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堆肥预处理温度控制促进麦秸厌氧发酵产沼气
引用本文:陈广银,马慧娟,常志州,叶小梅,杜 静,徐越定,张建英. 堆肥预处理温度控制促进麦秸厌氧发酵产沼气[J]. 农业工程学报, 2013, 29(23): 179-185
作者姓名:陈广银  马慧娟  常志州  叶小梅  杜 静  徐越定  张建英
作者单位:江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014;江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014;江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014;江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014;江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014;江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014;江苏省农业科学院农业资源与环境研究所 农业部农村可再生能源开发利用华东科学观测实验站,南京 210014
基金项目:江苏省农业自主创新项目(CX(12)1002);国家水体污染控制与治理科技重大专项(2008ZX07101-004)
摘    要:为阐释温度在堆肥预处理影响秸秆厌氧发酵产沼气中的作用,以麦秸为原料,研究堆肥不同升温阶段麦秸的厌氧发酵产气特性,并以麦秸堆肥的温度数据为基础,以灭菌后的麦秸为原料进行模拟堆肥(不同温度处理),模拟堆肥后的麦秸进行厌氧发酵产沼气。结果表明,在堆温升至55℃前,麦秸干物质(TS)损失率为4.06%,当堆温升至55℃后麦秸TS损失率迅速增加,堆肥10 d后麦秸TS损失率达22.45%;堆肥后麦秸厌氧发酵产气速率并无明显提高,TS产气量随堆肥时间先增加后降低,以堆温升至55℃时麦秸TS产气量最大,为349.92 mL/g,较开始堆肥增加了7.56%,扣除堆肥造成麦秸有机物损失,堆肥预处理对麦秸产气量并无明显促进;当堆温超过55℃以上9 d的麦秸产气量仅为开始堆肥的66.58%。模拟堆肥的结果表明,不同温度处理对麦秸有机物损失、物质组成均有较大影响,模拟堆肥后麦秸半纤维素大幅降低了28.10%,TS产气量随处理温度、处理时间的增加先增加后降低,当处理温度为55℃时获得最大TS产气量,为342.36 mL/g,较未处理提高了8.35%;随着处理温度的提高和处理时间的延长,麦秸TS产气量逐渐降低。以上结果表明,堆肥预处理产生的高温对破坏秸秆物质结构、提高其厌氧生物转化性能有较大影响,当秸秆堆体温度升至55℃时应停止堆肥,进行厌氧发酵产沼气。该文可为堆肥预处理在秸秆沼气工程中应用提供参考。

关 键 词:厌氧消化,沼气,温度,麦秸,堆肥预处理
收稿时间:2013-06-22
修稿时间:2013-10-10

Promotion of biogas production of wheat straw by controling composting pretreatment temperature
Chen Guangyin,Ma Huijuan,Chang Zhizhou,Ye Xiaomei,Du Jing,Xu Yueding and Zhang Jianying. Promotion of biogas production of wheat straw by controling composting pretreatment temperature[J]. Transactions of the Chinese Society of Agricultural Engineering, 2013, 29(23): 179-185
Authors:Chen Guangyin  Ma Huijuan  Chang Zhizhou  Ye Xiaomei  Du Jing  Xu Yueding  Zhang Jianying
Affiliation:East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;East China Scientific Observing and Experimental Station of Development and Utilization of Rural Renewable Energy, Ministry of Agriculture, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
Abstract:
Keywords:anaerobic digestion   biogas   temperature   wheat straw   composting pretreatment
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