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A device and method for enriching high-efficiency anammox sludge

A technology of anaerobic ammonium oxidation and sludge, which is applied in the field of anaerobic ammonium oxidation start-up devices, can solve the problems of low sludge yield coefficient, restrictions on the popularization and application of anaerobic ammonium oxidation, etc., shorten the start-up time, and the device is simple and easy to operate , the effect of increasing the metabolic rate

Active Publication Date: 2018-11-13
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the long doubling time of anammox bacteria and the low yield coefficient of sludge, the popularization and application of anammox is greatly restricted

Method used

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  • A device and method for enriching high-efficiency anammox sludge
  • A device and method for enriching high-efficiency anammox sludge
  • A device and method for enriching high-efficiency anammox sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An anaerobic expanded granular bed (EGSB) reaction device for enriching anammox sludge, characterized in that,

[0026] The structure of the device is as follows: outside the EGSB reactor (1), a jacket layer (2) is added; the EGSB reactor (1) is connected to the water inlet pipe, the drain pipe, and the return pipeline; the jacket layer (2) is connected through the return pipeline Constant temperature water tank (6); simulated waste water enters the water distribution device (11) of the EGSB reactor (1) from the water inlet tank (3) through the peristaltic pump (4), and then flows into the intermediate water tank (7) from the water outlet (9); Part of the effluent flows into the final water tank (8), and the other part flows back to the reactor water distribution device (11) through the peristaltic pump (5). The three-phase separator (10) is located at the top of the reactor, and sampling holes (12, 13) are opened on the right side of the reactor.

[0027] A reaction d...

Embodiment 2

[0035] An anaerobic expanded granular bed (EGSB) reaction device for enriching anammox sludge, characterized in that,

[0036] The structure of the device is as follows: outside the EGSB reactor (1), a jacket layer (2) is added; the EGSB reactor (1) is connected to the water inlet pipe, the drain pipe, and the return pipeline; the jacket layer (2) is connected through the return pipeline Constant temperature water tank (6); simulated waste water enters the water distribution device (11) of the EGSB reactor (1) from the water inlet tank (3) through the peristaltic pump (4), and then flows into the intermediate water tank (7) from the water outlet (9); Part of the effluent flows into the final water tank (8), and the other part flows back to the reactor water distribution device (11) through the peristaltic pump (5). The three-phase separator (10) is located at the top of the reactor, and sampling holes (12, 13) are opened on the right side of the reactor.

[0037]A reaction de...

Embodiment 3

[0045] An anaerobic expanded granular bed (EGSB) reaction device for enriching anammox sludge, characterized in that,

[0046] The structure of the device is as follows: outside the EGSB reactor (1), a jacket layer (2) is added; the EGSB reactor (1) is connected to the water inlet pipe, the drain pipe, and the return pipeline; the jacket layer (2) is connected through the return pipeline Constant temperature water tank (6); simulated waste water enters the water distribution device (11) of the EGSB reactor (1) from the water inlet tank (3) through the peristaltic pump (4), and then flows into the intermediate water tank (7) from the water outlet (9); Part of the effluent flows into the final water tank (8), and the other part flows back to the reactor water distribution device (11) through the peristaltic pump (5). The three-phase separator (10) is located at the top of the reactor, and sampling holes (12, 13) are opened on the right side of the reactor.

[0047] A reaction d...

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Abstract

The invention discloses an anaerobic EGSB (expanded granular sludge bed) reaction device for enriching anaerobic ammonium oxidation sludge. The device is structurally characterized in that a jacket layer (2) is added to the outside of an EGSB reactor (1); the EGSB reactor (1) is connected with a water inlet pipe, a drain pipe and a return pipe; the inside of the jacket layer (2) is connected with a constant temperature tank (6) through the return pipe; simulation wastewater enters a water distribution device (11) of the EGSB reactor (1) from a water inlet tank (3) through a peristaltic pump (4) and then flows into an intermediate water tank (7) from a water outlet (9); a part of effluent flows into a final water tank (8), and the other part of the effluent returns to the water distribution device (11) of the reactor through a peristaltic pump (5); a three-phase separator (10) is located at the top of the reactor, and sampling holes (12 and 13) are formed in the right side of the reactor. The anaerobic ammonium oxidation sludge obtained through enrichment has high capacity and efficiency and has higher anaerobic ammonium oxidation activity and efficient and stable denitrification performance.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to a device and method for starting anaerobic ammonium oxidation. Background technique [0002] As a new biological denitrification process, anaerobic ammonium oxidation has been widely studied by scientific researchers since its discovery because of its low operating cost, low sludge output, high operating load, and no need for additional carbon sources. Due to the long doubling time of anammox bacteria and the low yield coefficient of sludge, the popularization and application of anammox is greatly restricted. The domestic and foreign research on the rapid start of anammox and the enrichment of anammox bacteria mainly focus on: the selection of inoculated sludge, the design and improvement of the reactor. [0003] Anaerobic expanded granular bed reactor (EGSB) is the third generation anaerobic reactor developed on the basis of upflow anaerobic slud...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
CPCC02F3/2846C02F2301/043
Inventor 许柯毛念佳任洪强耿金菊
Owner NANJING UNIV
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