Development of Recirculation Aquaculture Tanks

Abstract

The aim of this invention was to design and built the recirculating aquaculture system (RAS) tanks for fish culture. Recirculation aquaculture is a technology for rearing fish by reusing the water in the production. This system saved the water and reduced aquaculture waste water flow to the environment. In this system, fish culture could operate in all periods of time and lack of water places. And it could set up in a townhouse as limited area. The development had to be improved in 3 stages of filter parts to treat water quality for aquaculture. It could culture fish in high density rate and get high survival rate, good growth performance and good quality fish. Design and development of recirculation aquaculture tanks, were improved in 3 stages of filter parts. Part 1 as a tray filter was used for filtered big size organic compound. Part 2 as a filter tank No.1, used for decompose nitrogen waste with the bio-filter system. Part 3 as a filter tank No.2 was used to redress the balance of up water quality [1] to treat water quality for perch (Anabas testudineus) culture and had 100 % survival rate