Water quality standards for water quality in Sihu Lake District, Shandong South China

New Yellow River Reporter: Zhao Lu

In the first quarter of this year, the Office of the Shandong Provincial Ecological Environment Committee issued the "Implementation Plan for Comprehensive Rectification of Agricultural Facial Source Pollution of the South Four Lake Basin" (hereinafter referred to as the "Implementation Plan"). Gao Wei, deputy director of the Sihu Office, introduced the implementation effect of the "Implementation Plan".

Gao Wei said that since the implementation of the "Implementation Plan", the city systems of the South Four Lake Basin have implemented urban and rural facial source pollution control and achieved positive results. The water quality of the south of the south Lake has stabilized the three types of water quality standards for surface water. Water quality standards; the concentration of nitrogen and phosphorus in the basin in the river basin decreased significantly, and the average concentration of ammonia nitrogen and total phosphorus in five national control points in the lake area decreased by 40%and 28%respectively year -on -year. Focus on the following aspects:

Focusing on the rice fields along the lake, focusing on reducing the impact of farmland's pollution pollution. Carry out pilots of agricultural surface source pollution treatment in Yutai County, Jining City, implement surveys and monitoring of agricultural surface source pollution, scientifically evaluate pollution loads, reduce fertilizer pesticide reduction, comprehensive utilization of straw leaving fields, rice fields, and prevention and control of breeding industry pollution, etc. Focus on system treatment. On the basis of the pilot, vigorously promote the "internal circulation" mode of the paddy field withdrawal, through dredging ditch, improving drainage and irrigation facilities, and closed into the drainage gate of rivers and lakes to achieve external closed and internal circulation. At present Model transformation. At the same time, the ecological circulating mode of "rice (ravioli) shrimp co -produced" continues to promote the "rice (cricket) shrimp co -produce". The use of fertilizers and pesticides has decreased by more than 30%and 50%compared with traditional planting. It reaches 135,000 mu.

Adhere to local conditions and open up the "last mile" to open up livestock and poultry manure. Strengthen the construction of pollution control facilities in livestock and poultry farms, and strengthen the operation and maintenance of manure treatment facilities for the equipment and equipment of the feces treatment facilities; if the non -supporting manure treatment facilities and equipment, the classification research and management measures, determine the time limit and specific requirements of the rectification completion and specific requirements Essence Actively promote the use of county as the unit to build public welfare and comprehensive waste resource utilization centers. It is supported by the government's financial support to uniformly implement the comprehensive utilization of livestock and poultry manure, kitchen waste, straw, etc. The internal free -range households are included in unified management, and the resource of livestock and poultry manure is established to ensure that the development of livestock and poultry manure is traceable. Up to now, all the large -scale livestock and poultry farms in the South Four Lake Basin are all equipped with manure treatment facilities.

Adhere to the integration of urban and rural areas, focusing on breaking the governance of urban and rural daily life. In the country, the "two clearance and one bidding" were taken the lead in the country, and it was clearly required that the South Four Lake Basin was the first to complete the entire county (city, district) rainfall flow pipe network clearing in 2023. At the end of this year, 300 kilometers of rain and dirty flow pipe networks and 500 construction communities will be transformed in the basin. The entire county system of 8 counties (cities, districts) along the lake will complete the rain and sewage flow pipeline network. At the same time, the governance of rural sewage and black odor water bodies is strongly promoted, and it is clear that by the end of 2022, the 629 rural black and odorous water bodies in the Southern Four Lake Basin will be basically completed. By the end of 2023, all administrative sewage in administrative villages in the South Four Lake Basin will be basically completed.

Improve the monitoring system and improve the environmental supervision capacity of agricultural facial source. Carry out surveys and monitoring of agricultural pollution sources, and carry out water quality monitoring on the degradation of farmland and large -scale livestock and poultry farm for farmland and large -scale livestock and poultry farms, 300 acres and above. Select the key planting area, and the water quality monitoring period is carried out every year in the paddy field deduction period and the flood season. Strengthen the construction of feces and also use the monitoring system to improve the capacity of manure and cultivated land quality monitoring services. Regularly organize law enforcement inspections, and incorporate the prevention and control of agricultural surface source pollution into the important content of provincial ecological environmental protection inspections, and severely crack down on illegal acts of agricultural surface source pollution.

Pay close attention to the flood season nodes and continue to carry out hidden dangers of urban and rural sources. Explore the full -chain working mechanism of "Investigation of hidden dangers -continuous rectification during the flood season -continuous rectification of the flood season -implementation of the problem supervision -expert fixed -point assistance", so that the flood season is not stopped, the inspection is constantly, and the rectification is more than the rectification. " Before the flood, the Provincial Department of Ecological and Environment arranged and deployed the hidden dangers of rivers and lakes such as the long -term system of rivers and lakes, sewage overflow, rural retreat, and livestock and poultry manure treatment. In the flood season, all relevant departments continued to carry out urban and rural Special inspection operations of facial source pollution, comprehensively clean up the sewage overflow, the underlying mud in the shore embankment, and the livestock and poultry manure and agricultural production waste stacked around the river and lakes. As of now, more than 45,000 points have been investigated, and more than 2,000 problems have been found, and all have been completed. At the same time, the establishment of an expert assistance team to carry out precise assistance in 8 counties (cities, districts), which goes in batches to go to the sources.

Edit: Weekend

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