The BRAC WASH programme has released a short video about their ongoing study in Bangladesh on the use of faecal sludge from double pit latrines as organic fertiliser.
The final evaluation of BRAC WASH I programme identified pit emptying and the safe final disposal of sludge as a key ‘second generation’ challenge for the near future. To address this, BRAC is undertaking action research to ensure the safe reuse of faecal sludge in the BRAC WASH II programme, answering the following questions:
- Does the faecal sludge comply with the WHO Guidelines on microbiological quality after one year of storage?
- What is the nutrient content of the faecal sludge?
- Is it possible to make faecal sludge-based organic fertiliser production commercially viable?
In 2013, the UK-based School of Civil Engineering at the University of Leeds won a BRAC WASH II research call for secondary treatment options for faecal sludge. Their project is called Value at the end of the Sanitation Value-chain (VeSV).
The University of Leeds is working together with three other partners: Bangladesh University of Engineering and Technology (BUET), NGO Forum for Public Health (Bangladesh), and IWMI International Water Management Institute (Sri Lanka).