磁混凝沉淀在污水处理厂提标中的应用实例

Application of Magnetic Coagulating Sedimentation in Upgrading of Sewage Treatment Plant

恩平市某污水处理厂设计处理规模为3500 t/d,提标前采用的排放标准为广东省地方标准《水污染物排放限值》(DB44/26-2001)第二时段一级标准和《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准中的较严者。提标升级后,污水厂出水水质需达到《城镇污水处理厂污染物排放标准》一级A标准及广东省地方标准《水污染物排放限值》第二时段一级标准的较严值。提标工程增加了磁混凝沉淀工艺,保证SS、总磷等污染物指标稳定达到排放标准。

A sewage treatment plant in Enping,treating sewage up to 3500 t/d,meet the stricter standard between the primary standard of second period in《Discharge limits of water pollutants》(DB44/26-2001)and the primary B standard in《Discharge standard of pollutants for municipal wastewater treatment plant》(GB18918-2002)before upgrading.It should reach the stricter standard between the primary A standard in《Discharge standard of pollutants for municipal wastewater treatment plant》(GB18918-2002)and the primary standard of second period in《Discharge limits of water pollutants》(DB44/26-2001)after renovation.Magnetic coagulating sedimentation is added to the treatment process in order to improve the removal rate of suspended solid as well as total phosphorus and offer guarantee for achieving the discharge standard after upgrading.