猪粪厌氧发酵产气的优化条件研究  

Study on Optimization of Biogas Generation from Anaerobic Fermentation of Pig Slurry

作　　者：史金才[1] 廖新俤[1] 吴银宝[1] 

机构地区：[1]华南农业大学动物科学学院,广东广州510642

出　　处：《家畜生态学报》2008年第4期79-83,共5页Journal of Domestic Animal Ecology

基　　金：国家科技支撑计划(项目编号:2006BAD14B09-02)

摘　　要：研究猪粪发酵液厌氧消化过程的温度、接种率和原料添加量的优化条件,为猪粪废水的资源化利用提供参考。猪粪发酵液厌氧消化试验选择环境温度、接种率和原料添加量作为三因子,每因子设三水平进行正交试验。研究表明,温度对猪粪发酵液厌氧产气有显著影响,温度能影响物料水解过程,从而影响发酵液的pH值和氨氮值,二者关系到产气过程。猪粪发酵液厌氧产气优选组合是温度55℃、接种率30%、原料添加量100g,20d累积产气量达8899mL;TS降解率最好的组合为温度55℃、接种率30%、原料添加量80g,降解率达85.54%。In order to support recycling of livestock manure as resource, temperature, inoculation and concentration of fermented materials were investigated to optimize methane production from pig slurry. Based on temperature, inoculation and concentration of pig manure liquid, an orthogonal experiment was designed to optimize pig manure fermentation. Every factor contented three levels for the test. The results showed that anaerobic process of pig slurry was significantly influenced by temperature. Maximum methane volume （8899 mL） by 20 days fermentation was achieved under the conditions of temperature 55℃, inoculation 30% and concentration 100g. Maximum TS degradation rate （85.54%） was observed under the conditions of temperature 55℃, inoculation 30 % and concentration 80g.

关 键 词：猪粪 厌氧发酵 产气 优化条件 

分 类 号：S811.5[农业科学—畜牧学]