矿区生活污水处理工艺及效果

MINING AREA SEWAGE TREATMENT PROCESS AND EFFECT1

通过对河北南部七个矿区生活污水处理厂现场调研分析,总结了矿区生活污水水量和水质特点,比较了各矿生活污水处理工艺及效果。结果表明,矿区生活污水COD普遍较低,水质水量变化较大,水厂实际处理水量远小于设计规模,采用工艺有氧化沟、AO法、CASS、ICEAS、SBOT池等,出水水质均达到《城镇生活污水处理厂污染物排放标准》(GB18918-2002)一级B标准,部分达到一级A标准,回用方向有:景观绿化、矿区综合降尘、采空区注浆或直接排放,也有供给附近电厂用于循环冷却水,产生良好的环境、社会及经济效益。

Seven mine in southern Hebei district sewage treatment plant site investigation analysis, summarizes the mining area sewage water quantity and water quality characteristics,compares each mine sewage treatment process and effect.The results showed that the COD of the sewage in the mining area are generally lower, the change of water quality and water quantity is larger, The actual manipulation of the waterworks water is far less than the design scale, by the methods of process with oxidation ditch, AO, CASS, ICEAS, SBOT, etc.Effluent water quality all reached the Discharge Standard of Pollutants for Municipal Wastewater Treatmentplant（GB18918-2002） First level B standard, part of the water quality has reached the level of A standard.Direction of the retrieval and utilization of mine water are：landscaping, mining area comprehensive mine grouting or direct emissions, dust, and used in circulating cooling water of power plant near the supply.Back to the water to produce good environmental, social and economic benefits.