Globally, approximately 1.8 billion individuals are reliant on faecal sludge management (FSM) for their on-site sanitation needs, however a great percentage of the faecal sludge (FS) is not adequately treated before disposal or reuse thus posing a great risk to the health of the environment and the public. For countries in the global south such as Kenya, most individuals are dependent on on-site sanitation systems, but FSM do not operate at optimal levels due to breakdowns and also are limited in capacity to meet the populations demand.
Through exploratory field work and secondary data collection and review, the faecal sludge management options in Kenya have been identified along the sanitation value chain. Treatment of the faecal sludge is limited due to inadequacy of the technologies and treatment plants. Moreover, manual emptiers and truck transporters of the faecal sludge deposit the faecal sludge in open water bodies and rivers without treatment. This unsafe disposal of faecal sludge due to lack of treatment services poses health and environmental hazards that may limit the improvements in drinking water supply and health services thus having a negative effect to the environment and public health.
The treatment end products of faecal sludge for resource recovery in Kenya was identified as animal feed, Soil conditioners, biogas generation for cooking , heating and lighting; and briquettes to replace charcoal and fuelwood. Most businesses involved in the faecal sludge reuse are private public enterprises such as Umande Trust, Sanivation, Makaa-dot-com and private enterprise such as Sanergy. Reuse of the faecal sludge is limited due to the perception of the consumers which perceive that they have bad odour and thus laxity in their usage. Also, the cultural perspective of different communities in Kenya limit the reuse of the faecal waste.
It is also important to consider the agricultural waste since most faecal waste reuse options are mixed together with agricultural waste such as saw dusts to increase the calorific value of the briquettes.