CN211078812U

CN211078812U - High-efficient intelligent sewage treatment plant

Info

Publication number: CN211078812U
Application number: CN201921720684.7U
Authority: CN
Inventors: 李雅山; 徐桃乃
Original assignee: Guangzhou Huotian Environmental Protection Equipment Engineering Co ltd
Current assignee: Guangzhou Huotian Environmental Protection Equipment Engineering Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-24
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a high-efficient intelligent sewage treatment plant, which comprises a tank body, the jar body is equipped with pretreatment tank, anaerobism pond, oxygen deficiency pond, good oxygen pond, sedimentation tank, filtering ponds, disinfection pond and first equipment room by preceding respectively to the back, pretreatment tank's front end is equipped with the water inlet, the rear end department of first equipment room is equipped with the delivery port, install the nitration liquid pump in the good oxygen pond, the nitration liquid pump is through nitrifying liquid back flow intercommunication the oxygen deficiency pond. The device has compact structure, scientific and reasonable layout and stable and efficient sewage treatment effect. By additionally arranging the pretreatment area at the front end of the A2/O process, when the sludge flows back to the pretreatment area, denitrification reaction occurs in the pretreatment area, and nitrate and oxygen brought by the sludge backflow can be greatly consumed. Through the improvement innovation, the effect of the traditional A2/O process on decarburization and dephosphorization can be improved.

Description

High-efficient intelligent sewage treatment plant

Technical Field

The utility model relates to a sewage treatment technical field specifically is a high-efficient intelligent sewage treatment plant.

Background

With the rapid development of modernization, daily production activities and daily life generate sewage which is increased year by year, and especially domestic sewage has a plurality of pollution sources and large discharge, so that urban sewage pipelines have heavier load and are often blocked by accumulated silt.

At present, the A2/O activated sludge method (anaerobic zone + anoxic zone + aerobic zone + activated sludge) is generally adopted for urban sewage treatment, but the treatment method has the defects that: the A2/O process has poor dephosphorization effect when the denitrification effect is good, and vice versa, and is difficult to simultaneously obtain good deoxidation dephosphorization effect. The reason for this is that: the return sludge in the process completely enters an anaerobic section, a large return ratio (generally 40-100%) is required for maintaining a low sludge load so as to ensure good nitrification of the system, but the return sludge also brings a large amount of nitrate into an anaerobic tank, and phosphorus is released by phosphorus accumulating bacteria under the anaerobic condition and simultaneously soluble BOD5 exists. When a large amount of nitrate exists in the anaerobic section, denitrifying bacteria can perform denitrification by taking organic matters as carbon sources, and start anaerobic release of phosphorus after complete denitrification, so that the effective volume of the anaerobic release of phosphorus in the anaerobic section is greatly reduced, the phosphorus removal effect is poor, and the denitrification effect is good. On the contrary, if the nitrification of the aerobic section is not good, the nitrate entering the anaerobic section along with the return sludge is reduced, the anaerobic environment of the anaerobic section is improved, and the phosphorus can be fully released in an anaerobic manner, so that the phosphorus removal effect is good, but the denitrification effect is not good because the nitrification is incomplete. Therefore, the A2/O process cannot simultaneously achieve good effects in nitrogen and phosphorus removal. In addition, the existing sewage treatment device has the defect of weak impact resistance of activated sludge, and sometimes the water quantity is suddenly increased to cause the increase of water inflow, so that the activated sludge is dispersed and is cultured again. At least one month or two months, sometimes the content index of the water inlet pollutants is suddenly increased, and the original activated sludge concentration is insufficient to deal with the suddenly increased pollutants, so that the effluent cannot reach the standard.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects mentioned in the prior art, the utility model provides a sewage treatment device with high efficiency and intelligence.

The utility model discloses a realize like this: the efficient intelligent sewage treatment device comprises a tank body, wherein the tank body is respectively provided with a pretreatment tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, a filtering tank, a disinfection tank and a first equipment room from front to back, the front end of the pretreatment tank is provided with a water inlet, a first partition plate is arranged between the pretreatment tank and the anaerobic tank, and the lower part of the first partition plate is provided with a first water through hole; a second partition plate is arranged between the anaerobic tank and the anoxic tank, and a second water through hole is formed in the upper part of the second partition plate; a third partition plate is arranged between the anoxic tank and the aerobic tank, and a third water through hole is formed in the upper part of the third partition plate; a fourth partition plate is arranged between the aerobic tank and the sedimentation tank, a flow guide pipe is arranged on the fourth partition plate, the inlet end of the flow guide pipe is arranged at the upper part of the aerobic tank, and the outlet end of the flow guide pipe is arranged at the lower part of the sedimentation tank; a fifth clapboard is arranged between the sedimentation tank and the filtering tank, and a fourth water through hole is arranged at the upper part of the fifth clapboard; a sixth partition plate is arranged between the filtering tank and the disinfecting tank, and a fifth water through hole is formed in the lower part of the sixth partition plate; a seventh partition plate is arranged between the disinfection tank and the first equipment room, a water outlet is formed in the rear end of the first equipment room, a water drainage pipe is installed on the seventh partition plate, the inlet end of the water drainage pipe is arranged on the upper portion of the disinfection tank, and the outlet end of the water drainage pipe is communicated with the water outlet.

Further, an ultraviolet sterilizer and a (sodium hypochlorite) doser are installed in the first equipment room, and the ultraviolet sterilizer is installed on the drain pipe and is used for performing ultraviolet sterilization on the sewage; the (sodium hypochlorite) doser is communicated with the disinfection tank through a doser pipe, and the doser is used for dosing and disinfecting sewage in the disinfection tank.

Further, install the mud backwash pump in the sedimentation tank, the mud backwash pump passes through the mud back flow intercommunication preliminary treatment pond.

Further, still be equipped with the sludge impoundment on the jar body, the sludge impoundment is arranged in the upper portion of the jar body, the mud backwash pump passes through mud delivery pipe intercommunication the sludge impoundment, be equipped with governing valve/control valve on the mud delivery pipe.

Further, a nitrifying liquid pump is installed in the aerobic tank, and the nitrifying liquid pump is communicated with the anoxic tank through a nitrifying liquid return pipe.

The anaerobic tank is internally provided with a three-dimensional elastic filler, the aerobic tank is internally provided with a suspended filler, the filler is added because the filler is a novel bioactive carrier, the filler adopts a scientific formula, a plurality of trace elements which are beneficial to the rapid attachment growth of microorganisms are fused in a high polymer material according to different sewage properties, the filler is modified and constructed through a special process, the microorganisms in water continuously attach and grow on the inner surface and the outer surface of the filler to form a biological membrane, the number and the variety of the microorganisms attached to the surface and the inner part of the filler are large, the sludge concentration can reach 5-10 times of the sludge concentration of a common activated sludge method, the total mass concentration of the sludge in the aerobic tank can reach 30-40 g/L to the maximum, the filler freely rotates under the turning of mixed liquid in a reactor, the biological membrane is fully contacted with pollutants in a water body and decomposed to purify the water quality, and the defects of impact resistance, load resistance and the like of the traditional activated sludge method can be overcome through the improvement and innovation, and the stability of the sewage treatment effect can be improved.

Furthermore, the inclined tube filler is arranged in the sedimentation tank, the filler wet circumference is large, the hydraulic radius is small, the laminar flow state is good during operation, the particle sedimentation is not disturbed by turbulent flow, the separation of particles and water can be accelerated, the sedimentation distance of the particles is shortened, and the solid-liquid separation is better realized.

Furthermore, fillers of gravels, active carbon, quartz sand and the like are arranged in the filter tank, and sewage is in clearance contact with microbial films growing on the surfaces of the fillers in the filter tank, so that the sewage is purified.

Further, a first aeration pipe is installed at the bottom of the anoxic tank, a second aeration pipe is installed at the bottom of the aerobic tank, a second equipment room is arranged on the tank body, a control cabinet and a blower are arranged in the second equipment room, and the blower is respectively communicated with the first aeration pipe and the second aeration pipe through air pipes. Through the aperture on the aeration pipe, release air, to anaerobism pond and the aeration in good oxygen pond, the main purpose has two, one, the stirring, and the organic pollutant in aquatic is better contacts with activated sludge. Secondly, the sewage is oxygenated, and the microorganisms in the water biochemically degrade organic pollutants, so that oxygen is needed to participate.

The utility model has the advantages that: the device has compact structure and scientific and reasonable layout, the nitrified liquid flows back to the anoxic tank for denitrification through the nitrification liquid return pipe for air stripping by the nitrification liquid pump 41 of the aerobic tank, and the sewage treatment effect is stable and efficient. By additionally arranging a pretreatment area (pretreat) at the front end of the A2/O process, when sludge flows back to the pretreatment area, denitrification reaction occurs in the pretreatment area, and nitrate and oxygen brought by sludge backflow can be greatly consumed. Through the improvement innovation, the effect of the traditional A2/O process on decarburization and dephosphorization can be improved.

Drawings

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

Detailed Description

In order to facilitate understanding of the present invention, the efficient intelligent sewage treatment apparatus of the present embodiment will be described more fully with reference to the accompanying drawings. The drawings of the embodiment show a preferred embodiment of the sewage treatment device. However, the high efficiency intelligent wastewater treatment plant of the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1, the high-efficiency intelligent sewage treatment device comprises a tank body, wherein the tank body is respectively provided with a pretreatment tank 1, an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4, a sedimentation tank 5, a filter tank 6, a disinfection tank 7 and a first equipment room 8 from front to back, the front end of the pretreatment tank 1 is provided with a water inlet 100, a first partition plate is arranged between the pretreatment tank 1 and the anaerobic tank 2, and the lower part of the first partition plate is provided with a first water through hole 101; a second partition plate is arranged between the anaerobic tank 2 and the anoxic tank 3, and a second water through hole 102 is formed in the upper part of the second partition plate; a third partition plate is arranged between the anoxic tank 3 and the aerobic tank 4, and a third water through hole 103 is formed in the upper part of the third partition plate; a fourth partition plate is arranged between the aerobic tank 4 and the sedimentation tank 5, a draft tube 104 is arranged on the fourth partition plate, the inlet end of the draft tube 104 is arranged at the upper part of the aerobic tank 4, and the outlet end of the draft tube 104 is arranged at the lower part of the sedimentation tank 5; a fifth clapboard is arranged between the sedimentation tank 5 and the filtering tank 6, and a fourth water through hole 105 is arranged at the upper part of the fifth clapboard; a sixth partition plate is arranged between the filtering tank 6 and the disinfecting tank 7, and a fifth water through hole 106 is arranged at the lower part of the sixth partition plate; a seventh partition plate is arranged between the disinfection tank 7 and the first equipment room 8, a water outlet 108 is arranged at the rear end of the first equipment room, a water outlet pipe 107 is arranged on the seventh partition plate, the inlet end of the water outlet pipe is arranged at the upper part of the disinfection tank, the outlet end of the water outlet pipe 107 is communicated with the water outlet 108, an ultraviolet sterilizer 81 and a (sodium hypochlorite) doser 82 are arranged in the first equipment room 8, the ultraviolet sterilizer 81 is arranged on the water outlet pipe 107, and ultraviolet sterilization is carried out on the sewage; (sodium hypochlorite) doser 82 is through adding the pencil intercommunication disinfection pond 7, and the sewage in the disinfection pond is thrown the medicine and is disinfected, install sludge reflux pump 51 in the sedimentation tank 5, sludge reflux pump 51 passes through mud back flow 510 intercommunication pretreatment tank 1. A nitrifying liquid pump 41 is installed in the aerobic tank 4, and the nitrifying liquid pump 41 is communicated with the anoxic tank 3 through a nitrifying liquid return pipe.

Furthermore, a three-dimensional elastic filler is arranged in the anoxic tank 3, a suspended filler is arranged in the aerobic tank 4, an inclined tube filler is arranged in the sedimentation tank 5, and fillers of gravels, activated carbon, quartz sand and the like are arranged in the filtering tank 3.

Further, the tank body is also provided with a sludge tank 9, the sludge tank 9 is arranged at the upper part of the tank body, the sludge return pump 51 is communicated with the sludge tank 9 through a sludge discharge pipe 511, and the sludge discharge pipe 511 is provided with a regulating valve/control valve 512.

Further, a first aeration pipe 30 is installed at the bottom of the anoxic tank 3, a second aeration pipe 40 is installed at the bottom of the aerobic tank 4, a second equipment room 10 is arranged on the tank body, a control cabinet 120 and a blower 110 are arranged in the second equipment room 10, and the blower 110 is respectively communicated with the first aeration pipe 30 and the second aeration pipe 40 through air pipes. Through the aperture on the aeration pipe, release air, to anaerobism pond and the aeration in good oxygen pond, the main purpose has two, one, the stirring, and the organic pollutant in aquatic is better contacts with activated sludge. Secondly, the sewage is oxygenated, and the microorganisms in the water biochemically degrade organic pollutants, so that oxygen is needed to participate. The nitrification pump 41 is also communicated with the sludge return pipe 510, the first aeration pipe 30 and the second aeration pipe 40 through a nitrification shunt pipe, so as to supplement nitrification liquid for each area.

The utility model discloses a theory of operation: domestic sewage is after the pipeline is collected, promote sewage to the integration sewage treatment device in by the elevator pump, pretreatment tank 1 flows through in proper order, anaerobism pond 2, oxygen deficiency pond 3 and good oxygen pond 4 carry out biochemical treatment after, it accomplishes mud-water separation through gravity sedimentation and pipe chute filler at sedimentation tank 5, the water of coming out from the sedimentation tank, enter into filtering ponds 6, carry out the processing of once more to sewage through the biofilm carrier of the inside, later water reentries disinfection pond 7 and disinfects, doser 82 of 8 the inside in first equipment room adds sodium hypochlorite through adding the pencil toward disinfection pond 7 the inside, disinfect water, discharge up to standard after disinfecting through ultraviolet disinfector 81 at last. Wherein, the nitrified liquid is stripped and returned to the anoxic tank 3 for denitrification by a stripping device (a nitrified liquid pump 41) of the aerobic tank 4 through a nitrified liquid return pipe, part of sludge in the sedimentation tank 5 is stripped and returned to the pretreatment tank (1) for supplementing the sludge amount by a stripping device (a sludge pump 51) through a sludge return pipe (510), the rest sludge is discharged into the sludge tank 9 through a sludge discharge pipe 511, and the sludge after concentration and drying can be transported to be externally buried or composted outside through a dung pumping vehicle discharge device. The compressed air generated by the operation of the blower 110 is transmitted to the first aeration pipe 30 and the second aeration pipe 40 of the anaerobic tank 3 and the aerobic tank 4 through the air pipes, and then the air is released through the small holes on the aeration pipes to aerate the anaerobic tank 3 and the aerobic tank 4, and the main purposes are two, one, stirring and better contact with activated sludge of organic pollutants in water. Secondly, the sewage is oxygenated, and the microorganisms in the water biochemically degrade organic pollutants, so that oxygen is needed to participate.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the new invention are also within the scope of the present invention.

Claims

1. The efficient intelligent sewage treatment device is characterized by comprising a tank body, wherein the tank body is respectively provided with a pretreatment tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, a filtering tank, a disinfection tank and a first equipment room from front to back, the front end of the pretreatment tank is provided with a water inlet, a first partition plate is arranged between the pretreatment tank and the anaerobic tank, and the lower part of the first partition plate is provided with a first water through hole; a second partition plate is arranged between the anaerobic tank and the anoxic tank, and a second water through hole is formed in the upper part of the second partition plate; a third partition plate is arranged between the anoxic tank and the aerobic tank, and a third water through hole is formed in the upper part of the third partition plate; a fourth partition plate is arranged between the aerobic tank and the sedimentation tank, a flow guide pipe is arranged on the fourth partition plate, the inlet end of the flow guide pipe is arranged at the upper part of the aerobic tank, and the outlet end of the flow guide pipe is arranged at the lower part of the sedimentation tank; a fifth clapboard is arranged between the sedimentation tank and the filtering tank, and a fourth water through hole is arranged at the upper part of the fifth clapboard; a sixth partition plate is arranged between the filtering tank and the disinfecting tank, and a fifth water through hole is formed in the lower part of the sixth partition plate; a seventh partition board is arranged between the disinfection tank and the first equipment room, a water outlet is formed in the rear end of the first equipment room, a water drainage pipe is installed on the seventh partition board, the inlet end of the water drainage pipe is arranged at the upper part of the disinfection tank, and the outlet end of the water drainage pipe is communicated with the water outlet; and a nitrifying liquid pump is arranged in the aerobic tank and is communicated with the anoxic tank through a nitrifying liquid return pipe.

2. The efficient intelligent sewage treatment device according to claim 1, wherein a sludge reflux pump is installed in the sedimentation tank, and the sludge reflux pump is communicated with the pretreatment tank through a sludge reflux pipe.

3. The efficient intelligent sewage treatment device according to claim 2, wherein a sludge tank is further arranged on the tank body, the sludge reflux pump is communicated with the sludge tank through a sludge discharge pipe, and the sludge discharge pipe is provided with a regulating valve or a control valve.

4. The efficient intelligent sewage treatment device according to claim 1, wherein a three-dimensional elastic filler is arranged in the anoxic tank.

5. The efficient intelligent sewage treatment device according to claim 1, wherein a suspended filler is arranged in the aerobic tank.

6. The efficient intelligent sewage treatment device according to claim 1, wherein a first aeration pipe is installed at the bottom of the anoxic tank, a second equipment room is arranged on the tank body, a blower is installed in the second equipment room, and the blower is communicated with the first aeration pipe through an air pipe.

7. The efficient intelligent sewage treatment device according to claim 1 or 6, wherein a second aeration pipe is installed at the bottom of the aerobic tank, a second equipment room is arranged on the tank body, a blower is installed in the second equipment room, and the blower is communicated with the second aeration pipe through an air pipe.