燕山石化公司化工二厂采用异丙苯氧化法生产苯酚,其高浓度含酚污水主要来自苯酚、丙酮车间,水量每天约为300立方米,目前这股污水虽经异丙苯萃取,但萃取后的出水含酚量仍在800mg/l左右。出水直接排入向阳污水处理场进行生化处理,这不仅给向阳污水场的运行造成困难,而且使大量物料流失。为此,在对原有预处理系统进行 The second plant of Yanshan Petrochemical Company uses cumene oxidation to produce phenol. The high concentration of phenol-containing wastewater mainly comes from the phenol and acetone workshops. The water volume is about 300 cubic meters per day. At present, although this sewage is extracted by cumene, The water content of phenol is still about 800mg / l. The effluent is directly discharged into the Xiangyang Sewage Treatment Plant for biochemical treatment, which not only poses difficulties to the operation of Xiangyang Sewage Plant, but also causes a large amount of material to be lost. To this end, the original pretreatment system