Chongqing has a “waste free” approach

2022-06-10 0 By

Centralized and harmless treatment of medical waste, agricultural film recycling outlets, and renewable resource recycling system cover all towns and communities. Zero landfill of native domestic waste and 100% utilization rate of kitchen waste in central urban areas of major cities and metropolitan areas.As the only a provincial pilot “no waste city” construction, chongqing will be “no waste city” construction as promote ecological civilization construction level, the green development of the Yangtze river economic zone and promote the construction of chengdu-chongqing region shuangcheng economic circle of the important measures, set up an interdisciplinary, cross-sectoral, cross-regional, solid waste management system,A number of innovative achievements with Chongqing characteristics and leading the country have been formed, and a new path of ecological priority and green development has been blazed.In the dismantling workshop of Zhongtian Electronic Waste Treatment Co., LTD., located in Dazu District, Chongqing, a set of waste electrical appliances in the production line after more than 10 processes, disassembled and sorted out circuit boards, power lines and other electronic products.”The company specializes in recycling, dismantling and recycling waste electronic products.”Chen Dong, director of the environmental protection department of Zhongtian Electronics co., LTD., said the company generates about 5,000 tons of hazardous waste every year, some of which need to be transported to Sichuan and Yunnan provinces for disposal.In 2020, Chongqing municipality and Sichuan Province will take the lead in establishing a cooperation mechanism for trans-provincial transfer of hazardous waste.Both parties shall, based on their respective hazardous waste utilization and disposal capabilities and the situation of generation and transfer, periodically negotiate to determine the operating unit and the categories and quantities that can be accepted.Those in the “white list” no longer need to be approved by the prefecture-level ecological and environmental departments, but by the two provincial ecological and environmental departments directly, and the reply can be received within 5 working days.After entering the “white list”, Zhongtian Electronics not only felt the convenience of approval, but also reduced the pressure of solid waste inventory.”Now, the solid waste generated can almost reach the zhou Qing dynasty or even the Daily Qing Dynasty.In 2021, the company recycled more than 1.5 million waste electrical and electronic products, and transferred and disposed of more than 700 tons of hazardous waste across the province.”Chen Dong said.According to Lu Junqiang, director of the solid waste and chemicals department of chongqing’s Ecology and Environment Bureau, the “white list” system has been extended to Guizhou and Yunnan provinces in accordance with the principle of “nearby transfer and controllable risks”.In 2021, Chongqing will continue to deepen the “white list” mechanism of trans-provincial transfer of hazardous waste and the joint prevention and control mechanism of hazardous waste with neighboring provinces and cities such as Yunnan, Guizhou and Sichuan, and actively serve enterprises producing and using hazardous waste.Up to now, chongqing, Sichuan, Guizhou and Yunnan have included eight categories and 51 enterprises in the “white list” of hazardous waste, up 166.7% and 240% respectively compared with 2020.According to the latest data, in 2021, According to the “white list” cooperation mechanism, Chongqing, Sichuan, Yunnan and Guizhou examined and approved 167 cases of trans-provincial transfer of hazardous waste, with an amount of 72,000 tons.It is worth mentioning that Chongqing and Sichuan signed a joint construction agreement on “no waste city” in chengdu-Chongqing Economic Circle to promote resource sharing, mutual recognition of qualifications, regional linkage, emergency response coordination, law enforcement coordination, information exchange and personnel exchange.Chongqing has also established a comprehensive collection model of small and micro sources of hazardous waste, and built comprehensive collection and storage facilities for hazardous waste in 34 districts and counties, covering more than 6,000 small and micro enterprises and social source enterprises, effectively alleviating the difficulties in collecting, storing and transferring small and micro sources of hazardous waste.Chongqing uses it to improve its ability of smart supervision.Chongqing has built a big data platform for the prevention and control of solid waste pollution, and established three lists of hazardous waste producing units, self-use and disposal facilities and key supervision units, covering more than 7,300 enterprises.Through this platform, the generation, collection, storage, transportation, utilization and disposal of hazardous waste can be traced back.Technological innovation to promote garbage disposal on the morning of February 20, reporters in chongqing Yubei District los moraine eat hutch waste plant see, alongside a truck full of kitchen waste have entered discharge, the kitchen waste after screening, organic material, such as peel, residue leftovers are packaged to dry anaerobic tank for anaerobic fermentation.”After more than 10 days of anaerobic fermentation, the organic material in the kitchen waste will be converted into biogas, which can be purified for power generation or compressed natural gas production.”Zhang Zhiwei, head of Luoqi kitchen waste treatment plant, said that the company jointly with Chongqing University and other institutions to develop kitchen waste collection and transportation treatment and resource of key technology set broke the foreign technology monopoly, in the country took the lead in the joint kitchen waste anaerobic digestion production of new energy, let kitchen waste waste into treasure.Restaurant – kitchen garbage is a difficult problem in garbage classification.In Chongqing, the kitchen waste produced by hotpot restaurants has the characteristics of high moisture content, high oil content and high salt content, and it is difficult to reduce the treatment and resource utilization.In recent years, Chongqing has attached great importance to the management of restaurant -kitchen-waste. It has specially established a joint conference system for the collection, transportation and treatment of restaurant -kitchen-waste and regularly carried out special joint law enforcement actions, providing a strong policy and mechanism guarantee for the standardized management of restaurant -kitchen-waste.Through collaborative scientific research, Chongqing took the lead in solving the technical problems of kitchen waste disposal in China, and realized the harmless treatment and resource utilization of kitchen waste.Since it was put into use at the end of 2020, Luo Qi restaurant kitchen waste Treatment Plant has been responsible for the disposal of all kitchen waste in the central urban area of Chongqing’s main city and can recycle 1.33 million tons of kitchen waste every year.At present, Chongqing has built 11 restaurant kitchen waste treatment plants, and built a restaurant kitchen waste collection, transportation and treatment system covering urban and rural areas. The restaurant kitchen waste in the central urban areas of the main city and metropolitan areas can be collected as much as possible, and the resource utilization rate reaches 100%, achieving both economic and environmental benefits.While increasing the resource utilization of kitchen waste, Chongqing has also continuously promoted the construction of a technological innovation system for harmless disposal of native domestic waste and urban sewage sludge.Chongqing Sanfeng Environment Group Co., Ltd. is the first company in the industry to realize the localization of the complete set of domestic waste incineration power generation equipment, which has promoted the full incineration and zero landfill of native domestic waste in the central city of Chongqing’s main city and metropolitan area. Its related technologies and equipment have been exported to the United States, India and many other countries.Chongqing is also actively exploring the development of sludge harmless treatment and disposal and resource recycling industry. It has established a multi-technology system of sewage sludge harmless disposal, which is dominated by heat drying and cement kiln co-incineration, and supplemented by construction ceramsite production, garden fertilizer preparation and thermal hydrolysis advanced anaerobic digestion.At present, chongqing has 82 sewage treatment plants and 44 sludge harmless disposal facilities jointly built.Last year, a total of 756,600 tons of urban sewage sludge was disposed of innocuously in the central city, with the innocuity disposal rate of more than 99%.”No waste city cells” more and more “now the lime city vegetable market, the environment is clean and tidy, buy food is also comfortable.Chen Yan liankou, a resident of Jiaofangkou in Chongqing’s Yuzhong district, praised her.Lime Vegetable market located in central Chongqing is the first “no waste vegetable market” in Chongqing.In the past, the market has been criticized by nearby residents for its delayed transfer of kitchen waste, disarray and stink.Now, it has been upgraded to a 100% local resource utilization of fruit and vegetable waste, and has become a new “Internet celebrity punch point” in the city.Chongqing yuzhong district ecological environment bureau deputy director tang Xue reputation, said local through transforming market with original abandoned parking lot, building 5 metric tons of processing capacity of kitchen waste treatment facilities, waste generated five tons of fruit and vegetable market daily on-site into 0.75 tons of soil nutrition, not only effectively reduce the market garbage storage and transport pressure,Annual return can produce organic fertilizer economic benefit of about 50 thousand yuan.In Chongqing, there are many “waste free urban cells” like lime Market.Chongqing Yongchuan District combines the construction work of conservation-oriented organs, civilized construction sites and green factories to create “waste-free organs”, “waste-free construction sites” and “waste-free factories”;Changshou district to build a “scrap free plant”, to create a circular economy of the steel industry, promote the resource utilization of oil-bearing metal scraps;South Bank District, Liangjiang New Area to create “no waste park” “no waste scenic area”, the use of dead leaves to prepare organic fertilizer, the use of waste products to make handicrafts, to achieve the reuse of waste resources……Based on the common scenes of production and life, Chongqing has created an atmosphere of co-construction and sharing, organically combined with green creation activities, highlighted “waste free” elements such as garbage classification, green office, and waste recycling, and developed the evaluation standard of “waste free city cell”.More than 680 waste free city cells in 16 categories, including waste free parks, waste free hospitals, waste free vegetable markets and waste free schools, have been created, covering all areas of clothing, food, housing and transportation, forming a national action system featuring diverse participation and positive interaction, and encouraging the public to form a green lifestyle. The concept of “waste free city” has been widely recognized by the public.At present, Chongqing has launched a new round of “waste free city” construction in wanzhou, Qianjiang, Fuling and other districts and counties outside the central urban area, and the demonstration and leading role of “waste free city” regional construction is further highlighted.(Economic Daily Reporter Wu Lumu) Source: Economic Daily