Evaluation of industrial VOCs treatment techniques and regional treatment effect in Xiamen
JIN Yuezheng1,, JIN Lei1, WU Yicheng1, GAO Panfeng1, LIU Jianfu1, SU Guoxin2, ZHUANG Mazhan3, FU Haiyan1,, 1.Key Laboratory of Environmental Biotechnology, Fujian Province University, School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361024, China 2.Xiamen Ocean Vocational College, Xiamen 361100, China 3.Xiamen Academy of Environmental Sciences, Xiamen 361006, China
Abstract:370 enterprises (439 waste gas treatment systems) in 8 industries subject to intensive monitoring in Xiamen were selected to investigate the application of VOCs treatment technique in different industries and the actual VOCs removal effect. The effect of VOCs treatment in Xiamen regionally was evaluated based on a GIS platform. Results show that the average removal rates of VOCs by 6 treatment processes, i.e. activated carbon adsorption, UV photolysis, UV photolysis+activated carbon, plasma+UV photolysis, combustion process and other processes (cryogenic plasma, condensation recovery and biological process) were 79.6%, 73.7%, 71.9%, 69.2%, 82.1% and 68.6%, respectively. Combustion process has the highest removal rate of Monoaromatic Hydrocarbons(MACHs), followed by adsorption of activated carbon process, and UV photolysis and its associated processes. UV photolysis and its associated processes have problems in equipment management and selection of process and the overall treatment effect is poor. However, the process is suitable for the treatment of low concentration waste gas, e.g. the removal rate is high (about 80%) in the automobile repair industry. Combustion process and activated carbon adsorption process have good treatment effect. Combustion process has high VOCs removal rate and strong adaptability to different working conditions. It can be used for the treatment of high concentration of waste gas under high VOCs production (>1 000 kg·d?1) and high inlet air volume (> 20 000 m3·h?1). Although the treatment efficiency of other processes is not high, they can still be used because of its low cost. The regional treatment effect of 8 industry enterprises subject to intensive monitoring of VOCs decreases in the order of Siming District, Huli District, Haicang District, Xiang'an District, Jimei District, and Tong′an District. Key words:volatile organic compounds (VOCs)/ treatment techniques/ treatment efficiency/ geographic information system (GIS)/ effect evaluation.
图1厦门市8大行业企业数量占比图 Figure1.Proportion of different industries in Xiamen
LIANG X M, CHEN X F, ZHANG J N, et al. Reactivity-based industrial volatile organic compounds emission inventory and its implications for ozone control strategies in China[J]. Atmospheric Environment, 2017, 162: 115-126. doi: 10.1016/j.atmosenv.2017.04.036
[2]
LING Z H, GUO H. Contribution of VOC sources to photochemical ozone formation and its control policy implication in HongKong[J]. Environmental Science & Policy, 2014, 38: 180-191.
[3]
DURKEE B. Chemistry of Atmospheric reactions of VOCs leading to smog-cleaning with solvents[J]. Cleaning with Solvents, 2014, 14: 547-556.
JO W K, SONG K B. Exposure to volatile organic compounds for individuals with occupations associated with potential exposure to motor vehicle exhaust and/or gasoline vapor emissions[J]. Science of the Total Environment, 2001, 269(1): 25-37.
[8]
LU B, HUANG C, LU Q, et al. Emission inventory and pollution characteristics of industrial VOCs in Hangzhou, China[J]. Environmental Science, 2018, 39(2): 533-542.
[9]
ZHENG C H, SHEN J L, ZHANG Y X, et al. Quantitative assessment of industrial VOC emissions in China: Historical trend, spatial distribution, uncertainties, and projection[J]. Atmospheric Environment, 2017, 150: 116-125. doi: 10.1016/j.atmosenv.2016.11.023
[10]
DENG J J, DU K, WANG K, et al. Long-term atmospheric visibility trend in Southeast China, 1973-2010[J]. Atmospheric Environment, 2012, 59: 11-21. doi: 10.1016/j.atmosenv.2012.05.023
[11]
NIU Z C, ZHANG H, XU Y, et al. Pollution characteristics of volatile organic compounds in the atmosphere of Haicang District in Xiamen City, Southeast China[J]. Journal of Environmental Monitoring, 2012, 14(4): 1144-1151.
BERANJIAN A, CHAN N, MALMIRI H J. Volatile organic compounds removal methods: A review[J]. American Journal of Biochemistry and Biotechnology, 2012, 4(8): 220-229.
1.Key Laboratory of Environmental Biotechnology, Fujian Province University, School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361024, China 2.Xiamen Ocean Vocational College, Xiamen 361100, China 3.Xiamen Academy of Environmental Sciences, Xiamen 361006, China Received Date: 2020-08-16 Accepted Date: 2021-01-26 Available Online: 2021-06-25 Keywords:volatile organic compounds (VOCs)/ treatment techniques/ treatment efficiency/ geographic information system (GIS)/ effect evaluation Abstract:370 enterprises (439 waste gas treatment systems) in 8 industries subject to intensive monitoring in Xiamen were selected to investigate the application of VOCs treatment technique in different industries and the actual VOCs removal effect. The effect of VOCs treatment in Xiamen regionally was evaluated based on a GIS platform. Results show that the average removal rates of VOCs by 6 treatment processes, i.e. activated carbon adsorption, UV photolysis, UV photolysis+activated carbon, plasma+UV photolysis, combustion process and other processes (cryogenic plasma, condensation recovery and biological process) were 79.6%, 73.7%, 71.9%, 69.2%, 82.1% and 68.6%, respectively. Combustion process has the highest removal rate of Monoaromatic Hydrocarbons(MACHs), followed by adsorption of activated carbon process, and UV photolysis and its associated processes. UV photolysis and its associated processes have problems in equipment management and selection of process and the overall treatment effect is poor. However, the process is suitable for the treatment of low concentration waste gas, e.g. the removal rate is high (about 80%) in the automobile repair industry. Combustion process and activated carbon adsorption process have good treatment effect. Combustion process has high VOCs removal rate and strong adaptability to different working conditions. It can be used for the treatment of high concentration of waste gas under high VOCs production (>1 000 kg·d?1) and high inlet air volume (> 20 000 m3·h?1). Although the treatment efficiency of other processes is not high, they can still be used because of its low cost. The regional treatment effect of 8 industry enterprises subject to intensive monitoring of VOCs decreases in the order of Siming District, Huli District, Haicang District, Xiang'an District, Jimei District, and Tong′an District.