高级氧化和脱吸耦合处理地下污水工艺的研究

The combination of advanced oxidation and desorption to treat polluted underground water

以高级氧化和脱吸耦合的方式脱除模拟地下水中的氯苯、苯胺、苯。考察了活性氧药剂加入量、停留时间、pH等因素对水体降解能力的影响,并且结合实际土壤污水处理,设计了脱吸塔设备和活性氧药剂设备相结合的处理工艺。结果表明在活性氧投加量4%(质量分数),pH=7的条件下,经过该方式处理后的地下水中氯苯、苯胺、苯的质量浓度均小于0.05 mg/L,达到预期效果和国家排放标准。

Advanced oxidation and desorption have been used to remove chlorobenzene,aniline,and benzene from simulated underground water.The impact of varying the hydroxyl radical dosage,residence time and pH on the degradation capacity was investigated.A new treatment process which combined a desorption tower and a hydroxyl radical oxidation apparatus was designed and employed for the treatment of actual soil sewage.The results showed that with a reactive oxygen dosage of 4%（mass fraction） and pH of 7,the concentrations in the processed groundwater of the above three organic pollutants were reduced to less than 0.05 mg/L.These results meet the national emission standards.