摘要
针对工厂化循环水养殖系统中快速去除水中的溶解性氨氮和增加溶解氧等系统设计的核心问题,采用物质平衡关系建立氨氮、溶解氧的平衡方程式,推导出系统设计的计算公式,并根据工程实践的经验对部分公式进行了修正,得到了一组较贴近实际情况的设计参数,如:系统补水量、供氧量、循环量、循环次数、生物过滤器有效体积等。同时构建了一个工厂化循环水养殖系统设计的基本流程。以设计一套年产50 t鮰鱼(Ictalurus),养殖密度为50 kg/m3的高密度工厂化循环水养殖系统为例,可以计算得到系统的补水量为30 m3/d,系统补水率为6%,系统供氧为11.0 kg/h,系统循环量740 m3/h,循环次数为36次/d,生物过滤器有效体积为44.2 m3。
Quick removal of the water soluble ammonia and increase of dissolved oxygen are the core issues of systemdesign.The system design calculating formula and basic processes ammonia and dissolved oxygen balance equation were established using mass balance relations,and the system design formula was derived.Some formulas were modified according to project practice experience.A group of appropriate design parameters closer to practical situation were obtained,for example:system compensated water volume,oxygen sup...
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2009年第2期161-166,共6页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家科技支撑计划项目(2006BAD03B06)
关键词
水产养殖
工程
设计
循环水养殖系统
物质平衡
aquaculture
engineering
design
recirculating aquaculture systems
mass balance
