高铁酸钾氧化去除油田污水中聚丙烯酰胺的研究

Removal of PAM from the sewage in oilfield by ferrate

采用高价铁酸盐(K2FeO4)为氧化剂,对油田含聚丙烯酰胺的污水进行降解和降粘的研究,探讨了高铁酸钾投加量、初始pH值、初始浓度和反应温度对氧化降解以及降粘的影响。结果表明,高铁酸钾是一种高效的强氧化剂,氧化PAM降解率在60min时达90%以上;降粘性能也非常显著,在15min时含PAM污水的粘度可以降至与蒸馏水相近的粘度。

Oxidation degradation and viscosity-breaking of polyacrylamide(PAM)in oilfield sewage have been investigated by using K 2 FeO 4 oxidant.The effectsof K 2 FeO 4 concentration,initial pH value,initial PAM concentration and reaction temperature have been evaluated.The resultsreveal that K 2 FeO 4 isa strong oxidant,the rate of oxidation degradation of PAM isabove90%in60min,the effect of viscosity-breaking isalso very obvious,and the viscosity of oilfield sewage containing PAM isdecreased to the same level asthat of distilled water in15min.