Daily waste simply breeds a large number of bacteria and sends out odor. Relevant laws and regulations and local policies in China are continuously promoted. The cities with 100% treatment rate are mainly Shanghai, Zhejiang, Shandong, Jiangsu and Hainan. Beijing, Anhui, Hebei and Guangxi, the following is the summary and analysis of the current situation of the daily waste treatment profession.
In December 2016, Xi Jinping chaired a meeting of the central financial and economic leadership group to discuss the general implementation of waste classification guidelines. According to the analysis of daily waste treatment profession, the conference is important to accelerate the establishment of waste treatment system of classified investment, classified collection, classified transportation and classified treatment, and form waste classification criteria based on the rule of law, promoted by the government, participated by the whole people, coordinated urban and rural areas, and adapted to local conditions, so as to improve the coverage of waste classification criteria.
In April 2018, Shanghai released the action plan for the construction of the whole process classification system of daily waste in Shanghai (2018-2020). The summary and current situation of the daily waste treatment profession pointed out that the action plan is the detailed implementation of the implementation plan. According to the three-year action plan, by 2020, all districts in Shanghai should realize the full coverage of daily waste classification, and more than 90% of residential areas should reach the standard of waste classification practice effect.
In November 2019, following the comprehensive implementation of waste classification in Shanghai, Shenzhen officially implemented the "measures for encouragement of daily waste classification in Shenzhen", marking the comprehensive opening of waste classification in Shenzhen. In addition to Shanghai and Shenzhen, many cities such as Wuhan, Chengdu and Zhengzhou have started to classify wastes. With the in-depth development of waste classification in all parts of the country, the comprehensive harmless process of daily waste treatment in China is accelerating.
According to the data of the National Bureau of statistics, in 2019, the harmless treatment capacity of urban daily waste in China is 2.228 billion tons. Meanwhile, the treatment capacity of sanitary landfill is 1275 million tons, accounting for 57.23%; the treatment capacity of combustion is 897 million tons, accounting for 40.26%; the treatment capacity of other treatment methods is 56 million tons, accounting for 2.51%.
From the perspective of technical road, the main methods of harmless treatment of urban daily waste in China are sanitary landfill, waste composting and waste combustion. In the meantime, sanitary landfill is the primary treatment method of waste at present, but it has some defects, such as occupying land resources, high cost of leachate treatment, high risk of leakage and so on.
From the point of view of treatment methods, there are three kinds of harmless treatment methods of daily waste in China: sanitary landfill, combustion and others. According to the summary and current situation of daily waste treatment profession, in 2019, the national urban daily waste harmless treatment capacity is 196738000 tons, among which the sanitary landfill capacity is 118.043 million tons, accounting for 60%; the combustion capacity is 68.858 million tons, accounting for 35%; the other harmless treatment capacity only accounts for 5%.
From the statistical data point of view, China's daily waste clearance and transportation volume is lower than the national daily waste production, and some days of waste can not be treated in time. And waste classification is the most effective way of waste reduction, recycling and harmless treatment.
At present, the harmless treatment capacity of daily waste combustion treatment equipment in China is 2.981 billion tons / day, accounting for 43.84% of the total treatment capacity. According to the analysis of the author, the proportion of harmless treatment methods of combustion waste is increasing year by year. With the deepening of the national waste classification policy, the combustion treatment method is more satisfied with the reduction and harmless development needs of urban daily waste treatment, and the combustion treatment method will become the mainstream form of professional development.
Looking forward to 2020, according to the 13th five year plan for the construction of national urban daily waste harmless treatment equipment, the target in 2020 is 54%. The newly increased combustion capacity continued to be concentrated in the eastern coastal areas and the average scale of the project was relatively large, and then gradually moved to the Midwest and the second and third tier cities, but the average scale of the project decreased. In terms of business form, waste combustion has been extended from traditional BOT to dbo, O & M, EPC, etc. in the future, it will gradually be carried out in the form of PPP, and transferred to comprehensive environmental services. The above is the summary of daily waste treatment profession and analysis of current situation.
