The most comprehensive and detailed introduction to the recirculating water aquaculture system

Circulating aquaculture system is a new type of aquaculture model, which uses a series of water treatment units to treat and reuse the wastewater generated in the aquaculture pool. The main principle of RAS is to integrate advanced technologies from various disciplines such as environmental engineering, civil engineering, modern biology, and electronic information, in order to remove harmful pollutants such as residual bait feces, ammonia nitrogen (TAN), and nitrite nitrogen (NO2-- N) from aquaculture water bodies, purify the aquaculture environment, and use physical filtration, biological filtration, CO2 removal, disinfection, oxygenation, temperature regulation, and other treatments to re input the purified water into the aquaculture pool. It can not only solve the problem of low water resource utilization, but also provide a stable, reliable, comfortable and high-quality living environment for aquaculture organisms, and provide favorable conditions for high-density aquaculture.