低温等离子体净化苯甲酸废水研究
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摘要
采用低温等离子体技术处理模拟苯甲酸废水,研究了苯甲酸溶液浓度、pH值、放电电压、放电时间等对苯甲酸废水COD的影响。结果表明,影响苯甲酸溶液COD降解率因素主次顺序为:苯甲酸溶液pH值>苯甲酸溶液浓度>放电时间>放电电压。在苯甲酸溶液浓度1. 5 g/L,溶液pH为6,放电电压410 k V,放电时间2. 0 h的条件下,苯甲酸废水的COD降解率最好,可达65. 59%。
Non-thermal plasma has been applied to treat benzoic acid wastewater. The influence rule of benzoic acid wastewater initial pH value,solution concentration and discharge time,discharge voltage on COD degradation rate were investigated. The result showed that the factors affecting the COD degradation rate of benzoic acid wastewater were determined as follows: wastewater initial pH value > solution concentration > discharge time > discharge voltage. The COD highest removal rate of benzoic acid wastewater reaches 65. 59%,when the optimal conditions are as follows: discharge voltage 410 kV,discharge time2. 0 h,solution concentration 1. 5 g/L,pH 6.
Non-thermal plasma has been applied to treat benzoic acid wastewater. The influence rule of benzoic acid wastewater initial pH value,solution concentration and discharge time,discharge voltage on COD degradation rate were investigated. The result showed that the factors affecting the COD degradation rate of benzoic acid wastewater were determined as follows: wastewater initial pH value > solution concentration > discharge time > discharge voltage. The COD highest removal rate of benzoic acid wastewater reaches 65. 59%,when the optimal conditions are as follows: discharge voltage 410 kV,discharge time2. 0 h,solution concentration 1. 5 g/L,pH 6.
引文
[1]黎玉香.新型Fenton-流化床催化载体制备及处理苯甲酸废水的研究[D].广州:华南理工大学,2012.
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[5] Zhang Hao,Ma Danyan,Qiu Rongliang,et a1. Non-thermal plasma technology for organic contaminated soil remediation:A review[J]. Chemical Engineering Journal,2017,313:157-170.
[6] Shi J W,Bian W J,Yin X L. Organic contaminants removal by the technique of pulsed high-voltage discharge in water[J]. Journal of Hazardous Materials,2009,171(1/2/3):924-931.
[7] Biljana P D,Goran M R,Bratislav M O,et al. Decolorization of reactive textile dyes using water falling film dielectric barrier discharge[J]. Journal of Hazardous Materials,2011,192(2):763-771.
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[9]荣俊锋.等离子体协同紫外光催化净化聚丙烯酰胺废水[J].应用化工,2016,45(8):1535-1538.
[10]荣俊锋,陆雪玉,张帅,等.填料吸附-等离子体氧化协同处理苯酚废水[J].环境工程,2016,45(12):53-57.
[11] Jeong-Ann Park,Boram Yang,Chanhyuk Park,et a1. Oxidation of microcystin-LR by the Fenton process:Kinetics,degradation intermediates,water quality and toxicity assessment[J]. Chemical Engineering Journal,2017,309:339-348.
[12]张宗鹏. Fenton体系氧化降解苯甲酸废水的研究[D].天津:天津科技大学,2015.
[13]王保伟,董博,刘震,等.非平衡等离子体降解废水中有机污染物研究进展[J].环境工程学报,2015,9(10):4613-4622.
[14]左岩,阎光绪,郭绍辉.低温等离子体氧化技术在废水处理中的应用[J].水处理技术,2008,34(7):1-2.
[15] Bruce R Locke,Selma Mededovic Thagard. Analysis and review of chemical reactions and transport processes in pulsed electrical discharge plasma formed directly in liquid water[J]. Plasma Chem Plasma Process,2012,32:875-917.
[2]朱桂琴,赵娜,郭芬芬. H-103大孔吸附树脂处理废水中苯甲酸研究[J].工业水处理,2010,30(4):63-65.
[3]苗艳芳.苯甲酸类化合物的微生物降解研究[D].成都:四川大学,2003
[4] Shi Yunxi,Cai Yixi,Wang Jing,et al. Influence of PM size distribution and ingredients on DPF regeneration by nonthermal plasma technology[J]. Plasma Chemistry and Plasma Processing,2017,37(2):451-464.
[5] Zhang Hao,Ma Danyan,Qiu Rongliang,et a1. Non-thermal plasma technology for organic contaminated soil remediation:A review[J]. Chemical Engineering Journal,2017,313:157-170.
[6] Shi J W,Bian W J,Yin X L. Organic contaminants removal by the technique of pulsed high-voltage discharge in water[J]. Journal of Hazardous Materials,2009,171(1/2/3):924-931.
[7] Biljana P D,Goran M R,Bratislav M O,et al. Decolorization of reactive textile dyes using water falling film dielectric barrier discharge[J]. Journal of Hazardous Materials,2011,192(2):763-771.
[8]屈广周,李杰,梁冬丽,等.低温等离子体技术处理难降解有机废水的研究进展[J].化工进展,2012,31(3):662-670.
[9]荣俊锋.等离子体协同紫外光催化净化聚丙烯酰胺废水[J].应用化工,2016,45(8):1535-1538.
[10]荣俊锋,陆雪玉,张帅,等.填料吸附-等离子体氧化协同处理苯酚废水[J].环境工程,2016,45(12):53-57.
[11] Jeong-Ann Park,Boram Yang,Chanhyuk Park,et a1. Oxidation of microcystin-LR by the Fenton process:Kinetics,degradation intermediates,water quality and toxicity assessment[J]. Chemical Engineering Journal,2017,309:339-348.
[12]张宗鹏. Fenton体系氧化降解苯甲酸废水的研究[D].天津:天津科技大学,2015.
[13]王保伟,董博,刘震,等.非平衡等离子体降解废水中有机污染物研究进展[J].环境工程学报,2015,9(10):4613-4622.
[14]左岩,阎光绪,郭绍辉.低温等离子体氧化技术在废水处理中的应用[J].水处理技术,2008,34(7):1-2.
[15] Bruce R Locke,Selma Mededovic Thagard. Analysis and review of chemical reactions and transport processes in pulsed electrical discharge plasma formed directly in liquid water[J]. Plasma Chem Plasma Process,2012,32:875-917.