Views: 15 Author: Site Editor Publish Time: 2021-07-06 Origin: Site
Garbage classification generally refers to a series of activities in which garbage is classified, stored, put, and transported according to certain regulations or standards, and thus transformed into public resources. The purpose of classification is to improve the resource value and economic value of garbage, strive to make the best use of the material, reduce the amount of garbage treatment and the use of treatment equipment, reduce treatment costs, and reduce the consumption of land resources. In short, garbage classification has social, economic, and ecological benefits.
Household garbage disposal belongs to the private goods of the public in the classified storage stage. Garbage classified by the public becomes a regional public resource of the community or community where the public is located. Garbage classified and transported to garbage collection points or transfer stations becomes a non-exclusive public resource. From the perspective of the domestic and foreign cities' classification of domestic refuse disposal methods, most of them are classified according to the composition and quantity of garbage, combined with the resource utilization and disposal methods of local garbage.
There are several types of garbage.
Recyclables mainly include five categories: waste paper, plastic, glass, metal and cloth.
Waste paper mainly includes newspapers, periodicals, books, various packaging papers, etc. However, you should be aware that paper towels and toilet paper cannot be recycled due to their water solubility.
Plastics mainly include various plastic bags, plastic foams, plastic packaging, disposable plastic lunch boxes and tableware, hard plastics, plastic toothbrushes, plastic cups, mineral water bottles, etc.
Glass mainly includes various glass bottles, broken glass pieces, thermos bottles, etc.
Metal objects mainly include cans, cans, etc.
The fabrics mainly include discarded clothes, tablecloths, face towels, school bags, shoes, etc.
These garbage can be processed and recycled with a green waste processor to reduce pollution and save resources. For example, every ton of waste paper recycled can produce 850 kg of paper, save 300 kg of wood, and reduce pollution by 74% compared to equivalent production. 0.7 tons of secondary raw materials can be obtained for every ton of plastic beverage bottles recovered. Recycling 1 ton of scrap steel can produce 0.9 tons of good steel, saving 47% of the cost compared with ore smelting, reducing air pollution by 75%, and reducing water pollution and solid waste by 97%.
Other garbage includes bricks, ceramics, muck, waste toilet paper, paper towels and other wastes that are difficult to recycle, dust, and food bags (boxes) other than the above-mentioned types of garbage. For this kind of garbage, it is best to adopt sanitary landfill to effectively reduce the pollution of groundwater, surface water, soil and air.
Food waste includes leftovers, bones, vegetable roots and leaves, and peels. After the biotechnology is used to process the compost on site, 0.6 to 0.7 tons of organic fertilizer can be produced per ton. In fact, for kitchen waste, there are several sharp tools, including kitchen food crusher, sink waste disposer and kitchen garbage shredder.
Hazardous garbage contains heavy metals that are harmful to human health, toxic substances, or waste that causes actual or potential harm to the environment. Hazardous garbage includes batteries, fluorescent tubes, light bulbs, mercury thermometers, paint buckets, some household appliances, expired medicines and their containers, expired cosmetics, etc. These wastes are generally recycled separately or landfilled.
