全封闭循环海水养殖水处理系统水质净化效果分析

Water treatment effects for water treatmentsystem of closed circulating seawater

本研究测试了由弧形筛、蛋白质分离器、生物滤池和紫外线杀菌器4部分构成的水处理系统的海水养殖水处理效果,探讨了各部分在水处理中的作用。研究结果表明:该系统能显著去除NO2--N和NH3-N,对NO2--N和NH3-N的去除率分别为37.12%和63.85%;并且使COD和细菌指数显著降低,分别降低了36.01%和84.29%;使PO43--P的浓度降低了10.41%,但未达显著水平。该系统能显著提高水体NO3--N和DO浓度,NO3--N和DO浓度分别上升了32.45%和26.35%;使pH值略有升高。

A water treatment system consisting of arc-shapes griddle,protein separator,bioreactor and ultraviolet ray generator was studied to test the water-treatment effect of each part of the system,and the changes of water quality in inlet and outlet of four different treatment units were also examined.Results showed that the system can reduce NO2——N,NH4＋-N,COD and bacteria significantly,and the removal rates of NO2——N,NH4＋-N,COD and ordinary bacteria are 37.12%,63.85%,36.01% and 84.29% respectively,and can reduce PO43——P 10.41% without significant difference.The system can increase NO3——N and DO significantly,with an increase of 32.45 % and 26.35 %,but the changes of pH is not significant.