聚环氧琥珀酸(PESA)对高硬度废水生物处理系统的作用  

Performance of Polyepoxysuccinic Acid(PESA) in the Biological Treatment of High Hardness Wastewater

作　　者：赵凯[1] 孔秀琴[1] 邢春霞[1] 邓爱云 

机构地区：[1]兰州理工大学石油化工学院,兰州730050 [2]兰州市蓝星清洗有限公司,兰州730050

出　　处：《土木建筑与环境工程》2013年第3期121-125,共5页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金资助(51268034)

摘　　要：通过在活性污泥法处理高硬度废水的实验过程中加入绿色安全型阻垢剂聚环氧琥珀酸(PESA),对于COD在100～300mg/L,Ca2+浓度在110～280mg/L的高硬度废水,研究活性污泥系统的沉降性能、COD去除率、Ca2+保留率、生物相变化规律以及污泥减量化效果。结果表明,加入PESA的活性污泥反应器MLSS值低于普通活性污泥反应器,明显减少了污泥中无机组分的含量、钙泥的产出量,减量化程度达到41.33%,从而达到钙质废水处理中污泥减量化的目的;COD去除率能够达到90%以上,Ca2+保留率达到80%以上;PESA的加入抑制了部分钙盐在活性污泥表面的沉积,保持了活性污泥的良好生物活性;系统耐高硬度水冲击负荷能力增强;The settling property, COD removal rate, Ca2＋ retention rate, variations of biofacies and the effect of sludge reduction of the high hardness wastewater of the activated sludge process by adding green and safe scale inhibitor PESA （Polyepoxysuccinic Acid） during the experiment have been studied for the COD was 100-300 mg/L, calcium concentration was 110-280 mg/L of the high hardness of wastewater. The results show that MLSS was less than the ordinary activated sludge reactor, the content of the inorganic substrate in activated sludge was significantly reduced and resulted in the decrease of calcium activated sludge putout, the reduction reached to 41.33%, The purpose of calcium wastewater treatment sludge reduction was achieved. The COD removal rate of PESA activated sludge reactor reached above 90 %, the Ca2＋ retention rate reached above 80 %. PESA inhibits the sedimentation of a part of calcium salt in activated sludge surface, bioactivity was kept well, and in this concentration range, indicative microbial were able to grow and reproduce. The ability to resist impact load has been enhanced in high hardness water, sludge age extension.

关 键 词：阻垢剂 高硬度 活性污泥法 污泥减量化 

分 类 号：X703.1[环境科学与工程—环境工程]