旋转填充床中多种高级氧化工艺的比较  

The Comparison of Advanced Oxidation Processes in Decomposing Acid Red B in a Rotating Packed Bed

作　　者：李鑫[1] 曾泽泉[1] 邵磊[1] 

机构地区：[1]北京化工大学教育部超重力工程研究中心,北京100029

出　　处：《山西农业大学学报（自然科学版）》2011年第1期86-90,共5页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：教育部"新世纪优秀人才支持计划"(NCET-07-0053)

摘　　要：基于O3的高级氧化工艺处理污水受制于O3的利用率,旋转填充床的应用能有效地提高臭氧吸收率和利用率。通过比较在旋转填充床中利用高级氧化工艺(O3,H2O2、O3/H2O2,O3/Fe2+,Fenton,O3/Fenton)对酸性红B进行脱色的效果,考察了O3/Fenton体系下H2O2和Fe2+的最佳摩尔比和Fe2+的最佳投加量,比较了在不同初始pH下各种氧化工艺的脱色效果以及在中性条件下各高级氧化工艺的脱色速率。结果表明,O3/Fenton体系下H2O2与Fe2+的最佳摩尔比为10∶1,Fe2+的最佳投加量为0.5 mmol·L-1。在低pH时O3/Fe2+与O3/Fenton相对于单独O3有着明显优势,中性时O3/Fenton体系有着最大的K值。The application of rotating packed bed can effectively increase the absorption rate and utilization of O3 which was hard to improve in advanced oxidation processes.This study compared several different advanced oxidation processes（O3,H2O2,O3/H2O2,O3/Fe2＋,Fenton,O3/Fenton） in decomposing Acid Red B in a rotating packed bed.The optimal proportion of H2O2 and Fe2＋ and the Fenton dosage in O3/Fenton system was evaluated.The decolorization rates of these advanced oxidation processes in different initial pH and reaction rates in neutral condition were compared respectively.The results showed that in O3/Fenton system the optimal proportion of H2O2 and Fe2＋ was 10∶1.The optimal dosage of Fe2＋ was 0.5mmol·L-1.At acidic pH,the decolorization rate of O3/Fe2＋ and O3/Fenton were much higher than O3.The K value of O3/Fenton system was the largest of all the advanced oxidation processes in neutral condition.

关 键 词：旋转填充床 高级氧化 酸性红B 臭氧 

分 类 号：TQ031[化学工程]