CAJ | 학술논문

文章研究了不同水力停留时间和壳聚糖的投加对循环流水产养殖系统的影响，结果表明，当水力停留时间为8h，系统内除磷，除氨氮、COD效果明显，通过生物滤池和植物滤池的去除，NO2^-浓度下降，植物滤池平均出水浓度总磷1．60mg／L、氨氮0．016mg／L、COD为21．788mg／L；养鱼池投加壳聚糖，出水的色度和浊度都明显降低。
문장연구료불동수력정류시간화각취당적투가대순배류수산양식계통적영향，결과표명，당수력정류시간위8h，계통내제린，제안담、COD효과명현，통과생물려지화식물려지적거제，NO2^-농도하강，식물려지평균출수농도총린1．60mg／L、안담0．016mg／L、COD위21．788mg／L；양어지투가각취당，출수적색도화탁도도명현강저。
This paper studied the influence of different hydraulic retention time and chitosan additive on recirculating aquaculture system. The results show that, when the hydraulic retention time was 8 h, the removal efficiency of phosphorus, ammonia nitrogen and COD was high. Through the bio - filter and plants filter, the NO2^- concentration dropped. In the effluent of plant filter, the average concentration of phosphorus, ammonia nitrogen and COD was 1.60 mg/L, 0. 016 mg/L and 21. 788 rag/L, respectively. The turbidity and chromaticity were obviously reduced by dosing ehitosan in the fish pond.