Two investigations currently underway, are presented in the following each dealing with biowaste collection in dense residential areas.
During a project sponsored by the Federal German Foundation of Environment investigations are carried out regarding the determination of effective and realisable measures for the minimisation of impurities and the increase of the collection quota of biowastes especially in densely populated areas. Social measures such as consultancy and waste management advices (e.g. use of degradable bags for biowaste collection, changes of locations of collection bins) are tested. The effects of waste container lockers are momentarily investigated by the Laboratory for Waste Management, Waste Water Management and Environmental Chemistry of the University of Applied Sciences, Münster, Germany, in a project sponsored by the BMBF together with the municipality of Münster. These waste container lockers are lately used in a wider range, thus creating a household related tariff invoice and therewith creating an incentive for separate collection of wastes in densely populated areas similar to areas with one- and two-family houses.