Sewage treatment is an important guarantee for a city to improve people's livelihood and create a beautiful living environment. Hequ County Sewage Treatment Plant promotes the upgrading and transformation of sewage treatment through process improvement and new technology utilization, strengthens source treatment, protects the water environment, controls water pollution, makes the city more beautiful and the water clearer, and shows Hequ as a solid advocate for the improvement of the ecological environment in the Yellow River Basin.
Recently, the reporter walked into the Chengnan Sewage Treatment Plant in Hequ County and saw that all the equipment here was running non-stop. In the laboratory, the staff is testing various indicators of the water samples to monitor whether the water quality is up to standard. Duan Xiaoping, a laboratory technician, said: "The water quality test data is the most important indicator of whether the sewage meets the standard after treatment, and we will take samples and test the water quality every day to ensure that the main indicators meet the national and local standards." ”
In addition to manual testing, the sewage treatment plant has installed 4 sets of online automatic monitoring equipment and inlet and outlet water flowmeters in the effluent station room, and is connected to the provincial, municipal and county environmental protection monitoring platforms to conduct uninterrupted testing 24 hours a day. Miao Yongqing, an operating worker, told reporters: "We are now producing all the equipment at full capacity, with a daily sewage intake of 8,000 tons and a treatment rate of 100%. The treated water is also subject to 24-hour uninterrupted sampling and monitoring procedures of the "export online plant" to ensure that the water quality is discharged up to standard. ”
Located in Nanyuan Village, Xikou Town, Hequ County Chengnan Sewage Treatment Plant covers an area of 30,000 square meters and is the only sewage treatment plant in the county, which undertakes the domestic sewage treatment of nearly 90,000 people in 15 square kilometers of the county, and is of great significance to the sustainable development of urban ecological environmental protection and the ecological environmental protection of the Yellow River. The sewage treatment plant selects the advanced technology of Baileke biological sewage treatment (A2O) and high-efficiency chemical sedimentation tank + V-type filter process, the main facilities are inlet wells, coarse grids, fine grids, swirl sedimentation tanks, comprehensive biochemical tanks, sedimentation tanks, high-efficiency chemical sedimentation tanks, V-shaped filters, disinfection and sludge dewatering workshops, etc., the sewage treatment scale is 10,000 tons/day, and the black domestic sewage gradually becomes clear and transparent after the water purification process of each treatment section.
In the vast area of the sewage treatment plant, it is rare to see workers coming and going. Ma Bin, the person in charge, told reporters that now most of the sewage treatment plant has been automated, and there are only a dozen employees in the entire plant, responsible for machine operation, maintenance, monitoring, etc., and the overall operation is very efficient. Ma Bin, deputy general manager of Hequ County Sewage Treatment Plant, introduced: "From January to June this year, the amount of sewage treated was 1.3 million tons, of which 600,000 tons of reclaimed water was reused by Guoneng Shanxi Hequ Power Generation Co., Ltd., which was used to supplement the cooling water of the power plant, rationally use water resources, and realize the recycling of reclaimed water. The amount of sludge generated is 1,300 tons, and all the sludge is transported to the garbage treatment plant for harmless landfill, and there is a triple list of solid waste transfer. The effluent index has reached the local standard of Shanxi Province, the three indicators of COD, ammonia nitrogen and total phosphorus have reached the surface water class V, and the rest of the indicators have reached the first-class A standard.
Hequ County is located in the Yellow River Basin, the Yellow River flows through the territory of 76 kilometers, more than 100,000 people live along the Yellow River, give full play to the role of sewage treatment plants, take source treatment as the starting point, realize the harmless treatment of sludge, reclaimed water recycling, and effectively build a green ecological barrier, make every effort to promote the continuous improvement of the water environment, and resolutely adhere to the bottom line of the ecological environment and safety of the Yellow River Basin.
(Zhang Liang reported on Wednesday)
Shanxi Pictorial Xinzhou Reporter Station