罗氏沼虾育苗后海水的净化及重复使用试验  

Purification and reuse of waste water from Macrobrachium rosenbergii larvae culture

作　　者：沈乃峰 沈勤华 钱冬[3] 劳顺健 王春方 周志金 陈丰刚 刘问[3] 韦肖杭[3] 

机构地区：[1]湖州市水产技术推广站,浙江湖州313000 [2]湖州市环境科学研究所,浙江湖州313000 [3]浙江省淡水水产研究所,浙江湖州313001

出　　处：《渔业现代化》2009年第5期32-35,40,共5页Fishery Modernization

基　　金：浙江省农业科研项目(2006C32035)

摘　　要：对罗氏沼虾（Macrobrachium rosenbergii）育苗后的废海水生物净化及重复使用进行研究。采用自行设计的整体式生物过滤器，通过生物膜处理废水。结果表明：处理后的废海水中的NH4^＋-N和NO2^- —N分别为0．47—1．21mg/L和0．036～0．100mg／L，符合罗氏沼虾幼体生长要求。2008年试验池水体12．76m^3，育苗各阶段使用50％～80％净化海水，虾苗产量达87万尾／m^3，成活率96．2％，虾苗规格0．90cm，与原配制海水无明显差异，节约净化海水57．52％。The artificial sea water is widely used in Macrobrachium rosenbergii larvae culture in freshwater regions. In Huzhou, more than 8 000 tons of artificial sea water are used and discharged into the water ways around, causing a serious water and soil pollutions. In this paper, the author studied on reuse of waste water discharged from the larvae culture ponds. A bio-fiher set designed by author was used for purification. The recirculation treated water was reused in M. rosenbergii larvae culture. The results showed that the bio-fiher set could effectively remove the NH4^＋ -N, NO2^--N and other harmful substances in waste water. The NH4 -N, NO2^- -N in recycled water could reach to 0.47 - 1.21 mg/L and 0.036 -0. 100 mg,/L respectively, fitting the requirements for M. rosenbergii larvae growth. This bio-fiher set was successfully used in larvae tanks of M. rosenbergii larvae farm in Huzhou in 2008, saving about 57.52% artificial sea water. The survival rate of larvae was 96.2%, with the production of 80 000 ind./m^3 larvae sized of 0.90 cm. It indicates that bio-filter set can effectively used for purification of discharged waste from M. rosenbergii larvae culture, which can be reused for M. rosenbergii larvae culture.

关 键 词：罗氏沼虾 育苗废水 生物净化 

分 类 号：S969.38[农业科学—水产养殖]