Many German local authorities have introduced the "Bio Bin" for separate collection of plant waste and food residues.
During the 1990s the quantity of separately collected organic waste increased more than seven fold (nearly 70%) - comparable with the return rate for waste paper or waste glass. This has considerably reduced the quantity of domestic waste. Organic waste is composted or fermented in special plants and processed to obtain fertiliser for horticultural or agricultural use.
Thanks to separate collection of organic waste in a special bin, the pollutant level in compost from organic waste is 95% below the pollutant level in compost obtained from mixed domestic waste.
If the bio bin is used properly, there are no problems with odours or flies/maggots even in summer. Neither are the refuse collection workers exposed to any greater health risks as a result oforganic waste.
In Germany the system has been regulated by the "Bio Waste Ordinance" since 1998.