Recyclables will be handed over to recyclables utilization enterprises for resource utilization; hazardous waste is disposed of in a harmless manner by high temperature treatment, chemical decomposition, etc.; wet garbage is disposed of in a resourceful or harmless manner by biochemical treatment, methane production, composting, etc.; and dry garbage is disposed of in a harmless manner by incineration.
Nationally, landfills are still one of the main means of disposing of municipal waste, but in large cities like Shanghai, landfills are being phased out as a relatively backward means of waste disposal.
Waste incineration, as an effective alternative to landfill, has the characteristics of occupying less land, obvious reduction effect and waste heat can be utilized, etc. It is widely used in developed countries and regions, and is being gradually implemented in our country. 2016, the Ministry of Housing and Construction had jointly issued the Opinions on Further Strengthening the Treatment of Municipal Domestic Waste Incineration with four ministries and commissions, which put forward that, by 2020, the national capacity of municipal waste incineration treatment will be account for more than 50 percent of the total treatment capacity.
Waste treatment capacity will be gradually increased
While the current disposal rate of municipal waste is almost close to 100%, there is still a very big gap between our country and developed countries in terms of waste classification and treatment, and recycling of resources.
China is still lagging behind in waste classification and treatment, especially in the treatment of food waste. With the gradual promotion of waste classification, China will also accelerate the construction of wet waste treatment facilities construction, is expected in the next few years, biological treatment facilities will become China's waste treatment of the entire technological landscape can not be ignored component.
If dry and wet garbage are not separated, the garbage will be incinerated because the water content is too high, resulting in insufficient combustion, which is likely to produce more toxic and harmful substances to pollute the environment. Therefore, both landfill reduction and standardization of incineration require front-end classification of waste.