钻井废水酸化-中和-混凝处理的试验研究

EXPERIMENTAL INVESTIGATION ON TREATMENT OF DRILLING WASTEWATER WITH ACIDIFICATION,NEUTRALIZATION AND FLOCCULATION METHOD

摘要: 采用酸化-中和-混凝组合法对钻井废水进行了试验研究。探讨了酸化-中和预处理的机理，筛选出了各处理过程处理剂的加量范围。试验结果表明，酸化能达到较好的破乳效果，在适当的工艺条件和加量下可有效降低钻井废水的COD值、悬浮物及油含量；用CaO作中和试剂，能进一步去除有机物，降低COD值及油含量。酸化-中和-混凝可在同一混凝池中进行，且经酸化-中和预处理后，可大幅地降低混凝剂的加量。

Abstract: Experimental studies on treatment of drilling wastewater have been made by a combined process, including acidification, neutralization and flocculation under various conditions. The mechanism of acidification and neutralization has been discussed, and the