In the process of urbanization, garbage as a product of urban metabolism was once a burden of urban development, and many cities in the world have experienced the situation of garbage siege. Nowadays, garbage is considered to be the most inexhaustible “urban mineral deposit” and the “misplaced resource”. This is both an in-depth and mythical understanding of garbage, and an inevitable requirement for urban development.
Significance of municipal solid waste recycling
1. Recycling, turning waste into treasure:
After the garbage is recycled by someone, newspapers are sent to paper mills for the production of recycled paper; beverage containers are sent to relevant factories to become renewable resources; waste electrical appliances are sent to specialized companies for decomposition and treatment; combustible garbage can be used as fertilizer after burning; Non-combustible garbage can be used as raw materials for reclamation and land treatment after being compressed and non-toxicized;
2. Recycling, energy saving and environmental protection:
China uses 4 billion plastic snack boxes, 500-700 million instant noodle bowls, and billions of disposable chopsticks each year, accounting for 8-15% of domestic waste. One ton of waste plastic can be recycled into 600 kg of diesel. Recycling 1,500 tons of waste paper can avoid the need to cut down forest trees used to produce 1200 tons of paper. A ton of cans can form a ton of good aluminum blocks after melting, and 20 tons of aluminum ore can be mined. 30-40% of the domestic waste can be recycled, so this small and profitable resource should be cherished.
Waste sorting and recycling is an important part of pre-disposal of waste. Through classified distribution and classified collection, the useful materials are separated from the garbage, recycled, reused, and turned waste into treasure. Not only improve the utilization level of garbage resources, but also reduce the amount of garbage disposal. It is an important way and means to achieve garbage reduction and resource utilization.