摘要
以活性炭纤维丝(ACF)为载体,采用溶胶凝胶法制备Mg-Mn/ACF催化剂,利用浮动床反应器催化臭氧化处理实际印染废水二级出水和阳离子红X-GRL模拟废水。考察不同初始pH、催化剂用量、进气流量、O3含量、HRT等参数对处理效果的影响以及催化剂的稳定性。结果显示,当pH=8、催化剂用量4 g/L、气体体积流量0.9 L/min、O3的质量浓度40 mg/L、HRT 40 min,反应运行80 min时,实际印染废水处理效果最好,COD去除率约为80%;催化剂的使用寿命长,连续使用25次后,模拟废水中COD去除率仍可达64%,仅下降8%。
A Mg-Mn bi-metallic oxide supported on activated carbon filament （AFC） was fabricated by a sol-gel method, the secondary effluent in actual printing and dyeing wastewater plant and cationic red X-GRL simulated wastewater were treated by floating bed reactor catalytic ozonation. The effects of different initial pH, catalytic dosage, air flow rate, ozone content and HRT on the treatment efficiency and the stability of catalyst were investigated. The experimental results showed that when pH, catalyst dosage, gas volume flow rate, mass concentration ofOa, HRT and reaction time was 8, 4 g/L, 0.9 L/min, 40 mUL, 40 min and was 80 min respectively, the actual dyeing wastewater treatment had the best effect and the removal rate of COD was about 80%. The catalyst still had good catalytic performance after be repeatedly used for 25 times, the removal rate of COD in simulated wastewater could still reach 64%, only decreased 8%.
作者
管相宁
马宗凯
李之鹏
朱亚雄
尤宏
GUAN Xiangning;MA Zongkai;LI Zhipeng;ZHU Yaxiong;YOU Hong(State Key Laboratory of Urban Water Resource and Environment,College of Marine Scienee and Technology,Harbin Institute of Technology,Weihai 264209,China;Powerehina Chengdu Engineering Corporation,Chengdu 610072,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2018年第11期80-83,共4页
Technology of Water Treatment
基金
国家自然科学基金资助(51408158)
哈尔滨工业大学科研创新基金资助(HIT-NSRIF-2016098)
哈尔滨工业大学(威海)忮科学研究资金资助(HIT(WH)201403)
关键词
浮动床
臭氧催化氧化
印染废水
催化剂
floating bed
catalytic ozonation
printing and dyeing wastewater
catalyst
