We will accelerate the development of urban environmental infrastructure

(5) Gradually improve the classification and treatment capacity of domestic waste. Construction of classified delivery, classified collection, classified transportation, classified treatment of domestic waste treatment system. Reasonable layout of household garbage classification and collection sites, improve the classification and transportation system, and speed up the completion of classification, collection and transportation facilities. Urban built-up areas where the daily volume of domestic waste exceeds 300 tons will accelerate the construction of waste incineration treatment facilities. Areas that do not have the conditions to build large-scale waste incineration treatment facilities are encouraged to build through cross-regional co-construction and sharing. In accordance with the principles of scientific assessment and moderate advance, the construction of kitchen waste treatment facilities will be steadily and orderly promoted. We will strengthen the construction of facilities for recycling, sorting and disposal of recyclables, and improve the level of recycling and resource utilization of recyclables.

6. Continue to promote the construction of solid waste disposal facilities. Promote the construction of industrial solid waste disposal and comprehensive utilization facilities in industrial parks, and improve the capacity of disposal and comprehensive utilization. Strengthen the fine classification and resource utilization of construction waste, improve the quality of construction waste recycling products, expand the scope of use, and standardize the collection, storage, transportation, utilization and disposal of construction waste. We will improve regional recycling and utilization systems for renewable resources, and promote the classification, utilization and centralized disposal of waste such as scrap steel, scrap non-ferrous metals, scrap motor vehicles, retired photovoltaic modules and wind turbine blades, waste household appliances, waste batteries, waste tires, waste wood products, waste textiles, waste plastics, waste paper, and waste glass. We will carry out 100 demonstrations on the comprehensive utilization of bulk solid waste.

(7) Strengthening and improving the disposal capacity of hazardous waste and medical waste. Comprehensively understand the production volume, regional distribution and utilization and disposal capacity of various types of hazardous waste, and scientifically layout and build centralized hazardous waste disposal facilities that match the overall production and waste situation. Strengthen the disposal capacity of special types of hazardous waste, and build a number of regional centralized disposal bases with strong disposal capacity and high technical level for hazardous waste requiring special disposal and possessing regional distribution characteristics in accordance with the principle of national overall planning and relative concentration, focusing on major industrial bases according to local conditions. China has set up six national and regional hazardous waste risk prevention and control technology centers and 20 regional special hazardous waste centralized disposal centers. Actively promote the construction of emergency treatment capacity of medical waste in cities at the prefecture level and above, improve the county-level medical waste collection, transport and disposal system, and promote the upgrading of existing centralized treatment facilities for medical waste.

Third, focus on building integrated urban environmental infrastructure

(8) Promoting overall planning for environmental infrastructure systems. Emphasize planning first, in accordance with the principles of green, low-carbon, intensive and efficient, circular development, overall planning and layout of urban environmental infrastructure, according to urban infrastructure construction planning, ecological environmental protection planning, do a good job of environmental infrastructure site selection. Encourage the construction of sewage, garbage, solid waste, hazardous waste, medical waste treatment and disposal and resource utilization of "multi-in-one" comprehensive disposal bases, promote the construction of vein industrial parks, promote the construction of renewable resources processing and utilization bases (parks), and strengthen the industrial recycling links of bases (parks). Promote the sharing of various treatment facilities, process and equipment, resource and energy sharing, environmental pollution co-management, and liability and risk sharing, so as to achieve rational use of resources, effective disposal of pollutants, and prevention and control of environmental risks. We will continue to promote the coordinated treatment of domestic waste and sewage at the county level, and support the extension of conditional local garbage and sewage treatment facilities and services to rural areas.

9. Strengthen coordination and efficient connectivity of facilities. Give full play to the collaborative disposal function of environmental infrastructure, break the barriers of cross-field collaborative disposal mechanism, and focus on promoting the effective connection between municipal sludge disposal and waste incineration, leachate and sewage treatment, comprehensive utilization of incineration slag and solid waste, incineration fly ash and hazardous waste disposal, and hazardous waste and medical waste disposal, so as to improve the collaborative disposal effect. Promote the incineration of municipal sludge, biogas residue, concentrated liquid and other waste in domestic waste incineration facilities, and realize the sharing and sharing of incineration treatment capacity. For areas or facilities that have the conditions for receiving leachate discharge, it is explored to carry out the receiving leachate discharge under the premise that the leachate meets the environmental protection and receiving standards after pretreatment. We will build desalination projects in coastal areas lacking water and promote the comprehensive utilization of concentrated salt water.