SuSanA - Forum Kunena Site Syndication http://forum.susana.org/ Sat, 23 May 2015 05:43:17 +0000 Kunena 1.6 http://forum.susana.org/components/com_kunena/template/default/images/icons/rss.png SuSanA - Forum http://forum.susana.org/ en-gb Re: Latest Publications of the SNV-NODE-Bolivia to readers in Spanish - by: JKMakowka http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13369 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13369 muench wrote:

What makes El Alto special compared to other towns in Bolovia? Why are there so many UDDTs there but not elsewhere? It is a bit like the "eThekwini" (Durban) of South Africa? Do you have a particularly good municipality there or was it just because for some reason Sweden picked that place to support with this project?


Well Raul can probably answer that better, but having been there just a few months ago I can see why it was chosen. El Alto is basically the part of the capital (La Paz) where the poorer people live. It is located in the upper part at about 4000m and is cold and very dry for most of the year. So good conditions for for UDDTs especially because the water-supply of this high up part of the city is quite a challenge.]]>
Urine diversion systems (includes UDDT and UD flush toilet) Mon, 18 May 2015 13:08:37 +0000
Re: Latest Publications of the SNV-NODE-Bolivia to readers in Spanish - by: muench http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13365 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13365
Thanks for this information. Always good to hear from someone in Bolivia, and glad that you can bridge our language divide (English/Spanish) so well! So thank you!

For those who haven't seen it yet, we have a SuSanA case study from 2012 about the UDDTs and composting in El Alto, La Paz, Bolivia (which Raul mentioned in his post) in English and Spanish here:
www.susana.org/en/resources/case-studies/details/1583

I have a few small questions for you:

(1)
When you speak of dry toilets and ecological sanitation, you are referring to the urine-diverting dry toilets (UDDTs) and reuse, right? Just to be sure.
You mentioned: "More than 6.500 inhabitants were beneficiated with ecological sanitation" in El Alto.

(2)
What makes El Alto special compared to other towns in Bolovia? Why are there so many UDDTs there but not elsewhere? It is a bit like the "eThekwini" (Durban) of South Africa? Do you have a particularly good municipality there or was it just because for some reason Sweden picked that place to support with this project?

(3)
You mentioned decentralized wastewater treatment but didn't say which technology. Is it constructed wetlands?

(4)
What kind of reuse activities are popular in Bolivia for the urine, fecal matter and the treated effluent from the wastewater treatment plants? Which crops do the people grow and how does it fit with the Bolivian legislation? Are the crops just for own consumption or also sold on the markets? If sold, how do the buyers react of they know about the reuse activities?

(5)
You mentioned: "An important document related to Dry Toilets Program in Bolivia was recently presented by the Deputy Minister of Water and Sanitation. This document which is now part of the public policy of the country had the active participation of the three implementing partners of the NODE project."
Could you make this document available via the SuSanA library?

(6)
And what are your experiences with Community-Led Total Sanitation (CLTS)? Could you please comment on that in the other thread where it was said that CLTS was not successful in Bolivia? This is the thread (go to my post on page 2 from 5 May 2015 if the link doesn't take you there exactly):
forum.susana.org/forum/categories/5-clts...2&start=12#13206

Thanks a lot,
Elisabeth]]>
Urine diversion systems (includes UDDT and UD flush toilet) Mon, 18 May 2015 08:58:08 +0000
Re: TERRA PRETA SANITATION (TPS): Urine diversion or no diversion? - by: GeorgLiebig http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/7509-terra-preta-sanitation-tps-urine-diversion-or-no-diversion#13355 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/7509-terra-preta-sanitation-tps-urine-diversion-or-no-diversion#13355
thanks a lot for your thoughts and sorry for this very, very late reply. As I also mentioned in the other post I was asking this questions since there was a competition on this topic and I wanted to know what the SuSanA community thinks about it.
You find the competition here: www.gcsm.eu/gcsm_award.html
Because I had so much work I had to stop thinking about this model, unfortunately. But you can find the contributions of the other groups on the same webpage: www.gcsm.eu/gcsm_award.html

You are definitely right that the software part is at least as important as the hardware! Thanks for your insights on that aswell. Nowadays I completely understand that it is not possible to have a general model, since the solution is always so case-dependent.

I am now finalizing my master thesis where I look at the diffusion of composting toilets in community gardens in Berlin and which parameters and variables affect the decision to adopt a composting toilet. I also look at the adoption potential of a specific technology that I call TPPS (Terra Preta Pasteurization Sanitation), where faeces are sanitized through a pasteurization process. Let me know if you are interested in it, I can send it to you after submission (also to other people, if someone else is reading this eventually...just send me pm).

Best,
Georg]]>
Urine diversion systems (includes UDDT and UD flush toilet) Fri, 15 May 2015 17:03:24 +0000
Re: Latest Publications of the SNV-NODE-Bolivia to readers in Spanish - by: rsilveti http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13341 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13341
Attached information on SNV-NODO-Bolivia, activities and challenges for the future.

Ecological Sanitation, Sustainable Solutions and Climate Change in Bolivia

Bolivia has one of the biggest challenges in water and sanitation agenda, which is to attenuate the percentage gap, in terms of existing coverage between the two services: water (82%) and sanitation (57%). Besides Bolivian agenda raises the universality of services for 2025. This challenge requires putting a special emphasis on the dissemination of unconventional options that corresponds precisely to the initiative of Decentralized Sustainable Sanitation Node Project. Project has the expertise and service management of the Dutch Development Cooperation (SNV), and is supported financially by the Swedish Embassy
Decentralized NODE Sustainable Sanitation Project, works Ecological Sanitation vision based on a holistic approach rather than a purely technical concept. It contains five components that work simultaneously: Demand Generation, Technology and construction, operational, corporate and social management, reuse of resources and social strategy, this last one is cross-cutting to the other four components.
This requires, promoting environmentally friendly, accessible and participatory technologies, and also generating greater capabilities, for the implementation of decentralized sustainable sanitation systems in different areas of Bolivia. Project interventions have focused on the following areas:

a)Dry Toilets, where it has been developed an approach to service chain whose links consist in Providers, Users, Collection and Transport, Treatment and Production and Marketing of compost.
Each of these links has been developed specifically in a closing cycle vision that promotes sustainability concept both in institutions and beneficiaries.
Dry Toilets are Innovative alternatives facing the lack of improved sanitation and they contribute the compliance with the human right to sanitation.
Dry toilets promote efficient savings in water usage (District 7 El Alto saves 36.748,20 m3 per year)
More than 6.500 inhabitants were beneficiated with ecological sanitation and more than 15000 thousand people is sensitized about the usage of this type of sanitation systems.

b)Decentralized wastewater treatment plants, have developed a proposed management model that identifies three key parameters: system ownership, operation, maintenance and monitoring.
Decentralized Waste Water Treatment Plants face the lack of treatment (78% not treated) focusing reuse and food security.
These plants have several advantages, such as lower investment costs, operation and maintenance (O & M) required with smaller pipe diameters and lower volumes of excavation and movement land for lying. Because of its lower degree of technological sophistication, they require a lower level of technical expertise and less continuity and permanence of staff for O & M systems, lowering costs and reducing tariffs.
This attributes make the approach more accessible to rural areas, small cities and peri urban areas with potential for reuse of treated waste water for different purposes. Also contributes to strengthen and increase sanitation services with a medium- and long-term vision; to seek greener cities and reduce the effects of climate change on populations which by their condition of resources are more vulnerable not only to climatic events, but the aggressiveness of a changing climate.
More than 10,000 people have benefited through the implementation of D-WWTP.

Key Notes about Decentralized Sustainable Sanitation

• Demand generating of technology and construction, operations and social management, and reuse of resources as the basis of decentralized sanitation system are the main components of the Holistic Model of Sustainability.
• DSS promotes human health; it does not generate environmental degradation, makes rational use of water resources and returns nutrients to Earth, through an integral approach that addresses from demand generation, appropriation of technology, operation and maintenance, to the reuse of final products.
• Through management and coordination, Project has had a strong impact on the decisions of local, municipal governments.
• NODE Project is creating new ways of associativity in sustainable management models, those implying public and not public entities participation along the service chai in dry toilets systems, and public and private participation concerning operation and maintenance to Decentralized Waste Water treatment Plants.
• An important document related to Dry Toilets Program in Bolivia was recently presented by the Deputy Minister of Water and Sanitation. This document which is now part of the public policy of the country had the active participation of the three implementing partners of the NODE project.
Dry toilets program is planning to implement 320.000 units across the country over the next years. Therefore there is ample scope for the support of international cooperation.

Challenges on Implementation Strategy

- Include in the public agenda non-conventional systems, as an effective option to increase sanitation access and coverage in Bolivia.

- Improve public investment, in order to narrow the differences between urban and rural areas (up to 2008 MM of US $ 399 invested in the urban area and $ 96MM of us in rural areas)

- Reduce inequities in coverage, between departments - some departments with water and sanitation coverage close to 100% (Tarija, Santa Cruz); and other barely reach to 50% (Chuquisaca, Beni, Pando).

- Addressing metropolitan peri-urban areas; La Paz - El Alto; Cochabamba and Santa Cruz, with peri urban deficit in both water and sanitation. poverty belts; vulnerabilities; insecurity. Health problems and environmental pollution.

- Increase the systematization and knowledge - Improving water and sanitation indicators related to aspects of quality and enable effective and safe public policies; including migration, growth and urban planning.

I also attached some of our publications to readers in Spanish.

Raul D Silveti


[attachment:1]C:\fakepath\ESTUDIO DE MERCADO SNV baja.pdf[/attachment]]]>
Urine diversion systems (includes UDDT and UD flush toilet) Thu, 14 May 2015 15:11:07 +0000
Re: JADE start construction of EcoSan toilet through Business model - by: wambuak http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/5746-jade-start-construction-of-ecosan-toilet-through-business-model?limit=12&start=12#13304 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/5746-jade-start-construction-of-ecosan-toilet-through-business-model?limit=12&start=12#13304
I work for Jomo Kenyatta University of Agriculture and Technology (JKUAT) and I serve in a Department known as Sustainable Materials Research and Technology Centre (SMARTEC). Eco-toilet may be of interest to us. Please let me know how we can collaborate.

James Wambua]]>
Urine diversion systems (includes UDDT and UD flush toilet) Tue, 12 May 2015 10:09:21 +0000
Re: Latest Publications of the SNV-NODE-Bolivia to readers in Spanish - by: muench http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13287 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13287
Could you please say a few sentences about these publications (in English or in Spanish)? Please tells us something about the content and who should read these publications and why.

I don't speak Spanish but I had a look at them and they look very nice! I see lots of photos of UDDTs (urine-diverting dry toilets) and reuse activities, also I saw the LaDePa process depicted for fecal sludge processing.

I have moved the thread to this category here on urine diversion because I thought it fits best (although some of the work might fit better into the category on reuse activities).

Also could you please explain to us what SNV-NODE-Bolivia is?
I know SNV is Netherlands Develpment Organisation (en.wikipedia.org/wiki/SNV_Netherlands_Development_Organisation) but what is NODE?

Is that the same node that was once supported by SEI and which Madeleine has told us about in the past? (e.g. here: forum.susana.org/forum/categories/34-uri...2&start=12#11111)

Regards,
Elisabeth]]>
Urine diversion systems (includes UDDT and UD flush toilet) Mon, 11 May 2015 06:54:56 +0000
Latest Publications of the SNV-NODE-Bolivia to readers in Spanish - by: rsilveti http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13284 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13284-latest-publications-of-the-snv-node-bolivia-to-readers-in-spanish#13284 Urine diversion systems (includes UDDT and UD flush toilet) Sun, 10 May 2015 20:30:29 +0000 Re: Request for plastics expert for UDDT - by: DrBates http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11079-request-for-plastics-expert-for-uddt#13274 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11079-request-for-plastics-expert-for-uddt#13274 Urine diversion systems (includes UDDT and UD flush toilet) Sun, 10 May 2015 10:37:32 +0000 Re: Request for plastics expert for UDDT - by: DrBates http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11079-request-for-plastics-expert-for-uddt#13273 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11079-request-for-plastics-expert-for-uddt#13273 Urine diversion systems (includes UDDT and UD flush toilet) Sun, 10 May 2015 10:34:59 +0000 Re: JADE start construction of EcoSan toilet through Business model - by: sampark http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/5746-jade-start-construction-of-ecosan-toilet-through-business-model?limit=12&start=12#13264 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/5746-jade-start-construction-of-ecosan-toilet-through-business-model?limit=12&start=12#13264 Have you prepared now to start in India ? I am waiting for your feedback.

Regards,]]>
Urine diversion systems (includes UDDT and UD flush toilet) Sun, 10 May 2015 05:01:36 +0000
Re: Portable UDDT – used in floating islands with vermicompost - by: christoph http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11511-portable-uddt--used-in-floating-islands-with-vermicompost#13208 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11511-portable-uddt--used-in-floating-islands-with-vermicompost#13208 just some quick answers (which will not be very helpful).
The project was a strict commercial project... no aid money, therefore no money to follow up, accompanying or something like that. We did some follow up on our own.
- What is the responsibility of the household for the treatment process?

Each household was responsible (we are talking about 10 households)

- What kind of pathogen treatment are you using and how efficient are they?

We did not a specific (controlled) pathogen removal, just a composting process in a box – main aim was more to reduce volume in order to reduce transport necessities.

- What sources of cover material have you used and how do you provide it to the users.

As described in the manual there is a whole range of cover materials – we do prefer saw dust. We did not provide the material as operation was not our task.
Sorry – we would love to do more about the total project or to roll it out, but we had no funding.

Regards
Christoph]]>
Urine diversion systems (includes UDDT and UD flush toilet) Tue, 05 May 2015 11:15:07 +0000
Re: Portable UDDT – used in floating islands with vermicompost - by: davidpereira http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11511-portable-uddt--used-in-floating-islands-with-vermicompost#13197 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/11511-portable-uddt--used-in-floating-islands-with-vermicompost#13197
I'm also working with a UDDT prototype in Ecuador, and I'm very interested in the project you have shared.

It seems to be a good sanitation solution, and its good to know that you are making some different treatments for the feces and urine. About that, how does it works the process of collecting 30 L of humanure on each place and take it to one centralized treatment plant?
Speciffically:

- What is the reponsibility of the household for the treatment process?

- What kind of pathogen treatment are you using and how efficient are they?

- What sources of cover material have you used and how do you provide it to the users?

Thank you for the answer.

You can also see about our toilet at: www.fundacioninterris.org/afichett.pdf *


Regards!

David Pereira


* Or see here on the forum:
forum.susana.org/forum/categories/106-us...on-in-terris-ecuador
(added by moderator)]]>
Urine diversion systems (includes UDDT and UD flush toilet) Mon, 04 May 2015 20:17:40 +0000
Is anyone still using lime in urine-diverting dry toilets (UDDTs)? Alkaline versus natural UDDTs... - by: muench http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13182-is-anyone-still-using-lime-in-urine-diverting-dry-toilets-uddts-alkaline-versus-natural-uddts#13182 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/13182-is-anyone-still-using-lime-in-urine-diverting-dry-toilets-uddts-alkaline-versus-natural-uddts#13182 forum.susana.org/forum/profile/userid-5431) about using lime in urine-diverting dry toilets (UDDTs).

David's experience in Mexico (which is however not current, his involvement ceased temporarily in 2008) was that lime is commonly used in UDDTs with the aim to reduce odour and to kill pathogens.

My experience from what I have read is that pretty much nobody else is using lime (anymore?) in UDDTs these days around the world. More common is ash, soil or compost (or in the case of Chris Canaday's experiences: compost derived from the UDDTs themselves), or to use no cover material at all (see also, of course, on Wikipedia here: en.wikipedia.org/wiki/Urine-diverting_dr...ilet#Cover_materials).

What speaks against using lime? I would say the costs and also it probably makes the product less attractive for reuse afterwards unless the soil where it is applied really needs alkalinity.

Heike Hoffmann had in the past told me about the use of lime in UDDTs in Peru which she opposed. This is work done by the NGO CENCA, we have a couple of their documents in the SuSanA library here: www.susana.org/en/resources/library?search=cenca (Heike had pointed out to me flaws in their designs, so don't think you can just copy their work).

Heike also posted about lime in UDDTs here on the forum a year ago:
forum.susana.org/forum/categories/53-fae...12&start=24#9180

Hi to all,
I put my personal opinion about the aspects mentioned by Elisabeth (lime use in UD toilets in Peru), I do not have own experience of dealing with lime, but we did carry out in Peru experiments concerning inactivation methods of pathogens in UD material and the specifc effects to soil conditions (incl. plant/corn growth).

1. In Peru lime use didn’t work out in UD-toilets :

- Case 1: People used a lot of lime (“the more the better”), the result was a “fecal rock” in the vault, which only could be removed with pickaxe (an idea was to grind it and REUSE as dry material in the UD toilet; in my opinion it was not a good idea).

- Case 2: When all (given) lime was consumed, people did not buy new lime, because it was too complicated to use it or to get it, or too expensive or not important enough to do it.


And here is more information from David Bates about lime use in UDDTs in Mexico:

Lime is very abundant in Mexico...in my observation, it was "relatively inexpensive"....that is a middle class engineer talking. For those that can't afford the lime, we strongly encouraged ash, or generous portions of dry soil. Many men of the families participating are construction workers and very accustomed to working with lime as they use it their work everywhere to make stone walls and cobblestone pavement. I guess the ability to use quicklime in the UDDT's then is partially geographically - and culturally- based, and related to the construction aspect of their economy

www.loc.gov/today/placesinthenews/archiv...0321_ringoffire.html

geo-mexico.com/?p=8899


Am I right to say that lime use in UDDTs is pretty much a thing of the past, except for some exceptional cases maybe?

Regards,
Elisabeth]]>
Urine diversion systems (includes UDDT and UD flush toilet) Mon, 04 May 2015 09:33:32 +0000
Reply: How should we call the excreta-derived product of a composting toilet or a UDDT? Do we need a new term? - by: VigyanVijay http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/12719-how-should-we-call-the-excreta-derived-product-of-a-composting-toilet-or-a-uddt-do-we-need-a-new-term?limit=12&start=60#13104 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/12719-how-should-we-call-the-excreta-derived-product-of-a-composting-toilet-or-a-uddt-do-we-need-a-new-term?limit=12&start=60#13104
We try and use a simpler term so that all understand the meaning of new terms.

Between desiccation and dehydration, dehydration is simpler and easier word to comprehend.. I think both mean.. drying out.. release of moisture.. water vapour.. etc..

In the case of .. UDT- Urine Diverting Toilet .. is a better term..if we use UDDT.. then one has to be clear about the expansion of abbreviations etc..

Let us keep the words as simple as possible.. because we have all persons from different levels, education, working in this sector.. inclusive of conservancy personnel, scientists, social workers.. others.. All the best, keep up the good work on ..

-- Er. Ajit Seshadri, The Vigyan Vijay Foundation, New Delhi, India. www.vigyanvijay.org]]>
Urine diversion systems (includes UDDT and UD flush toilet) Wed, 29 Apr 2015 06:52:36 +0000
Re: How should we call the excreta-derived product of a composting toilet or a UDDT? Do we need a new term? - by: DrBates http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/12719-how-should-we-call-the-excreta-derived-product-of-a-composting-toilet-or-a-uddt-do-we-need-a-new-term?limit=12&start=60#13080 http://forum.susana.org/forum/categories/34-urine-diversion-systems-includes-uddt-and-ud-flush-toilet/12719-how-should-we-call-the-excreta-derived-product-of-a-composting-toilet-or-a-uddt-do-we-need-a-new-term?limit=12&start=60#13080
I use the term "desiccation" instead of "dehydration" in my publications and work.


a) Desiccation Toilets, in particular the ones I named : Alkaline Desiccation Toilets (ADT's) which by the way also divert urine, and desiccate the waste through generous quick lime use, or sometimes ash

---------------


If this argument is accepted, then the toilet solids from true UDDTs, the "partially-wet operating" UDT's and the ADT could all be called UDT's

UDT's would be able then to include:

Urine Diversion Dehydration Toilets
Urine Diversion Toilets
Alkaline Desiccation Toilets


Note: I know this industry is probably already very attached to UDDT....I don't expect this recommendation from this newcomer to SuSunA to be accepted....lol ]]>
Urine diversion systems (includes UDDT and UD flush toilet) Mon, 27 Apr 2015 10:46:48 +0000