CN-224212508-U - Integration AAO-MBR sewage treatment plant

CN224212508UCN 224212508 UCN224212508 UCN 224212508UCN-224212508-U

Abstract

The utility model provides an integrated AAO-MBR sewage treatment device which comprises a control device, and an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank which are separated by a plurality of partition boards, wherein a water passing port A with a regulating valve A is arranged on the partition board between the anaerobic tank and the aerobic tank, a water passing port B with a regulating valve B is arranged on the partition board between the anoxic tank and the aerobic tank, a water inlet A with a water inlet valve A is arranged on the anaerobic tank, a water inlet B with a water inlet valve B is arranged on the anoxic tank, the aerobic tank is communicated with the anoxic tank through a backflow pipe provided with a mixed liquid backflow pump, the anaerobic tank is communicated with the sludge backflow pump through a sludge backflow pipe by a sludge backflow valve A, and the anoxic tank is communicated with the sludge backflow pump through a sludge backflow pipe by a sludge backflow valve B. The utility model can control the water inlet sequence of sewage according to the sewage quality, so that the utility model can effectively treat sewage with different quality, and the application range is effectively enlarged.

Inventors

Hu Jiangquan
LU YUPENG
QI HAIYAN
LI YONG
WANG FURONG
ZHONG MIN
NIE NING
LI SU
PENG XULONG

Assignees

中铁环境科技工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250402

Claims (6)

1. An integrated AAO-MBR sewage treatment device is characterized by comprising a control device, an anaerobic tank (1), an anoxic tank (2), an aerobic tank (3) and an MBR membrane tank (4) which are separated by a plurality of partition boards; The anaerobic treatment device is characterized in that a water passing port A with a regulating valve A (12) is formed in a partition plate between the anaerobic tank (1) and the aerobic tank (3), a water passing port B with a regulating valve B (22) is formed in a partition plate between the anoxic tank (2) and the anoxic tank (1), a water passing port C (14) is formed in a partition plate between the anaerobic tank (1) and the anoxic tank (2), a water passing port D (31) is formed in a partition plate between the aerobic tank (3) and the MBR membrane tank (4), a water inlet A with a water inlet valve A (11) is formed in the anaerobic tank (1), a water inlet B with a water inlet valve B (21) is formed in the anoxic tank (2), and a water outlet and a sludge outlet are formed in the MBR membrane tank (4); The anaerobic tank (1) is communicated with the sludge reflux pump (44) through the sludge reflux valve A (45) through the sludge reflux valve A (13), and the anoxic tank (2) is communicated with the sludge reflux pump (44) through the sludge reflux valve B (23) through the sludge reflux valve B (45); The control device is electrically connected with the water inlet valve A (11), the water inlet valve B (21), the regulating valve A (12), the regulating valve B (22), the sludge reflux valve A (13) and the sludge reflux valve B (23).
2. The integrated AAO-MBR sewage treatment device according to claim 1, further comprising a COD sensor arranged in the regulating tank and an on-line monitoring device arranged in the clean water tank, wherein the COD sensor and the on-line monitoring device are electrically connected with the control device.
3. The integrated AAO-MBR sewage treatment device of claim 2, wherein the inlet valve a and the inlet valve B are electrically operated valves.
4. An integrated AAO-MBR sewage treatment plant according to claim 3, wherein both the anaerobic tank (1) and the anoxic tank (2) are provided with baffles (15).
5. The integrated AAO-MBR sewage treatment device according to claim 4, wherein the aerobic tank (3) is provided with an aerator (32), and the aerator (32) is electrically connected with a control device.
6. The integrated AAO-MBR wastewater treatment device according to claim 5, wherein the MBR membrane tank (4) is provided with an MBR membrane module (41) and a membrane cleaning and dosing device, and the membrane cleaning and dosing device is electrically connected with the control device.

Description

Integration AAO-MBR sewage treatment plant Technical Field The utility model relates to an integrated AAO-MBR sewage treatment device, and belongs to the field of sewage treatment. Background The integrated domestic sewage treatment equipment generally adopts an AAO+MBR process, namely sewage enters an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank in sequence to carry out denitrification and dephosphorization, integrates the characteristics of the traditional biological treatment technology and the novel membrane separation technology, greatly reduces the volume of sewage treatment facilities and simultaneously optimizes the treatment effect, so that the integrated domestic sewage treatment equipment is widely applied to sewage treatment in various industries, but has the following defects: 1. The capability of coping with water quality changes is poor, namely the sewage treatment sequence of the AAO+MBR technology is fixed, sewage is treated by sequentially passing through an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank, and the sewage treatment sequence cannot be adjusted according to the change of the sewage quality, so that the treatment efficiency is unstable, and the treatment is difficult to cope with the condition of various water quality changes. 2. The application scene is limited, because the treatment efficiency of the AAO+MBR process is greatly influenced by water quality, the application scene of the AAO+MBR process is limited, and the sewage treatment requirements of different areas and under different water quality conditions are difficult to meet. Disclosure of utility model Aiming at the problems existing in the prior art, the utility model provides an integrated AAO-MBR sewage treatment device which can control the sequence of sewage entering an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank according to the sewage quality, thereby effectively treating sewage with different water qualities. In order to solve the technical problems, the technical scheme of the utility model is as follows: The utility model provides an integrated AAO-MBR sewage treatment device, which comprises a control device, and an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank which are separated by a plurality of partition boards; The partition plate between the anaerobic tank and the aerobic tank is provided with a water passing port A with a regulating valve A, the partition plate between the anoxic tank and the aerobic tank is provided with a water passing port B with a regulating valve B, the partition plate between the anaerobic tank and the anoxic tank is provided with a water passing port C, the partition plate between the aerobic tank and the MBR membrane tank is provided with a water passing port D, the anaerobic tank is provided with a water inlet A with a water inlet valve A, the anoxic tank is provided with a water inlet B with a water inlet valve B, and the MBR membrane tank is provided with a water outlet and a mud discharging port; The anaerobic tank is communicated with the sludge reflux pump through the sludge reflux pipe through the sludge reflux valve B, and the anoxic tank is communicated with the sludge reflux pump through the sludge reflux valve B through the sludge reflux pipe; the control device is electrically connected with the water inlet valve A, the water inlet valve B, the regulating valve A, the regulating valve B, the sludge reflux valve A and the sludge reflux valve B. In a specific embodiment, the system further comprises a COD sensor arranged in the regulating tank and on-line monitoring equipment arranged in the clean water tank, wherein the COD sensor and the on-line monitoring equipment are electrically connected with the control device. In a specific embodiment, the inlet valves a and B are electrically operated valves. In a specific embodiment, both the anaerobic tank and the anoxic tank are provided with baffles. In a specific embodiment, the aerobic tank is provided with an aerator, and the aerator is electrically connected with the control device. In a specific embodiment, the MBR membrane tank is provided with an MBR membrane module and a membrane cleaning and dosing device, and the membrane cleaning and dosing device is electrically connected with the control device. Compared with the prior art, the utility model has the following beneficial effects: When sewage is treated, the utility model controls the opening and closing of the water inlet valve A, the water inlet valve B, the regulating valve A, the regulating valve B, the sludge reflux valve A and the sludge reflux valve B according to the sewage quality so as to control the water inlet sequence of the sewage, thereby executing two processes, wherein when the COD concentration exceeds a preset value, the AAO-MBR process is executed, and when the COD concentration is not higher than the preset value, the inverted A