SYSTEM FOR DENITRIFICATION, STERILIZATION, AND DECOLORING TREATMENT OF REARING WATER, AND METHOD FOR DENITRIFICATION, STERILIZATION, AND DECOLORING TREATMENT OF REARING WATER

WIPO Patent Application WO/2024/029555

A1

The present invention relates to a system which is for denitrification, sterilization, and a decoloring treatment of rearing water and which comprises a rearing tank, a physical filtration tank, an ozone treatment tank, a mixing tank, a main circulation pump, and an auxiliary circulation pump. The mixing tank is provided rearward of the ozone treatment tank. The main circulation pump constantly circulates rearing water between the rearing tank, the physical filtration tank, and the mixing tank. The auxiliary circulation pump circulates rearing water between the rearing tank, the physical filtration tank, the ozone treatment tank, and the mixing tank. Stopping the auxiliary circulation pump achieves batch treatment of the rearing water in the ozone treatment tank, and operating the auxiliary circulation pump achieves flowing treatment of the rearing water in the ozone treatment tank.　The present invention makes it possible to provide a system that can achieve both a high-concentration ozone treatment which can efficiently perform decomposition of ammoniacal nitrogen, sterilization, and a decoloring treatment and a reduction in oxidizing substances remaining in treated water, and that can be applied to closed-circuit land-based rearing etc. in which there is a large amount of rearing water.

WATANABE TAKASHI (JP)
YAMANAKA DAIGO (JP)

PCT/JP2023/028242

February 08, 2024

August 02, 2023

Click for automatic bibliography generation  

NATIONAL INSTITUTE OF TECH (JP)
YAMATAKE CORP (JP)

A01K63/04; C02F1/78

JP2017176149A	2017-10-05
JP2002301489A	2002-10-15
JPH10118670A	1998-05-12

KAMADA, Mitsunori et al. (JP)

View/Download PDF      PDF Help

Previous Patent: TERMINAL, MANAGEMENT SYSTEM, AND MANAGEMENT METHOD

Next Patent: FILTER AND METHOD FOR MANUFACTURING SAME