生物法处理含油钻井废水的影响因素研究

Factors in the treatment of drilling wastewater by biological method

以含油钻井废水原浆为处理对象，研究了生物法处理过程中的相关影响因素。实验结果表明，氮、磷源是影响钻井废水中石油烃降解的重要因素，最佳氮、磷源及其加入量分别为（NH4）2SO4 100mg／L和KH2PO4 60mg／L。在30-36℃，接种量15％，pH=6～8条件下处理72h后可使钻井废水中的石油烃含量由805．6mg／L下降到17．6mg／L。

Correlative factors in the biological treatment of drilling wastewater were researched. The experimental results show that N and P sources are important factors affecting degradation in the process, concentrations of （NH4） 2S04 and KH2PO4 are 100 mg/L and 60 mg/L respectively. When the temperature was from 30℃ to 36℃, inoculum size was 15% , pH was from 6 to 8, the content of petroleum hydrocarbon in drilling wastewater dropped from 805.6 mg/L to 17.6 mg/L after 72 h.