HH Recirculating Aquaculture System---Biofilter

The biofilter adds a certain amount of suspended biological carriers to the reactor, increases aeration and stirring under natural conditions, utilizes the nutrients in the aquaculture water, and relies on functional nitrifying bacteria, denitrifying bacteria and other active microorganisms to gradually form an enriched active biofilm on the surface of the filler; the biofilm metabolizes and decomposes nutrients such as C, N, and P in the water through its own biochemical reactions, and converts free ammonia nitrogen and nitrite in the aquaculture water that are toxic and harmful to the aquaculture objects into non-toxic and harmless nitrates, nitrogen gas, etc., thereby achieving continuous purification and regeneration of the aquaculture water.