Device and method for cooperatively treating aquaculture tail water

A device for cooperatively treating aquaculture tail water by algae and bacteria, comprising:

• an aquaculture part, wherein a bottom of the aquaculture part is communicated with one end of a sewage discharge part, and an other end of the sewage discharge part is communicated with a bottom of a tail water treatment part, and an upper side wall of the tail water treatment part is communicated with an upper side wall of the aquaculture part;
• wherein the sewage discharge part comprises a sewage pipe communicated with the bottom of the aquaculture part, one end of the sewage pipe away from the aquaculture part is communicated with the bottom of the tail water treatment part, and a sewage pump is arranged on the sewage pipe;
• the aquaculture part comprises a first shell, a first liquid level controller is arranged in the first shell, a first sensor assembly is fixedly installed on an inner side wall of the first shell, a bottom end of the first shell is communicated with at least one sewage collection tank, and a bottom end of the at least one sewage collection tank is communicated with the sewage pipe;
• and
• the tail water treatment part comprises a second shell, wherein a bottom end of the second shell is communicated with the sewage pipe, and a top end of a side wall of the second shell is communicated with the upper side wall of the aquaculture part;
• a plurality of guide plates are arranged in the second shell, and microalgae are inoculated on an outer side wall of each of the plurality of guide plates.