【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 10 0mg/l以下 ,使压裂返排液达到排放标准。更多还原

【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 the COD of the wastewater reduced to less than 100mg/l and the wastewater meet the discharge standard.更多还原