多元复合混凝剂PAFCS处理炼油厂废水  

Study of Treating Refinement Oil Wastewater by PAFCS

作　　者：刘卫东[1] 吴敦虎[1] 王曙光[1] 王照力 郝黎明 

机构地区：[1]大连铁道学院环境科学与工程系,辽宁大连116028 [2]大连西太平洋石油化工有限公司,辽宁大连116600

出　　处：《大连铁道学院学报》2003年第1期87-89,共3页Journal of Dalian Railway Institute

摘　　要：利用治理铝材加工厂废水所产生的氢氧化铝废渣,与一定量的盐酸,硫酸或钢铁酸洗废液经加热等处理,合成多元素的聚合氯化硫酸铝铁混凝剂(PAFCS)处理COD≤500mg/L,油含量≤500mg/L的炼油厂废水的最佳工艺条件:混凝剂投加量为40mg/L,pH范围为6.0～9.0,自然沉降时间2.5h.聚合氯化硫酸铝铁混凝剂(PAFCS)处理COD 1000mg/L左右,油含量100mg/L左右的炼油厂废水,宜采用二次混凝处理法,一次投加量为100mg/L,二次投加量为30mg/L,出水的pH,COD,油含量均达到国家一级排放标准.Polymeric Aluminum Ferric Chloride Sulfate (PAFCS) is made by heating waste residue of aluminum hydroxide from treating waste water in aluminum processing factory, together with hydrochloric and sulfuric acids or waste acid liquid after iron and steel washing. When PAFCS is used for treating waste water with COD ≤ 500 mg/L and oil≤50mg/L from oil refinery, the optimum operation is that the amount of the coagulant charge is 40mg/L with pH 6.9-9.0 and sedimentation time is 2.5 hours. It is better to apply double coagulating process to treating the waste water with COD 1000g/L and oil 50mg/L, and the first amount of coagulant charge is 100mg/L, second one 30mg/L. The treated water meets the requirement of the GB8978-1996 wastewater drainage standard.

关 键 词：炼油厂 废水处理 PAFCS 工艺条件 聚合氮化硫酸铝铁混凝剂 二次混凝处理法 

分 类 号：X742[环境科学与工程—环境工程]