Title: Treatment technologies in practice: on-the-ground experiences of faecal sludge and wastewater treatment
The operation of faecal sludge and wastewater treatment plants rarely plays out as they are described in a manual or textbook. Yet little has been documented on the real-life practical challenges involved. This gap limits the ability of planners and decision-makers to make the right investment choices. This compilation of case studies makes accessible the experiences and realities faced by people involved in the operation of faecal sludge and wastewater treatment, disposal, and reuse facilities, and the decisions that they had to make. Such knowledge can inform the selection of treatment technologies that are appropriate for expected contextual realities.
The compilation presents nine case studies of selected faecal sludge and wastewater treatment technologies, and disposal and reuse options from eight countries across Africa and Asia. These include: conventional sludge drying beds, mechanical screw presses, rotating bio-contactors, and Anaerobic Baffled Reactors (ABR) in Indonesia; constructed wetlands and coco peat filters in Bangladesh; Black Soldier Flies (BSF) and briquettes in Kenya; biogas digesters in Zambia; and deep row entrenchments in India, Malaysia, South Africa, and Benin.
The compilation is intended to be illustrative and is not comprehensive across all available technologies. Each case study outlines a system, its treatment purpose, its regulatory context, and the process that led to its selection. In addition, the realities, challenges, and opportunities of operating and maintaining each technology are described. The studies complement existing technical, process-oriented documents by providing accounts of field-based experiences with the treatment technologies.
Catégorie : Gestion des boues de vidange