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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0.47~1.21 mg/L和0.036~0.100 mg/L,符合罗氏沼虾幼体生长要求。2008年试验池水体12.76 m3,育苗各阶段使用50%~80%净化海水,虾苗产量达8万尾/m3,成活率96.2%,虾苗规格0.90 cm,与原配制海水无明显差异,节约净化海水57.52%。
Macrobrachium rosenbergii (Macrobrachium rosenbergii) after the breeding of waste water biological purification and reuse. Integrated self-designed biofilter to treat waste water through biofilm. The results showed that NH4 + -N and NO2 - N in the treated waste water were 0.47-1.21 mg / L and 0.036-0.100 mg / L, respectively, which accorded with the growth requirements of larvae of Macrobrachium rosenbergii. In 2008, the water volume in the test pond was 12.76 m3, 50% -80% seawater was used in each stage of seedling raising. The shrimp output was 80,000 / m3, the survival rate was 96.2% and the shrimp seed specification was 0.90 cm. There was no significant difference with the original preparation seawater. Purified sea water 57.52%.