Sewage treatment method and system

• Main Authors: HUO XIANGMING, ZHANG SILONG, GUO LINLIN, FENG QING'AN, ZHANG XIAOGANG, ZHANG JIANCHUN
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a sewage treatment method and system. The method comprises the steps of feeding a flocculating agent and a carbon source to entering sewage separately, wherein the initial total phosphorus concentration and initial total nitrogen concentration of the sewage do not conform to the concentration of up-to-standard discharge; and treating the sewage fed with the flocculating agent and the carbon source by combining a coagulation-settlement process and a denitrification deep-bed filter process, so that the final total phosphorus concentration and final total nitrogen concentration of the treated sewage are reduced. According to the wastewater treatment method and system, the sewage with relatively high total phosphorus concentration and total nitrogen concentration can be treated, and the final total phosphorus concentration and final total nitrogen concentration of the treated sewage are reduced. 本发明公开了种污水处理方法及系统，该方法包括：在进水的污水中分别投加混凝剂和碳源，所述污水的初始总磷浓度和初始总氮浓度均不符合达标排放的浓度；通过混凝沉淀工艺和反硝化深床滤池工艺，组合处理已