废铁屑协同曝气去除污水硫化物效能及机制

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Abstract The iron-oxygen-sulfide control system was constructed by the synergistic aeration technology through the processing of industrial scrap irons into the wastewater. The scrap irons were used to enhance the oxidation process of sulfide by oxygen to improve the inefficiency of traditional aeration and oxygenation to control sulfide in the water phase. A simulated wastewater pipeline reactor was constructed, and the iron-oxygen system composed of scrap iron filings and dissolved oxygen was evaluated for the control of sulfide by regulating the amount of scrap iron filings and the pH value of wastewater. The iron-oxygen system was compared with the direct catalytic oxygen oxidation process of Fe²⁺ and Fe³⁺, and its sulfide control mechanism was explored by the first-order rate equation of total sulfide concentration, and the effectiveness of the iron-oxygen system for the long-term control of sulfide was verified in a continuous flow reactor. The results showed that the sulfide in the wastewater could be removed nearly 100% within 10min when the dosage of scrap iron filings was above 40g/L, and the increase in pH of the wastewater was favorable to the removal of sulfide. In a 30 day continuous flow test, the sulfide concentration was below the detection limit at a gas-to-water ratio of (2 + 1.25)% iron filings, and the average H₂S concentration in the gas-phase space of the reactor was maintained at 20.5×10^-6.

Key words： sewage pipes scrap iron aeration hydrogen sulfide treating waste with waste

Received: 15 March 2024

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X703.5

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	ZHAO Hang
	ZHANG Zhi-qiang
	JIN Feng
	LU Jin-suo

Cite this article:

ZHAO Hang,ZHANG Zhi-qiang,JIN Feng等. Efficacy of sewage sulfide removal by co-aeration of scrap iron filings[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(11): 6148-6155.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I11/6148

[1] Sun Y, Ter Heijne A, Rijnaarts H, et al. The effect of anode potential on electrogenesis, methanogenesis and sulfidogenesis in a simulated sewer condition [J]. Water Research, 2022,226.DOI:10.1016/j.watres. 2022.119229.
[2] Cao J, Zhang L, Hong J, et al. Different ferric dosing strategies could result in different control mechanisms of sulfide and methane production in sediments of gravity sewers [J]. Water Research, 2019, 164. DOI: 10.1016/j.watres.2019.114914.
[3] 韩剑霜,石烜,张建锋,等.污水管道沉积物分层冲刷的起动规律及其污染贡献特性 [J]. 中国环境科学, 2023,43(10):5208-5213. Han J S, Shi X, Zhang J F, et al. Starting rule and pollution contribution characteristics of sediment layer erosion in sewage pipes [J]. China Environmental Science, 2023,43(10):5208-5213.
[4] Jiang G, Melder D, Keller J, et al. Odor emissions from domestic wastewater: A review [J]. Critical Reviews in Environmental Science and Technology, 2017,47(17):1581-1611.
[5] Gao Y, Shi X, Jin X, et al. A critical review of wastewater quality variation and in-sewer processes during conveyance in sewer systems [J]. Water Research, 2023,228. DOI:10.1016/j.watres.2022.119398.
[6] 焦玲洁,李咏梅,魏海娟,等.投加铁及其化合物控制污泥厌氧消化挥发性硫化物机理研究进展 [J]. 中国环境科学, 2023,43(7):3454-3463. Jiao L J, Li Y M, Wei H J, et al. Research progress on the mechanism of controlling volatile sulfides in anaerobic digestion of sludge by adding iron and its compounds [J]. China Environmental Science, 2023,43(7):3454-3463.
[7] Gutierrez O, Mohanakrishnan J, Sharma K R, et al. Evaluation of oxygen injection as a means of controlling sulfide production in a sewer system [J]. Water Research, 2008,42(17):4549-4561.
[8] Zhang Z, Chang N, Wang S, et al. Enhancing sulfide mitigation via the sustainable supply of oxygen from air-nanobubbles in gravity sewers [J]. Science of The Total Environment, 2022,808.DOI:10.1016/j.scitotenv.2021.152203.
[9] 刘伟,石烜,徐栋伟,等.流速对污水管道中甲烷与硫化物生成的影响 [J]. 中国环境科学, 2023,43(6):2938-2947. Liu W, Shi X, Xu D W, et al. Influence of flow velocity on methane and sulfide generation in sewage pipes [J]. China Environmental Science, 2023,43(6):2938-2947.
[10] 张团结,武晨,刘艳臣,等.曝气充氧对排水管网液相硫化物累积影响研究 [J]. 中国环境科学, 2013,33(11):1953-1957. Zhang T J, Wu C, Liu Y C, et al. Effect of aeration on liquid sulfide accumulation in drainage pipe network [J]. China Environmental Science, 2013,33(11):1953-1957.
[11] Jiang G, Sharma K R, Yuan Z. Effects of nitrate dosing on methanogenic activity in a sulfide-producing sewer biofilm reactor [J]. Water Research, 2013,47(5):1783-1792.
[12] Haveman S A, Greene E A, Voordouw G. Gene expression analysis of the mechanism of inhibition of Desulfovibrio vulgaris Hildenborough by nitrate-reducing, sulfide-oxidizing bacteria [J]. Environmental Microbiology, 2005,7(9):1461-1465.
[13] Liang S, Zhang L, Jiang F. Indirect sulfur reduction via polysulfide contributes to serious odor problem in a sewer receiving nitrate dosage [J]. Water Research, 2016,100:421-428.
[14] Chen G H, Qian J, Peng G L, et al. Nitrogen removal capacity of simultaneously autotrophic and heterotrophic denitrification in a sewer receiving nitrified source-separated urine [J]. Water Practice and Technology, 2013,8(1):33-40.
[15] Ganigue R, Gutierrez O, Rootsey R, et al. Chemical dosing for sulfide control in Australia: An industry survey [J]. Water Research, 2011, 45(19):6564-6574.
[16] Gutierrez O, Park D, Sharma K R, et al. Effects of long-term pH elevation on the sulfate-reducing and methanogenic activities of anaerobic sewer biofilms [J]. Water Research, 2009,43(9):2549-2557.
[17] Gutierrez O, Sudarjanto G, Ren G, et al. Assessment of pH shock as a method for controlling sulfide and methane formation in pressure main sewer systems [J]. Water Research, 2014,48:569-578.
[18] Sharma K, Derlon N, Hu S, et al. Modeling the pH effect on sulfidogenesis in anaerobic sewer biofilm [J]. Water Research, 2014, 49:175-185.
[19] Yan X, Sun J, Wang Y, et al. Low-rate ferrate dosing damages the microbial biofilm structure through humic substances destruction and facilitates the sewer biofilm control [J]. Water Research, 2023,235. DOI:10.1016/j.watres.2023.119834.
[20] Yan X, Sun J, Kenjiahan A, et al. Rapid and strong biocidal effect of ferrate on sulfidogenic and methanogenic sewer biofilms [J]. Water Research, 2020,169. DOI:10.1016/j.watres.2019.115208.
[21] Duan H, Gao S, Li X, et al. Improving wastewater management using free nitrous acid (FNA) [J]. Water Research, 2020,171. DOI: 10.1016/j.watres.2019.115382.
[22] Lin H-W, Kustermans C, Vaiopoulou E, et al. Electrochemical oxidation of iron and alkalinity generation for efficient sulfide control in sewers [J]. Water Research, 2017,118:114-120.
[23] Li S, Wang W, Liu Y, et al. Zero-valent iron nanoparticles (nZVI) for the treatment of smelting wastewater: A pilot-scale demonstration [J]. Chemical Engineering Journal, 2014,254:115-123.
[24] Liu S, Guo H, Wang Y, et al. Peracetic acid activated by ferrous ion mitigates sulfide and methane production in rising main sewers [J]. Water Research, 2023,245. DOI: 10.1016/j.watres.2023.120584.
[25] Chen G H, Leung D H W, Huang J C. Removal of dissolved organic carbon in sanitary gravity sewer [J]. Journal of Environmental Engineering, 2001,4(127):295-301.
[26] 金鹏康,郝晓宇,王宝宝,等.城市污水管网中水质变化特性 [J]. 环境工程学报, 2015,9(3):1009-1014. Jin P K, Hao X Y, Wang B B, et al. Characteristics of water quality change in urban sewage network [J]. Chinese Journal of Environmental Engineering, 2015,9(3):1009-1014.
[27] Girguis P R, Beinart R A, Hanson T E, et al. Thermodynamics and kinetics of sulfide oxidation by oxygen: A look at inorganically controlled reactions and biologically mediated processes in the environment [J]. Frontiers in Microbiology, 2011,2.DOI:10.3389/fmicb.2011.00062.
[28] Nielsen, Haaning A, Hvitved-Jacobsen T, et al. Effects of Iron on Chemical Sulfide Oxidation in Wastewater from Sewer Network [J]. Journal of Environmental Engineering, 2007,133(6):655-658.
[29] Kleinjan W E, Keizer A D, Janssen A J H. Kinetics of the chemical oxidation of polysulfide anions in aqueous solution [J]. Water Research, 2005,39(17):4093-4100.
[30] Nielsen A H, Vollertsen J, Hvitved-Jacobsen T. Determination of Kinetics and Stoichiometry of Chemical Sulfide Oxidation in Wastewater of Sewer Networks [J]. Environmental Science & Technology, 2003,37(17):3853-3858.
[31] 廖波,籍国东,程李秋.含烃废水中硫化物生物氧化的影响因素 [J]. 北京大学学报(自然科学版), 2008,6:958-964. Liao B, Ji G D, Cheng L Q. Factors affecting biological oxidation of sulfides in hydrocarbon-containing wastewater [J]. Journal of Peking University (Natural Science), 2008,6:958-964.