Garbage classification handwritten newspaper: Benefits of domestic waste classification

Garbage classification is to divide garbage into different categories according to its different recycling value and the degree of pollution to the environment, which is conducive to the recycling and processing of garbage. There are three categories of garbage, namely hazardous garbage, non-recyclable garbage and recyclable garbage. Hazardous waste includes: waste batteries, waste fluorescent tubes, mercury thermometers, waste paint, expired medicines, etc.; non-recyclable waste refers to waste that is easily decomposed under natural conditions, including: peels, vegetable peels, leftovers, etc.; recyclable waste Including waste paper, waste plastic, waste metal, waste glass, waste fabric, etc. Among them, waste paper includes: newspapers, various packaging papers, office paper, advertising paper, large and small cartons, etc.; waste plastic includes: various plastics Bags, plastic bottles, plastic packaging, foam plastics, disposable plastic lunch boxes and tableware, hard plastics, etc.; scrap metal includes: cans, tin cans, lead toothpaste skins, etc. These different types of garbage cannot be thrown away casually. They have fixed "homes". Hazardous garbage: red bucket; non-recyclable garbage: yellow bucket; recyclable garbage: blue bucket.

Garbage classification can turn more garbage into resources and fully reuse it, which is of great help to the environment.

1. Save resources; do not waste; make the city more beautiful. 1. Reduce land occupation: Some substances in domestic waste are not easily degraded, causing serious erosion of the land. Garbage classification, removing recyclable and non-degradable materials, reducing the amount of garbage by more than 50%.

2. Reduce environmental pollution: Abandoned batteries contain toxic substances such as metallic mercury and cadmium, which can cause serious harm to humans; waste plastics in the soil can lead to reduced crop yields; discarded waste plastics are destroyed by animals Accidents resulting in the death of animals due to accidental ingestion often occur. Recycling therefore reduces harm. ?

3. Turn waste into treasure: China uses 4 billion plastic fast food boxes and 5.7 billion instant noodle bowls every year. Waste plastic accounts for 4.7% of domestic waste. One ton of waste plastic can be recycled into 600 kilograms of diesel. Recycling 1,500 tons of waste paper can avoid cutting down the trees used to produce 1,200 tons of paper. One ton of cans can be melted to form one ton of good aluminum blocks, which can save 20 tons of aluminum ore. 30% to 40% of production waste can be recycled, and this small but profitable resource should be cherished. You can also use cans to make pencil boxes, which is environmentally friendly and saves resources.

The fully enclosed, mechanized and automated garbage sorting system at the core of the municipal solid waste LJ five comprehensive treatment technology developed by Mr. Yang Jiming, chairman and technical inventor of Shanghai Jiming Environmental Protection Equipment Co., Ltd., complies with The development of circular economy is harmless, rapid, industrialized and without surplus.

Garbage sorting has always been the bottleneck of garbage treatment technology. Whether it is incineration, landfill treatment technology, or comprehensive treatment technology, many failure cases are due to incomplete garbage sorting, resulting in the inability to process the next process. The entire production line cannot operate normally. Municipal domestic waste? LJ? Five-in-one treatment technology - garbage sorting system, is the core of this technology. This system uses uniform garbage feeding, automatic oversized garbage sorting system, oversized garbage crushing system, and automatic crushing of bagged garbage. After processing by bags, automatic crushing system for large pieces of organic matter, fully enclosed mechanized air separation system, plastic water separation system, high-temperature and high-pressure hydrolysis of organic matter, water thermal oxidation and thermal separation system, municipal solid waste can be sorted into: 1: Inorganic Object categories; 2: Sand and soil; 3: Organic substances; 4: Non-recyclable combustible substances (if supplemented by simple manual sorting, hard plastics, rubber, etc. can also be separated); 5: Film plastics; 6: Ferromagnetic materials;

The purity of the above garbage can reach more than 85%, and the purity of film plastic can reach more than 90%, laying a foundation for the resource utilization and industrialization of the next process of garbage treatment. a solid foundation.