生物滴滤床法降解二氯甲烷废气的因素影响特征

doi:10.16085/j.issn.1000-6613.2020-0130

摘要/Abstract

摘要：

二氯甲烷作为溶剂广泛应用于制药行业，其挥发性废气对人类健康和大气环境的危害极大。本文采用生物滴滤床对某制药厂浓度范围在0.02~2g/m³的二氯甲烷废气进行了为期132天的中试规模实验。在适宜的停留时间、温度、喷淋量和pH等实验条件下，控制适当的进气浓度可得到高效去除效率并且废气出口浓度达标。实验揭示了生物膜内生物降解是过程的限制因素，结果表明，在喷淋量为1200L/h、进气浓度范围为0.45~0.65g/m³时该生物系统去除效率最高可达98.9%，最大去除负荷可达EC_max=155.25g/(m³·h)。随着进气浓度的增加，去除负荷随之增大，而去除效率下降，废气出口浓度超标，表明生物滴滤系统已处于反应控制。此外，间歇实验表明，该生物系统具有良好的稳定性。指出生物滴滤床的设计、运行取决于当地的二氯甲烷废气排放标准。

关键词: 生物膜, 代谢, 环境, 二氯甲烷, 去除效率, 去除负荷

Abstract:

Dichloromethane as a solvent has been widely used in the pharmaceutical industry. But the emitted waste gas containing dichloromethane is harmful to both human health and atmospheric environment. In this paper, a 132-day pilot scale experiment was carried out for the removal of dichloromethane from waste gas with the concentration range of 0.02~2g/m³ in a pharmaceutical factory using a biological trickling filter. The removal efficiency of dichloromethane from waste gas can reach the highest by controlling the appropriate intake concentration and the outlet concentration of dichloromethane in waste gas meets emission standard under the optimum operating conditions, including residence time, temperature, spray volume and pH. The biodegradation in the biofilm is the limiting step in the process. The experimental results show that when the spray volume is 1200L/h and the inlet concentration range is 0.45—0.65g/m³, the maximum removal efficiency and maximum removal load of the biological system can reach 98.9% and 155.25g/(m³·h), respectively. With the increase of inlet gas concentration, the removal load increases, while the removal efficiency decreases and the outlet concentration of dichloromethane in waste gas exceeds the standard, which indicates that biological trickling system belongs to reaction control. The intermittent operation shows that the biological system has good stability. The design and operation of the biological trickle filter depend on the local standards for dichloromethane emission.

Key words: biofilm, metabolism, environment, dichloromethane, removal efficiency, remove load

中图分类号:

TQ460.9

李春利, 安乐, 李浩, 李彤, 齐颖, 程永辉. 生物滴滤床法降解二氯甲烷废气的因素影响特征[J]. 化工进展, 2020, 39(11): 4625-4631.

Chunli LI, Le AN, Hao LI, Tong LI, Ying QI, Yonghui CHENG. Influence character of factors for the removal of dichloromethane from waste gases using a biotrickling filter[J]. Chemical Industry and Engineering Progress, 2020, 39(11): 4625-4631.

参考文献

1	李丽. VOC废气治理工程技术方案探究[J]. 低碳世界, 2017, 27(21): 17-18.
1	LI L. Research on technical scheme of VOC waste gas treatment engineering[J]. Low Carbon World, 2017, 27 (21): 17-18.
2	BOUCHRA B, YANN L M, ERIC F. Energy efficiency of a hybrid membrane/condensation process for VOC (volatile organic compounds) recovery from air: A generic approach[J]. Energy, 2016, 95: 291-302.
3	ZHANG X, GAO B, ZHENG Y, et al. Biochar for volatile organic compound (VOC) removal: sorption performance and governing mechanisms[J]. Bioresource Technology, 2017, 245: 606-614.
4	AN Y X, FU Q, ZHANG D H, et al. Performance evaluation of activated carbon with different pore sizes and functional groups for VOC adsorption by molecular simulation[J]. Chemosphere, 2019, 227: 9-16.
5	LI Q, DING W C, YONG Y, et al. Adsorption performance and mechanism of biochars for gaseous VOCs[J]. Harbin Institute of Technology, 2017, 49: 77-84.
6	ALFREDO-SANTIAGO R, PIERRE-FRANCOIS B, LUDOVIC P, et al. Assessment of VOC absorption in hydropHobic ionic liquids: measurement of partition and diffusion coefficients and simulation of a packed column[J]. Chemical Engineering Journal, 2019, 360: 1416-1426.
7	HE C, CHENG J, ZHANG X, et al. Recent advances in the catalytic oxidation of volatile organic compounds: a review based on pollutant sorts and sources[J]. Chemical Reviews, 2019, 119(7): 4471-4568.
8	LI C L, ZHAO Y X, SONG H, et al. A review on recent advances in catalytic combustion of chlorinated volatile organic compounds[J]. Journal of Chemical Technology & Biotechnology, 2020.
9	ZOU W X, GAO B, DONG L, et al. Integrated adsorption and photocatalytic degradation of volatile organic compounds (VOCs) using carbon-based nanocomposites: a critical review[J]. Chemosphere, 2019, 218: 845-859.
10	MARíA D L M Bi, MARíA L S, ALFANO O M. Photocatalytic reactor modeling: application to advanced oxidation processes for chemical pollution abatement[J]. Topics in Current Chemistry, 2019, 377(5): 22.
11	BEIEGI B H M, THORPE R B, OUKI S, et al. Hydrogen sulphide and VOC removal in biotrickling filters: comparison of data from a full-scale, low-emission unit with kinetic models[J]. Chemical Engineering Science, 2019, 208: 115033.
12	DAMIAN K, KRZYSZTOF U, KRZYSZTOF B, et al. Application of a compact trickle-bed bioreactor for the removal of odor and volatile organic compounds emitted from a wastewater treatment plant[J]. Journal of Environmental Management, 2019, 236: 413-419.
13	SUN S H, JIA T P, CHEN K Q, et al. Simultaneous removal of hydrogen sulfide and volatile organic sulfur compounds in off-gas mixture from a wastewater treatment plant using a two-stage bio-trickling filter system[J]. Frontiers of Environmental Science & Engineering, 2019, 13(4): 1-13.
14	黄桂凤, 黄立维. 溶液吸收结合铁碳微电解法降解模拟废气中二氯甲烷[J]. 化工学报, 2014, 65(9): 3599-3603.
14	HUANG G F, HUANG L W.Degradation of methylene chloride in simulated exhaust gas by solution absorption combined with iron-carbon microelectrolysis[J]. CIESC Journal, 2014, 65(9): 3599-3603.
15	WU H, YAN H Y, QUAN Y, et al. Recent progress and perspectives in biotrickling filters for VOCs and odorous gases treatment[J]. Journal of Environmental Management, 2018, 222: 409-419.
16	MALAKAR S, SAHA P D, BASKARAN D, et al. Comparative study of biofiltration process for treatment of VOCs emission from petroleum refinery wastewater: a review[J]. Environmental Technology & Innovation, 2017, 8: 441-461.
17	KIRCHNER K, SCHLACHTER U, REHM H J. Biological purification of exhaust air using fixed bacterial monocultures[J]. Applied Microbiology & Biotechnology, 1989, 31(5/6): 629-632.
18	YU J M, CHEN J M, WANG J D. Removal of dichloromethane from waste gases by a biotrickling filter[J]. Environmental Sciences, 2006, 18(6): 1073-1076.
19	ATSUKO A, HAMAMOTO H, OKANO T. Use of lees materials as an adsorbent for removal of organochlorine compounds or benzene from wastewater[J]. Chemosphere, 2005, 58(6): 817-822.
20	LI T, LI H, LI C L.A review and perspective of recent research in biological treatment applied in removal of chlorinated volatile organic compounds from waste air[J]. Chemosphere, 2020, 250: 126338.
21	钟帼瑛. 化工行业VOC废气治理探讨[J]. 资源节约与环保, 2018, 200 (7): 89-90.
21	ZHONG G Y. Discussion on VOC waste gas treatment in chemical industry [J]. Resources Economization & Environment Protection, 2018, 200 (7): 89-90.
22	BRUNNER W, STAUB D, LEISINGER T. Bacterial degradation of dichloromethane[J]. Appl. Environ. Microbiol., 1980, 40(5): 950-958.
23	TOUROVA T P, KUZNETSOV B B, DORONINA N V, et al. Phylogenetic analysis of dichloromethane-utilizing aerobic methylotrophic bacteria[J]. Microbiology, 2001, 70(1): 79-83.
24	庄庆丰, 章晶晓, 倪建国, 等. 二氯甲烷的生物降解技术进展[J]. 科技通报, 2012, 28(1): 178-183.
24	ZHUANG Q F, ZHANG J X, NI J G, et al.Progress in biodegradation technology of dichloromethane[J]. Bulletin of Science and Technology, 2012, 28(1): 178-183.
25	YANG C P, CHEN H, ZENG G M, et al. Biomass accumulation and control strategies in gas biofiltration[J]. Biotechnology Advances, 2010, 28(4): 531-540.
26	DIKS R, OTTENGRAF S. Verification studies of a simplified model for the removal of dichloromethane from waste gases using a biological trickling filter (Part Ⅰ)[J]. Bioprocess Engineering, 1991, 6(3): 93-99.
27	MORALES M, HERNMáNDEZ S, COMABé T, et al. Effect of drying on biofilter performance: modeling and experimental approach[J]. Environmental Science & Technology, 2003, 37(5): 985.
28	MYSLIWIEC M J, VANDERGHEYNST J S, RASHID M M, et al. Dynamic volume-averaged model of heat and mass transport within a compost biofilter: Ⅰ. Model development[J]. Biotechnology & Bioengineering, 2001, 73(4): 282-294.
29	ACHINTA B, PETER A, GOSTOMSKI. Fate of degraded pollutants in waste gas biofiltration: an overview of carbon end-points[J]. Biotechnology Advances, 2019, 37(4): 579-588.
30	HENDY L, CINDY G, BETTINA R, et al. Challenges to developing methane biofiltration for coal mine ventilation air: a review[J]. Water Air & Soil Pollution, 2013, 224(6): 1-15.
31	OTTENGRAF S S. Biological systems for waste gas elimination[J]. Trends in Biotechnology, 1987, 5(5): 132-136.

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