The proposed food waste kitchen sink disposers from the City of Malmö consists of a pilot project in which kitchen waste disposers have been installed as an easy-to-manage method of dealing with food waste. The waste disposers have proved to be an effective way of dealing with organic household waste in order to produce biogas. In cooperation with the developers, the municipality initially installed waste disposers in the kitchens of 200 homes, within the Housing Fair Bo01 area. The waste disposers are the size of a large thermos and were installed beneath the sink. Separate pipes were routed from the waste disposer, running to a collecting tank below the ground outside the building. The ground food waste falls to the bottom of the tank, while the water runs onward to the wastewater pipes. A sludge suction truck sucks up the collected waste and transports it to the local wastewater treatment plan, where it is digested and produces biogas. The developers themselves had to install and maintain the waste disposers and the pipes that were needed in their buildings.