Shandong issued a document to control the drainage

Limit production, stop production and withdraw within a time limit Shandong issued a document to control the drainage and sewage discharge of industrial enterprises

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core tip: Based on the time limit determined in the implementation plan of Shandong Province for the prevention and control of water pollution awards 10. unit conversion: KGF action plan, and actively carry out the upgrading and transformation of treatment facilities according to the management requirements of the city and county (city, district) where they are located, Ensure that the total nitrogen and other indicators of effluent meet the level a or recycling standards on schedule

recently, the problem of exceeding the standard of 50mm sewage treatment plants in some cities and counties in Shandong has occurred frequently. After investigation, it is found that a considerable proportion of them are due to the failure of individual enterprises to strictly implement the drainage and sewage discharge permits, and even the unauthorized discharge of wastewater into the pipes, resulting in damage to the biochemical system of the receiving treatment facilities, and then affecting the water quality of downstream rivers and lakes. At the same time, according to the automatic and supervisory monitoring of the ecological environment department, the total nitrogen indicators of sewage treatment plants and industrial enterprises in a few areas have exceeded the standard for a long time, and the exceeding multiple is high. The problem is more prominent. If it is not solved immediately, it may lead to eutrophication of the water body in the catchment area, lead to red tides, water blooms and other phenomena, and cause ecological damage

in view of the above problems, the notice clearly states that enterprises must perform the environmental protection subject according to law. Where the wastewater is directly discharged into the environment, the corresponding limit values of all indicators including total nitrogen indicators in the integrated discharge standard for water pollutants in river basins, Part 1 to Part 5, shall be implemented according to the environmental impact assessment requirements of the ecological environment department and the local city and industry characteristics; For those indirectly discharged into the urban sewage treatment facilities, the rare earth functional materials shall obtain the sewage discharge license issued by the ecological environment department and the drainage license issued by the Urban Drainage Authority in accordance with the relevant provisions, and ensure that the discharged wastewater meets the requirements of the water quality standard for sewage discharged into urban sewers and the national indirect discharge standards for relevant industries after pretreatment

if the concentration of total nitrogen and other indicators exceeds the standard due to the backward process and insufficient treatment capacity of internal sewage treatment facilities, the existing facilities shall be upgraded as soon as possible; Before reaching the standard discharge, the production shall be limited, the production shall be stopped or a temporary sewage treatment station shall be set up. It is strictly prohibited to discharge the excessive sewage. The competent department of urban drainage shall take the lead in checking the industrial enterprises entering the urban sewage treatment plant, establish a list of enterprises under management, and organize experts from the ecological environment department, sewage plants and enterprises to jointly demonstrate and evaluate the key drainage units. If it is judged that their wastewater is difficult to be effectively treated by the urban sewage treatment plant or may affect the stability of the effluent of the sewage treatment plant, it shall be ordered to withdraw within a time limit; Those who fail to carry out pretreatment as required or discharge wastewater exceeding the standard may be rejected; Industrial enterprises such as metallurgy, electroplating, chemical industry, printing and dyeing and API manufacturing enterprises (except API manufacturing enterprises with industrial wastewater treatment qualification and effluent meeting national standards) that discharge high concentration heavy metals or wastewater that is difficult to biodegrade, as well as strong acid, strong alkali, high salt and high fluorine wastewater discharged by relevant industrial enterprises, shall not be connected to urban sewage treatment plants. In areas where conditions permit, it can be explored to build control devices at the place where the drainage of key enterprises is connected to the municipal pipe, and the connection will be automatically cut off when the water quality exceeds the standard

according to the notice, the urban sewage treatment plant should take the time limit determined in the implementation plan of Shandong Province for implementing the action plan for water pollution prevention and control as the basis, and take the initiative to upgrade and transform the treatment facilities according to the management requirements of the city and county (city, district), so as to ensure that the total nitrogen and other indicators of the effluent meet the class A or recycling standards on schedule. It is a level-1 a standard during the planning and construction. For the failure of Jinan gold testing pulling machine and the completion of upgrading and reconstruction, the inspection, maintenance and management of facilities shall be strengthened to achieve stable and up to standard emission. If the wastewater from industrial enterprises is accepted, a regular monitoring mechanism for incoming water and a work management account shall be established; If conditions permit, measures such as "one enterprise, one management" and "smart management" can also be implemented to strengthen the monitoring of various water quality indicators such as total nitrogen in wastewater from enterprises under management. When the concentration of total ammonia and other indicators in the influent exceeds the standard, or there are other situations that may cause damage to the biochemical system and affect the quality of the discharged wastewater, it is necessary to immediately report to the Urban Drainage Department and the Ministry of ecological environment, and take relevant measures in accordance with the emergency plan. In addition, in case of maintenance and overhaul of the urban sewage treatment plant and impact by wastewater, the Urban Drainage Department shall make use of the pipe and pump station as much as possible to reasonably allocate the sewage, reduce its treatment load and provide conditions for the restoration of normal operation of its facilities