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当前位置: 首页 > 文章 > 导气措施与渗滤液回流方式对干发酵产沼气影响中试 农业机械学报 2013,44 (2) 143-148
Position: Home > Articles > Effect of Gas Guide Measurement and Leachate-recirculation on Gas Production from Dry Fermentation Transactions of the Chinese Society for Agricultural Machinery 2013,44 (2) 143-148

导气措施与渗滤液回流方式对干发酵产沼气影响中试

作  者：
杜静;朱德文;钱玉婷;陈永生;陈广银;常志州
单  位：
江苏省农业废弃物资源化工程技术研究中心;农业部南京农业机械化研究所
关键词：
沼气;干发酵;导气措施;渗滤液喷淋方式;工程调控;车库式
摘  要：
为了获得有利于提高干发酵产气效率的工程调控措施,以水稻秸秆和新鲜牛粪为原料,采用柔性顶膜车库式干发酵装置,在常温(环境温度22~36℃)和发酵干物质质量分数16%条件下,研究导气管与渗滤液回流方式对沼气干发酵产气效果的影响。结果表明,通过在库内铺设垂向、横向导气管以及采用渗滤液回流调控措施,有助于提高发酵物料的产气效率,整个发酵周期(86 d)试验库平均容积产气率达0.36 m3/(m3·d)(原料产气率达155 m3/t(以TS计,下同)),明显高于对照库(0.28 m3/(m3·d),原料产气率120 m3/t);从发酵物料被淋洗的效果看,消化液每天回流方式比产气量下降后回流的方式好,并且建议对喷淋装置的等流量分配问题、回流泵选型与回流管布局及规格的匹配问题作进一步深入研究。
译  名：
Effect of Gas Guide Measurement and Leachate-recirculation on Gas Production from Dry Fermentation
作  者：
Du Jing;Zhu Dewen;Qian Yuting;Chen Yongsheng;Chen Guangyin;Chang Zhizhou;Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center;Nanjing Research Institute of Agricultural Mechanization,Ministry of Agriculture;
关键词：
Biogas Dry fermentation Air guide measure Leachate spray mode Engineering control Garage-type
摘  要：
In order to obtain the engineering control measures helpful to improve the dry fermentation efficiency,taking fresh cow dung and rice straws as raw materials,the effect of gas guide measurement and leachate-recirculation on gas production from dry fermentation was analyzed under the conditions of room temperature(ambient temperature of 22~36℃) and the total solid concentration of 16%.The results indicated that biogas efficiency was improved through regulation measures including laying vertical and horizontal vent-tubes.The average volume of biogas yield was up to 0.36 m3/(m3·d)(the gas yield with raw materials was 155 m3/t of total solid),higher than the comparison garage(0.28 m3/(m3·d),the gas yield with raw materials was 120 m3/t of TS) in the whole fermentation cycle(86 d).From the effect of leached with fermentation materials,it was concluded that the garage by returning spray digestive liquid every day was more effective.Furthermore,the equal flow distribution with spray device,matching of the pump selection and layout of return pipe should be in-depth researched.

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