全封闭循环水工厂化养殖青石斑鱼水质效果研究

The study of water quality for breeding Epinephelus awoara with the industrial full-closed recirculating water system

利用全封闭循环水系统养殖青石斑鱼,通过测定进出水口的水质指标得出该系统对NO2-N、NH3-N、NO3-N、PO4-P、COD和BOD5的去除率分别为62.6%、40.1%、53.9%、49.0%、51.9%和53.6%,应在以后的养殖过程中改进系统设备,以达到对水体污染因子更高的去除率。

In this study, Epinephelus awoara were bred with the industrial full-closed recirculating water system. By measuring the indices for water quality of the inlet and outlet of this recirculating water system, we draw the conclusion that the removal ratios for NO2--N, NH3--N, NO3--N, PO4- P, COD and BODs with this recirculating water system were separately up to 62.6%, 40. 1%, 53. 9%, 49.0%, 51.9% and 53.6%, this System equipment needs to be improved in order to obtaining a better removal efficiency for the pollution factors.