Domestic garbage can generally be divided into four categories: recyclable
garbage, kitchen waste, hazardous waste and other garbage. At present, the
commonly used garbage disposal methods mainly include comprehensive utilization
used waste sorting equipment, sanitary landfill, incineration and
Recyclable garbage: waste paper, plastic, glass, metal and cloth. Waste paper
mainly includes newspapers, periodicals, books, various wrapping papers, office
papers, advertising papers, cartons, etc. It is worth noting that paper towels
and toilet paper are too strong to be recycled due to water solubility.
Recyclable garbage includes paper, metal, plastic, glass, etc., through
comprehensive treatment and recycling, can reduce pollution and save resources.
For example, if you recycle 1 ton of waste paper, you can make 850 kilograms of
paper, save 300 kilograms of wood, and reduce pollution by 74% compared with the
same amount of production; 0.7 tons of secondary raw materials, waste sorting
plant can be obtained for every 1 ton of plastic beverage bottles recovered;
Steel can refine 0.9 tons of steel, saving 47% more than using ore smelting,
reducing air pollution by 75%, and reducing water pollution and solid waste by
Kitchen waste includes leftovers, bones, vegetable roots and other food
wastes. The biotech can be used to treat compost in situ, producing 0.3 tons of
organic fertilizer per ton.
Hazardous waste includes waste batteries, waste fluorescent tubes, waste
water silver thermometers, expired medicines, etc., which require special safety
Other garbage includes hard-to-recycle waste such as brick and ceramics,
muck, toilet paper and other wastes other than the above-mentioned types of
garbage. Sanitary landfill can effectively reduce pollution to groundwater,
surface water, soil and air.