CN217732905U

CN217732905U - High-efficient nitrogen and phosphorus removal integration sewage treatment device

Info

Publication number: CN217732905U
Application number: CN202221522544.0U
Authority: CN
Inventors: 刘慧苹; 王东辉; 范广敏
Original assignee: Shandong Industry Research Institute Of Ecological Environment Co ltd
Current assignee: Shandong Industry Research Institute Of Ecological Environment Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-04
Anticipated expiration: 2032-06-17

Abstract

The utility model provides a high-efficient nitrogen and phosphorus removal integration sewage treatment device, including equalizing basin, from stirring anaerobism pond, MBR facultative aerobic tank, two heavy ponds, disinfection pond and sludge impoundment, equalizing basin and inlet tube intercommunication are provided with the elevator pump in the equalizing basin, and the elevator pump passes through the pipeline and feeds through with the water distributor of intaking in the self-stirring anaerobism pond. The utility model discloses a high-efficient nitrogen and phosphorus removal integration sewage treatment device can simplify the structure through the relation between rationally arranged equalizing basin, self-stirring anaerobism pond, MBR facultative aerobic pond, two heavy ponds, disinfection pond and the sludge impoundment, is favorable to improving sewage treatment's efficiency.

Description

High-efficient nitrogen and phosphorus removal integration sewage treatment device

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to high-efficient nitrogen and phosphorus removal integration sewage treatment device.

Background

At present, the ammonia nitrogen wastewater treatment mainly comprises the following schemes: 1. the chemical precipitation method has the defects that the chemical precipitation method is limited by the solubility product of iron phosphate and magnesium phosphate, and the dosage of the medicament is added after the ammonia nitrogen in the wastewater reaches a certain concentration, so that the removal effect is not obvious, the medicament dosage is large, the investment cost is high, more sludge is produced, and the treatment cost is higher; 2. the stripping method, however, scales are often formed in the stripping tower, the ammonia nitrogen removal efficiency is low at low temperature, secondary pollution is formed by stripped gas, and the like; 3. the chemical oxidation method utilizes an ammonia nitrogen remover to directly oxidize ammonia nitrogen into nitrogen, and the cost of the agent is higher; 4. the biological method comprises the following steps: the metabolism of microorganisms is utilized to convert organic pollutants in the wastewater into harmless substances, so that the wastewater reaches the standard and is discharged; 5. membrane separation technology: the selective permeability of the membrane is utilized to selectively separate the components in the liquid, thereby achieving the aim of removing ammonia nitrogen.

According to the above, although several conventional methods for treating ammonia nitrogen wastewater can meet certain treatment requirements, the conventional methods have respective defects, 1, the treatment cost is high; 2. equipment is complicated, the operation degree of difficulty is high, and treatment effeciency and treatment effect are not ideal, and current sewage treatment integration equipment handles ammonia nitrogen content relatively lower, and the better domestic sewage of biochemical nature can satisfy the emission requirement, but handles high ammonia nitrogen, low carbon nitrogen ratio sewage and hardly reaches the emission requirement. Based on the above, research and development are needed to design an integrated device and a treatment method thereof suitable for treating sewage with high ammonia nitrogen and low carbon nitrogen ratio.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a high-efficiency denitrification and dephosphorization integrated sewage treatment device.

The technical scheme of the utility model as follows:

the utility model provides a high-efficient nitrogen and phosphorus removal integration sewage treatment device, includes equalizing basin, from stirring anaerobism pond MBR facultative aerobic pool, two heavy ponds, disinfection pond and sludge impoundment, equalizing basin and inlet tube intercommunication, be provided with the elevator pump in the equalizing basin, the elevator pump pass through the pipeline with from stirring the water distributor intercommunication of intaking in the anaerobism pond, be provided with a plurality of perpendicular baffling boards in the stirring anaerobism pond, be connected with biogas processing apparatus from stirring the top of anaerobism pond, be provided with natural pond liquid reflux unit from stirring the below of anaerobism pond, natural pond liquid reflux unit includes backwash pump and backflow pipeline, the backwash pump with backflow pipeline connects, backflow pipeline's both ends respectively with from stirring anaerobism pond water inlet and delivery port intercommunication, be provided with the membrane module aerator in the MBR facultative aerobic pool, MBR membrane module aerator includes MBR filler and aeration pipeline, MBR membrane module aerator pass through the tuber pipe with aeration fan intercommunication, two heavy ponds with MBR facultative tank intercommunication, two heavy ponds's bottom is provided with sludge hopper, sludge hopper and sludge pump's intercommunication, sludge pump's exit end respectively with from stirring the anaerobism pond intercommunication goes out the sewage pump with two play water outlet pipe intercommunication.

As a preferred scheme, the water distributor of intaking is the multiple spot water distribution formula to can make the water distributor of intaking water distribution uniform water, one side from stirring anaerobism pond is provided with overflow triangular weir, from stirring anaerobism pond with pass through between the MBR facultative aerobe pond overflow triangular weir intercommunication, overflow triangular weir is favorable to even play water.

In addition, the MBR filler filling rate of the MBR membrane module aerator is 40-50%.

Further, still include the sludge pump, the sludge impoundment with the sludge pump intercommunication, the sludge pump can be with the muddy water periodic discharge in the sludge impoundment.

Furthermore, the disinfectant adding device is further included, a medicine adding port of the disinfectant adding device is communicated with a water inlet of the disinfection pool, and the disinfectant adding device can regularly and quantitatively add medicines into the disinfection pool.

Preferably, the device also comprises an equipment room, and the sludge discharge pump, the reflux pump, the aeration fan, the sludge pump and the disinfectant adding device are all arranged in the equipment room, so that the device is reasonable in structure and convenient to maintain.

Preferably, still be provided with the switch board in the equipment room, the switch board respectively with elevator pump, marsh gas processing apparatus, natural pond liquid backwash pump, aeration fan, sludge pump, play water pump and sludge pump communication connection, the switch board can realize remote control to equipment such as elevator pump, marsh gas processing apparatus, natural pond liquid backwash pump, aeration fan, sludge pump, play water pump and sludge pump.

Furthermore, the device also comprises a central water distributor, the central water distributor is arranged in the secondary sedimentation tank, the central water distributor is communicated with the effluent weir of the MBR facultative aerobic tank through a pipeline, and the central water distributor can ensure that the water distribution in the secondary sedimentation tank is uniform.

The embodiment of the utility model provides a high-efficient nitrogen and phosphorus removal integration sewage treatment device sets up a plurality of baffling boards in stirring the anaerobism pond certainly, and the waste water of handling can be in the anaerobism pond along the baffling board do the up-and-down motion to need not mechanical mixing arrangement, just can realize stirring the mixed action certainly, and then can simplify the structure. Secondly, the biogas slurry reflux device can reasonably control the ascending flow velocity in the anaerobic tank, and the anaerobic tank is ensured to have good mud-water mixing conditions. And, the mud fill communicates with the entrance point of sludge pump, and the exit end of sludge pump communicates with stirring anaerobism pond and sludge impoundment respectively certainly, makes two sludge in the pond partly get into the sludge impoundment, and another part gets into and continues to handle from stirring anaerobism pond to can improve treatment effeciency. In addition, the MBR facultative aerobic tank utilizes the advantages of high operation load and strong impact resistance of the biomembrane method, and avoids the defect that the operation of the activated sludge method is easily influenced by flow and water quality change, thereby playing a role in stable and efficient purification treatment on sewage, greatly reducing the discharge amount of high ammonia-nitrogen wastewater and the pollution of the wastewater to the environment, effectively saving water resources and meeting the requirements of sustainable development.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of various embodiments of the present invention will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters denote like or similar elements, and wherein:

FIG. 1 shows a schematic structural diagram of an integrated sewage treatment apparatus for denitrification and dephosphorization with high efficiency provided by an embodiment of the present invention.

Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is as follows:

1 regulating tank, 2 self-stirring anaerobic tank, 3MBR facultative aerobic tank, 4 secondary sedimentation tank, 5 disinfection tank, 6 sludge tank, 7 water inlet pipe, 8 lift pump, 9 pipeline, 10 baffle plate, 11 overflow triangular weir, 12 biogas processing device, 13 biogas slurry reflux unit, 14 water inlet distributor, 15 aeration fan, 16MBR membrane module aerator, 17 active sludge, 18 central water distributor, 19 sludge hopper, 20 sludge pump, 21 disinfectant adding device, 22 water outlet pipe, 23 water outlet pump, 24 sludge pump, 25 equipment room, 26 control cabinet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the embodiment of the utility model provides a high-efficient nitrogen and phosphorus removal integration sewage treatment device, including equalizing basin 1, from stirring anaerobism pond 2, MBR aerobic tank 3 that holds concurrently oxygen, two sink ponds 4, disinfection pond 5 and sludge impoundment 6, equalizing basin 1 and inlet tube 7 intercommunication, be provided with elevator pump 8 in the equalizing basin 1, elevator pump 8 is through pipeline and the 14 intercommunication of intaking in stirring anaerobism pond 2, be provided with a plurality of perpendicular baffling boards 10 in the self-stirring anaerobism pond 2, the top from stirring anaerobism pond 2 is connected with biogas processing apparatus 12, the below from stirring anaerobism pond 2 is provided with natural pond liquid reflux unit 13, natural pond liquid reflux unit 13 includes backwash pump 1301 and backflow pipeline 1302, MBR backwash pump 1301 is connected with backflow pipeline 1302, backflow pipeline 1302's both ends respectively with 2 water inlets and delivery ports intercommunication from stirring anaerobism pond 2, be provided with membrane module aerator 16 in the aerobic tank 3 that holds concurrently oxygen, MBR aerator 16 includes MBR filler and aeration pipeline, MBR filler and aeration pipe, MBR reflux pipe 16 passes through MBR and 15 intercommunication, two aerobic tank 4 and aeration pipe, two aeration pump 23 intercommunication pipes of aeration pump 19 are provided with aeration pump 20 and aeration pump 20 in the aeration tank, it feeds through the export end from stirring sludge impoundment pond 20 and aeration pump 20 intercommunication, it feeds through aeration pump 23 and the aeration pump 20 and the export end to go out the aeration pump of aeration pump intercommunication of aeration pump 23 in the aeration pond, it feeds through the aeration tank to go out the aeration pump 23.

In some embodiments, the water inlet distributor 14 is a multi-point distribution type, which is beneficial to make the water distribution in the self-stirring anaerobic tank 2 more uniform and ensure the water distribution effect of the self-stirring anaerobic tank 2, and an overflow triangular weir 11 is arranged on one side of the self-stirring anaerobic tank 2 and is communicated with the MBR facultative aerobic tank 3 through the overflow triangular weir 11, so that the water outlet from the self-stirring anaerobic tank 2 is uniform and stable and the water quality of the water outlet from the self-stirring anaerobic tank 2 is ensured.

Preferably, the MBR membrane module aerator 16 has an MBR filler filling rate of 40% -50%, and the MBR membrane module aerator can intercept sludge and macromolecular organic matters by limiting the MBR filler filling rate, so that the treatment efficiency of the MBR-facultative aerobic tank 3 is improved.

It should be noted that in the actual operation process of the MBR filler, after the added activated sludge 17 is acclimated, different biological species are arranged inside and outside the membrane surface, aerobic bacteria grow inside the membrane surface, facultative bacteria grow outside the membrane surface, and each membrane is used as a small-sized reactor, so that short-range synchronous nitrification and denitrification can be realized, and the total nitrogen removal rate is further improved.

In addition, the MBR membrane module aerator 16 adopts a membrane aeration mode, so that the oxygen filling amount can be further reduced, and the unit energy consumption can be further reduced.

Further, the utility model discloses sewage treatment device still includes sludge pump 24, sludge impoundment 6 and sludge pump 24 intercommunication, and sludge pump 24 can guarantee that the mud in the sludge impoundment 6 is in time and regularly discharges, avoids the sludge impoundment to block up.

Further, the utility model discloses sewage treatment device still includes disinfectant and throws with ware 21, and disinfectant is thrown with 21 add the medicine mouth and is disinfected the water inlet intercommunication in pond 5, and disinfectant throws with ware 21 and can regularly quantitative put in disinfectant to disinfection 5 in to can improve disinfection's efficiency.

Additionally, the utility model discloses sewage treatment device still includes the equipment room 25, and in mud pump 24, backwash pump 1301, aeration fan 15, sludge pump 20 and disinfectant throw-in ware 21 all set up equipment room 25, equipment such as mud pump 24, backwash pump 1301 can be protected to equipment room 25 to convenient equipment such as mud pump 24, backwash pump 1301 maintain and safeguard.

Further, a control cabinet 26 is further arranged in the equipment room 25, and the control cabinet 26 is in communication connection with the lifting pump 8, the biogas processing device 12, the biogas slurry reflux pump 1301, the aeration fan 15, the sludge pump (20), the water outlet pump 23 and the sludge discharge pump 24 respectively so as to be capable of timely mastering the working state of the equipment such as the sludge discharge pump 24 and the reflux pump 1301 and remotely controlling the equipment such as the sludge discharge pump 24 and the reflux pump 1301.

Optionally, the utility model discloses sewage treatment device still includes central water-locator 18, and central water-locator setting is in two heavy ponds 4, and central water-locator 18 communicates through the play mill weir of pipeline and MBR facultative aerobic pond to it is even to be favorable to improving the water distribution of two heavy ponds 4, guarantees the water distribution effect.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make possible variations and modifications of the present invention without departing from the spirit and scope of the present invention using the methods and technical contents disclosed above.

Those skilled in the art will appreciate that the details not described in the present specification are well within the skill of those skilled in the art.

Claims

1. The efficient nitrogen and phosphorus removal integrated sewage treatment equipment is characterized by comprising an adjusting tank (1), a self-stirring anaerobic tank (2), an MBR facultative aerobic tank (3), a secondary sedimentation tank (4), a disinfection tank (5) and a sludge tank (6), wherein the adjusting tank (1) is communicated with a water inlet pipe (7), a lifting pump (8) is arranged in the adjusting tank (1), the lifting pump (8) is communicated with a water inlet distributor (14) in the self-stirring anaerobic tank (2) through a pipeline, a plurality of vertical baffle plates (10) are arranged in the self-stirring anaerobic tank (2), a biogas slurry reflux device (13) is arranged above the self-stirring anaerobic tank (2), the biogas slurry reflux device (13) comprises a biogas slurry reflux pump (1301) and a reflux pipeline (MBR), the reflux pump (1301) is connected with the MBR reflux pipeline (1302, two ends of the reflux pipeline (1302 are respectively communicated with the water inlet self-stirring anaerobic tank (2) and an aeration water outlet pipe (16), and an aeration pipe assembly (16) is arranged in the aeration reflux MBR anaerobic tank (3), two sink pond (4) with MBR facultative aerobic pond (3) intercommunication, the bottom of two sink ponds (4) is provided with sludge bucket (19), sludge bucket (19) and sludge pump's (20) entrance point intercommunication, the exit end of sludge pump (20) respectively with from stirring anaerobism pond (2) with sludge impoundment (6) intercommunication, disinfection pond (5) through the overflow pipe with two sink ponds (4) intercommunication, be provided with out water pump (23) in disinfection pond (5), go out water pump (23) and outlet pipe (22) intercommunication.

2. The integrated sewage treatment equipment for denitrification and dephosphorization with high efficiency as claimed in claim 1, wherein the water inlet distributor (14) is of a multi-point distribution type, one side of the self-stirring anaerobic tank (2) is provided with an overflow triangular weir (11), and the self-stirring anaerobic tank (2) is communicated with the MBR facultative aerobic tank (3) through the overflow triangular weir (11).

3. The integrated sewage treatment equipment for high efficiency nitrogen and phosphorus removal according to claim 1, wherein the MBR membrane module aerator (16) has an MBR filler filling rate of 40-50%.

4. The integrated sewage treatment equipment for high efficiency nitrogen and phosphorus removal according to claim 1, further comprising a sludge discharge pump (24), wherein the sludge tank (6) is communicated with the sludge discharge pump (24).

5. The integrated sewage treatment equipment for high efficiency nitrogen and phosphorus removal as recited in claim 1 further comprising a disinfectant feeder (21), wherein a feeding port of the disinfectant feeder (21) is communicated with a water inlet of the disinfection tank (5).

6. The integrated sewage treatment equipment for high efficiency nitrogen and phosphorus removal according to claim 4, further comprising an equipment room (25), wherein the sludge discharge pump (24), the reflux pump (1301), the aeration fan (15), the sludge pump (20) and the disinfectant adder (21) are all arranged in the equipment room (25).

7. The efficient nitrogen and phosphorus removal integrated sewage treatment equipment according to claim 6, wherein a control cabinet (26) is further arranged in the equipment room (25), and the control cabinet (26) is in communication connection with the lift pump (8), the methane treatment device (12), the methane liquid reflux pump (1301), the aeration fan (15), the sludge pump (20), the water outlet pump (23) and the sludge discharge pump (24) respectively.

8. The integrated sewage treatment equipment for denitrification and dephosphorization with high efficiency as claimed in claim 1, further comprising a central water distributor (18), wherein the central water distributor is arranged in the secondary sedimentation tank (4), and the central water distributor (18) is communicated with an effluent weir of the MBR-facultative aerobic tank (3) through a pipeline.