Requesting documentation: How many types of garbage are there? What's in each category?

Garbage classification knowledge

Domestic waste can generally be divided into four major categories: recyclable waste, kitchen waste, hazardous waste and other waste. Currently commonly used garbage disposal methods include comprehensive utilization, sanitary landfill, incineration and composting.

Recyclable garbage mainly includes five categories: waste paper, plastic, glass, metal and cloth. Waste paper: mainly includes newspapers, periodicals, books, various packaging papers, office paper, advertising paper, cartons, etc. However, it should be noted that paper towels and toilet paper cannot be recycled because they are too water-soluble. Plastic: mainly includes various plastic bags, plastic packaging, disposable plastic lunch boxes and tableware, toothbrushes, cups, mineral water bottles, etc. Glass: mainly includes various glass bottles, broken glass pieces, mirrors, light bulbs, thermos bottles, etc. Metal objects: mainly include cans, cans, toothpaste wrappers, etc. Fabrics: mainly include discarded clothes, tablecloths, face towels, school bags, shoes, etc. For example, every ton of waste paper recycled can make 850 kilograms of good paper, save 300 kilograms of wood, and reduce pollution by 74% compared with the same amount of production; every ton of plastic beverage bottles recycled can obtain 0.7 tons of secondary raw materials; every ton of waste paper recycled Steel can make 0.9 tons of steel, which saves 47% of the cost compared with ore smelting. It also reduces harmful waste including waste batteries, waste fluorescent tubes, waste mercury thermometers, expired medicines, etc. These wastes require special safe treatment.

Other waste includes bricks, ceramics, slag, toilet paper and other waste that are difficult to recycle in addition to the above categories of waste. Sanitary landfill can effectively reduce the impact on groundwater, surface water, soil and Air pollution.

Garbage is misplaced wealth. Recycling garbage not only beautifies the environment, but reusing garbage can save the mining of new resources, thereby fundamentally reducing garbage. Participating in environmental protection can be done with just a little effort. Let’s start with the little things around us and start by disposing of garbage correctly.

75% reduction in air pollution and 97% reduction in water pollution and solid waste.

Kitchen waste includes food waste such as leftovers, bones, roots and leaves. It can be composted on-site through biotechnology and can produce 0.3 tons of organic fertilizer per ton.