Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) - optimising faecal sludge emptying, transportation, processing
(1 viewing) (1) Guest
  • Page:
  • 1
  • 2

TOPIC: Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) - optimising faecal sludge emptying, transportation, processing

Re: Recording of presentation: Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) 12 Feb 2014 15:19 #7358

  • AquaVerde
  • CONTACT
  • Posts: 331
  • Likes received: 50
  • Karma: 11
Dear Colleagues,

If you start thinking about the post title "Structuring of the fecal sludge market for the benefit of poor households..." I would understand this project is not mainly about technology like e.g. GIS-traking of the whereabouts of "honeysuckers" or de-watering of FS (Omni-Ingestor) at the spot...

If collection and treatment is 100% driven by private service providers as it is stated, should it not start with a clear and transparent line of financial interests involved? About possible profits to be made along the FS-line, from collection of FS to sale of surplus renewable energy produced. If no profits to be made with FS-business, who will cover the losses in future?

Possible way forward:
First the state want to improve FS-situation in Dakar (just a political statement), to do so the state is starting with an incentive (maybe financial supported by WB, EU or AfDB and others):

- Incentive, a clear commitment to purchase (via realistic price) in future ALL surplus renewable energy produced by the current (converted) three and future additional fecal sludge treatment plants (in future several biogas plants + CHP) = biogas-service providers.

- This biogas-service providers having through sale of energy reasonable profits and would have to PURCHASE by then collected fecal sludge from the owners of "honeysuckers", or they establish their own "honeysucker" fleets.

- Any sewage nearly without fecal sludge, as it is currently delivered by Dakar's "honey-suckers", would have no caloric/financial value for the biogas-service providers, therefore less payments. This means, in order to keep quality of delivered FS the "honeysuckers" are paid by the fecal sludge content (TS) delivered only.

Having an energy producing system with an open & transparent financial interests involved, will minimize illegal dumping, as the owner of "honeysuckers" would loos profit and additional it would avoid e.g. costly "gadget systems" of distrust like GIS-traking of the whereabouts of "honeysuckers" and avoid too high maintenance intensive de-watering of FS (Omni-Ingestor) at the spot. For the time being, not functional lance nozzle at nearly all Dakar's "honeysuckers", would be repaired by the owners (without "capacity building"), as functional lance nozzle would increase fecal sludge content during collection and would direct increase payments by biogas-service providers.

Is it too simple and too much "believe" in commercial thinking and interests?

Best Regards,
Detlef SCHWAGER

PS: My suggestion is not at all about any PPP (Public Private Partnership), as "open honesty & transparency on financial interests" are not part of any PPP-business strategies, as democratic controls are explicitly denied by secret treaties. see: en.wikipedia.org/wiki/Public%E2%80%93pri...tnership#Controversy and bankwatch.org/public-private-partnerships
www.aqua-verde.de
Sanitation-Solutions without external energy
Low-Tech Solutions with High-Tech Effects
"Inspired by Circular Economy"
www.flickr.com/photos/aqua-verde/
Last Edit: 13 Feb 2014 08:03 by AquaVerde.

The Newsletter "Boues mag" of Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar, Sénégal (ONAS) 27 May 2014 17:35 #8747

  • Onasbv
  • CONTACT
  • Posts: 4
  • Likes received: 0
  • Karma: 0
Thank you to find enclosed the newsletter “Boues mag” of Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar, Sénégal (ONAS).
Good reception.

Best regards,

Aissatou


Table of contents:

P. 03 Editorial
P. 04 News
P. 04 • Technical Committee of the PSMBV
P. 06 • The call center for pit emptying
P. 07 • Information and sharing with stakeholders at the municipality level
P. 09 Project dynamic
P. 09 • A guarantee fund for empties
P. 12 • Project for flood-prone areas in Pikine and Guédiawaye
P. 14 • Mechanical emptiers in Dakar : profile, work and services offered
P. 16 • Organizing the transportation of fecal sludge: A new approach in progress
P. 18 • Testing Platform for innovative sanitation technologies
P. 20 • Fecal Sludge: A Promising Market
P. 24 Innovation
P. 24 • After the PAQPUD ... towards an innovative and cost-effective management of fecal sludge
P. 28 Focus
P. 28 • Collection and transportation of sludge
P. 33 Interview
P. 33 • M. Ibra SOW, president of the Association of Senegalese Emptiers (AAAS)

ONASmagazinecover.jpg
Attachments:
  • Attachment This attachment is hidden for guests. Please log in or register to see it.
Last Edit: 27 May 2014 19:04 by muench. Reason: added ToC and cover

Re: The Newsletter "Boues mag" of Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar, Sénégal (ONAS) 27 May 2014 23:33 #8749

  • sahidul93
  • CONTACT
  • Better Environment, Better Life
  • Posts: 12
  • Likes received: 0
  • Karma: 0
Regards to Mbawe and Ibra sow. This is Sahidul from Bangladesh met you in Indah Water Konsortium, Malaysia.
How to get the newsletter?

Thanks,
Sahidul
SNV Netherlands Development Organisation
Bangladesh
Engr.Md.Sahidul Islam
Advisor, WASH
SNV-Netherlands Development Organization
Khulna, Bangladesh

Re: The Newsletter "Boues mag" of Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar, Sénégal (ONAS) 28 May 2014 08:49 #8752

  • dorothee.spuhler
  • CONTACT
  • Moderator
  • Water Engineer, Sustainable Sanitation and Water Management (SSWM) - Co-Lead of WG1 - One of the forum moderators
  • Posts: 142
  • Likes received: 44
  • Karma: 6
Dear Sahidul, once you are loged in, you should be able to see and download the attachments which appears at the end of the post,
Regards Dorothee
Dorothee Spuhler
WG1 Co-lead
Working with Sustainable Sanitation and Water Management (SSWM) based at at seecon, Switzerland
www.sswm.info / www.seecon.ch
This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Re: Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) - optimising faecal sludge emptying, transportation, processing 02 Jun 2014 12:52 #8822

  • jmily
  • CONTACT
  • Gret
  • Posts: 13
  • Likes received: 6
  • Karma: 1
Dear Mbaye,

We are still waiting for your answer to Elisabeth: how will you deal with very thich sludge without manual emptying? Will the omnidigestor be able to deal with it (with a high pressure water injection system)?

More infos on the truck being developed by your project?

Hope to see you soon in Dakar and Mauritania,

JM
Research & Development

Re: Recording of presentation: Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) 02 Jun 2014 14:08 #8824

  • mbaye
  • CONTACT
  • Mbaye Mb​​égu​​ér​​é PhD, is the National Coordinator of the program for the structuring of the fecal sludge market for the benefit of poor households in Dakar, funded by Bill and Melinda Gates Foundation.
  • Posts: 8
  • Likes received: 2
  • Karma: 4
Dear Elisabeth;

Better late than never. Finally, I answer your questions.

(1)
Elisabeth wrote:
You said that the institutional set-up in Senegal is very clear, and that ONAS is well placed because it is responsible for everything to do with sanitation. On the other hand, up until now, it was not concerned with emptying of septic tanks and pit latrines, as that's done by the private sector. Isn't that a contradiction? Does that mean ONAS was only responsible for piped sanitation until now, and not for non-piped sanitation?


ONAS is responsible for sanitation in urban centers in Senegal, both public sanitation as individual sanitation. However, the intervention of the ONAS in the field of on-site sanitation was not as important as what is done in collective sanitation. This is the criticism that had been hitherto made to ​​ONAS. With this program, ONAS seeks to better structure the fecal sludge sectorand establish an enabling environment for a better access to mechanical emptying.

(2)
You said ONAS wants to phase out the manual pit emptying. Which technical solutions do you have in mind to make very thick sludge (bottom layers of pit latrines) pumpable? I can only think of dilution with water. Or converting pit latrines to pour-flush latrines maybe (to reduce the amount of solid waste), like it was proposed by Dave Still in a WRC report in South Africa.


It must be said that Dakar, septic tanks are the most represented; nearly 80% of the individual items listed. Under these conditions, the sludge are not as thickened sludge that latrines (as found in many African countries). However, sludge from latrines herein are not pumpable by existing trucks. For this sludge, people still rely on manual emptying. This is why, ONAS attaches particular importance to the Omni Ingestor Which will be able to mobilize this thickened sludge. This machine will be tested in Dakar by the end of 2014.

(3)
How well are the 3 faecal sludge treatment plants that are already operational actually working? Do you have photos? When were they built and by whom? Which processes do they use? Which effluent quality do they achieve on the liquid stream? What happens with the solid part (e.g. dried faecal sludge), what is done with that? Any reuse activities?


The three existing fecal sludge treatment plants (FSTP) in Dakar works well. Actually, they consist of a solid/liquid separation process contiguous to wastewater treatment plant. After this solid/liquid separation process via a settling/thickening tank, the solids are dried in drying beds and liquid (supernatant from settlers and leachate from beds) are sent by co-treatment with sewage to the wastewater treatment plant.

The dried sludge from beds are sold as fertilizer to gardeners.

These FSTP were built in 2004 with funding from the World Bank.

(4)
You mentioned 2-3 innovative toilet technologies suitable for areas that are prone to flooding. What technologies do you have in mind there? UDDTs perhaps (urine-diverting dry toilets)?


We launched an international tender and more than 20 bids were received. They range from traditional dry toilet to toilet producing energy and without sludge. The selection is about to be made and detailed information will be shared later.

(5)
I didn't understand how this call centre works that you mentioned? Does that mean residents can call up a call centre when they want their septic tank emptied and then get quoted the best possible price for their location?


A call-in center that households call whenever they need to have their septic tank emptied, is implemented. While this was an novel addition in and of itself, even more innovative is that every time a call comes in, 9-15 trucks (of ~70 in the system) are invited to participate in an immediate auction where the lowest price earns the opportunity to do the emptying!

Since this system has gone into place, the average emptying fee to the household has dropped over 15% (from $57 to $48) and the new convenience – households used to have to leave their homes to find and negotiate with an emptier, then often negotiate again at their home – has led to more emptying jobs, so the truck operators and truck owners are also happy.

(6)
Can you tell us more about the proposed biogas plant for faecal sludge treatment (you mentioned co-treatment with other organic waste). Is this entirely funded by the BMGF? Is it a full-scale plant? Why would they fund such a plant for you, what is their reasoning behind it? What is the connection here with China?


A biogas production unit from fecal sludge is under construction at Keur Massar (suburb of Dakar). This station is fully funded by the Gates Foundation. The objective is to make energy that once sold, can balance the operation of fecal sludge treatment plants (FSTP) or even make them profitable. Once FSTP profitable, it can participate to reduce the tipping fee and thus affect the cost of mechanical emptying. This station is sized by Beijing University, under contract with the Gates Foundation.

(7)
And finally a question about the Omni-ingestor: how far progressed is the development by now? Do you have any photos? Is there a prototype yet?
I read the report by the company Synapse (www.synapse.com/home-page?destination=node/427) (link to the report: susana.org/lang-en/library/library?view=...p;type=2&id=1718). The report is pretty interesting (thanks to the BMGF for commissioning the report and sharing it). This could be a big business if such an omni-ingestor could be developed. Mind you, I fear the maintenance issue could be a real headache since already the conventional vacuum tankers are not well maintained usually...


The omni investor is always under development and will be tested in Dakar at the end of this year.
Dr. Mbaye Mbéguéré
Senegal National Sanitation Utility, ONAS
Dakar, Sénégal
Last Edit: 02 Jun 2014 14:29 by muench.
The following user(s) like this post: muench

Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) 11 Jul 2014 09:29 #9309

  • muench
  • CONTACT
  • Moderator
  • Freelance consultant (former roles: program manager, lecturer, process engineer)
  • Posts: 794
  • Likes received: 249
  • Karma: 18
Dear Mbaye,

Thanks for your detailed responses to my questions!

I think your case could be very interesting for the people following the other discussion thread on "treatment options for septage":
forum.susana.org/forum/categories/53-fae...treatment-of-septage

So in your case, you are using the "conventional" treatment of faecal sludge which consists of:

The three existing fecal sludge treatment plants (FSTP) in Dakar works well. Actually, they consist of a solid/liquid separation process contiguous to wastewater treatment plant. After this solid/liquid separation process via a settling/thickening tank, the solids are dried in drying beds and liquid (supernatant from settlers and leachate from beds) are sent by co-treatment with sewage to the wastewater treatment plant.

The dried sludge from beds are sold as fertilizer to gardeners.


I look forward to hearing more from you, when the results become available, regarding:
  • "We launched an international tender and more than 20 bids were received. They range from traditional dry toilet to toilet producing energy and without sludge. The selection is about to be made and detailed information will be shared later."
  • "A biogas production unit from fecal sludge is under construction at Keur Massar (suburb of Dakar)."
  • "The omni investor is always under development and will be tested in Dakar at the end of this year." (my explanation about the "omni-ingestor": it is a piece of equipment that is meant to treat faecal sludge at the point of the vacuum tanker so that clean water is left behind at the premises and only the more concentrated (thickened) sludge is removed in the vacuum tanker).

Also, it was nice to see that you and ONAS got a raving review from Brian Arbogast from the Gates Foundation in his latest blog post:

A Tale of Two Cities: Accra and Dakar

www.impatientoptimists.org/Posts/2014/06...ties-Accra-and-Dakar

(perhaps the people in Accra were less happy about this, but some health competition between two cities may be a good thing. )

Brian wrote:

The National Office for Sanitation in Senegal (ONAS) is a well-run organization populated by professionals who take their roles seriously. They have traditionally owned and operated all of the fecal sludge and waste-water treatment plants in the country. But last year, they privatized the operations of three fecal sludge treatment plants in Dakar, something rare in Africa.

The plants’ new operator is led by Mme. Faye Lena Tall, who owns vacuum trucks of her own. Since taking over the plants she has doubled the hours they are open and improved maintenance, while dramatically improving their profitability. Her agreement has her share her profits with ONAS, who now are happy making more money than they did when they had to run the plants!


Regards,
Elisabeth
Dr. Elisabeth von Muench
Independent consultant
Frankfurt, Germany
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Twitter: @EvMuench
Website: www.ostella.de
Member of SuSanA (www.susana.org)
Last Edit: 11 Jul 2014 09:31 by muench.

Re: Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) 14 Jul 2014 17:18 #9349

  • jonpar
  • CONTACT
  • Senior WASH Programme Development Strategist with Oxfam GB - working with government agencies, local authorities and the private sector in order to strengthen resilience and preparedness for emergencies
  • Posts: 137
  • Likes received: 40
  • Karma: 15
Featured User
Oct 2014
Dear Mbaye,

I am working on a project design for a proposal to BMGF for Freetown and we are considering various mechanisms that may strengthen the lines of accountability between customers and service providers.

I am very interested to learn note about the call centre works that you refer. As well increasing competition and lowering prices for the customer, this may also help with monitoring and regulation. So, as you say, this is a novel idea that can have various benefits.

I would be very interested to hear more about how this is structured according to different customer groups

Is this the same for all types of customer? Are there service levels that are specified that the operator needs to adhere to/achieve?

Is this only for small businesses for trucks? Presumably, the operators have to be registered to receive the request for pit emptying - do they also need to be members of the association of pit emptiers?

I understand that the bargaining is based on one submission from the desludging company. What happens if the job turns out to be much more difficult than they expected due to local situation? The benefit of negotiation on the ground is that the desludger can assess more easily the scale/nature of the job and adjust the charge accordingly. If this is done remotely, then this is difficult. I suppose the desludger can visit the site, but I am not sure that this is realistic. So, there is possibility that the householder ends up paying more than they were quoted for, or the operator takes a loss or does the job poorly to cut costs.... what happens in this case ?

Look forward to hearing from you and learning more from your experiences.

best regards, Jonathan
Jonathan Parkinson
B.Eng (Hons) MSc DIC PhD
Email : This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Telephone: + 44 20 300 48528
.........................................................

The Newsletter "Boues mag" N​​°3 of Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar, Sénégal (ONAS) 22 Jul 2014 09:57 #9432

  • Onasbv
  • CONTACT
  • Posts: 4
  • Likes received: 0
  • Karma: 0
Dear Madam /Sir,

Thank you to find enclosed in English the magazine “Boues mag” number three (N°3) of Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar (PSMBV).
Good reception.

Cover page:
BouesMag.jpg



TABLE OF CONTENTS :

P. 03 Editorial

P. 04 News

P. 04 Reinvent the Toilet Fair the Promotion of Innovation

P. 06 Second Steering Committee of the PSMBV

P. 07 Innovative Sanitation Technologies in Flooded Areas: Two Prototypes Selected

P. 08 Submission of the first funding application files

P. 9 Project dynamic

P. 9 Ordering desludging services on the phone in Dakar, now a reality

P. 11 Participatory Monitoring and Evaluation (SEP) and Decision Making

P. 14 The WSA agency in the PSMBV project

P. 16 Panafrican Agency for Water and Sanitation in Africa (WSA)

P. 17 Innovation

P. 17 Sustainable access of the poor to adequate sanitation

P. 18 Innovative Sanitation Technologies (IST) in Dakar’s Suburbs: A real need for populations living in flood-prone areas

P. 19 Reduction of electricity costs: A New Approach to behavioral Change

P. 21 RANAS research technology

P.24 Adding value to sludge from wastewater or desludgings

P. 26 Dossier

P. 26 Collective sanitation and management of fecal sludge in Dakar

P. 33 Focus

P. 33 Innovative technology for the value addition to fecal sludge

P. 35 Interview

P. 35 Dr. Doulaye Koné, Project Manager at the Bill and Melinda Gates Foundation


Best regards,
Aissatou Basse

This attachment is hidden for guests. Please log in or register to see it.
Last Edit: 22 Jul 2014 14:38 by muench.

The Website in english and in french of the PSMBV. 03 Sep 2014 10:06 #9997

  • Onasbv
  • CONTACT
  • Posts: 4
  • Likes received: 0
  • Karma: 0
Dear Madam /Sir,


Thank you to find below the link of the website in french and in english of the Program of Structuring of Fecal Sludge Market for the Benefit of poor households in Dakar (PSMBV).
You are most welcome in our website and you can find all the informations and the news about the PSMBV inside.

www.onasbv.sn/

Good reception.

Aissatou Basse

Structuring of the fecal sludge market for the benefit of poor households in Dakar, Senegal (ONAS) - optimising faecal sludge emptying, transportation, processing 07 Oct 2014 12:52 #10403

  • mbaye
  • CONTACT
  • Mbaye Mb​​égu​​ér​​é PhD, is the National Coordinator of the program for the structuring of the fecal sludge market for the benefit of poor households in Dakar, funded by Bill and Melinda Gates Foundation.
  • Posts: 8
  • Likes received: 2
  • Karma: 4
Dear Jonathan,

Sorry for the delay in responding. Here are my answers to your questions from your post on 14 July:

You wrote:
I am very interested to learn note about the call centre works that you refer. As well increasing competition and lowering prices for the customer, this may also help with monitoring and regulation. So, as you say, this is a novel idea that can have various benefits.

I would be very interested to hear more about how this is structured according to different customer groups

Is this the same for all types of customer? Are there service levels that are specified that the operator needs to adhere to/achieve?

Is this only for small businesses for trucks? Presumably, the operators have to be registered to receive the request for pit emptying - do they also need to be members of the association of pit emptiers?


Thank you for your interest about the call center. This tool is designed for the emptying of household's pit but it can be used by any entity that needs an desludging service.
It applies to all emptying companies, the smallest to the largest. All these companies are identified, their trucks geolocalized and therefore present in the database of the call center. The auctions do not apply to companies but to individual trucks. You do not need to be a member of the Association of emptiers for your participation in the auction.

You wrote:
I understand that the bargaining is based on one submission from the desludging company. What happens if the job turns out to be much more difficult than they expected due to local situation? The benefit of negotiation on the ground is that the desludger can assess more easily the scale/nature of the job and adjust the charge accordingly. If this is done remotely, then this is difficult. I suppose the desludger can visit the site, but I am not sure that this is realistic. So, there is possibility that the householder ends up paying more than they were quoted for, or the operator takes a loss or does the job poorly to cut costs.... what happens in this case ?


Under these conditions, it is possible that some emptiers, once on the ground, face difficulties in accessing or the customer requires several rotations. In this case, they do not empty the pit and inform the center.
It must be said that the desludgers are very familiar with the neighborhoods in which they operate. The location is listed in the auction and in this case, they adjust their prices accordingly. In a case where an emptier win the market and made a bad quality work, the customer shall inform the Centre during the call quality control (which is done after every emptying activity) and then the desludger is sanctioned. Example of penalty: at its upcoming participation in an auction, the system automatically puts 2,000 FCFA more on his offer; which will make him less competitive.

I remain at your disposal for any other questions.

Regards,
Mbaye
Dr. Mbaye Mbéguéré
Senegal National Sanitation Utility, ONAS
Dakar, Sénégal
Last Edit: 07 Oct 2014 11:02 by muench.
  • Page:
  • 1
  • 2
Time to create page: 0.65 seconds