【摘要】 随着淡水养殖集约化程度的提高,水体氨氮和亚硝态氮等有毒物质浓度随之升高,严重危害了养殖对象的生长。因此,水体氨态氮及亚硝态氮的控制成为水质控制的关键。本文针对集约化养殖条件下的养殖水处理在天津市水产研究所淡水试验站进行了生物膜法和生态浮床净化法处理池塘养殖用水的实验。结果表明:生物膜法和生态浮床净化法都能有效去除池塘水体氨态氮及亚硝态氮,如果不使用水生植物,则每生产1t鱼需设置6.76m2的生物包。更多还原

【Abstract】 With the advance of intensivie of freshwater aquaculture,the concentration of toxicant such as a mmonia nitrogen and nitrite rose.Which seriously hurt the grouth of breeding object.So water a mmonia nitrogen and nitrite nitrogen control become the key control of water.In this paper,the breeding water purification treatment was studied in the intensive farming conditions by biofilm and ecological floating bed purification treatment in Tianjin Experimental Station of Tianjin Fisheries Research Institute.The result showed that:biofilm and ecological floating bed purification treatment both can effectively remove the water a mmonia and nitrite,if you do not use aquatic plants,to produce a ton of fish need to set 6.76m2 biological package.更多还原