Biological anaerobic degradation treatment method for circulating water for breeding rare small fishes

Abstract

The invention relates to a biological anaerobic degradation treatment method for circulating water for breeding rare small fishes. A transparent closed anaerobic degradation treatment container is divided into two chambers by using a middle clapboard, a certain gap is kept between the upper end of the middle clapboard and the lower end of a water line and the bottom of the container, and respectively a plurality of anaerobic bags are placed in the two chambers according to the capacity, the outer bags of the biological anaerobic degradation culture bags are mesh bags made of nylon gauze, the mesh bags are filled with biological cotton, 1.5-3 g of nitrobacteria powder strains are placed into each anaerobic degradation culture bag during water treatment, bag openings are tightened, placing once every day and continuous placing for three days are conducted, and a water inlet and a valve are vertically arranged at the upper end of the container. A transverse water outlet and a valve are arranged at diagonal lines of a container, and the height of the water outlet is 3-5cm lower than that of the upper end of the container, so that water flow flows from a water inlet to the water outlet in the container in a longest distance in a concave curve manner by virtue of natural gravity, and two stages can be additionally arranged in the same manner. Time and labor are saved, the cost is low, and the effect is good through practical verification.

Description

technical field [0001] The invention relates to a technical device for aquaculture circulating water treatment, in particular to a biological anaerobic degradation treatment device for aquaculture and rare small fish circulating water. Background technique [0002] Existing circulating water treatment of rare and rare fish is mostly treated by physical filtration methods, such as using centrifugal machinery to filter water, etc., but the water treated by physical filtration methods also contains many organisms and their metabolites and various For microorganisms, it is difficult to meet the water quality requirements by physical filtration alone. Therefore, biodegradation methods and devices are needed for treatment. The biodegradation methods are divided into aerobic degradation and anaerobic degradation. Here, only for The method of biological anaerobic degradation treatment device, no similar biological anaerobic degradation treatment device was found after preliminary se...

AI Technical Summary

Problems solved by technology

[0002] Existing circulating water treatment of rare and rare fish is mostly treated by physical filtration methods, such as using centrifugal machinery to filter water, etc., but the water treated by physical filtration methods also contains many organisms and their metabolites and various For microorganisms, it is difficult to meet the water quality requirements by physical filtration alone. Therefore, biodegradation methods and devices are needed for treatment. The biodegradation methods are divided into aerobic degradation and anaerobic degradation. Here, only for The method of biological anaerobic degradation treatment device, no similar biological anaerobic degradation treatment device was found after preliminary search