1 2018年8月
环境与能源
过程工程学报
The Chinese Jourmal of Process Engineering
Vol.18 No.4 Aug.2018
DOI: 10.12034/j.issn.1009-606X.217393
Degradation ofhumicacid bymicrowave-Cu loaded activated carbon catalytic oxidation
ZailiangLIUi2,HailingMENG'，KeZHOU'，Tinglei LIU'，LuHONG!
1. School of Energy and Environment, Anhui University of Technology, Ma'anshan, Anhui 243032, China
2. Water Purification and Utilization Technology of Biofilm Process Engineering Research Center, Ministry of Education, Ma'anshan, Anhui 243032, China
Abstract: The catalysts of Cu/powder activated carbon (PAC) and Cu/granular activated carbon (GAC) were prepared and used to degradation humic acid (HA) in microwave catalytic oxidation process. The catalysts were characterized. The effects of catalyst dosage, H2O2 dosage, pH, microwave power and irradiation time on the degradation rate were studied. The mechanism of HA degradation under microwavecatalytic oxidation combined with H2O2 was suggested. The results showed that degradation rates of HA reached 93.91% and 91.59% using Cu/PAC and Cu/GAC as catalysts, respectively under the optimal conditions of Cu/PAC dosage of 1 g/L, H2O2 dosage of 0.9 mL/L, pH 3, microwave power of 400 W, irradiation time 4 min, and Cu/GAC dosage of 8 g/L,H202 dosage of 1.5 mL/L, pH 6, microwave power of 400 W, and irradiation time 4 min, respectively. A synergistic effect ofcatalyst, microwave, and H2O2 contributes to the high degradation rate of HA.
Key words: microwave; catalytic oxidation; Cu loaded activated carbon; H2O2; humic acid
微波-载铜活性炭催化氧化降解腐殖酸刘再亮12，孟海玲"，周科"，刘庭蕾"，洪露 1.安徽工业大学能源与环境学院，安徽马鞍山243002
2.生物膜法水质净化及利用技术教育部工程研究中心，安量马胺山243002
摘要：以粉末活性炭(PAC)和颗粒活性炭(GAC)为载体，采用浸渍焙烧法制备了负载铜氧化物的活性炭催化剂，考察了其表面结构、元素组成及BET参数：以腐殖酸模拟度水为对象，研究了微波-载铜活性炭催化氧化降解腐殖酸的效果和影响因素，探讨了微波-催化氧化协同H2O2降解腐殖酸的机理。结果表明，载铜活性炭比未负载铜的活性炭对腐殖酸的降解率更高，且Cu/PAC 的催化效果远优于Cu/GAC，两种催化剂最佳的微波-催化氧化条件分别为Cu/PAC投加量1g/L,H2O2投加量0.9mL/L，pH=3，微波功率400W，微波时间4min和Cu/GAC投加量8g/L，H:Oz投加量1.5mL/L，pH=6，微波功率400W，微波时间4min，该
条件下腐殖酸的去除率分别为93.91%和91.59%。微波、H20；和催化剂协同作用对腐殖酸高效降解有决定性作用关键调：微波：催化氧化：载铜活性炭：H2O2：腐殖酸
文献标识码：A
文章编号：1009-606X(2018)04088607
中图分类号：X703.1
1
前言
在我国北方和中西部地区，城镇污水处理厂的尾水
经深度处理回用于工业企业是解决水资源短缺问题的
重要途径之一[1,2]，尾水中含一定浓度的难降解有机物是造成后续深度处理过程中膜污染的重要原因(3.4)，腐殖酸是其中主要的污染物，占比高达40%~55%J5.6，进一步去除这些难降解有机物，尤其是去除腐殖酸以降低膜
收稿; 20171124,修回: 20180123,网络发表： 20180328, Received: 20171124, Revised: 20180123, Published online: 20180328 作者第介：刘再亮(1979-)，男。山东省济南市人，硕士，讲师，环境工程专业，E-mail:liuzailiang2008@163.com：盂海玲，通讯联系人，E-mail:
menghlahut@163.com
引用格式：刘再亮，孟海玲，周科，等、微波-载钢活性炭催化氧化降解腐殖酸。过程工程学报，2018,18(4)：886-892
LiuZL, MengH L, Zhou K,tal. Degadation ofbumic acid by microwaveCu loeded activated carbon catalyic oxidation (in Chines) Chin. J. Process Eng., 2018, 18(4): 886892, DOI: 10.12034/j.issn.1009-606X.217393.
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