畜禽养殖废弃物沼液的浓缩及其成分  

Concentration and determination of composition of biogas slurry

作　　者：宋成芳[1] 单胜道[1] 张妙仙[1] 文先红[1] 

机构地区：[1]浙江农林大学环境与资源学院,杭州311300

出　　处：《农业工程学报》2011年第12期256-259,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：浙江省科技厅优先主题重大农业项目(2010C12001)

摘　　要：为利用沼液开发生物肥料和农药提供基础数据,该文先采用超滤膜将2类沼液浓缩,并对浓缩后沼液的成分做了较全面分析。试验中,沼液在常压下通过超滤膜,进行循环浓缩过滤,最终获得体积缩小20倍的浓缩液。再对浓缩液的理化特性、重金属含量、部分活性物质浓缩和挥发份成分进行了分析。测定结果显示,2类沼液浓缩液中均含有丰富的营养物质,浓缩液的常规营养成分浓度显著高于原沼液;而浓缩液中重金属含量低于国家的肥料标准限制;有机物主要由烷类构成,还有少量脂类。研究结果为沼液资源化、高值化利用提供依据。This study provided the basic data for developing biopesticide and biofertilizer for exploiting biogas slurry,ultrafiltration technology by first used to concentrate Biogas slurry, and the composition concentrated liquor of to do a comprehensive analysis. Experiment,biogas slurry through the Ultra-filtration membrane under ordinary pressure.,he concentrated liquor was produced by cycle concentrated.Wo have analyzed Physical and chemical characteristics of biogas slurry,heavy metal content and volatilization composition of concentrated liquor were determinated.there were abundant nutriments in concentrated liquor,And heavy metal content of less than the standard limit.The volatilization of oncentrated liquor by a alcohol and alkyl and fat.This result can provide the base for the technology research on high value application of biogas slurry.

关 键 词：超滤 浓缩 堆肥 沼液 

分 类 号：X7[环境科学与工程—环境工程]