生物法处理压裂返排液实验研究

EXPERIMENTAL STUDY ON BIOLOGICALTREATMENT METHOD OF FRACTURING OUTLET LIQUID

摘要: 油气井压裂施工中所产生的压裂返排液，先用混凝-微电解-吸附预处理，再用生物法处理。结果表明，生物法处理后能使压裂返排液COD值降至100mg/l以下，使压裂返排液达到排放标准。

Abstract: The fracturing outlet liquid,which is produced from fracturing operation in the oil-gas well,is first pretreated by coagulation-micro-electrolysis-adsorption process and then by biological method.The experiment results show that biological method can make