摘要
采用活性炭吸附法和超滤法,对城市污水厂二级出水进行了深度处理试验研究·试验结果表明,粒状活性炭对污水中溶解性有机物有较好的去除效果,当允许出水CODcr为15mg/L以下、炭层厚度为2m、滤速为3m/h、5m/h和7m/h时,吨水用炭量基本在0 2kg/m3·超滤对水中浊度去除率在95%以上·超滤膜清洗采用洗涤剂配制的清洗液及质量分数为5%的H2SO4、4%的NaOH溶液清洗,膜通量可得到较好的恢复·
Advanced treatment of wastewater is done as test by GAC and ultrafiltration. GAC can effectively absorb organics in wastewater from water treatment plant. With 2m GAC thicknesses and below 15 mg/L of organics in water at 3 m/h, 5 m/h and 7 m/h current velocity, GAC quantity used per ton water is some 0. 2 kg. Ultrafiltration test remove turbid from wastewater by over 95%. Washing ultrafiltration by washing solution made with detergent and 5% of H2SO4, 4% of NaOH is effective.
关键词
污水深度处理
活性炭
超滤
advanced treatment of wastewater
GAC
ultrafiltration
