【摘要】 针对邻氯苯酚废水有毒、不易降解、氧化剂投加量高等问题，拟自制混凝剂对其进行处理。分别开展了混凝协同超声联合法和单独使用混凝剂法处理研究，并对2种方法的处理效果进行对比分析。考察了混凝剂投加量、废水pH值、混凝处理时间、超声反应时间等因素对邻氯苯酚废水处理效果的影响。结果表明：室温下，在邻氯苯酚废水体积为300 mL，初始质量浓度为50.0 mg/L，混凝剂投加量为0.8 g/L，废水pH值为4，混凝处理时间为50 min，超声波频率为40 kHz，功率为180 W，超声反应时间为50 min的试验条件下，经过处理后邻氯苯酚去除率可以达到95.9%。在相同的混凝剂投加量（0.8 g/L）的条件下，混凝协同超声联合法处理邻氯苯酚废水的效果优于单混凝剂法，邻氯苯酚的去除率增加42.6%。更多还原

【Abstract】 To address the issues of o-chlorophenol wastewater being toxic, difficult to degrade, and requiring high dosages of oxidants, a self-made coagulant was prepared for its treatment. The combined method of coagulation synergized with ultrasound and the method using coagulant alone for treating the wastewater were studied separately, with the treatment efficiency of the two methods compared and analyzed at the same time. The effects of factors such as coagulant dosage, pH value of the wastewater, coagulation time, and ultrasonic reaction time on the treatment efficiency were investigated. The results showed that, under the experimental conditions of room temperature, an o-chlorophenol wastewater volume of 300 mL, an initial mass concentration of 50.0 mg/L, a coagulant dosage of 0.8 g/L, a wastewater pH value of 4, a coagulation time of 50 min, an ultrasonic frequency of40 kHz, a power of 180 W, and an ultrasonic reaction time of 50 min, the removal rate of o-chlorophenol could reach 95.9% after the treatment. Under the condition of the same coagulant dosage of 0.8 g/L, the combined method of coagulation synergized with ultrasound outperformed the single coagulant method in treating ochlorophenol wastewater, increasing the removal rate of ochlorophenol by 42.6%.更多还原