Three years of built 46 solid waste disposal projects in Jiaxing and moved towards "non -waste cities"

Zhejiang News Client reporter Wang Hanghui intern Xu Jialing Correspondent Huang Miaomiao

Recently, the heat wave rolled, and the construction of Mitsuhache and Ethylene Tyanol projects in Sanjiang Chemical in Jiaxing Port Area is entering the last 100 -day sprint stage. No one would expect that on the side of the 10 billion yuan investment project, two years ago, there were also sludge produced by over 100 acres of sewage treatment plants covering an area of ​​over 100 acres and a total of over 500,000 tons.

Behind the transformation of 100 billion yuan investment projects, Jiaxing is the epitome of Jiaxing take the second round of central environmental protection inspector feedback issues as an opportunity and resolutely fight the stock sludge to dispose of turning. Sales number.

In the first quarter of this year, after the construction of the "non -waste city" construction work in Zhejiang Province, it was calculated with relevant provincial departments. Jiaxing's "non -waste index" reached 83.07 points, ranking second in the province. July 8th, built in the province

At the new era of beautiful Zhejiang Promotion Conference and Biological Diversity Protection Conference, Jiaxing was awarded the first batch of "non -waste cities" in Zhejiang Province.

With a point with a point and promoting construction, Jiaxing is comprehensively improving the management capacity of solid waste, and the whole region is moving towards "non -waste cities".

In 15 months, Yiping's 120 acres of "sludge mountains"

"There are about 120 acres of this plot. At that time, the sludge was piled up like a hill." Standing on the high slope outside the Sanjiang Chemical Factory area, the comprehensive planning and ecological environmental protection department of the Jiaxing Port District Ecological Environment Branch said, the 50 More than 10,000 tons of sludge was solid garbage produced by Jiaxing Joint Sewage Treatment Plant during operation from 2003 to 2010.

After 2010, although all the sludge generated by the sewage treatment plant was incinerated, due to insufficient sludge disposal capacity in the city, these stocks could only be temporarily stacked. In September 2020, the feedback of the second round of central environmental protection inspectors pointed out that "there is a hidden danger of secondary pollution in sludge stacking." Timely transportation and disposal of sludge deposits have become a "hard bone" facing the Jiaxing Municipal Party Committee and Municipal Government.

"We treat the problem rectification as a political task." Shi Xiaosong, the director of the Jiaxing Ecological and Environment Bureau, recalled that after receiving the feedback of the inspector, Jiaxing immediately established a special class and determined that "local, supplemented by the country" The principle of disposal and coordination of provincial and cities' three -level linkage disposal.

However, disposal is not easy. "It is mainly the risk of large viscosity, many impurities, and a large risk of secondary pollution." Ni Xiaofeng said that a prerequisite for the disposal of sludge incineration is that the water content cannot exceed 40%, but at that time, the moisture content of sludge was generally more than 60%. The sludge must be flattened, dry, and screened in order to enter the final disposal.

When the sludge that has been stacked for many years is cut off by layer, strict prevention of secondary pollution has become the key to successful disposal. For the disposal site, transportation road, transit warehouse environmental safety control and other links, Jiaxing established two lists of "sludge disposal" and "pollution management and control", and more than 30 specific control measures. monitor.

At the end of 2021, with the joint cooperation of nine and 6 disposal units outside the city, more than 500,000 tons of sludge were all disposed of, and Jiaxing completed the issue of rectification and selling the problem one year in advance.

Three years of tackling, built 46 solid waste disposal projects

"You can deal with 5 tons of domestic garbage in one grasp." In the midsummer season, Pinghu's Lingang Energy waste incineration power plant ushered in the peak of production. Enter the grid. The person in charge of the company, Zhong Xiangyang, metaphorized: "Eat" into the garbage and "vomit" out of electricity.

In November 2020, with the investment of Lingang Energy, not only allowed Jiaxing to achieve domestic waste incineration and disposal, but not only the county, and the first land landfill in the province to achieve zero landfills, but also marked the three years of tackling. The construction of the 46 Jiaxing solid waste disposal projects of Yuan was officially ended.

In order to completely solve the problem of the city's sludge solid waste disposal, in 2017, Jiaxing took the lead in launching the three -year operation of the "five waste governance" in the province, and accurately supplemented the gap in solid waste disposal, including sludge, domestic waste, etc. Provide support for comprehensively cleaning up various historical landfills.

As of the end of 2020, Jiaxing has added 5.877 million tons of solid waste disposal capacity and 862,000 tons of landfill capacity, and the disposal capacity is three times that of 2016. In particular, the sludge disposal capacity reaches 2.47 million tons per year, and the sludge disposal is not available, laying the foundation for the completion of the sludge disposal tasks in the Jiaxing Port area in advance.

Jiaxing Innovation and Unified Management Unified Construction of Unified Supervision and Precision, Specialized, and Intelligent Disposal Models have built small and micro -hazardous waste and general industrial solid waste collection systems in the city.

In Jiaxing's solid waste disposal limited liability company, the "He Xiaowei" smart cloud platform shows information about the types of dangerous waste, generating quantities, transfer directions, and transfer quantities of the city's waste -producing enterprises in real time. Up to now, the platform has signed a total of 5103 companies, collecting 18026.87 tons of hazardous waste, and a transfer of 17447.56 tons to achieve full coverage of service areas, full -time and transportation of small and micro enterprises, and full -time disposal.

For a long time, the whole domain is moving towards "non -waste cities"

On the one hand, it is a shocking dangerous waste, and on the other hand, the water quenching vitreous that can be used as a building material. In Zhejiang Huiyuan Environmental Technology Co., Ltd., which is located in Jiaxing Port District, it consists of more than 20 invention patents and more than 200 practical new patents composition The blessing of "fly ash water washing+high temperature melting" technical patent system, the dangerous waste of Flying ash eventually "became a treasure".

Flying ash is a waste produced after incineration of general solid waste waste. It is listed as a hazardous waste because it contains dual evils and heavy metals.The main way for flying ash treatment has always been landfill.The comprehensive utilization of the Huiheyuan project for flying ash means the "last mile" of the construction of "non -waste city".In 2020, Jiaxing released the work plan for the construction of the "non -waste city" in the global "non -waste city", proposing seven major tasks such as strengthening the prevention and control of industrial solid waste pollution, promoting the classification of domestic waste, and the use of resource utilization, and improving the ability to dispose of the end of construction waste.

Building a "non -waste city" starts with the cultivation of "non -waste cells".Last year, Jiaxing expanded to 12 categories with local characteristics on the basis of 7 "non -waste cells" in the province.Waste Boutique Cell Map ".As of the end of 2021, a total of 467 "non -waste cells" were selected.

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