towards an improved faecal sludge management (fsm) eawag.ch ... towards an improved faecal sludge...
Post on 19-Apr-2018
Embed Size (px)
Proceedings of the 1st International Symposium
and Workshop on Faecal Sludge Management (FSM)
Policy. Dakar, Senegal, 9 12 May 2006
Towards an Improved Faecal Sludge Management (FSM)
Doulaye Kon, Martin Strauss and Darren SaywellSeptember 2007
International Water Association
Bank of Netherlands WaterPartnership, BNWP
Faecal Sludge Management (FSM) 2007
Scientific CommitteeBaba Coulibaly, ONAS, SenegalDoulaye Kon, Sandec, SwitzerlandAlioune Ndiaye, ONAS, SenegalMartin Strauss, Sandec, SwitzerlandDarren Saywell, IWA, United KingdomTonino Zellweger, Sandec, Switzerland
Organising CommitteeBaba Coulibaly, ONAS, Senegal (Co-chair)Alioune Ndiaye, ONAS, Senegal (Executive Secretary)Madiembe Diouf, ONAS, SenegalBassirou Sow, ONAS, SenegalMame Awa Fall, ONAS, SenegalMartin Strauss, Sandec, Switzerland (Co-chair)Doulaye Kon, Sandec, SwitzerlandHalidou Koanda, Sandec, SwitzerlandMichael Steiner, Sandec, SwitzerlandCaterina Dalla Torre, Sandec, Switzerland
SponsorsUN-HabitatThe World Bank (Bank of Netherlands Water Partnership Program (BNWP))Water and Sanitation Programme (WSP)Swiss Agency for Development and Cooperation (SDC)
ContactsDr Doulaye Kon Eawag/SandecUeberlandstrasse 133CH-8600 Dbendorf, Switzerland Tel.: +41 (0)44 823 52 86/+ 823 55 firstname.lastname@example.org
Dr Darren SaywellIInternational Water AssociationAlliance House, 12 Caxton StreetLondon SW1H 0QS, United KingdomTel.: +44 (0)20 76 54 55 email@example.com
Faecal Sludge Management (FSM) 2007
Executive Summary 4
The Dakar Declaration 6
Towards an Improved Faecal Sludge Management
1. Introduction 7
2. Rationales and objectives 7
3. Targeted audiences and participants 7
4. Dynamics of the Symposium/methodology 8
5. FSM key challenges and case studies 9
6. Measures and tools to address FSM challenges 9
7. Winning proposals 10
8. Evaluation of the Symposium 11
9. The Symposium CD 11
Annex 1: Programme of the Symposium 12
Annex 2: Opening and closing speech by the Minister and 14 CEO of ONAS
Annex 3: Workshop results: mitigation measures and tools 16
Annex 4: Concrete measures proposed by the participants 26
Annex 5: List of participants 28
Citation: Kon D., Strauss M. and Saywell D. (2007). Towards an improved faecal sludge management. Proceeding of the first international symposium on faecal sludge management policy. Dakar, Senegal, May 2006, Dbendorf, Eawag publishing. 32 pp.
Table of Contents
4 Faecal Sludge Management (FSM) 2007
Managing the faecal sludges collected from on-site sanitation systems is a crucial element in public health protection and key to successful water and sanitation projects especially since one vacuum truck dumping sludge indiscriminately is equivalent to the open defaecation of 5 000 people! While urban on-site sanitation programmes have been experiencing a major thrust over the last 1015 years, the managing of faecal sludges (FS) accumulating in these installations has largely remained the stepchild of urban sanitation. As a consequence, the faecal film covering many urban areas of developing countries is persisting, with the known health and environmental hazards and impairment of urban space.
The 1st International Symposium-cum-Workshop on Faecal Sludge Management (FSM) Policy in developing countries was therefore held in Dakar, Senegal, from 9 to 12 May 2006. The Sym-posium hosted some 70 participants from 20 sub-Saharan and European countries (cf. the comprehensive list of participants in Annex 5), such as policy-makers, funding agencies and enterpris-es/NGOs active in the sanitation field. It was conducted under the patronage of the Senegal National Sanitation Utility (ONAS), the In-ternational Water Association (IWA) and the Swiss Federal Insti-tute of Aquatic Science and Technology (Eawag/Sandec), and co-fi-nanced by UN-Habitat, the World Bank (Bank of Netherlands Water Partnership Program (BNWP), and the Swiss Agency for Develop-ment and Cooperation (SDC). During the four-day symposium, the participants exchanged experiences and identified key subjects and challenges. The work conducted in groups and presentations given by the participants provided tools and concrete measures to improve faecal sludge management.Faecal matter is generally regarded as a taboo subject and something dirty to be disposed of as quickly and discreetly as possible. In the context of the symposium, the discussions on faecal matter ranged from toilet design, faecal sludge emptying, haulage and treatment to its reuse as a source of organic matter and nutrients. Salient elements of the presentations during the 1st day of drawing the scene comprised:- A new concept of latrine design to facilitate hygienic emptying- Health risks of flying toilets in slum areas- Faceless emptying entrepreneurs- Complaints raised by the owner of an emptying company about
the ever increasing road toll illegally levied by the police force- High-ranking policy-makers breaking the taboo of manual
emptying and discussing formalisation of this profession- Low-cost faecal sludge treatment options producing hygieni-
cally safe biosolids- Promising approaches for improved FSM currently developed
in sub-Saharan Africa (e. g. Burkina Faso, Ghana, Senegal)- A relevant short film on on-site sanitation and improvements
achieved by appropriate FS management produced by ONAS (broadcast also on national television)
- A municipal director reporting on sustainable FS management procedures with the private sector playing a prominent role.
During the 2nd and 3rd day of the symposium, six working groups deliberated upon specific aspects of faecal sludge management following the truncation of challenges into six themes. This led to the following results:
Planning aspects The authorities are hardly aware of the problems and health risks associated with poor faecal sludge management. To date, there is a long list of missing elements and measures in most settings that have to be developed and taken into consideration;
Discharge standards; physical town planning (e. g. land acquisi-tion for treatment); inclusion of FSM in strategic planning at nation-al and municipal level (starting with the ToR for the consultants!); definition of participatory planning approaches for urban sanitation, including FSM; identification and involvement of relevant stake-holders, including households; definition of areas and coordination of responsibilities; legal framework at national and municipal level (laws and ordinances addressing FSM); strengthening the profes-sional capacities of municipal services (effective decentralisation!); planning financing strategies and sustained money fluxes (fee and premium structure).
Technical aspectsWell-trained sanitary or environmental engineers are required to develop appropriate FS treatment alternatives and select options best adapted to local conditions and needs. The main criteria for selecting an adequate option include: land requirements, treatment objective and treatment standards (type of technology, use of biosolids, discharge of liquid fraction), establishment of locally appropriate standards for the reusable biosolids and for the FS liquid fraction to be discharged, monitoring, operation and maintenance requirements, cost factors, skill requirements, as well as risk of failure and potential impact of failure.
Manual pit emptying will continue to play a key role for decades to come if latrine design is not reconsidered. Hence, development of FS technologies and collection strategies to reduce the health risks for emptiers and to enhance the haulage radius for manual pit emptiers (donkey or tractor-drawn collection vehicles, transfer sta-tions?) are imperative.
The search for appropriate treatment options and treatment plants scales (centralised vs. satellite treatment works) starts al-ready with the emptying of on-site sanitation systems, which have to be accessed and pumped out. Therefore, a change in latrine de-sign must be contemplated (e. g. selecting and promoting pits of minor depth to reduce sludge consolidation and thickening, and equipping latrines with fixed pipes reaching the bottom of the pits to allow easy pumping and hygienic emptying (cf. presentation of Manus Coffey, in the Symposium CD).
Institutional and legal aspectsIn many countries, efforts to decentralise responsibilities has created a vacuum in sanitation infrastructure and service provision, notably FSM. Responsibilities are not clearly defined, professional skills at municipal level are mostly missing and a legal framework, including know-how at municipal level, are often lacking. Establishing a ministry in charge of sanitation could help solve this problem, as it would reduce the splitting up of responsibilities among the different ministries and authorities. This would require the setting up of a regulatory basis for sanitation in general, and for faecal sludge management in particular, including appropriate (i.e. affordable and enforceable) standards for biosolids and liquids originating from low-cost faecal sludge treatment plants (FSTPs).
Faecal Sludge Management (FSM) 2007
The following elements are necessary for a sound legal frame-work in urban sanitation/FSM:- Licensing FS collection entrepreneurs and FSTP operators
(contractees) by the municipality- Establishing national legislation on FSM in general and
treatment requirements/product quality- Defining the role and responsibility of each stakeholder- Tariff system- Setting up regulat