1, which provides the possibility for the scientific treatment of domestic waste.
After biochemical treatment, kitchen waste is composted to produce organic fertilizer, and anaerobic fermentation to produce biogas, which can also be used to refine protein or petroleum fuel. The kitchen waste with high moisture content is separated, which improves the incineration calorific value of other wastes.
2. It is beneficial to effectively control secondary pollution.
The calorific value of other garbage is increased, and the control difficulty of secondary pollution caused by garbage incineration is reduced. Classifying harmful waste reduced the contents of heavy metals, organic pollutants and pathogenic bacteria in garbage.
It is beneficial to the harmless treatment of garbage and reduces the risk of water, soil and air pollution in garbage treatment. Improve the proportion of waste recycling, reduce the demand for raw materials and reduce carbon dioxide emissions.
3. It is conducive to saving storage resources: different kinds of garbage are diverted, which greatly reduces the amount of garbage that eventually enters the sanitary landfill and prolongs the service life of the landfill.
4. Conducive to improving citizens' quality: popularize knowledge of environmental protection and garbage, enhance the whole society's understanding of sanitation industry, respect the labor of sanitation workers and care about their welfare.
Turning waste into treasure: China uses 3 billion plastic fast food boxes and 5.6 billion instant noodle bowls every year, and waste plastic accounts for 3.7% of domestic garbage. 1 ton of waste plastics can recover 600kg of unleaded gasoline and diesel oil.
How to write the poster of garbage sorting? Tools/raw materials
Pen and paper
1. Draw four trash cans with the same style from left to right, and write different garbage classification words on the buckets.
2. Then draw the ground wire, draw the bottom and decorate it with leaves.
After drawing grass on the ground, draw buildings and trees, and then draw grass and clouds.
4. Color the four trash cans green, blue and red, and then color the flowers and the ground at the bottom green.
5. Color the houses and trees, the grass is purple and blue, CCTV, and the sky background is blue.
6. Garbage sorting posters will be drawn.