Top > Search of International Patents > Denitrification device and aquatic organism rearing system

Denitrification device and aquatic organism rearing system

Foreign code F170009126
File No. (S2016-0218-N0)
Posted date Jul 13, 2017
Country WIPO
International application number 2016JP083548
International publication number WO 2017110296
Date of international filing Nov 11, 2016
Date of international publication Jun 29, 2017
Priority data
  • P2015-250196 (Dec 22, 2015) JP
Title Denitrification device and aquatic organism rearing system
Abstract (WO2017110296)
[Problem] To provide a denitrification device and an aquatic organism rearing system that can efficiently denitrify rearing water for an aquatic organism under an aerobic condition. [Solution] A denitrification device 20 according to an embodiment of the present invention for rearing water used to rear aquatic organisms comprises: a filtration tank 21 to which the rearing water retained in a rearing water - tank 2 is supplied via a pump 3; a filter material 22 that is accommodated within the filtration tank 21 and on which denitrification bacteria for causing nitrogen in the form of nitrate in the rearing water to undergo reduction, and an intermittent water discharge unit 23 for intermittently performing an oxygen uptake operation by discharging the rearing water accumulated in the filtration tank 21 into the rearing water tank 2 to expose the filter material 22.
Scope of claims [claim1]
1. Being the denitrification device of the raising water which is used for raising the aquatic organism,
The filtration tank where the raising water which is stored in the raising tank is supplied and,
The filter medium which becomes fixed the denitrification bacterium which is accommodated in the aforementioned filtration inside the tank, restores the aforementioned raising underwater nitrate nitrogen and,
Discharging the aforementioned raising water which accumulates in the aforementioned filtration tank to the aforementioned raising tank, the intermittent drainage section which does the oxygen taking operation which makes the aforementioned filter medium disclose intermittently and,
The denitrification device which features that it has.
[claim2]
2. In the claim 1 which features that furthermore it has another filter medium which becomes fixed the nitrification bacterium which oxidizes the aforementioned raising underwater ammonia condition nitrogen which is accommodated in the aforementioned filtration inside the tank, is supplied to the aforementioned filtration tank the denitrification device of statement.
[claim3]
3. As for the aforementioned intermittent drainage section, in the claim 1 which features that it is constituted by the siphon which makes the raising water of the aforementioned filtration inside the tank move into the aforementioned raising tank or 2 the denitrification device of statement.
[claim4]
4. As for the aforementioned filtration tank and the aforementioned intermittent drainage section in the claim 3 which features that it is the resin make the denitrification device of statement.
[claim5]
5. In the claim 1 which features that it possesses the valve where the aforementioned intermittent drainage section, is provided in the pipe conduit section, and the aforementioned pipe conduit section which possess the passage which discharges the raising water of the aforementioned filtration inside the tank into the aforementioned raising tank opens and closes the passage of the aforementioned pipe conduit section intermittently or 2 the denitrification device of statement.
[claim6]
6. As for the aforementioned filter medium, in either of the claim 1-5 which features that the porous cellulose is included the denitrification device of statement.
[claim7]
7. Being the aquatic organism raising system in order to raise the aquatic organism with closed circulatory system,
The raising tank which stores the raising water in order to raise the aquatic organism and,
The nitrification device which possesses with the nitrification tank and the 1st filter medium which is accommodated in the aforementioned nitrification inside the tank, oxidizes the aforementioned raising underwater ammonia condition nitrogen with the nitrification bacterium which becomes fixed in the aforementioned 1st filter medium and,
Discharging the denitrification tank and the 2nd filter medium which is accommodated in the aforementioned denitrification inside the tank and the aforementioned raising water which accumulates in the aforementioned denitrification tank to the aforementioned raising tank, the denitrification device which the intermittent drainage section which does the oxygen taking operation which makes the aforementioned 2nd filter medium disclose intermittently and, it possesses, restores the aforementioned raising underwater nitrate nitrogen under aerobic condition with the denitrification bacterium which becomes fixed in the aforementioned 2nd filter medium and,
The raising water which is stored in the aforementioned raising tank taking in water, the pump which pours water to the aforementioned nitrification tank and the aforementioned denitrification tank and,
The aquatic organism raising system which features that it has.
[claim8]
8. As for the aforementioned intermittent drainage section, in the claim 7 which features that it is constituted by the siphon which makes the raising water of the aforementioned denitrification inside the tank move into the aforementioned raising tank the aquatic organism raising system of statement.
[claim9]
9. As for the aforementioned denitrification tank and the aforementioned intermittent drainage section in the claim 8 which features that it is the resin make the aquatic organism raising system of statement.
[claim10]
10. The description above 2nd as for cubic measure of the filter medium, the description above in either of the claim 7-9 which features that 1st is larger than cubic measure of the filter medium the aquatic organism raising system of statement.
[claim11]
11. As for ratio of cubic measure of the aforementioned 1st filter medium and cubic measure of the aforementioned 2nd filter medium, in either of the claim 7-10 which features that it is the 1:3-5 the aquatic organism raising system of statement.
[claim12]
12. As for ratio of cubic measure of the aforementioned 1st filter medium and cubic measure of the aforementioned 2nd filter medium, in either of the claim 7-11 which features that it is the 1:4 the aquatic organism raising system of statement.
[claim13]
13. As for the aforementioned nitrification device, discharging the aforementioned raising water which accumulates in the aforementioned nitrification tank to the aforementioned raising tank, in either of the claim 7-12 which features that furthermore it possesses another intermittent drainage section which does the oxygen taking operation which makes the aforementioned 1st filter medium disclose intermittently the aquatic organism raising system of statement.
[claim14]
14. The filtration tank where the not yet processing water which is stored in the tank is supplied and,
The filter medium which becomes fixed the denitrification bacterium which is accommodated in the aforementioned filtration inside the tank, restores the aforementioned not yet processing underwater nitrate nitrogen and,
Discharging the aforementioned not yet processing water which accumulates in the aforementioned filtration tank to the aforementioned tank, the intermittent drainage section which does the oxygen taking operation which makes the aforementioned filter medium disclose intermittently and,
The denitrification device which features that it has.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY
  • Inventor
  • ENDO MAKOTO
  • TERAHARA TAKESHI
IPC(International Patent Classification)

PAGE TOP

close
close
close
close
close
close