Abstract Provision of sanitation solutions in the world’s urban slums is extremely challenging due to lack of money, space, access and sense of ownership. This paper presents a technology selection method that was used for the selection of appropriate sanitation solutions for urban slums. The method used in this paper takes into account sustainability criteria,...Read More

Abstract WATER SAFETY PLANS (WSPs) are risk management tools designed to assure the safety of drinking water. WSPs have the advantage that they help minimise the risks to water contamination through identification and management of vulnerable points within a water supply system, which could allow microbial hazards to enter. This paper discusses one of the...Read More

Abstract The composting of a faeces/ash mixture and food waste in relative proportions of 1:0, 1:1 and 1:3 was studied in three successive experiments conducted in Kampala, Uganda in 216 L reactors insulated with 75 mm styrofoam or not insulated. The faeces/ash mixture alone exceeded 50°C for
12 days in insulated reactors, but did not reach or...Read More

Abstract The World Health Organisation (WHO) promote the use of water safety plans (WSPs) in the3rd edition of the Guidelines for Drinking-Water Quality (2004). WSPs place an emphasis onrisk assessment coupled with risk management, with simple indicators to monitor processcontrol and periodic verification through audit and microbial indicators. A WSP wasdeveloped for the Kampala piped...Read More

Abstract In a urine diversion dry toilet (UDDT), the urine and faeces are collected separately in order to recycle their nutrient content unmixed. In a UDDT, an additive e.g. lime, wood ash, dry soil or sawdust, depending on which one is easily accessed by the users, is usually sprinkled to the faeces after each defecation. The purpose of...Read More