剩余污泥微波-淘洗及零价铁强化发酵性能

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Abstract In order to solve the problems of low dissolution rate of carbon source and low availability of released carbon source of waste activated sludge (WAS) with high solid content in microwave pretreatment, the method of elutriation was adopted, and zero valent iron (ZVI) was added to the mixture and supernatant of elutriated sludge for anaerobic fermentation to enhance the availability of carbon source. The results showed that elutriation significantly improved the carbon dissolution rate of microwave-pretreated WAS with high solid content (TS=11%~17%). Compared with non-elutriaton, the dissolution rate of carbon source of elutriating with water and alkali increased by 13%~68% and 146%~308% respectively. The addition of ZVI not only significantly improved the dissolution rate of volatile fatty acids (VFAs), but also transformed macromolecular carbon sources into low molecular carbon sources such as acetic acid and propionic acid. In the mixture, supernatant and ZVI fermentation, the dissolving-out amount of VFAs was 317and 354mg/g VSS respectively, which were 30 times higher than that in the microwave-pretreated WAS. After adding ZVI, the proportion of propionic acid, acetic acid and butyric acid respectively increased to 34%, 26% and 18% in the mixture, and 39%, 27% and 20% in the supernatant, which enhanced the utilization value of carbon source in WAS. The research showed that microwave-elutriation pretreatment combined with ZVI anaerobic fermentation technology could effectively improve the dissolution rate of efficient carbon source in WAS, which provided a new idea for the transformation of carbon source in WAS.

Key words： microwave pretreatment elutriation sludge high solid content zero valent iron carbon source

Received: 12 August 2020

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X703

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	Articles by authors
	LI Xin-chen
	HE Ze-yuan
	JI Fang-ying
	DING Shi-lin
	MAO Yuan-xiang
	FANG De-xin
	ZENG Yan-ting

Cite this article:

LI Xin-chen,HE Ze-yuan,JI Fang-ying等. Microwave-elutriation pretreatment and zero valent iron enhanced fermentation performance of waste activated sludge[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(4): 1608-1614.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I4/1608

[1]	Serrano A, Siles J A, Martín M A, et al. Improvement of anaerobic digestion of sewage sludge through microwave pre-treatment[J]. Journal of Environmental Management, 2016,177:231-239.
[2]	Bastiaens B, Van den Broeck R, Appels L, et al. Evaluation of the effects of low energetic microwave irradiation on anaerobic digestion[J]. Journal of Environmental Management, 2017,202:69-83.
[3]	Bohdziewicz J, Kuglarz M, Grubel K. Influence of microwave pre-treatment on the digestion and higienisation of waste activated sludge[J]. Ecological Chemistry and Engineering S, 2014,21(3):447-464.
[4]	刘红燕,周爱娟,刘芝宏,等.硫酸根自由基预处理剩余污泥产酸效能与机理[J]. 中国环境科学, 2020,40(4):1594-1600. Liu H Y, Zhou A J, Liu Z H, et al. Performance and mechanism of short-chain fatty acids productionfrom waste activated sludgefermentationelevating by sulfate radical pretreatment[J]. China Environmental Science, 2020,40(4):1594-1600.
[5]	Liu X, Xu Q, Wang D, et al. Microwave pretreatment of polyacrylamide flocculated waste activated sludge:Effect on anaerobic digestion and polyacrylamide degradation[J]. Bioresource Technology, 2019,290:121776.
[6]	Bundhoo Z M A. Microwave-assisted conversion of biomass and waste materials to biofuels[J]. Renewable and Sustainable Energy Reviews, 2018,82:1149-1177.
[7]	刘吉宝,倪晓棠,魏源送,等.微波及其组合工艺强化污泥厌氧消化研究[J]. 环境科学, 2014,35(9):3455-3460. Liu J B, Ni X T, Wei Y S, et al. Enhancement for anaerobic digestion of sewage sludge pretreated by microwave and its combined Processes[J]. Environmental Science, 2014,35(9):3455-3460.
[8]	徐慧敏,秦卫华,李中林,等.超声联合热碱破解高含固污泥的理化性质变化[J]. 生态与农村环境学报, 2018,34(5)469-473. Xu H M, Qin W Z, Li Z L, et al. Characteristics of high solid sludge during simultaneous pretreatment with ultrasonic and thermo-chemical[J]. Journal of Ecology and Rural Environment, 2018,34(5):469-473.
[9]	李忱忱.碱处理强化低有机质污泥厌氧消化的性能及条件优化[D]. 北京:清华大学, 2014. Li C C. Characteristic and optimization of the improvement of sludge anaerobic digestion by alkaline treatment[D]. Beijing:Tsinghua University, 2014.
[10]	马俊伟,曹芮,周刚,等.浓度对高固体污泥热水解特性及流动性的影响[J]. 环境科学, 2010,31(7):1583-1589. Ma J W, Cao R, Zhou G, et al. Effect of solid content on thermal hydrolysis characteristics and flowability of high solid content sewage sludge[J]. Environmental Science, 2010,31(7):1583-1589.
[11]	李秀芳.基于机械淘洗的活性初沉池碳源转化与回收评价[J]. 中国给水排水, 2016,32(17):11-16. Li X F. Assessment of carbon source conversion and recovery in activated primary tank with mechanical elutriation[J]. China Water & Wastewater, 2016,32(17):11-16.
[12]	Liu Y, Zhang Y, Quan X, et al. Optimization of anaerobic acidogenesis by adding Fe0 powder to enhance anaerobic wastewater treatment[J]. Chemical Engineering Journal, 2012,192:179-185.
[13]	Feng Y, Zhang Y, Quan X, et al. Enhanced anaerobic digestion of waste activated sludge digestion by the addition of zero valent iron[J]. Water Research, 2014,52:242-250.
[14]	Liu, Y, Wang Q, Zhang Y, et al. Zero valent iron significantly enhances methane production from waste activated sludge by improving biochemical methane potential rather than hydrolysis rate[J]. Scientific Reports, 2015,5:8263.
[15]	Wei W, Cai Z, Fu J, et al. Zero valent iron enhances methane production from primary sludge in anaerobic digestion[J]. Chemical Engineering Journal, 2018,351:1159-1165.
[16]	Zhao Z, Zhang Y, Li Y, et al. Comparing the mechanisms of ZVI and Fe3O4 for promoting waste-activated sludge digestion[J]. Water Research, 2018,144:126-133.
[17]	国家环境保护总局.水和废水监测分析方法(第四版)[M]. 北京:中国环境科学出版社, 2002:105-281. State Environmental Protection Administration. Monitoring and analysis methods of water and wastewater (Fourth Edition)[M]. Beijing:China Environmental Science Press, 2002:105-281.
[18]	吉芳英,杨琴,罗固源.实验室自配HACH-COD替代试剂研究[J]. 给水排水, 2003,29(1):17-20. Ji F Y, Yang Q, Luo G Y. Laboratory prepared substitutes for HACH-COD meter[J]. Water&Wastewater Engineering, 2003,29(1):17-20.
[19]	DuBois M, Gilles K A, Hamilton J K, et al. Colorimetric method for determination of sugars and related substances[J]. Analytical Chemistry Analytical Chemistry, 1956,28(3):350-356.
[20]	Lowry O H, Rosebrough N J, Farr A L, et al. Protein measurement with the folin phenol reagent[J]. Journal of Biological Chemistry, 1951,193(1):265-275.
[21]	高永青,彭永臻,王建龙,等.剩余污泥水解酸化过程中胞外聚合物的影响因素研究[J]. 中国环境科学, 2010,30(1):58-63. Gao Y Q, Peng Y Z, Wang J L, et al. Influencial factors of extracellular polymer substances in activated sludge hydrolysis and acidification[J]. China Environmental Science, 2010,30(1):58-63.
[22]	Xu X, Wang W, Chen C, et al. Bioelectrochemical system for the enhancement of methane production by anaerobic digestion of alkaline pretreated sludge[J]. Bioresource Technology, 2020,304:123000.
[23]	Cordova Lizama A, Carrera Figueiras C, Alzate Gaviria L, et al. Nanoferrosonication:A novel strategy for intensifying the methanogenic process in sewage sludge[J]. Bioresource Technology, 2019,276:318-324.
[24]	Wei J, Hao X, van Loosdrecht M C M, et al. Feasibility analysis of anaerobic digestion of excess sludge enhanced by iron:A review[J]. Renewable and Sustainable Energy Reviews, 2018,89:16-26.
[25]	Zhen G, Lu X, Li Y, et al. Influence of zero valent scrap iron (ZVSI) supply on methane production from waste activated sludge[J]. Chemical Engineering Journal, 2015,263:461-470.
[26]	Wu D, Zheng S, Ding A, et al. Performance of a zero valent iron-based anaerobic system in swine wastewater treatment[J]. Journal of Hazardous Materials, 2015,286:1-6.
[27]	Yang Y, Guo J, Hu Z. Impact of nano zero valent iron (NZVI) on methanogenic activity and population dynamics in anaerobic digestion[J]. Water Research, 2013,47(17):6790-6800.
[28]	Zhang Y, Yang Z, Xu R, et al. Enhanced mesophilic anaerobic digestion of waste sludge with the iron nanoparticles addition and kinetic analysis[J]. Science of the Total Environment, 2019,683:124-133.
[29]	郭思宇,彭永臻,李夕耀,等.热处理对剩余污泥中温厌氧消化的影响[J]. 中国环境科学, 2017,37(6):2106-2113. Guo S Y, Peng Y Z, Li X Y, et al. Effect of thermal hydrolysis pretreatment on mesophilic anaerobic digestion of excess sludge[J]. China Environmental Science, 2017,37(6):2106-2113.
[30]	冯应鸿.零价铁强化剩余污泥厌氧消化的研究[D]. 大连:大连理工大学, 2014. Feng Y H. Research of enhanced anaerobic digestion of waste activated sludge by addition of zero valent iron[D]. Dalian:Dalian University of Technology, 2014.
[31]	Zhou J, You X, Niu B, et al. Enhancement of methanogenic activity in anaerobic digestion of high solids sludge by nano zero-valent iron[J]. Science of the Total Environment, 2020,703:135532.
[32]	邢立群,彭永臻,金宝丹,等.盐度强化剩余污泥碱性发酵产酸[J]. 中国环境科学, 2015,35(6):1771-1779. Xing L Q, Peng Y Z, Jin B D, et al. Enhanced production of short-chain fatty acids from waste activated sludge alkaline fermentation:The effect of sa-linity[J]. China Environmental Science, 2015,35(6):1771-1779.
[33]	Ahn Y H, Speece R E. Elutriated acid fermentation of municipal primary sludge[J]. Water Research, 2006,40(11):2210-2220.
[34]	贾瑞来,魏源送,刘吉宝.基于微波-过氧化氢-碱预处理的污泥水解影响因素[J]. 环境科学, 2015,36(6):2222-2231. Ji R L, Wei Y S, Li J B. Influencing factors for hydrolysis of sewage sludge pretreated by microwave-H2O2-alkaline process[J]. Environmental Science, 2015,36(6):2222-2231.
[35]	牛雨彤,刘吉宝,马爽,等.零价铁和微波预处理组合强化污泥厌氧消化[J]. 环境科学, 2019,40(3):1431-1438. Niu Y T, Li J B, Ma S, et al. Enhancement for anaerobic digestion of waste activated sludge based on microwave pretreatment combined with zero valent iron[J]. Environmental Science, 2019,40(3):1431-1438.
[36]	Li Y, Chen Y, Wu J. Enhancement of methane production in anaerobic digestion process:A review[J]. Applied Energy, 2019,240:120-137.
[37]	Van Den Berg L, Lamb K A, Murray W D, et al. Effects of Sulphate, Iron and Hydrogen on the Microbiological Conversion of Acetic Acid to Methane[J]. Journal of Applied Bacteriology, 1980,48(3):437-447.
[38]	Chen Y, Randall A A, McCue T. The efficiency of enhanced biological phosphorus removal from real wastewater affected by different ratios of acetic to propionic acid[J]. Water Research, 2004,38(1):27-36.