REARING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a rearing apparatus capable of carrying out a space saving of an installation space by compacting a foam separator, a nitrification tank and a denitrification tank. SOLUTION: This circulation type rearing apparatus comprises circulating water in a rearing tank 1 for rearing fishes and shellfishes through a circulation route 6. The rearing apparatus is equipped with the foam separator 4 for subjecting water to a foam separation treatment and a septic tank 5 obtained by integrating the nitrification tank 2 for nitrifying ammonium in water with the denitrification tank 3 for denitrifying nitrified nitrogen in the circulation route 6. A transportation route 7 for leading nitrified water from the nitrification tank 2 to the denitrification tank 3 is arranged in the septic tank 5 besides the route 6 for returning water nitrified in the nitrification tank 2 to the rearing tank 2. A return route 8 for returning water denitrified by the denitrification tank 3 to the foam separator 4 is installed. The separator 4, the nitrification tank 2 and the denitrification 3 can be compacted in one tank.