活化方式对过硫酸盐强化剩余污泥发酵的影响

樊雅欣; 刘红燕; 潘凌峰; 周爱娟; 岳秀萍

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中国环境科学 ›› 2019, Vol. 39 ›› Issue (6) : 2460-2466.

固体废物

活化方式对过硫酸盐强化剩余污泥发酵的影响

樊雅欣¹, 刘红燕¹, 潘凌峰¹, 周爱娟^1,2, 岳秀萍¹

作者信息 +

Enhancement of waste activated sludge acidification by persulfate: Role of activation methods

FAN Ya-xin¹, LIU Hong-yan¹, PAN Ling-feng¹, ZHOU Ai-juan^1,2, YUE Xiu-ping¹

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摘要

对比考察了二价铁（Fe²⁺）、零价铁（ZVI）、超声波（US）3种活化方式对过硫酸盐（S₂O₈^2-）预处理剩余污泥的溶胞性能，并研究其对污泥厌氧发酵产酸进程的促进效能.结果表明，相对比未预处理污泥，S₂O₈^2-能够明显促进剩余污泥溶胞和发酵产酸进程；同时，活化后的S₂O₈^2-预处理效果明显优于未活化预处理实验组，其中S₂O₈^2-+Fe²⁺预处理体系的促进作用最为明显.Fe²⁺、ZVI和US活化S₂O₈^2-的3组溶胞率分别为42.6%、36.5%和32.9%，相比未活化实验组（22.3%）提高了10.6%～20.3%；3组活化体系最大挥发酸浓度分别为8052，6613，4996mg COD/L，而未活化组仅为3296mg COD/L.此外，不同方式活化S₂O₈^2-预处理对溶解性有机物溶出及挥发酸组分分布也有一定影响.从环境和经济角度来看，S₂O₈^2-+Fe²⁺体系对促进污泥发酵进程具有更大意义.

Abstract

Persulfate (S₂O₈^2-) and its activations were investigated, including ferrous (Fe²⁺), zero-valent iron (ZVI) and ultrasonic (US), on waste activated sludge (WAS) disintegration and acidification. Experimental results showed that S₂O₈^2- effectively disintegrated WAS flocs matrix and further enhanced short-chain fatty acids (SCFAs) production, compared with that obtained from un-pretreated WAS. In addition, activated S₂O₈^2- presented better WAS hydrolysis and acidification performance over un-activated S₂O₈^2- test. The lysis rates of Fe²⁺, ZVI and US activated S₂O₈^2- groups reached to 42.6%, 36.5% and 32.9%, respectively, which were about 10.6%~20.3% higher than that obtained in the non-activated test (22.3%). The maximum SCFAs concentration in the aforementioned three activated tests were 8052, 6613, 4996mg COD/L, respectively, while that was only 3296mg COD/L in non-activated test. Furthermore, the release of organics and the distribution of generated SCFAs were also affected by S₂O₈^2- activations. From the environmental and economic perspective, the S₂O₈^2-+Fe²⁺ system played more significant role for enhancing the SCFAs recovery from WAS fermentation.

导出引用

樊雅欣, 刘红燕, 潘凌峰, 周爱娟, 岳秀萍. 活化方式对过硫酸盐强化剩余污泥发酵的影响[J]. 中国环境科学. 2019, 39(6): 2460-2466

FAN Ya-xin, LIU Hong-yan, PAN Ling-feng, ZHOU Ai-juan, YUE Xiu-ping. Enhancement of waste activated sludge acidification by persulfate: Role of activation methods[J]. China Environmental Science. 2019, 39(6): 2460-2466

中图分类号： X705

参考文献

[1] Park B, Ahn J H, Kim J, et al. Use of microwave pretreatment for enhanced anaerobiosis of secondary sludge[J]. Water Science and Technology, 2004,50(9):17-23.
[2] Eastman J A, Ferguson J F. Solubilization of Particulate Organic Carbon during the Acid Phase of Anaerobic Digestion[J]. Water Pollution Control Federation, 1981,53(3):352-366.
[3] 周爱娟.预处理促进剩余污泥发酵制取短链脂肪酸的效能及机制研究[D]. 哈尔滨:哈尔滨工业大学, 2014.Zhou A J. Short-chain fatty acids production from waste activated sludge ermentation stimulated by pretreatments[D]. Harbin:Harbin Institute of Technology, 2014.
[4] Zhou A, Luo H, Varrone C, et al. Enhanced anaerobic digestibility of waste activated sludge by plant-derived biosurfactant[J]. Process Biochemistry, 2015,47(9):1413-1421.
[5] Ruiz-Hernando M, Cabanillas E, Labanda J, et al. Ultrasound, thermal and alkali treatments affect extracellular polymeric substances (EPSs) and improve waste activated sludge dewatering[J]. Process Biochemistry, 2015,50(3):438-446.
[6] Yu Q, Jin X, Zhang Y. Sequential pretreatment for cell disintegration of municipal sludge in a neutral Bio-electro-Fenton system[J]. Water Research, 2018,135:44-56.
[7] Shi Y, Yang J, Yu W, et al. Synergetic conditioning of sewage sludge via Fe²⁺/persulfate and skeleton builder:Effect on sludge characteristics and dewaterability[J]. Chemical Engineering Journal, 2015,270:572-581.
[8] Zhou X, Wang Q, Jiang G, et al. A novel conditioning process for enhancing dewaterability of waste activated sludge by combination of zero-valent iron and persulfate[J]. Bioresource Technology, 2015,185:416-420.
[9] 徐文迪,常沙,明铁山,等.基于硫酸根自由基(SO₄^-·)的污泥预处理技术[J]. 环境工程学报, 2018,12(5):1528-1535.Xu W D, Chang S, Ming T S, et al. Pretreatment technology of sewage of sludge with sulfate radical (SO₄^-·)[J]. Chinese Journal of Environmental Engineering, 2018,12(5):1528-1535.
[10] Neta P, Madhavan V, Zemel H, et al. Rate constants and mechanism of reaction of sulfate radical anion with aromatic compounds[J]. Journal of the American Chemical Society, 1977,99(1):163-164.
[11] 刘昌庚,伍斌,谢四才.Fe(Ⅱ)活化过一硫酸盐氧化调理剩余活性污泥[J]. 中国环境科学, 2017,37(10):3794-3799.Liu C G, Wu B, Xie S C. Conditioning of excess activate sludge by Fe(Ⅱ)-activated peroxymonosulfate oxidation[J]. China Environmental Science, 2017,37(10):3794-3799.
[12] Ren W, Zhou Z, Zhu Y, et al. Effect of sulfate radical oxidation on disintegration of waste activated sludge[J]. International Biodeterioration & Biodegradation, 2015,104:384-390.
[13] Shi P, Su R, Wan F, et al. Co₃O₄ nanocrystals on graphene oxide as a synergistic catalyst for degradation of Orange Ⅱ in water by advanced oxidation technology based on sulfate radicals[J]. Applied Catalysis B Environmental, 2012,123-124(12):265-272.
[14] Zhen G, Lu X, Zhao Y, et al. Enhanced dewaterability of sewage sludge in the presence of Fe(Ⅱ)-activated persulfate oxidation[J]. Bioresource Technology, 2012,116(4):259-265.
[15] Shi Y, Yang J, Liang S, et al. Principal component analysis on sewage sludge characteristics and its implication to dewatering performance with Fe²⁺/persulfate-skeleton builder conditioning[J]. International Journal of Environmental Science and Technology, 2016,13(9):2283-2292.
[16] Song K, Zhou X, Liu Y, et al. Improving dewaterability of anaerobically digested sludge by combination of persulfate and zero valent iron[J]. Chemical Engineering Journal, 2016,295:436-442.
[17] Zhen G, Lu X, Su L, et al. Unraveling the catalyzing behaviors of different iron species (Fe²⁺ vs. Fe⁰) in activating persulfate-based oxidation process with implications to waste activated sludge dewaterability[J]. Water Research, 2018,134:101-114.
[18] Zhen G, Lu X, Wang B, et al. Synergetic pretreatment of waste activated sludge by Fe(Ⅱ)-activated persulfate oxidation under mild temperature for enhanced dewaterability[J]. Bioresource Technology, 2012,124(9):29-36.
[19] 周宁.超声/过硫酸盐法去除水中卡马西平及腐殖酸的研究[D]. 武汉:华中科技大学, 2015.Zhou N. Study on the degradation of carbamazepine and humic acid in water using ultrasonic combined with persulfate method[D]. Wuhan:Huazhong University of Science and Technology, 2015.
[20] 刘佳露,卢伟,张凤君,等.活化过硫酸盐氧化地下水中苯酚的动力学研究[J]. 中国环境科学, 2015,35(9):2677-2681.Liu J L, Lu W, Zhang F J, et al. Kinetics study of activated persulfate oxidation of phenol in ground water[J]. China Environmental Science, 2015,35(9):2677-2681.
[21] 田凯勋,杨超,肖泉,等.超声强化零价铁/过硫酸钾体系降解2,4,6-三氯苯酚废水[J]. 中国环境科学, 2017,37(10):3729-3734.Tian K X, Yang C, Xiao Q, et al. Degradation of 2,4,6-TCP in an ultrasound-enhanced zero-valent iron/potassium persulfate system[J]. China Environmental Science, 2017,37(10):3729-3734.
[22] 何洋洋,唐素琴,康婷婷,等.响应面法优化硫酸根自由基高级氧化深度处理渗滤液生化尾水[J]. 中国环境科学, 2015,35(6):1749-1755.He Y Y, Tang S Q, Kang T T, et al. Optimization of sulfate radical-based advanced oxidation process using response surface methodology for treating effluent from biological treatment of landfill leachate[J]. China Environmental Science, 2015,35(6):1749-1755.
[23] Chakma S, Praneeth S, Moholkar V S. Mechanistic investigations in sono-hybrid (ultrasound/Fe²⁺/UVC) techniques of persulfate activation for degradation of Azorubine[J]. Ultrasonics Sonochemistry, 2017,38:652-663.
[24] 国家环境保护总局.水和废水监测分析方法[M]. 北京:中国环境科学出版社, 2002.Nation Enviromental protection Administration. Water and wastewater monitoring and analysis methods[M]. Beijing:China Enviromental Science Press, 2002.
[25] Zhou A, Zhang J, Wen K, et al. What could the entire cornstover contribute to the enhancement of waste activated sludge acidification? Performance assessment and microbial community analysis[J]. Biotechnology for Biofuels, 2016,9(1):241-254.
[26] Yang J, Liu X, Wang D, et al. Mechanisms of peroxymonosulfate pretreatment enhancing production of short-chain fatty acids from waste activated sludge[J]. Water Research, 2019,148:239-249.
[27] Liang C, Lai M C. Trichloroethylene Degradation by Zero Valent Iron Activated Persulfate Oxidation[J]. Environmental Engineering Science, 2008,25(7):1071-1078.
[28] Wang S, Zhou N. Removal of carbamazepine from aqueous solution using sono-activated persulfate process[J]. Ultrasonics Sonochemistry, 2016,29:156-62.
[29] Yang Q, Zhong Y, Zhong H, et al. A novel pretreatment process of mature landfill leachate with ultrasonic activated persulfate:Optimization using integrated Taguchi method and response surface methodology[J]. Process Safety and Environmental Protection, 2015,98:268-275.