(Reporter Chen Peihua, Jiang Fan correspondent Wu Yizhi, Wang Hui) In the early morning, Ni Fengying came to the riverside of Hongyang City to wash vegetables, and several river prawn were quickly disappeared. "I didn't expect to see fish and shrimp jump again so soon." Ni Fengying lived in Hongyang Village, Wangjiangyu Town, Xiuzhou District, Jiaxing. Since the pipeline of the water jet loom sewage treatment station passed into the villagers' home last year, the sewage is straight. The phenomenon of the river channel disappeared, and the water quality of the river gradually improved. In recent years, it has reached Class III water for the first time.
Five waters are treated together, and pollution is first. In view of the difficulty in the large amount of rural domestic sewage, complicated management conditions, and weak foundation, Xiuzhou focuses on the treatment of small-scale domestic sewage, dredging, building new sewage pipe networks, and intercepting sewage pipes. At present, 12 small towns with planned domestic sewage, full coverage and full treatment, of which 3 have been completed, 3 are being rebuilt, and 6 small-scale town sewage collection pipe network projects will be started in the near future. Since the beginning of this year, Xiuzhou has built 25.4 kilometers of sewage pipe network and completed an investment of 46.13 million yuan.
Xiuzhou introduced a pipeline robot to make a “colonoscopy†for the sewage pipe network, and conducted a classification survey on the underground sewage pipe network, combined with the inspection report to implement classification and repair, and solved the problems of disconnection, misconnection, stringing, and damage in the sewage pipe network. Through the classification and treatment, in the first half of this year, the collection of domestic sewage in the towns of Wangdian, Xinyi and Wangjiangyu in Xiuzhou District increased by 59%, 119% and 60% respectively.
The reporter saw that a silver pipe robot with a diameter of about 20 cm crawled in the sewage pipe, and the ground staff Zhong Xuchun stared at the monitoring screen. "The robot is eye-catching, and the pipe network is damaged at a glance." Zhong Xuchun said that the robot has checked the pipe network for 506 kilometers, and found 1575 rain and sewage pipes, and 80 water outlets are unknown.
The sewage is clear, and the secret of Xiuzhou is to install a "processor." Recently, the Shuangqiao Town's domestic sewage pipe network project was put into operation. After the domestic sewage was treated by the integrated flat membrane bioreactor process, the effluent water quality reached Grade A standard, and the living environment of 3,000 residents living in the market town was greatly improved.
It is worth mentioning that there are 18 administrative villages in Wangjiangyu Town to rectify domestic sewage, and introduce a variety of high-tech water control modes: Shenjiatun Natural Village adopts buried micro-dynamic treatment mode, Jinyuqiao Natural Village introduces membrane bioreactor technology, Yang Jiayu Natural Village uses German artificial wetland technology...
In Xiuzhou, the scene of the winding around the village was back. In the first half of this year, Xiuzhou's urban and rural domestic sewage increased by 12,000 tons per day, and rural domestic sewage treatment has started 9382. In the first half of the year, the water quality assessment of the cross-administration section of the district was qualified, and the permanganate and total phosphorus assessments were excellent; the overall water quality of the exit section was Class IV, which was improved by 2 water quality categories compared with the worse V category in the same period last year.
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