摘要
本试验以典型的轻工业有机废弃物为原料,采用中温批式发酵工艺进行了厌氧发酵制取生物燃气的研究。结果表明,木薯淀粉渣、木薯杆、糖蜜酒精废水、肉食加工废水及果汁废水的产气率分别为623.7 m L/g VS、208 m L/g VS、223.0 m L/g COD、335.4 m L/g COD和383.4 m L/g COD,产甲烷率分别为355.1 m L/g VS、120.6 m L/g VS、94.7 m L/g COD、187.2 m L/g COD和136.1 m L/g COD,平均甲烷含量分别为56.9%、58.0%、43.0%、55.8%和35.5%。这些典型的轻工业加工废弃物皆为生物燃气发酵的适用原料,但是有各自的发酵产气特点,可根据不同原料采用不同的预处理方法及发酵工艺,以期取得更好的产气效果。
Experiments have been conducted to study the fermentation characteristics and biogas potential of a few typical organic wastes from light industries. Results showed that the biogas yields of cassava dreg, cassava stem, molasses alcohol wastewater, meat processing wastewater and juice wastewater were 623.7 m L/g VS, 208 m L/g VS, 223.0 m L/g COD, 335.4 m L/g COD and 383.4 m L/g COD respectively; the methane yields were 355.1 m L/g VS, 120.6 m L/g VS, 94.7 m L/g COD, 187.2 m L/g COD and 136.1 m L/g COD respectively; the average methane content were 56.9%, 58.0%, 43.0%, 55.8% and 35.5% respectively. These typical organic waste from light industries are found suitable for biogas production. However, due to different characteristics of these substrates, various pretreatment and fermentation technologies should be adapted base on their characteristics therefore better performances can be obtained.
出处
《新能源进展》
2016年第1期74-80,共7页
Advances in New and Renewable Energy
基金
国家科技支撑计划(2013BAD22B03)
广州市科技计划项目(201508020098)
关键词
生物燃气
厌氧发酵
原料特性
轻工业有机废弃物
biogas
anaerobic digestion
feedstock characteristics
typical organic wastes from light industries
