CAJ | 학술논문

对河南油田钻井污水采用化学强化固液分离－絮凝沉降两步处理工艺进行了处理实验，确定了工艺条件，筛选出了最适宜的药剂配方。实验表明：河南油田钻井污水经上述工艺处理后水质达到排放要求（GB8978－1996），尤其是超高COD得到有效去除，从9960．2mg.l-1降低到150mg.l-1以下。
대하남유전찬정오수채용화학강화고액분리－서응침강량보처리공예진행료처리실험，학정료공예조건，사선출료최괄의적약제배방。실험표명：하남유전찬정오수경상술공예처리후수질체도배방요구（GB8978－1996），우기시초고COD득도유효거제，종9960．2mg.l-1강저도150mg.l-1이하。
The study in this paper was made on the disposal technique forwaste drilling fluid,which contained very high chemical oxygen demand(CODcr).A new method of two-step separation technique,chemical destabilization/centrifuge and flocculation/sedimentation,was proposed and used in treating the fluid.The result showed that absorption-bridging was the main process for the destabilization/flocculation.Next,the best chemical agents,those had good flocculation efficiency,were screened out.The result showed that the contents of heavy metal salts,SS and organic matters(COD,oil)of the wastewater resulted from the two-step separation treatment fitted to the standard of GB8978-1996.Especially the remove rate of COD was very high.COD reduced form 9960.2 mg.l-1 to 150 mg.l-1 lower.