CN213171672U

CN213171672U - A2/O and deformation process integrated sewage treatment equipment

Info

Publication number: CN213171672U
Application number: CN202022009749.6U
Authority: CN
Inventors: 户志轩; 王瑜; 刘营; 宋泽宇; 张亮; 邓明帅
Original assignee: Henan Licheng Environmental Technology Co ltd
Current assignee: Henan Licheng Environmental Technology Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-11
Anticipated expiration: 2030-09-15

Abstract

The utility model provides a A2O and deformation process integration sewage treatment device, including the anaerobism pond, oxygen deficiency pond, good oxygen pond, the sedimentation tank that arrange in proper order, wherein be provided with clear water export and mud outlet on the sedimentation tank, be connected with mud return line A on the mud outlet, good oxygen pond is provided with interior backflow pipeline A to the oxygen deficiency pond, install mud backwash pump B and valve C on the mud return line B, the oxygen deficiency pond still is provided with interior backflow pipeline B to the anaerobism pond, install interior reflux pump B and valve D on the interior backflow pipeline B, the oxygen deficiency pond is provided with the delivery pump to the anaerobism pond, the oxygen deficiency pond cut apart into two communicating oxygen deficiency ponds A, oxygen deficiency pond B, dispose the baffle with oxygen deficiency pond B, when operation A2O technology, UCT technology, do not set up the baffle in the oxygen deficiency pond B, when operation MUCT technology, be provided with the baffle in the oxygen deficiency pond. The equipment can improve the processing capacity of the equipment.

Description

A2/O and deformation process integrated sewage treatment equipment

Technical Field

The utility model relates to an A2/O technology and deformation technology integrated sewage treatment equipment thereof, belonging to the field of water environment treatment.

Background

The traditional A2/O (Anaerobic-Oxic) process is to embed an Anoxic pond on the basis of the original biological phosphorus removal A/O (Anaerobic-Oxic) process. The sewage is subjected to nitration reaction in the aerobic tank, the mixed liquid in the aerobic tank flows back to the anoxic tank for denitrification, the phosphorus-containing sludge in the sedimentation tank partially flows back to enter the anaerobic tank together with raw water for anaerobic phosphorus release, and finally the phosphorus is taken in the aerobic tank aerobically, so that the activated sludge system with the series anaerobic-anoxic-aerobic phases can simultaneously realize the denitrification and dephosphorization. The A2/O process is the starting point of many nitrogen and phosphorus removal combined processes at present, and is widely applied because the process is simple and convenient to operate, and can simultaneously realize nitrogen and phosphorus removal in the same system.

The UCT (university of Cape town) process is a nitrogen and phosphorus removal process similar to the A2/O process developed by the university of Cape Town in south Africa. The UCT process is different from the A2/O process in that the sludge in the sedimentation tank flows back to the anoxic tank, nitrate carried in the sludge is denitrified in the anoxic tank, and the influence on the dephosphorization effect when the sludge flows back to the anaerobic tank is avoided. Meanwhile, in order to make up for the loss of sludge in the anaerobic tank, sludge backflow from the anoxic tank to the anaerobic tank is additionally arranged. The phosphorus removal effect of the UCT process is greatly improved.

The MUCT process is an improved UCT process. In the MUCT process, the reflux of the sludge and the mixed liquor is controlled independently, the anoxic tank is divided into two parts which are obviously different from the traditional A2/O process, 1, the two sets of internal reflux are mutually independent, 2, the reflux sludge enters the 1 st anoxic section, and the partial effluent mixed liquor of the 1 st anoxic section reflows to the anaerobic section. In the MUCT process, the phenomena of interfering the anaerobic release of phosphorus and reducing the phosphorus removal rate due to the backflow of NO3-N in the backflow sludge to the anaerobic section can be avoided, and the residence time of Dissolved Oxygen (DO) and the anoxic section in the anaerobic zone can be independently controlled, so that the high-efficiency and stable nitrogen and phosphorus removal effect can be realized more easily.

The three processes have advantages, the existing water treatment equipment is generally designed for only one process, and when raw water pollutants are abnormal, other processes cannot be operated, so that the water treatment capacity of the equipment is limited.

Disclosure of Invention

The utility model aims to overcome the problems existing in the operation process in the existing water treatment equipment and provide an A2/O and deformation process integrated sewage treatment equipment.

In order to realize the purpose of the utility model, the following technical proposal is adopted: A2/O and deformation process integrated sewage treatment equipment comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank which are sequentially arranged, wherein the sedimentation tank is provided with a clear water outlet and a sludge outlet, the sludge outlet is connected with a sludge return pipeline A, the sludge return pipeline A is connected with a sludge return pump A, the sludge return pipeline A is connected to the anaerobic tank through a valve A, the aerobic tank is provided with an internal return pipeline A towards the anoxic tank, the internal return pipeline A is connected with the internal return pump A, the sludge return pipeline A is also connected to the anoxic tank through a valve B, the anoxic tank is provided with a sludge return pipeline B towards the anaerobic tank, the sludge return pipeline B is provided with a sludge return pump B and a valve C, the anoxic tank and the anaerobic tank are also provided with an internal return pipeline B, the internal return pipeline B is provided with an internal return pump B and a valve D, the anoxic tank is provided with a delivery pump towards the anaerobic tank, the anoxic tank is divided into two communicated anoxic tanks A and B, the internal return pipeline A is connected to the anoxic tank A and the anoxic tank B through a valve E and a valve F respectively, a partition plate is configured with the anoxic tank B, when an A2/O process and a UCT process are operated, the partition plate is not arranged in the anoxic tank B, and when an MUCT process is operated, the partition plate is arranged in the anoxic tank.

Further, the method comprises the following steps of; all valves are electric valves, and all valves and all pumps are connected to a controller for control.

The utility model discloses an actively beneficial technological effect lies in: in the integrated treatment equipment, the operation of an A2/O process, a UCT process and an MUCT process can be respectively realized by controlling the pump and the valve, different types of wastewater can be treated in a targeted manner, and the treatment capacity of the equipment is improved.

Drawings

Fig. 1 is a schematic block diagram of the present invention.

Detailed Description

In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which the reference symbols are: 1: a sludge reflux pump B; 2: a delivery pump; 3: a sludge reflux pump A; 4: an internal reflux pump A; 5: a valve C; 6: a valve A; 7: a valve B; 8: a valve E; 9: a valve F; 10: an internal reflux pump B; 11: a valve D; 12: a sludge return pipeline A; 13: a sludge return pipeline B; 14: an internal return line A; 15: an internal return line B; 101: an anaerobic tank; 102: an anoxic tank A; 103: an anoxic tank B; 104: an aerobic tank; 105: a sedimentation tank; 106: a sludge outlet; 107: and a clear water outlet.

As shown in the attached drawing, the A2/O and deformation process integrated sewage treatment equipment comprises an anaerobic tank 101, an anoxic tank, an aerobic tank 104 and a sedimentation tank 105 which are sequentially arranged, wherein the sedimentation tank is provided with a clear water outlet 107 and a sludge outlet 106, the sludge outlet 106 is connected with a sludge return pipeline A12, the sludge return pipeline A is connected with a sludge return pump A3, the sludge return pipeline A12 is connected to the anaerobic tank 101 through a valve A6, the aerobic tank 104 is provided with an internal return pipeline A14 towards the anoxic tank, the internal return pipeline A is connected with an internal return pump A4, the sludge return pipeline A is also connected to the anoxic tank through a valve B7, the anoxic tank is provided with a sludge return pipeline B13 towards the anaerobic tank, the sludge return pipeline B is provided with a sludge return pump B1 and a valve C5, the anoxic tank to the anaerobic tank are also provided with an internal return pipeline B15, the internal return pipeline B is provided with an internal return pump B10 and a valve D11, the anaerobic tank is provided with a delivery pump 2, the anaerobic tank is divided into two communicated anaerobic tanks A102 and B103, an internal return pipeline A is connected to the anaerobic tanks A102 and B103 through a valve E8 and a valve F9 respectively, a partition plate is configured with the anaerobic tank B, when an A2/O process and a UCT process are operated, the partition plate is not arranged in the anaerobic tank B, and when an MUCT process is operated, the partition plate is arranged in the anaerobic tank. All valves are electric valves, and all valves and all pumps are connected to a controller for control.

This A²The combined sewage treatment reactor of the/O, UCT and MUCT technologies comprises the following steps: conveying the sewage into the integrated reactor through a water inlet device, and sequentially passing through an anaerobic zone, an anoxic zone, an aerobic zone and a precipitation zone; arranging a microporous aerator in the aerobic tank, and configuring two blowers to aerate the aerobic zone, wherein each corridor of the aerobic tank is provided with a submersible plug flow stirrer to control the dissolved oxygen in water to be 2-3ml/L because the corridors of the aerobic tank are longer; the water inlet is provided with a water quality monitoring device, and the water quality monitoring device is changed according to the sewage concentration index, which is the prior application technology in the prior water treatment process. The reflux pipeline valve and the reflux pump are opened or closed by the controller to flexibly switch among various process technologies.

Operation A²In the O process, the process has low operation energy consumption. Starting two valves of a sludge return pump A3, an internal return pump A4, a water delivery pump 2, a valve A6 and a valve E8.

When the UCT process is needed, the sludge reflux pump B1, the sludge reflux pump A3, the internal reflux pump A4, the water delivery pump 2, the valve C5, the valve B7 and the valve E8 are started to operate.

When the MUCT process is needed, a separation baffle is placed in a reserved groove of an anoxic pond B to quickly separate an anoxic space, and in addition, the optimization of external reflux sludge denitrification and internal reflux nitrification liquid denitrification is realized by starting and operating a sludge reflux pump A3, an internal reflux pump A4, an internal reflux pump B10, a water delivery pump 2, a valve B7, a valve F9 and a valve D11, so that the efficient and stable denitrification and dephosphorization effect is obtained.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims

1. The utility model provides a A2O and deformation process integration sewage treatment device, including the anaerobism pond that arranges in proper order, the oxygen deficiency pond, good oxygen pond, the sedimentation tank, wherein be provided with clear water export and mud export on the sedimentation tank, be connected with mud return line A on the mud export, be connected with mud return pump A on the mud return line A, mud return line A is connected to the anaerobism pond through valve A, good oxygen pond is provided with interior backflow pipeline A to the oxygen deficiency pond, be connected with interior backflow pump A on the interior backflow pipeline A, its characterized in that: the sludge return line A is further connected to the anoxic tank through a valve B, the anoxic tank is provided with a sludge return line B to the anaerobic tank, the sludge return line B is provided with a sludge return pump B and a valve C, the anoxic tank is further provided with an inner return line B to the anaerobic tank, the inner return line B is provided with an inner return pump B and a valve D, the anoxic tank is provided with a delivery pump to the anaerobic tank, the anoxic tank is divided into two communicated anoxic tanks A and B, the inner return line A is connected to the anoxic tank A and the anoxic tank B through a valve E and a valve F respectively, a partition plate is configured with the anoxic tank B, when an A2/O process and a UCT process are operated, the partition plate is not arranged in the anoxic tank B, and when the MUCT process is operated, the partition plate is arranged in the anoxic tank.

2. The integrated sewage treatment equipment for A2/O and deformation process according to claim 1, wherein: all valves are electric valves, and all valves and all pumps are connected to a controller for control.