鱼类代谢产物是养殖水体的主要污染源，但同时也是能被水生植物利用的高能、优质的营养物质（Ｎ和Ｐ）。该文研究了孔石莼对养鲍污水的静态净化过程，分析了孔石莼滤池中水质的变化规律。结果表明，孔石莼能同时吸收水中的三氮和磷酸盐，尤其对氨氮有极强的吸收作用，但对有机物的去除不明显。建立了静态条件下对氨氮的净化模型。用孔石莼净化养殖污水具有净水、节能和收获饵料的综合效果。 Fish metabolites are a major source of pollution of aquaculture water, but are also high-energy, good-quality nutrients (N and P) that can be used by aquatic plants. In this paper, the static purifying process of Yangshengtang on Yanbian sewage was studied, and the variation of water quality in Kongshen filter was analyzed. The results show that the stone can absorb both triazoles and phosphates in water, especially for ammonia nitrogen absorption, but the removal of organic matter is not obvious. A static model of ammonia nitrogen purification was established. Purification of aquaculture wastewater with Kong Shui has the combined effects of water purification, energy saving and harvesting of bait.