污泥与香蕉秸秆混合厌氧发酵特性
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摘要
为提高污泥、香蕉秸秆厌氧发酵的甲烷产率,采用批式实验,研究污泥与香蕉秸秆厌氧发酵及其协同特性。实验结果表明:污泥和香蕉秸秆实验组分别会出现氨抑制、酸抑制现象,影响厌氧发酵的进行,一段时间后都可以自行解除抑制恢复产气。热碱污泥、碱浴秸秆实验组均可以解除抑制作用,甲烷产率较预处理前分别提高43%、176%。混合物质发酵实验组的甲烷产率较热碱污泥、碱浴秸秆实验组分别提高了110%、30%,较污泥和香蕉秸秆实验组分别提高了200%、259%。说明污泥和香蕉秸秆混合厌氧发酵,可以提高甲烷产率。
In order to increase the methane yield of anaerobic digestion of sludge and banana straw. The anaerobic fermentation and its synergistic characteristics of sludge and banana straw were studied by batch experiment.The experimental results show that the experimental group of sewage sludge and banana straw, appeared the phenomenon of ammonia inhibition and acid suppression, respectively, these restraints degraded quality of anaerobic digestion process. After a certain period of time, they all can eliminated the restraints and restarted to produce the methane. The experimental group of high temperature alkali treatment sludge and alkali bath treatment stalk can be disinhibited, and the yield of methane was 43% and 176% higher than before pretreatment. The methane yield of the mixed material fermentation group was increased by 110% and 30% compared with that of high temperature alkali treatment sludge and alkali bath treatment stalk, respectively. The methane yield of the mixed material group was increased by 200% and 259% compared with sludge and banana straw, respectively. It was indicated that anaerobic fermentation of sludge and banana straw can increase the methane yield.
In order to increase the methane yield of anaerobic digestion of sludge and banana straw. The anaerobic fermentation and its synergistic characteristics of sludge and banana straw were studied by batch experiment.The experimental results show that the experimental group of sewage sludge and banana straw, appeared the phenomenon of ammonia inhibition and acid suppression, respectively, these restraints degraded quality of anaerobic digestion process. After a certain period of time, they all can eliminated the restraints and restarted to produce the methane. The experimental group of high temperature alkali treatment sludge and alkali bath treatment stalk can be disinhibited, and the yield of methane was 43% and 176% higher than before pretreatment. The methane yield of the mixed material fermentation group was increased by 110% and 30% compared with that of high temperature alkali treatment sludge and alkali bath treatment stalk, respectively. The methane yield of the mixed material group was increased by 200% and 259% compared with sludge and banana straw, respectively. It was indicated that anaerobic fermentation of sludge and banana straw can increase the methane yield.
引文
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[4] WU X, YAO W, ZHU J, et al. Biogas and CH4 productivityby co-digestion swine manure with three crop residues as an external carbon source[J]. Bioresource Technology,2010,101(11):4042-4047. DOI:10.1016/j.biortech.2010.01.052.
[5]王丹丹,郭显强,古励,等.餐厨垃圾渗滤液强化城市污泥消化作用研究[J].环境科学学报,2014,34(10):2566-2572.
[6]梁梦迪,蔡瑞,丁晨晨,等.香蕉秸秆青贮过程中品质动态变化规律研究[J].家畜生态学报,2016,37(3):59-64.
[7]高淋淋,黄金玲,陆秀红,等.堆肥提取液和发酵液防治番茄根结线虫病的盆栽试验[J].北方园艺,2016(18):122-126.
[8]梁雄,黄程忠,邓中旺,等.有机物料腐熟剂在香蕉茎叶还田中的应用效果研究[J].农业与技术,2017,37(2):59-61.
[9] VALO A, CARRERE H, DELGENES J P. Thermal, chemical and thermo-chemical pre-treatment of waste activated sludge for anaerobic digestion[J]. Journal of Chemical Technology and Biotechnology,2004,79(11):1197-1203. DOI:10.1002/jctb.1106.
[10]国家环境保护总局.水和废水监测分析方法[M]. 4版.北京:中国环境科学出版社,2002:216-219.
[11]宁开桂.实用饲料分析手册[M].北京:中国农业科技出版社,1993:96-100.
[12]陈泽堂.水污染控制工程实验[M].北京:化学工业出版社,2003:4.
[13]刘和.城市污泥厌氧发酵产挥发性脂肪酸:原理与应用[M].北京:科学出版社,2015:20.
[14]任南琪,王爱杰.厌氧生物技术原理与应用[M].北京:化学工业出版社,2004:37.
[15]宋哲玉,徐培华.木质素胺类沥青乳化剂分子结构式研究[J].西安交通大学学报,1996,16(1):4-7.
[16]王凯军.厌氧生物技术(I):理论与应用[M].北京:化学工业出版社,2014:55.
[17]蒋建国,王岩,隋继超,等.厨余垃圾高固体厌氧消化处理中氨氮浓度变化及其影响[J].中国环境科学,2007,26(6):721-726.
[18]蒋滔,李平,任桂英,等.餐厨垃圾与玉米秸秆混合中温发酵产气效果模拟[J].生态与农村环境学报,2015,31(1):124-130.