The sign of food waste is green. Green represents food waste. Food waste can be used as fertilizer for plant nutrients. After being buried in the soil, it can be decomposed and absorbed by natural microorganisms and plants, thus reusing the waste. Mainly include: rice and flour food residues, vegetables, animal and vegetable oils, meat and bones, etc. In terms of chemical composition, they include starch, cellulose, protein, lipids and inorganic salts.

Characteristics of kitchen waste

Food waste contains extremely high moisture and organic matter, which makes it easy to decay and produce stench. After proper treatment and processing, it can be converted into new resources. The high organic content allows it to be used as fertilizer and feed after strict treatment. It can also produce biogas for fuel or power generation. The oil part can be used to prepare biofuels. The illegal collection and recycling of food waste poses a threat to the environment and the health of residents.