生物废物

Kitchen and catering waste consists of plant and animal waste from cooking and left-over food (mainly scraps from cooking and uneaten leftovers). The composition of kitchen and catering waste, which is recorded separately, depends on the collection system, consumer behaviour, the geographical location of its source and the season. Therefore, it is not readily comparable. Waste materials from green areas include waste from communal gardens and parks, cemeteries and roadside greeneries. Waste materials from this sector consist of grass, leaves, cuttings from shrubs and trees and waste resulting from the tending of graves, such as wreaths and bouquets. (BMNT, 2015)

Biogenic waste that have been collected separately are recycled in agricultural, communal or commercial composting and biogas plants. Subsequently, the compost is utilised in agriculture or to fertilize public green areas. The biogas that is produced in biogas plants is used to generate energy and heat. The digestate are composted or are used directly in farming. (BAWP 2017)