urban sanitation service chains - loughborough university · 2011. 7. 13. · 3 why is sanitation...
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Developing knowledge and capacity in water and sanitation
Urban Sanitation Service Chains
Amaka Godfrey Assistant Programme Manager, WEDC
Urban sanitation – A time bomb!
• Urban population will more than double by 2030 (sub-Saharan Africa & Southern Asia)
• New arrivals settle in poor informal areas • Open defecation & use of shared unimproved
sanitation has increased • High population density with added pressure on
limited space • Not just faecal material but wastewater
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http://www.globalenvision.org
www.worldbank.org
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Why is sanitation poor in low-income urban areas?
• Informal, unplanned and ‘illegal’ • Difficult physical conditions (waste water issue?) • Limited space • Unconnected to existing networks • Heterogeneous & transient population • Unsuitable & inappropriate technologies • Competing priorities – sanitation lower on the
scale...........
Common types of sanitation facilities
• Flying toilet /(Peepoo bag!)-http://www.peepoople.com/ • Majority are pit latrines
– Basket – Tyre – Drum – Block
• Pour-flush latrines
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Who provides sanitation to the urban poor? (Informal sector – Small Independent Providers); NGOs...
Typology of SIPS Latrine construction Ø Pit diggers
Ø Untrained masons Ø Informally trained masons Ø Formally trained masons
Pit emptying / Sludge transportation
Ø Manual ‘emptiers’ (inlcuding manual pump) Ø Small vacuum ‘emptiers’ (e.g. Vacutug) Ø Large vacuum truck operators
Public facilities management
Ø Owner/operators of sanitary complexes (latrine and/or showers and laundry facilities)
Vendors of materials for latrines
Ø Retailers of latrine construction materials.
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http://www.kwaho.org/loc-d-kibera.html
Manual pit emptying
Mechanised pit emptying - Vacutug
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Sanitation service chains
Pit excavation • House owner
• Labourer
Lining & substructure
• Mason
• Labourer
Superstructure
• House owner
• Mason/carpenter
Transportation/disposal • Labourer
• House owner
• Truck operators
Emptying
• House owner
• Labourer
• Truck operators
• Any material
• Blocks • Blocks/slab
• Tyres, drums..
• Manual
• Manual /pump?
• Small vacuum truck
• Buried in the yard or drains
• Treatment centres or water bodies
Is there a demand for improved sanitation? YES and NO • Yes to demand but not so positive on uptake
Ø High cost Ø Inappropriate technologies Ø ‘Downstream’ maintenance
• Good news - Demand & uptake can be generated!!! Ø Using CLTS / Sanitation marketing
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Can CLTS be applied in urban areas?
• Yes but with challenges Ø Identify homogenous communities within the chaos Ø Identify and target leaders Ø ‘CLTS’ approach may need modifications Ø Combine with marketing – focus on appropriate
sanitation options Ø Support ‘downstream’ services!!!!!!!!! Ø You may have to create access to credit?
Sanitation marketing/CLTS in urban settings • Formative research
Ø existing conditions & why? (barriers) Ø People’s perception, drives, desires/attributes Ø Willingness and ability to pay
• Develop strategy Ø ‘Upstream’ services (Identify/develop appropriate
sanitation options and supply mechanism) Ø ‘Downstream’ services (emptying, transportation &
disposal – identify existing entrepreneurs)
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Sanitation marketing/CLTS in urban settings • Trigger change
Ø Target leaders Ø Use photos and videos of existing sanitation
• Lunch/promotion Ø Organise a lunch Ø Use local theatre groups and ‘foot soldiers’
• Monitor/review
Improving urban sanitation
• Almost impossible without Municipal support! • SIPS cannot do it alone! Need for partnership to
enhance their capacity • More research needed to develop appropriate,
affordable latrines, and pit emptying methods • Access to sanitation credit facilities
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Food for thought!
• Is the era of pit latrines in low-income urban areas over ?
• Is the presence of a slab equal to ‘improved’ sanitation?
• Is it really feasible for households alone to overcome these challenging physical conditions?
• How much is land tenure a de-motivating factor?