A method for aquaculture and plant cultivation by combining circulating water is implemented by sending overflow water on the upper level of a culture tank and polluted water on the bottom of the culture tank to a circular plate ultrafiltration membrane unit and a protein separator, respectively. In the protein separator, gas and liquid are mixed to form a bubbled hybrid solution, which is filtered by passing a membrane and separated from bubbles to form a water body flowing into the culture tank to form circulating water. Then, the bubbled hybrid solution and the concentrated waste liquid intercepted by the membrane filtration are sent to a foam collecting tank for standing fermentation to become culture waste water. The culture waste water passes through another circular plate ultrafiltration membrane unit to be separated into a primary filtrate and a turbid high protein concentrate. Finally, the primary filtrate is pumped to a nanofiltration membrane unit to remove ammonia nitrogen so as to obtain a recycling water rich in amino acid and a clear high protein concentrate. The recycling water is then pumped back to the culture tank for reuse.一種結合循環水進行水產養殖與植物栽培的方法,是將一養殖槽上層溢流水及底層污水分別送至一圓型平板超濾膜單元及一蛋白分離器,然後在該蛋白分離器內施以氣液混合以形成氣泡雜液,而通過膜過濾及與氣泡分離後的水體再流入養殖槽而形成循環水,然後,將氣泡雜液及膜過濾所截留濃縮廢液送至一集沫槽內靜置發酵以成為養殖廢水,養殖廢水經另一圓型平板超濾膜單元以分離出初濾液及混濁高蛋白濃縮液,最後將初濾液泵送入一納濾膜單元以除去氨氮,以獲得一富含胺基酸的回收水及澄清高蛋白濃縮液,回收水則抽送回養殖槽內再利用。10‧‧‧養殖槽12‧‧‧養殖水13‧‧‧第一抽水泵浦15‧‧‧排污管16‧‧‧第二抽水泵浦20‧‧‧鼓風機30‧‧‧蛋白分離器31‧‧‧筒槽32‧‧‧超微細氣泡產生單元33‧‧‧出水管34‧‧‧泡沫流出管35‧‧‧噴射氣體36‧‧‧臭氧40‧‧‧圓型平板超濾膜單元50‧‧‧集沫槽60‧‧‧圓型平板超濾膜單元70‧‧‧收集桶80‧‧‧植物工廠81‧‧‧淡水82‧‧‧生物餌料培養液83‧‧‧滲出液90‧‧‧納濾膜單元100‧‧‧回收水槽110‧‧‧收集桶111‧‧‧澄清高蛋白濃縮液120‧‧‧海菜蕨類培養液
