以猪粪为原料的沼气发酵系统中镉、铜、锌分析  

Analysis of Cadmium,Zinc and Copper in Biogas Fermentation System of Pig Excrement

作　　者：徐庆贤[1] 沈恒胜[1] 林斌[1] 官雪芳[1] 

机构地区：[1]福建省农业科学院农业工程技术研究所,福建福州350003

出　　处：《台湾农业探索》2011年第5期75-78,共4页Taiwan Agricultural Research

基　　金：福建省科技计划重点项目(2007I0038;2008I0008);福建省农科院青年创新基金项目(2009QB-2)

摘　　要：以猪粪为主要原料的沼气发酵系统中,24天的生物发酵试验结果表明:镉主要残存在不可溶的沼渣中;无论是沼渣、沼液,还是两者的自然混合体系中,其镉、铜、锌的含量均未表现出明显的动态变化趋势;沼液中的镉、铜、锌含量小于沼渣中镉、铜、锌含量,其存在比例随沼渣的含水量、沼液悬浮颗粒含量的变化而变化。With the fermentation of pig excrement in 24 days,in the fermented liquid,fermented solid and the mixture of both,a dynamical change of cadmium content,zinc content and copper content had not been observed.On the other hand,the cadmium content,zinc content and copper content of fermented liquid were greater than those of the fermented solid.Furthermore,cadmium content,zinc content and copper content of fermented solid changed with contents of water and suspended solids.

关 键 词：猪粪 镉 铜 锌 动态变化 

分 类 号：S216.4[农业科学—农业机械化工程]