一体式过滤净化机在循环水养殖系统中的应用效果  

Study on integrated bio-purificatory filter in recirculating aquacultural systems

作　　者：鲍旭腾[1] 徐皓[2] 倪琦[2,3] 

机构地区：[1]上海海洋大学工程学院,上海201306 [2]中国水产科学研究院渔业机械仪器研究所,上海200092 [3]农业部渔业装备与工程重点开放实验室,上海200092

出　　处：《上海海洋大学学报》2010年第6期841-847,共7页Journal of Shanghai Ocean University

基　　金：国家"十一五"科技支撑计划项目(2006BAD03B06)

摘　　要：本装置综合了物理过滤和生物净化两种基本水处理功能,进行一体化集成与结构设计,并在循环水养殖状态下进行了试验。试验显示,本装置的TSS去除率为(58.5±17.8)%;养殖水体中:NH4+-N≤2mg/L,NO2--N≤0.5mg/L。经过两个月的养殖,鱼体生长良好,养殖密度从养殖初的27.22kg/m3,达到试验结束时的35.20kg/m3,均重增重率为34.6%,均重特定生长率为每天0.496%,成活率95.9%。结果表明,本装置同时具有较好的物理和生物净化功能,能较好地应用于高密度养殖系统中;其结构简单,工作时,能有效去除截留在过滤筛上的固体颗粒物,减少了反冲洗结构和反冲洗水量损失;间歇式的运行特点,其能耗较低。本装置精简了循环水养殖系统设备,降低了能耗,并取得了良好的水处理效果。This device combines the two basic functions of physical filtration and biological purification to integrate and structural design for integration,and was tested in the RAS.The results indicate that the TSS removal rate was （58.5 ± 17.8） % ;the toxic substances in water were controlled at low concentrations,i.e.,NH 4＋-N≤2 mg /L,NO 2-N ≤0.5 mg /L.During the two month experiment,fish grew well,its breeding density was increased from the test primary of 27.22 kg /m^3 to the test end of 35.20 kg /m^3,growth rate averaged 34.6% ,weight specific growth rate of 0.496% /d,the survival rate of 95.9% .The study shows that the device has both of the physical filtration and biological purification function,can be well used in highdensity culture systems;it has a simple structure and it can well remove the solid particulate matter effectively,reducing backwashing structure and the loss of backwashing water;with intermittent operational characteristics,it has low power consumption.This device streamlined recirculating aquaculture system equipment,reduces power consumption,and achieved a good water treatment.

关 键 词：循环水养殖系统 水处理 物理过滤 生物净化 一体机 

分 类 号：S953[农业科学—水产养殖]