asked that question (OK, I guess it is slowly starting now with fecal sludge management that pathogen removal appears on the agenda but before it was a given that pathogens are not destroyed and nevertheless pit latrines are OK and count towards the SDG targets (Sustainable Devewlopment Goals), no further questions asked...).


* Dear SOIL Haiti team, please remember to sign with your name so that I don't have to call you "someone", thanks. :-)]]>
Container-based, mobile or bag-based toilets Mon, 29 May 2017 23:59:01 +0200
Updates about SaTo pan development and marketing - affordable, aspirational latrine products - by: cecile
Although the SaToPan provides a great improvement for existing pit toilets, thanks to the flap which is a barrier to odour and insects, some sanitation actors are held back in their efforts to develop the use of this product because improving toilets "does not count" in the JMP monitoring framework and in the MDG data.
Has anybody encountered this situation before and what do you suggest to "make it count"?

Best regards,
SaTo pan (pit latrine with closing flap) Sun, 14 May 2017 14:11:33 +0200
An Alternative to the Pit Latrine - by: dandreatta
This is an alternative to the simple pit latrine, It uses a barrel on its side, then the barrel is emptied by one of two means. The simplest version just has a spout, into which the contents of the barrel can be poured. The more complex version has a flexible tube attached to the barrel, which can server as part of a VIP style chimney, and as the barrel emptying method. Either method is neat and tidy.

The best way to show the system is the following video:

and I've attached a few still from the video below.

I expect this system will work well in places with a high water table or flooding, since it is a sealed container above ground level. I expect this will work well in places with loose soil, where an unlined pit latrine would collapse. I expect this would work well in places where sanitation must be set up in a hurry, and leftover barrels from some other task could be pressed into service. Perhaps a refugee camp? Of course, some organizational system must be in place to empty the barrel and transport the sludge away.

One person asked about the liquidity of the barrel contents. If it's a combination of urine and feces, it will be liquid enough to pour. Trash will flow easily through the large openings. Any flush water will make the content even more liquid. I would think this will not work with a composting or urine diverting toilet.


Dale Andreatta]]>
Innovations and research in toilet design Sun, 07 May 2017 18:44:07 +0200
Worm toilets and deworming tablets - by: muench
Nice to hear from you on the Forum, always great to see new people! Where are you based? I am guessing U.S. as you use the term "humanure" which is popular there. ;-)

Regarding your statement:

At the risk of stating the obvious, pharmaceuticals in general are excreted in the urine, so while they may be present in mixed humanure, diverting the urine from the feces resolves that concern.

From memory, I think it's right to say that most pharmaceuticals are excreted in the urine, but not all. Some you can also find in the feces. But I am not sure where the anthelminthic drugs end up, i.e. in urine or feces or both.

If anyone has time to look into this further, start with the PhD thesis of Martina Winker:
Winker, M. (2009). Pharmaceutical residues in urine and potential risks related to usage as fertiliser in agriculture. PhD thesis, Hamburg University of Technology (TUHH), Hamburg, Germany

Page 62 says:

Major parts of pharmaceuticals and their metabolites detected in municipal wastewater originate from urine although some substances show reasonable excretion via faeces.

Vermifilters for blackwater treatment, "worm toilets", "Tiger worm toilet" Wed, 12 Apr 2017 14:51:39 +0200
Update on SOIL's work in Haiti (social business model with mobile UDDTs, composting and reuse) - by: muench

P.S. I am still hoping that in the not too distant future we will also have a Wikipedia article on container based sanitation. Anyone keen to collaborate on this?

Thanks to our Cranfield student collaboration, we now do have such a Wikipedia article which is great!
Here it is: (further inputs and improvements are very welcome! See also this thread on the forum where you can comment: )

Nick, I have made a reference to your paper in the Wikipedia article now, with regards to costs, please take a look if you agree.

However, I had to use the 20 USD figure per month from the paper. In your forum post you said you can now do it at 12 USD per month per household. Do you have a new reference that we could use to quote for this figure?

Container-based, mobile or bag-based toilets Tue, 11 Apr 2017 16:07:05 +0200
A Water Saving Flush Toilet and Various Earth Toilets - by: Amos
These systems are yet in development, and need interested and governments and manufacturers. Please see for more details.

Thank you
Amos B]]>
Other types of toilets Mon, 13 Mar 2017 22:21:06 +0100
Bio Toilet for Tribal Areas in Odisha, India - by: Jeevanrekha ) a voluntary organisation has completed a Bio Toilet Project for 150 households in tribal areas of Daspalla and has declared 3 tribal villages as open defecation free villages. Thanks to CSR fund support of Care Today TV Fund.Visit following link-contact This email address is being protected from spambots. You need JavaScript enabled to view it.

Vermifilters for blackwater treatment, "worm toilets", "Tiger worm toilet" Thu, 16 Feb 2017 12:29:23 +0100
Eco-san in Ethiopia (other than Arba Minch) - and arborloos - by: canaday
Good luck with that big task. Feel free to post preliminary plans here, so we can comment on them.

From what I have read (since I have yet to do these), it seems that an ABR (Anaerobic Baffled Reactor) would be more reliable and easier to build and operate than a UASB, especially given that flows would be irregular across time.

Have you considered Vegetated Sand Filters (= subsurface treatment wetlands) for polishing the effluent? These would require less space, control smell, avoid mosquito breeding, and even produce forage for animals.

Water seems to be a scarce and precious resource in Addis Ababa, so it would be excellent for the university to set an example of innovative ways to conserve water and not contaminate rivers.

I attach some Suggestions for Sustainable Sanitation that I formulated for the reconstruction of the Earthquake Zone of Ecuador, which would also have great application in other parts of the world. (I also attached the same document in Spanish.) I especially encourage you to look at the concept of Closed-loop Flushwater Recycling, in which effluent never is released into the environment, but instead returns back to the same toilets, like a conveyor belt. Remember that no touches or drinks the water in the toilet, so if color, smell and major disease risk are removed, there should be no objections from the users. It would be key to demonstrate this first on a small scale, maybe for a single person, potentially the same researcher (maybe you).

Please let us know what you think of these ideas and what we can do to help you.

Best wishes,
Chris Canaday]]>
Arborloos Wed, 15 Feb 2017 10:34:33 +0100
Barrel Compost Toilets - by: AquaVerde
I found this "Open Source" Barrel Compost Toilets on the Internet:
from Text : Marilia Kalouli, Illustration : Nicolas Bedau

Best Regards,
Composting toilets Tue, 14 Feb 2017 15:49:41 +0100
The Tiger Toilet which works with worms - like in-situ vermi-composting (field trials in India, Uganda and Burma) - Bear Valley Ventures Limited and Oxfam UK - by: smecca Effectively, the GSAP Microflush toilet is open source. We only ask that those intending to build our toilets get proper training. Putting our training guide on-line opens the door to someone taking a shortcut or scaling in the wrong direction leaving a potential bad mark on our design. If you have artesans in a community where you are working, we would be happy to arrange training for them.
Thanks for your astute observations.
Vermifilters for blackwater treatment, "worm toilets", "Tiger worm toilet" Tue, 17 Jan 2017 20:11:37 +0100
Prototype Microflush-Biofil Toilet Facilities (Ghana Sustainable Aid Project, USA and Ghana) - by: marrath Vermifilters for blackwater treatment, "worm toilets", "Tiger worm toilet" Sun, 15 Jan 2017 10:04:08 +0100 The Nano Membrane Toilet (Cranfield University, UK) - latest results and publications since 2016 - by: AParker
The membrane will be modular. However, we would be nervous about installing the toilet without the membrane as the untreated liquid component will still be pretty nasty - basically feacally contaminated urine, which could cause significant groundwater contamination, depending on the local conditions. Our energy modelling suggests we will be able to get enough energy out of the faces to enable the membrane processes.

The membranes are hydrophobic so fouling is not too much of a problem (a paper on this is in preparation).

Innovations and research in toilet design Mon, 09 Jan 2017 12:36:13 +0100