摘要
针对中小型奶牛场在利用固体牛粪作垫料时,存在牛粪含水率高、致病菌杀灭率低等问题,采用自行研发的立体网带式牛粪垫料再生系统对固体牛粪进行热风干燥去除水分、杀灭致病菌。结果表明:该系统在铺料厚度为2cm、热风温度为50℃的条件下,对固体牛粪干燥处理9h,牛粪含水率可降至46.5%,大肠杆菌和链球菌杀菌率分别为95.6%和98.3%,符合固体牛粪作垫料的基本要求。所设计的立体网带式牛粪垫料再生系统可快速杀菌消毒并干燥固体牛粪,为奶牛场提供可再生利用的舒适垫料。
In this study,a 3Dmesh belt system was designed and manufactured to recycle manure solids as bedding for moderate and small scale dairy farms aiming at the problems of high moisture content and low pathogen killing rate in existing systems.The results showed that:Under the conditions of the material thickness 2cm and the air temperature 50℃,the moisture content of solid manure decreased to 46.5%,and the bactericidal rates of Escherichia coli and Streptococcus respectively reached 95.6%and 98.3%after 9hdrying.Therefore,the 3Dmesh belt system can quickly sterilize and dry the manure to produce appropriate bedding for dairy farms.
作者
王盼柳
周洪宇
段娜
施正香
曹哲
WANG Panliu;ZHOU Hongyu;DUAN Na;SHI Zhengxiang;CAO Zhe(College of Water Resources&Civil Engineering,China Agricultural University,Beijing 100083,China;Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs,Beijing 100083,China;Beijing Research Center for Livestock and Poultry Healthy Environmental Engineering Technology,Beijing 100083,China;Department of Engineering,Aarhus University,Aarhus C 8000,Denmark)
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2020年第6期82-89,共8页
Journal of China Agricultural University
基金
现代农业(奶牛)产业技术体系(CARS-36)
国家重点研发计划课题(2016YFD0501402)。
关键词
立体网带
牛粪
垫料
干燥
杀菌
3D mesh belt system
cattle manure
bedding
drying
sterilization
