生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2014年
5期
817-823
,共7页
黄勇%陈江耀%李建军%廖东奇%李桂英%安太成
黃勇%陳江耀%李建軍%廖東奇%李桂英%安太成
황용%진강요%리건군%료동기%리계영%안태성
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
電子垃圾%總懸浮顆粒物%揮髮性有機物%生物技術%光催化氧化%中試研究
전자랄급%총현부과립물%휘발성유궤물%생물기술%광최화양화%중시연구
e-waste%total suspended particulate%volatile organic compounds%biotechnology%photocatalytic oxidation%pilot-scale study
采用生物滴滤塔(BTF)与光催化一体化(PCO)联用工艺应用于电子垃圾拆解现场废气处理的中试研究，研究结果表明：电子垃圾拆解现场排放的废气中含有高浓度的总悬浮颗粒物(TSP)和挥发性有机污染物(VOCs)。其中 TSP的质量浓度为3792.5~7387.9μg·m-3，远高于中国环境空气质量控制标准(GB3095-2012)的二级标准(300μg·m-3)；VOCs主要由芳香烃类VOCs、含氮含氧类VOCs、卤代烃类VOCs和脂肪烃类VOCs组成，总 VOCs的质量浓度为(5499.1±854.7)~(26834.0±447.0)μg·m-3，其中芳香烃类VOCs含量最高，其质量浓度为(2369.9±359.8)~(24419.6±229.5)μg·m-3，其次是含氮含氧类VOCs和卤代烃类VOCs,分别为(1018.2±142.1)~(2144.2±167.5)和(1170.6±146.5)~(1936.6±353.3)μg·m-3，脂肪烃类VOCs的质量浓度最低，只有(44.6±0.8)~(174.4±0.5)μg·m-3。相较单一BTF和PCO工艺，BTF-PCO联用工艺可以更为有效地去除电子垃圾拆解现场排放废气中的TSP和VOCs。研究结果表明，经过BTF-PCO处理后，出口TSP的质量浓度降低到747.4～1750.9μg·m-3，其去除率在76.3%以上，而对于VOCs来说，出口浓度下降更为明显，芳香烃类VOCs、含氮含氧类VOCs、卤代烃类VOCs和脂肪烃类VOCs的去除率分别大于或者等于97.0%、92.4%、83.4%和100%。
採用生物滴濾塔(BTF)與光催化一體化(PCO)聯用工藝應用于電子垃圾拆解現場廢氣處理的中試研究，研究結果錶明：電子垃圾拆解現場排放的廢氣中含有高濃度的總懸浮顆粒物(TSP)和揮髮性有機汙染物(VOCs)。其中 TSP的質量濃度為3792.5~7387.9μg·m-3，遠高于中國環境空氣質量控製標準(GB3095-2012)的二級標準(300μg·m-3)；VOCs主要由芳香烴類VOCs、含氮含氧類VOCs、滷代烴類VOCs和脂肪烴類VOCs組成，總 VOCs的質量濃度為(5499.1±854.7)~(26834.0±447.0)μg·m-3，其中芳香烴類VOCs含量最高，其質量濃度為(2369.9±359.8)~(24419.6±229.5)μg·m-3，其次是含氮含氧類VOCs和滷代烴類VOCs,分彆為(1018.2±142.1)~(2144.2±167.5)和(1170.6±146.5)~(1936.6±353.3)μg·m-3，脂肪烴類VOCs的質量濃度最低，隻有(44.6±0.8)~(174.4±0.5)μg·m-3。相較單一BTF和PCO工藝，BTF-PCO聯用工藝可以更為有效地去除電子垃圾拆解現場排放廢氣中的TSP和VOCs。研究結果錶明，經過BTF-PCO處理後，齣口TSP的質量濃度降低到747.4～1750.9μg·m-3，其去除率在76.3%以上，而對于VOCs來說，齣口濃度下降更為明顯，芳香烴類VOCs、含氮含氧類VOCs、滷代烴類VOCs和脂肪烴類VOCs的去除率分彆大于或者等于97.0%、92.4%、83.4%和100%。
채용생물적려탑(BTF)여광최화일체화(PCO)련용공예응용우전자랄급탁해현장폐기처리적중시연구，연구결과표명：전자랄급탁해현장배방적폐기중함유고농도적총현부과립물(TSP)화휘발성유궤오염물(VOCs)。기중 TSP적질량농도위3792.5~7387.9μg·m-3，원고우중국배경공기질량공제표준(GB3095-2012)적이급표준(300μg·m-3)；VOCs주요유방향경류VOCs、함담함양류VOCs、서대경류VOCs화지방경류VOCs조성，총 VOCs적질량농도위(5499.1±854.7)~(26834.0±447.0)μg·m-3，기중방향경류VOCs함량최고，기질량농도위(2369.9±359.8)~(24419.6±229.5)μg·m-3，기차시함담함양류VOCs화서대경류VOCs,분별위(1018.2±142.1)~(2144.2±167.5)화(1170.6±146.5)~(1936.6±353.3)μg·m-3，지방경류VOCs적질량농도최저，지유(44.6±0.8)~(174.4±0.5)μg·m-3。상교단일BTF화PCO공예，BTF-PCO련용공예가이경위유효지거제전자랄급탁해현장배방폐기중적TSP화VOCs。연구결과표명，경과BTF-PCO처리후，출구TSP적질량농도강저도747.4～1750.9μg·m-3，기거제솔재76.3%이상，이대우VOCs래설，출구농도하강경위명현，방향경류VOCs、함담함양류VOCs、서대경류VOCs화지방경류VOCs적거제솔분별대우혹자등우97.0%、92.4%、83.4%화100%。
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.
