两部门联合发布4项污染物排放标准

Core Viewpoint - The Ministry of Ecology and Environment and the State Administration for Market Regulation have jointly released revised pollutant discharge standards for urban sewage treatment plants and three other industries, aiming to enhance pollution control and adapt to current environmental needs [1] Group 1: Urban Sewage Treatment Standards - The new standards for urban sewage treatment plants introduce four instantaneous value indicators: chemical oxygen demand, ammonia nitrogen, total nitrogen, and total phosphorus [1] - The limits for pH, color, and fecal coliform bacteria have been adjusted from daily average values to instantaneous values based on monitoring norms and actual conditions in China [1] - Differentiated control requirements for fecal coliform bacteria are established based on different discharge directions [1] Group 2: Food Processing and Related Industries - The revised standards for the food processing, slaughtering and meat processing, and alcoholic beverage manufacturing industries address the inadequacies in the current pollutant discharge standards, particularly in managing characteristic pollutants and indirect discharge requirements [1] - The revisions optimize the management of characteristic pollutants and enhance the requirements for indirect discharge control [1] - New provisions are introduced for the negotiation of pollutant discharge concentration limits between discharging units and centralized sewage treatment facilities [1]