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化工进展  2015 

响应面法优化微波热解剩余污泥产酸

DOI: 10.16085/j.issn.1000-6613.2015.07.040

Keywords: 废物处理,辐射,优化设计,微波预处理,剩余污泥,乙酸

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Abstract:

目前微波预处理污泥主要局限在污泥水解率及其对厌氧消化的影响,常用溶解性COD来进行表征预处理效果,在污泥产酸方向少有报道。为了确定微波热解剩余污泥产酸的最佳工艺条件,通过单因素实验选取实验因素与水平,根据中心组合设计原理,在单因素试验的基础上采用四因素三水平的响应面分析法,考察了微波加热温度、微波加热时间、过氧化氢投加量和乙酸投加量对污泥产酸的影响。微波热解剩余污泥产酸的最佳工艺条件为加热温度180℃,加热时间21min,过氧化氢投加量0.18g/(gSS),乙酸投加量49mg/(gSS),最大预测乙酸增量值581mg/L,试验值与预测值之间的相对偏差在0.033~0.074之间。研究结果表明本工艺可有效提高污泥有机酸产率,试验值与预测值吻合较好,可为污泥原位碳源开发提供理论和实际指导。

References

[1]  国家环境保护总局《水和废水监测分析方法》编委会. 水和废水监测分析方法[M]. 第4版. 北京:中国环境科学出版社, 2002.
[2]  孔祥吉. 微波与催化氧化组合技术在水处理中的应用[D]. 哈尔
[3]  滨:黑龙江大学:2004.
[4]  张萌, 肖羽堂, 张爱勇, 等. 高级氧化技术在污泥前置减量中的研究进展[J]. 环境保护科学, 2008, 34(2):63-66.
[5]  Shanableh A, Jomaa S. Production and transformation of volatile fatty acids from sludge subjected to hydrothermal treatment[J]. Water Science and Technology, 2001, 44(10):129-135.
[6]  肖本益, 刘俊新. 不同预处理方法对剩余污泥性质的影响研究[J]. 环境科学, 2008, 29(2):2327-2331.
[7]  Yan Y Y, Feng L Y, Zhang C J, et al. Ultrasonic enhancement of waste activated sludge hydrolysis and volatile fatty acids accumulation at pH10.0[J]. Water Research, 2010, 44(11):3329-3336.
[8]  池勇志, 刘晓敏, 李玉友, 等. 微波预处理剩余污泥的研究进展[J]. 化工进展, 2013, 32(9):2221-2226, 2252.
[9]  Chi Y Z, Ji M, Li Y Y, et al. 2nd Conference on Environmental Science and Information Application Technology, ESIAT 2010[C]. Wuhan, China:IEEE Computer Society, 2010.
[10]  池勇志, 刘晓敏, 李玉友, 等. 我国城市污水处理厂污泥厌氧消化产气问题及对策[J]. 水工业市场, 2013(3):44-50.
[11]  肖本益, 阎鸿, 魏源送. 污泥热处理及其强化污泥厌氧消化的研究进展[J]. 环境科学学报, 2009, 29(4):673-682.
[12]  Xu J B, Yuan H P, Lin J X, et al. Evaluation of thermal, thermal-alkaline, alkaline and electrochemical pretreatments on sludge to enhance anaerobic biogas production[J]. Journal of the Taiwan Institute of Chemical Engineers, 2014, 45(5):2531-2536.
[13]  Elliott A, Mahmood T. Comparison of mechanical pretreatment methods for the enhancement of anaerobic digestion of pulp and paper waste activated sludge[J]. Water Environment Research, 2012, 84(6):497-505.
[14]  Cho S K, Ju H J, Lee J G, et al. Alkaline-mechanical pretreatment process for enhanced anaerobic digestion of thickened waste activated sludge with a novel crushing device:Performance evaluation and economic analysis[J]. Bioresource Technology, 2014, 165:183-190.
[15]  Braguglia C M, Gagliano M C, Rossetti S. High frequency ultrasound pretreatment for sludge anaerobic digestion:Effect on floc structure and microbial population[J]. Bioresource Technology, 2012, 110:43-49.
[16]  Gallipoli A, Gianico A, Gagliano M C, et al. Potential of high-frequency ultrasounds to improve sludge anaerobic conversion and surfactants removal at different food/inoculum ratio[J]. Bioresource Technology, 2014, 159:207-214.
[17]  Park W J, Ahn J H. Optimization of microwave pretreatment conditions to maximize methane production and methane yield in mesophilic anaerobic sludge digestion[J]. Environmental Technology, 2011, 32(13):1533-1540.
[18]  Coelho N M G, Droste R L, Kennedy K J. Microwave effects on soluble substrate and thermophilic digestibility of activated sludge[J]. Water Environment Research, 2014, 86(3):210-222.
[19]  Toreci I, Droste R L, Kennedy K J. Mesophilic anaerobic digestion with high-temperature microwave pretreatment and importance of inoculum acclimation[J]. Water Environment Research, 2011, 83(6):549-559.
[20]  Shahriari H, Warith M, Hamoda M, et al. Anaerobic digestion of organic fraction of municipal solid waste combining two pretreatment modalities, high temperature microwave and hydrogen peroxide[J]. Waste Management, 2012, 32(1):41-52.
[21]  Appels L, Houtmeyers S, Degrève J, et al. Influence of microwave pre-treatment on sludge solubilisation and pilot scale semi-continuous anaerobic digestion[J]. Bioresource Technology, 2013, 128(6):598-603.
[22]  Yi W G, Lo K V, Mavinic D S. Effects of microwave, ultrasonic and enzymatic treatment on chemical and physical properties of waste-activated sludge[J]. Journal of Environmental Science and Health Part A:Toxic/Hazardous Substances & Environmental Engineering, 2014, 49(2):203-209. :Toxic/Hazardous Substances target="_blank">
[23]  秦晓. 剩余污泥中蛋白质的分离及其性质分析[D]. 天津:天津大学:2012.
[24]  王宏军, 邓旭明, 蒋红, 等. 蒽酮-硫酸比色法检测多糖条件的优化[J]. 中国饲料, 2011(4):39-41.
[25]  Chi Y Z, Li Y Y, Fei X N, et al. Enhancement of thermophilic anaerobic digestion of thickened waste activated sludge by combined microwave and alkaline pretreatment[J]. Journal of Environmental Sciences, 2011, 23(8):1257-1265.

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