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当前位置: 首页 > 文章 > 湿垃圾与猪粪混合厌氧发酵初步研究 中国沼气 2017,35 (02) 62-67
Position: Home > Articles > Preliminary Study on Wet Garbage and Pig Manure Mixed Anaerobic Digestion China Biogas 2017,35 (02) 62-67

湿垃圾与猪粪混合厌氧发酵初步研究

作  者：
李玲;宗文明;朱洪光;成潇伟;徐宇鹏;彭胜男
单  位：
同济大学薪农村发展研究院生物质能源研究中心;安徽农业大学工学院
关键词：
厌氧发酵;猪粪;湿垃圾;混合发酵;沼气工程
摘  要：
湿垃圾主要是纤维、竹木、厨房菜渣等含有机物成分的废弃物,城市生活垃圾中50%以上为湿垃圾,且逐年增长,湿垃圾的处理问题刻不容缓。文章提出将湿垃圾与猪粪进行混合厌氧发酵,旨在为湿垃圾的循环利用提供新途径。将菜叶、剩饭、果皮、烂水果收集粉碎搅匀后,与猪粪按照不同比例混合于55℃下发酵,通过分析配比率对沼气产量、甲烷含量、沼液SCOD和碱度的影响,探究该处理方法的可行性以及混合发酵和单一发酵间的差别,优化发酵的条件。结果表明:原料配比率对产气有显著影响,合适的配比率不仅能提高总产气量还能提高甲烷含量,湿垃圾的添加比例过高时则会对发酵产生抑制作用。具体表现为猪粪和湿垃圾的配比率为4:3时最适宜,相对猪粪单一发酵,总产气量可以提高79%,SCOD去除率可以提高12%,仅需3天便可成功启动,随后甲烷含量稳定维持在60%左右直到产气结束。
译  名：
Preliminary Study on Wet Garbage and Pig Manure Mixed Anaerobic Digestion
作  者：
LI Ling;ZONG Wen-ming;ZHU Hong-guang;CHENG Xiao-wei;XU Yu-peng;PENG Sheng-nan;Anhui Agriculture University,College of engineering;Bio-Energy Research Center,Institute of New Rural Development,Tongji University;
关键词：
anaerobic fermentation;;pig manure;;organic waste;;wet garbage;;mixed fermentation;;biogas engineering
摘  要：
More than 50% of the city waste were wet garbage containing organic matters as fiber,bamboo,kitchen vegetable wastes,etc. This approach was to mix the wet garbage with pig manure for anaerobic fermentation,so that to find a effective way for recycle use of wet garbage. Smashing and stirring the collected kitchen leftovers,leaves,peel rotten fruit and then mixed with pig manure in different ratio at 55℃,parameters of biogas yield,methane content,SCOD and alkalinity in biogas slurry,were measured and analyzed. The results showed that the mixing ratio had significant effect on gas production. A proper mixing ratio could not only increase the total gas production,but also increase the methane content. In this experiment,the optimum pig manure and wet garbage mixing ratio was 4:3,which increased total gas production by 79% comparing with the sole pig manure fermentation,increased the SCOD removal rate by 12%,and only need 3 days for starting up successfully. The methane content was maintained at about 60% until the end of fermentation.

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