生态环境学报Issue(5)：817-823,7.
生物滴滤塔耦合光催化氧化技术处理电子垃圾拆解车间排放废气的中试研究
Pilot-scale study on waste gas treatment from e-waste dismantling by combined technique of biological trickling filter with photocatalytic oxidation
摘要
Abstract
Pilot-scale study of removal of e-waste dismantling waste gas by combined technique of biological trickling filter (BFT) and photocatalytic oxidation (PCO) were conducted in the work. Results showed that high concentrated total suspended particulate (TSP) and volatile organic compounds (VOCs) were detected from the emitted gas from e-waste dismantling process. The concentration of TSP was in the range of 3792.5 to 7387.9 µg·m-3, which was much higher than 3rd grade value of Chinese ambient air quality control criteria (500 µg·m-3). And VOCs were mainly composed of aromatic, oxygenated and nitrogenated, halogenated and aliphatic VOCs with the concentration between 5499.1±854.7 and 26834.0±447.0 µg·m-3. Among these four kind of VOCs, aromatic VOCs account for the highest content with the concentration of 2369.9 ± 359.8 to 24419.6±229.5 µg·m-3, followed with oxygenated and nitrogenated VOCs, and halogenated VOCs with the concentrations ranged from 1018.2±142.1~2144.2±167.5 µg·m-3and 1170.6±146.5~1936.6±353.3 µg·m-3. The concentration of aliphatic VOCs was the lowest of 44.6±0.8 and 174.4±0.5 µg·m-3. Compared with single BTF and PCO, BTF-PCO combined technique displayed more effective capability in the removal of both TSP and VOCs emitted from e-waste dismantling process. It was found that the concentration of TSP greatly decreased to 747.4~1750.9 µg·m-3after BTF-PCO treatment with the removal efficiency of more than 76.3%. In the case of VOCs, the removal efficiencies are equal to or higher than 97.0%,92.4%,83.4% and 100% for aromatic, oxygenated and nitrogenated, halogenated and aliphatic VOCs, respectively.关键词
电子垃圾/总悬浮颗粒物/挥发性有机物/生物技术/光催化氧化/中试研究Key words
e-waste/total suspended particulate/volatile organic compounds/biotechnology/photocatalytic oxidation/pilot-scale study分类
资源环境引用本文复制引用
黄勇,陈江耀,李建军,廖东奇,李桂英,安太成..生物滴滤塔耦合光催化氧化技术处理电子垃圾拆解车间排放废气的中试研究[J].生态环境学报,2014,(5):817-823,7.基金项目
广东省科技计划项目(2012A032300017)；佛山市院市合作项目(2012HY100101)；国家自然科学基金项目(41373102)；广东省自然科学基金团队项目(S2012030006604) （2012A032300017）
