双层浮球生物滤器设计及其水产养殖水处理性能试验-水产学报.PDFVIP

　第 29 卷第 4 期 水 　产 　学 　报 Vol . 29 , N o . 4 　 2005 年 8 月 　 　　　　　　　　 　　 　　　　　　 　　　　　 Aug . , 2005 　 J OURNAL OF FISHERIES OF CHINA ( ) 文章编号 : 1000 - 0615 2005 04 - 0578 - 05 ·研究简报 · 双层浮球生物滤器设计及其水产养殖水处理性能试验 曹广斌 , 　蒋树义 , 　刘 　永 , 　韩世成 , 　陈中祥 ( 中国水产科学研究院黑龙江水产研究所 , 黑龙江 哈尔滨 　150070) 关键词 : 浮球; 生物滤器; 水产养殖; 处理性能 中图分类号 :S969 　　　文献标识码 :A Study on design and performance of t wolayer floating bead biof ilter for recirculating aquaculture system CAO Guangbin , J IAN G Shuyi , L IU Yong , HAN Shicheng , CHEN Zhongxiang ( Heilongj iang River Fisheries Research Institute , Chinese Academy of Fishery Science , Harbin 　150070 , China) Abstract :Based on the filtration of sand filter bed , a solid and nitrification biofilter of floating plastic bead was designed and tested . In the biofilter , the bead was layered automatically in water according to the size and gravity of plastic bead . With two typ es of diameter 5 mm gravity 0. 94 and diameter 2 mm gravity 0 . 5 beads , the biofilter p erformed well in solid sep aration and ammonia nitrification . The bead filter p erformances were tested in a recirculating aquaculture system . When pump p ower was 0. 75 kW and 3 - 1 3 - 3 flow quantity was 20 m ·h , the recirculating culture system could supp ort 10 m water in culture density of 16 kg ·m A mur