Aquaculture system

Patent metadata

Field	Value
Publication number	US-10246355-B2
Application number	US-201615259624-A
Country	US
Kind code	B2
Filing date	Sep 8, 2016
Priority date	Jun 17, 2016
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

An aquaculture system is provided. The aquaculture system includes a cultivation pond, a water circulation unit, a water quality detector, and a water processing module. The cultivation pond for storing the cultivation water has a recirculation inlet and recirculation outlet. The water circulation unit is in fluid communication with the cultivation pond to allow the cultivation water in the cultivation pond to circulate through the water circulation unit. The water quality detector is used to detect the quality of the water to obtain water quality information. The water processing module includes an electrolytic gas generator and a control unit to improve the quality of water. The control unit receives the water quality information and adjusts the applied voltage on the electrolytic gas generator according to the water quality information to control the gas species and a ratio of the gases generated by the electrolytic gas generator.

First claim

What is claimed is:

1. An aquaculture system, comprising:
a culture pond for storing a cultivation water of a predetermined water level, wherein the culture pond has a recirculation inlet and a recirculation outlet;
a water circulation unit arranged between the recirculation inlet and the recirculation outlet, the water circulation unit is in fluid communication with the recirculation inlet and the recirculation outlet, and the cultivation water is circulated by the water circulation unit;
a water quality detector disposed in at least one of the culture pond and the water circulation unit for detecting the water quality of the cultivation water and obtaining a piece of water quality information; and
a water processing module comprising:
an electrolytic gas generator in fluid communication with the water circulation unit and for generating a first gas and a second gas by electrolyzing water, wherein the electrolytic gas generator has a first outlet tube and a second outlet tube independently in fluid communication with the water circulation unit for unidirectionally outputting the first gas and the second gas into the water circulation unit, respectively; and
a control unit electrically connected to the electrolytic gas generator and the water quality detector, wherein the control unit receives the water quality information and controls the electrolytic gas generator to adjust a voltage value for electrolyzing water based on the water quality information to control a type of the first gas and a ratio of the first gas to the second gas generated by the electrolytic gas generator,

wherein the cultivation water is circulated in the water circulation unit without flowing into the electrolytic gas generator.

2. The aquaculture system according to claim 1 , wherein the water processing module comprises a filter unit connected to and in fluid communication with the water circulation unit, and the cultivation water flowing in the water circulation unit is filtered by the filter unit.

3. The aquaculture system according to claim 2 , wherein the water circulation unit comprises a water inlet tube connected between the culture pond and the filter unit, a water outlet tube connected between the filter unit and the culture pond, and a pump, wherein the cultivation water flows out of the culture pond and enters the filter unit through the water outlet tube, flows out of the filter unit, and returns to the culture pond through the water inlet tube, and the pump is in fluid communication with the water inlet tube for providing a power for circulating the cultivation water in the water circulation unit.

4. The aquaculture system according to claim 3 , wherein the first outlet tube is connected to and in fluid communication with the water outlet tube and inlets the first gas into the water outlet tube.

5. The aquaculture system according to claim 3 , wherein the second outlet tube is connected to and in fluid communication with the water inlet tube and inlets the second gas into the water inlet tube.

6. The aquaculture system according to claim 3 , wherein the water quality detector is disposed in the water inlet tube for detecting water quality of the cultivation water before the cultivation water flows into the culture pond.

7. The aquaculture system according to claim 3 , further comprises a water supplying port and a water discharging port, the water supplying port is in fluid communication with the culture pond, and the water discharging port is in fluid communication with the water inlet tube for discharging a cultivation wastewater generated from the cultivation water being circulated in the aquaculture system for multiple times.

8. The aquaculture system according to claim 1 , wherein when the voltage value for electrolyzing water is less than 1.5 V, the first gas is oxygen gas and the second gas is hydrogen gas.

9. The aquaculture system according to claim 1 , wherein when the voltage value for electrolyzing water is larger than 1.5 V, the first gas comprises oxygen gas and ozone, and the second gas is hydrogen gas.

10. The aquaculture system according to claim 9 , wherein the control unit accesses a reference table recording a superoxide concentration, an oxygen concentration and a hydrogen concentration corresponding to each of different culture species, and the control unit adjusts the voltage value according to the water quality information and the reference table for controlling the superoxide concentration, the oxygen concentration and the hydrogen concentration in the cultivation water.

11. The aquaculture system according to claim 1 , wherein the water quality information comprises water temperature, redox-potential, pH value, dissolved oxygen, ammonia nitrogen, total dissolved solid and electro-conductivity.

12. The aquaculture system according to claim 1 , further comprises a cloud host database connected to the control unit and a remote monitoring device connected to the cloud host database, wherein the control unit uploads and stores the water quality information to the cloud host database, and the remote monitoring device receives the water quality information from the cloud host database.

13. The aquaculture system according to claim 1 , wherein the water processing module further comprises a pure water supplying device connected to and in fluid communication with the electrolytic gas generator for supplying water to the electrolytic gas generator.

14. The aquaculture system according to claim 1 , wherein the electrolytic gas generator is a proton exchange membrane (PEM) electrolytic gas generator comprising:
a water electrolytic component comprising an electrolyzer and a membrane electrode set disposed in the electrolyzer, wherein the electrolyzer is in fluid communication with the pure water supplying device, the membrane electrode set comprises an anode, a cathode and a proton exchange membrane between the anode and the cathode; and
an adjustable power supply electrically connected to the anode and the cathode for forming an electric circuit, wherein the control unit is electrically connected to the adjustable power supply for adjusting a voltage value provided by the adjustable power supply.

15. The aquaculture system according to claim 14 , wherein the anode comprises an additive and a composition, wherein the additive is selected from a group consisting of iridium, iridium black, iridium oxide, ruthenium, ruthenium oxide, platinum, platinum-iridium, palladium, iridium-ruthenium oxide, iridium-ruthenium-tantalum oxide, tin-antimony-nickel alloy, lead dioxide, glassy carbon, boron doped diamond, platinum-tantalum oxide and any combination thereof, and the composition comprises perfluorinated sulfonic acid resin, polytetrafluoroethylene, sulfuric acid, carbon nanotubes and graphene.

16. The aquaculture system according to claim 14 , wherein the anode comprises an additive and a composition, wherein when the first gas comprises oxygen gas and ozone, the additive is tin-antimony-nickel alloy, lead dioxide, boron doped diamond, platinum-tantalum oxide or any combination thereof, the composition comprises perfluorinated sulfonic acid resin, polytetrafluoroethylene, sulfuric acid, carbon nanotubes or graphene, and the voltage value for electrolyzing water is larger than 1.5V.

Assignees

• Univ Yuan Ze

Inventors

• Jung Guo-Bin
• Yeh Chia-Chen
• Yu Jyun-Wei
• Ma Chia-Ching
• Hsieh Chung-Wei
• Lin Cheng-Lung

Classifications

• C02F1/70

  by reduction {(C02F1/4676 takes precedence)} · CPC title

• C02F2209/05

  Conductivity or salinity · CPC title

• C02F1/4618

  for producing "ionised" acidic or basic water · CPC title

• C02F2209/10

  Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS] · CPC title

• C02F2001/46138

  Electrodes comprising a substrate and a coating · CPC title