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MarkFabian gravatar image
WaterAid

Faecal sludge treatment in high water table sandy soils

As part of a sanitation marketing project along the east coast of Madagascar several NGOs have made significant progress on construction of family latrines using SanMark approaches. The solutions that were developed were quite innovative and effective. The implementorshave identified teams to empty latrines, invested in latrine emptying equipment, and trained the teams on faecal sludge emptying. However, the main problem still remaining is treatment of faecal sludge. The two small towns where the project is being implemented contain sandy soils with high water table (mostly 0.5-3 m below surface), thus treatment options are limited. Waste burying integrated agriculture is not an option as is used in the high plateau of the country where the water table is quite low, and there is limited budget for more expensive options like biodigestion and complex DEWATS treatment. In South Africa, LADEPA faecal sludge drying machines are promising and potentially mobile, but not financially feasible in for this project.

I have done quite a bit of research with colleagues here in South Africa, but not come up with a n ideal solution yet. I am thinking that a DEWATS designed for high water table could work, but again, cost may be an issue.

Any ideas would be greatly appreciated as this is a high priority project at the moment!

click to hide/show revision 2
No.2 Revision

Faecal sludge treatment in high water table sandy soils

As part of a sanitation marketing project along the east coast of Madagascar several NGOs have made significant progress on construction of family latrines using SanMark approaches. The solutions that were developed were quite innovative and effective. The implementorshave identified teams to empty latrines, invested in latrine emptying equipment, and trained the teams on faecal sludge emptying. However, the main problem still remaining is treatment of faecal sludge. The two small towns where the project is being implemented contain sandy soils with high water table (mostly 0.5-3 m below surface), thus treatment options are limited. Waste burying integrated agriculture is not an option as is used in the high plateau of the country where the water table is quite low, and there is limited budget for more expensive options like biodigestion and complex DEWATS treatment. In South Africa, LADEPA faecal sludge drying machines are promising and potentially mobile, but not financially feasible in for this project.

I have done quite a bit of research with colleagues here in South Africa, but not come up with a n ideal solution yet. I am thinking that a DEWATS designed for high water table could work, but again, cost may be an issue.

Any ideas would be greatly appreciated as this is a high priority project at the moment!

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KnowledgePointAdmin gravatar image
RedR CCDRR

Faecal sludge treatment in high water table sandy soils

As part of a sanitation marketing project along the east coast of Madagascar several NGOs have made significant progress on construction of family latrines using SanMark approaches. The solutions that were developed were quite innovative and effective. The implementorshave identified teams to empty latrines, invested in latrine emptying equipment, and trained the teams on faecal sludge emptying. However, the main problem still remaining is treatment of faecal sludge. The two small towns where the project is being implemented contain sandy soils with high water table (mostly 0.5-3 m below surface), thus treatment options are limited. Waste burying integrated agriculture is not an option as is used in the high plateau of the country where the water table is quite low, and there is limited budget for more expensive options like biodigestion and complex DEWATS treatment. In South Africa, LADEPA faecal sludge drying machines are promising and potentially mobile, but not financially feasible in for this project.

I have done quite a bit of research with colleagues here in South Africa, but not come up with a n ideal solution yet. I am thinking that a DEWATS designed for high water table could work, but again, cost may be an issue.

Any ideas would be greatly appreciated as this is a high priority project at the moment!