US 12,232,487 B2
Module type aquaculture tank having stepwise recirculating aquaculture system
Yong Kil Cho, Seoul (KR)
Assigned to Aqua Development Ltd., Seoul (KR)
Filed by Aqua Development Ltd., Seoul (KR)
Filed on Dec. 29, 2022, as Appl. No. 18/148,153.
Application 18/148,153 is a continuation of application No. PCT/KR2021/008334, filed on Jul. 1, 2021.
Claims priority of application No. 1020200081655 (KR), filed on Jul. 2, 2020.
Prior Publication US 2023/0140295 A1, May 4, 2023
Int. Cl. A01K 63/04 (2006.01); A01K 61/17 (2017.01)
CPC A01K 63/042 (2013.01) [A01K 61/17 (2017.01); A01K 63/045 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A module type aquaculture tank system having a stepwise recirculating aquaculture system comprising:
a main fish breeding water tank including first, second, third, and fourth edges and having a square plane;
an intermediate fish breeding water tank disposed adjacent to the first edge of the main fish breeding water tank;
a plurality of recirculating filtration tanks arranged adjacent to each other along the third edge opposite to the first edge of the main fish breeding water tank; and
an air lifting Venturi apparatus including a plurality of Venturi pipes arranged along the edges of an inside of the main fish breeding water tank and an air guide obliquely extending from an upper end of each of the plurality of Venturi pipes upward in an air spray direction.