多金属氧化物催化臭氧氧化处理苯酚废水的研究  

Catalyic Ozonation of Phenol Wastewater by Polymetallic Oxides

作　　者：任燕飞 付进南 赵双[3] 张杉 王晓慧 海热提 REN Yan-fei;FU Jin-nan;ZHAO Shuang;ZHANG Shan;WANG Xiao-hui;HAI Re-ti(Beijing Engineering Research Center of Environment Material far Water Purification, Beijing University of Chemical Technology, Beijing 100029 , China;Beijing OriginWater Technology Co. Ltd., Beijing 102206 , China;Beijing Daxing Water Resources Bureau, Beijing 102699 , China)

机构地区：[1]北京化工大学北京市水处理环保材料工程技术研究中心,北京100029 [2]北京碧水源科技股份有限公司,北京102206 [3]北京市大兴区水务局,北京102699

出　　处：《中国给水排水》2019年第7期86-90,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51408020);天津市科技计划项目(17YFCZZC00490);中央高校基本科研业务费专项资金资助项目(PT1805&JD1901)

摘　　要：自制3种多金属氧化物负载催化剂,即MnO-CuO-FeO/活性炭、MnO-CuO-FeO/Al2O3,MnO-CuO-CeO/Al2O3,用于催化臭氧氧化处理苯酚废水,对其影响因素进行了研究,并与单独臭氧氧化工艺进行对比。结果表明,在pH值为9.53、臭氧投加量为14.8mg/L、催化剂投加量为7.5g/L的条件下,MnO-CuO-FeO/活性炭催化剂催化臭氧氧化工艺对苯酚的去除效果最佳,去除率高达94.8%,COD去除率为53.4%,连续使用6次后,苯酚去除率仍可达到81.6%。通过加入務基自由基抑制剂叔丁醇的试验可知,轻基自由基对苯酚的降解起主要作用。Three kinds of polymetallic oxide supported catalysts, namely MnO-CuO-FeO/activated carbon, MnO-CuO-FeO/Al2O3 and MnO-CuO-CeO/Al2O3, were prepared to catalyze ozonation of phenol wastewater. The influencing factors were explored and compared with a single ozonation process. The results showed that the ozonation process of MnO-CuO-FeO/activated carbon catalyst had the best removal effect on phenol under the conditions of pH value of 9. 53, ozone dosage of 14. 8 mg/L and catalyst dosage of 7. 5 g/L, and the removal rates of phenol and COD were as high as 94. 8% and 53. 4%, respectively. After 6 times of continuous reuse, the removal rate of phenol could still reach 81.6%. The hydroxyl radical played an important role in the degradation of phenol, which was proved by adding tertbutanol to inhibit hydroxyl radical.

关 键 词：催化臭氧氧化 苯酚废水 多金属氧化物催化剂 

分 类 号：TU992[建筑科学—市政工程]