我国是世界上池塘养鱼面积最大、历史最悠久的国家,淡水池塘养殖面积达500多万公顷。目前因养殖水域水环境恶化而引发的病害及污染已经对水产养殖业带来极大的危害,成为我国水产养殖业可持续发展中最难解决的问题。水产养殖系统所排放的废水中包含了大量有害物质:溶解态代谢废物、饲料和粪便中的溶解态营养 China is the world’s largest fish pond area, the oldest country, freshwater ponds breeding area of ​​5000000 hectares. At present, the diseases and pollution caused by the deterioration of the aquatic environment in aquaculture water have brought great harm to the aquaculture industry and become the most difficult problem in the sustainable development of aquaculture in our country. Wastewater from aquaculture systems contains a significant amount of hazardous material: dissolved metabolic waste, feedstuffs and dissolved nutrients in the faeces