Abstract: A device for cooperatively treating aquaculture tail water by algae and bacteria is provided, including an aquaculture part; the aquaculture part is communicated with a sewage discharge part, and the sewage discharge part is communicated with a tail water treatment part, and the tail water treatment part is communicated with the aquaculture part; the sewage discharge part includes a sewage pipe communicated with the aquaculture part, where one end of the sewage pipe away from the aquaculture part is communicated with the tail water treatment part, and a sewage pump is arranged on the sewage pipe; the tail water treatment part includes a second shell, a bottom end of the second shell is communicated with the sewage pipe, a top end of a side wall of the second shell is communicated with the aquaculture part, several guide plates are arranged in the second shell.

Abstract: The present invention provides table salts. The said table salts contains 50 to 600 mg/kg of strontium. The strontium-rich table salts provided by the present invention has significantly higher strontium content than traditional common table salts. As one of the essential trace elements, strontium plays an important role in human health. The said table salts provided by the present invention are rich in strontium, which can be assimilated by human body during taking the said table salts. Moreover, the strontium content in the table salts provided by the present invention ranges from 50 to 600 mg/kg, which enables human body to get enough strontium to meet human needs when taking normal amount of the said table salts daily.