Particle separation apparatus

Patent metadata

Field	Value
Publication number	US-11052429-B2
Application number	US-201716089298-A
Country	US
Kind code	B2
Filing date	Jul 17, 2017
Priority date	Sep 12, 2016
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

Disclosed herein is a particle separation apparatus. The particle separation apparatus includes: a bioreactor; a first flow path through which the sludge is discharged from the bioreactor; a first filter including a first mesh separating the granular microorganisms contained in the sludge according to size; a second flow path into which an effluent having passed through the first filter flows; a third flow path connected to the second flow path to discharge the effluent outside; a fourth flow path connected to one side of the second flow path and mounted on a surface of the first filter connected to a surface of the first filter with the second flow path mounted thereon; a fifth flow path through which the effluent having been discharged from the fourth flow path and passed through the first filter flows into the bioreactor; and a first pump creating a flow of the effluent.

First claim

The invention claimed is:

1. A particle separation apparatus, comprising:
a bioreactor storing a sludge containing granular microorganisms;
a first flow path through which the sludge is discharged from the bioreactor;
a first filter comprising a first mesh separating the granular microorganisms contained in the sludge discharged through the first flow path according to size;
a second flow path into which an effluent having passed through the first filter flows;
a third flow path connected to the second flow path to discharge the effluent outside;
a fourth flow path connected to one side of the second flow path and mounted on a first portion of a surface of the first filter, the first portion being connected to a second portion of the surface of the first filter on which the second flow path is mounted to circulate the effluent to the bioreactor;
a fifth flow path through which the effluent having been discharged from the fourth flow path and passed through the first filter flows into the bioreactor; and
a first pump creating a flow of the effluent,
wherein the first mesh unit is rotatably mounted on the first filter.

2. The particle separation apparatus according to claim 1 , wherein the first mesh has a pore diameter of 50 μm to 500 μm.

3. The particle separation apparatus according to claim 1 , wherein a first flow path connection connected to one side of the first filter has a larger area than a second flow path connection connected to one side of the first filter.

4. The particle separation apparatus according to claim 1 , wherein the second flow path contacts the first pump.

5. The particle separation apparatus according to claim 4 , further comprising:
a second pump disposed on the fourth flow path upstream of the first filter.

6. The particle separation apparatus according to claim 5 , further comprising:
a third pump disposed on the fifth flow path upstream of the bioreactor.

7. The particle separation apparatus according to claim 1 , further comprising:
a detention tank storing the effluent discharged from the second flow path such that the effluent from the detention tank flows into the bioreactor through the fourth flow path or is discharged from the particle separation apparatus through the third flow path.

8. The particle separation apparatus according to claim 1 , further comprising:
a sample collection valve mounted on the second flow path to perform component analysis on the microorganisms discharged from the bioreactor.

9. The particle separation apparatus according to claim 1 , wherein the first filter further comprises a blade assembly secured to a surface of the first mesh.

10. A particle separation system comprising the particle separation apparatus according to claim 1 , wherein the granular microorganisms comprise at least one selected from the group consisting of anaerobic ammonium oxidizing bacteria, heterotrophic denitrifying bacteria, nitritation bacteria, and nitrifying bacteria, and the particle separation system separates the granular microorganisms according to size and allows the separated granular microorganisms to be discharged outside the bioreactor or to be concentrated in the bioreactor.

11. The particle separation system according to claim 10 , wherein the granular microorganisms comprise granules formed of the anaerobic ammonium oxidizing bacteria and the nitritation bacteria, and the particle separation system is operated to prevent the granules formed of the anaerobic ammonium oxidizing bacteria and the nitritation bacteria from passing through the first mesh while allowing the nitrifying bacteria to pass through the first mesh.

12. A particle separation apparatus, comprising:
a bioreactor storing a sludge containing granular microorganisms;
a first flow path through which the sludge is discharged from the bioreactor;
a first filter comprising a first mesh separating the granular microorganisms contained in the sludge discharged through the first flow path according to size and a blade assembly rotatably mounted on a surface of the first mesh;
a second flow path through which an effluent having passed through the first filter is discharged outside;
a third flow path connected to the second flow path to discharge the effluent outside;
a fourth flow path connected to one side of the second flow path and mounted on a first portion of a surface of the first filter, the first portion being connected to a second portion of the surface of the first filter on which the second flow path is mounted to circulate the effluent to the bioreactor;
a fifth flow path through which the effluent having been discharged from the fourth flow path and passed through the first filter flows into the bioreactor; and
a first pump creating a flow of the effluent,
wherein the blade assembly comprises a rotary blade.

13. The particle separation apparatus according to claim 12 , wherein the blade assembly comprises a cleaning brush attached to one side of the blade, the cleaning brush being adapted to be rotated while contacting one surface of the first mesh upon rotation of the blade.

14. The particle separation apparatus according to claim 12 , wherein a first flow path connection connected to one side of the first filter has a larger area than a second flow path connection connected to one side of the first filter.

15. The particle separation apparatus according to claim 12 , further comprising:
a second pump disposed on the fourth flow path upstream of the first filter.

16. The particle separation apparatus according to claim 12 , wherein the first mesh has a pore diameter of 50 μm to 500 μm.

17. The particle separation apparatus according to claim 12 , wherein the second flow path contacts the first pump.

18. The particle separation apparatus according to claim 12 , further comprising:
a detention tank storing the effluent discharged from the second flow path such that the effluent from the detention tank flows into the bioreactor through the fourth flow path or is discharged from the particle separation apparatus through the third flow path.

19. A particle separation system comprising the particle separation apparatus according to claim 12 , wherein the granular microorganisms comprise at least one selected from the group consisting of anaerobic ammonium oxidizing bacteria, heterotrophic denitrifying bacteria, nitritation bacteria, and nitrifying bacteria, and the particle separation system separates the granular microorganisms according to size and allows the separated granular microorganisms to be discharged outside the bioreactor or to be concentrated in the bioreactor.

20. The particle separation system according to claim 19 , wherein the granular microorganisms comprise granules formed of the anaerobic ammonium oxidizing bacteria and the nitritation bacteria, and the particle separation system is operated to prevent the granules formed of the anaerobic ammonium oxidizing bacteria and the nitritation bacteria from passing through the first mesh while allowing the nitrifying bacteria to pass through the first mesh.

Assignees

• Univ Yeungnam Res Cooperation Foundation

Inventors

• Jung Jin Young
• Lee Byeong Jun

Classifications

• B07B13/04 Primary

  according to size · CPC title

• B07B1/4609

  constructional details of screening surfaces or meshes · CPC title

• B07B1/524

  the brushes being rotating · CPC title

• B07B13/16

  Feed or discharge arrangements · CPC title

• C02F3/12

  Activated sludge processes · CPC title