UV/蓝藻炭催化臭氧降解水中对氯苯酚研究

Research on UV/Cyanobacterial Carbon Catalytic Ozone Degradation 4-chlorophenol in Water

湖泊富营养化产生大量的藻类,打捞出来的藻类若不进行有效处理将会产生二次污染。针对此问题,对巢湖打捞出的蓝藻进行资源化利用,碳化制成蓝藻炭应用于催化氧化降解水中有机污染物对氯苯酚。结果表明,在50mg/L的150 m L的对氯苯酚溶液中,臭氧投加量为1 000 mg/h,蓝藻炭催化剂投加量为0.3 g,溶液初始p H为10.2,温度为25℃,在30 min时对氯苯酚降解率为80%。外加紫外(UV)光照射,进一步提高对氯苯酚的降解率为93%,UV/蓝藻炭具有较好的催化臭氧活性,提高了臭氧降解对氯苯酚效率。

Eutrophication of lakes produces large amounts of algae,and the salvaged algae will cause secondary pollution without effective treatment.In order to solve this problem,the salvaged cyanobacteria are reused to make cyanobacterial carbon to catalyze degradation of 4-chlorophenol in the paper.The results show that in the 150 mL of 4-chlorophenol solution with concentration of 50 mg/L,the ozone dosage is 1 000 mg/h,the catalyst dosage is 0.3 g,the initial solution pH is 10.2,the temperature is 25 Celsius,and the 4-chlorophenol degradation rate reaches 80%when the reaction time is 30 min.In addition,the ultraviolet light(UV)irradiation has an enhanced effect on the reaction,which can increase the removal rate to 93%.UV/cyanobacterial carbon has good catalytic ozone activity,and improve the efficiency of ozone degradation of 4-chlorophenol.