CN212198921U

CN212198921U - Sewage plant standard-lifting HCR high-efficiency bioreactor

Info

Publication number: CN212198921U
Application number: CN202020252032.1U
Authority: CN
Inventors: 杨云军; 吉立业; 张晓飞
Original assignee: Nanjing Tongzhi Environmental Protection Technology Co ltd
Current assignee: Nanjing Tongzhi Environmental Protection Technology Co ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-12-22
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a sewage factory carries high-efficient bioreactor of standard HCR belongs to the sewage treatment field. Comprises a base component and a circulating component. The basic assembly comprises an anaerobic zone, an aerobic zone, a sludge filtering zone and a settling zone which are formed by arranging baffles which are distributed in a reactor in a vertically crossed manner and are separated; the circulation assembly comprises a circulation pipeline which acts from the downstream of the aerobic zone to the upstream of the aerobic zone through a high-pressure water pump; and the water outlets of the circulating pipelines are provided with cavitators. The utility model discloses a set up the cavitator in water circulating system, reduce the mud technique with aerobic biological treatment process and hydrodynamic cavitation for the microorganism can more fully absorb the organic matter, reduces the production volume of excess sludge, thereby has realized minimizing, the resourceization of mud in sewage biochemical treatment process, improves sewage treatment capacity.

Description

Sewage plant standard-lifting HCR high-efficiency bioreactor

Technical Field

The utility model belongs to the sewage treatment field, especially, sewage factory carries high-efficient bioreactor of standard HCR.

Background

At present, the sewage treatment and disposal in China are still in the stage of separating sludge from sewage, and for example, filter pressing dehydration, low-temperature drying, pyrolysis volume reduction, anaerobic digestion, incineration, landfill and the like are all tail end treatment technologies. The method lacks a clean production process for directly realizing sludge reduction and resource utilization in the urban sewage treatment process. Therefore, the technology capable of realizing source reduction and resource recycling of sludge in the sewage treatment process has important significance for improving the technical level of sewage treatment in China.

Among them, aerobic biological treatment is a treatment method in which aerobic microorganisms (including facultative microorganisms) are biologically metabolized in the presence of oxygen to degrade organic substances, thereby stabilizing and detoxifying the organic substances. The microorganism takes organic pollutants in water as a substrate to carry out aerobic metabolism, releases energy step by step through a series of biochemical reactions, and finally stabilizes the inorganic matters with low energy level to meet the requirement of harmlessness so as to return to the natural environment or further treat the inorganic matters. Can reduce the secondary pollution of the sludge and reduce the sludge treatment cost. However, aerobic biological treatment processes have a limited availability of sludge and still have a large amount of organic matter that is not treated by microorganisms and is treated further as sludge.

The hydrodynamic cavitation sludge reduction (HCR) technology is that high-pressure water is injected into a reactor through a nozzle by a high-pressure water pump, and a large amount of air is sucked simultaneously due to the action of negative pressure. Under the combined action of water flow and air flow, a high-speed turbulent shear zone is formed below the reactor, and meanwhile, the sucked air is dispersed into fine bubbles. The bubbles, the organic sludge and the microbial community are sheared and refined to form compact and fine flocculating constituents, and the microorganisms can fully absorb the organic matters to reduce the production of the residual sludge, thereby realizing the reduction and the resource of the sludge in the biochemical treatment process of the sewage and improving the sewage treatment capacity.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: provides a sewage plant standard-upgrading HCR high-efficiency bioreactor to solve the problems involved in the background technology.

The technical scheme is as follows: a sewage plant benchmarking HCR high efficiency bioreactor comprising: the base assembly and the circulating assembly.

The basic assembly comprises an anaerobic zone, an aerobic zone, a sludge filtering zone and a settling zone which are formed by arranging baffle plates which are distributed in the reactor in a vertically crossed manner, a sewage inlet which is arranged above the anaerobic zone and acts through a peristaltic pump, and a purified water outlet which is arranged on the side surface of the settling zone.

And the circulating assembly comprises a first circulating pipeline acted to the upstream of the aerobic zone from the downstream of the aerobic zone through a high-pressure water pump, a second circulating pipeline acted to the upper part of the anaerobic zone from the bottom of the settling zone through the high-pressure water pump, and an air assisting pump arranged at the upstream of the aerobic zone.

And cavitators are arranged at the water outlets of the first circulating pipeline and the second circulating pipeline.

As a preferred scheme, the peristaltic pump, the high-pressure water pump and the air boosting pump are respectively sleeved with a flowmeter.

As a preferred aspect, the cavitator is a venturi tube comprising: a reducing section with gradually reduced pipe diameter, an expanding section with gradually increased pipe diameter, and a throat part connecting the reducing section and the expanding section.

As a preferable scheme, the diameter of the throat part is 0.03-0.2 m, and the diameter length of the throat part is 0.1-0.5 m; the diameters of the water inlet of the reducing section and the water outlet of the expanding section are 2-5 times of the diameter of the throat part; the taper of the convergent section and the divergent section is 15-45 degrees.

As a preferred aspect, the cavitator includes: the pipe diameter gradually reduces the convergent section that reduces, the expansion section of pipe diameter grow gradually, connect the throat of convergent section and expansion section to and set up the reposition of redundant personnel piece in the throat.

As a preferred scheme, the flow dividing piece is a porous baffle plate fixedly installed on the throat part, a plurality of channels are uniformly distributed on the porous baffle plate, internal threads are arranged in the channels, and the rotation directions of the internal threads in two adjacent channels are opposite.

As a preferable scheme, the splitter is a rotor movably mounted on the throat, and the rotor is a double-spiral external thread piece.

As a preferable scheme, the diameter of the throat part is 0.05-0.2 m, and the diameter length of the throat part is 0.2-0.5 m; the diameters of the water inlet of the reducing section and the water outlet of the expanding section are 2-5 times of the diameter of the throat part; the taper of the convergent section and the divergent section is 15-45 degrees.

Has the advantages that: the utility model relates to a sewage plant carries high-efficient bioreactor of mark HCR, through set up the cavitator in water circulating system, with aerobic biological treatment process and hydrodynamic cavitation subtract mud technique, make the microorganism can more fully absorb the organic matter, reduce the output of surplus mud, thus realized the minimizing of mud, resourceization in the sewage biochemical treatment process, improve the sewage treatment capacity; in addition, the structure of the cavitation gas is improved, the cavitation efficiency of the cavitator is improved, the organic matters at the cell level are broken, and the reduction, recycling and sewage treatment capacities of the sludge are further improved.

Drawings

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

Fig. 2 is a schematic structural view of the cavitation device of the present invention.

Fig. 3 is a schematic cross-sectional view of a middle porous baffle of the present invention.

Fig. 4 is a schematic side view of a rotor according to the present invention.

The reference signs are: the anaerobic zone 1, the aerobic zone 2, the sludge filtering zone 3, the settling zone 4, the sewage inlet 5, the purified water outlet 6, the first circulating pipeline 7, the second circulating pipeline 8, the cavitator 9, the reducing section 91, the expanding section 92, the throat 93, the flow dividing piece 94, the porous baffle 94a and the rotor 94 b.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

Example 1

As shown in the attached figure 1, the sewage plant benchmarking HCR high-efficiency bioreactor comprises: the base assembly and the circulating assembly.

Wherein the base assembly comprises: an anaerobic zone 1, an aerobic zone 2, a sludge filtering zone 3, a settling zone 4, a sewage inlet 5 and a purified water outlet 6. The reactor is divided into an anaerobic zone 1, an aerobic zone 2, a sludge filtering zone 3 and a settling zone 4 by arranging a plurality of groups of baffles which are distributed in an up-and-down crossed manner in the reactor, then a sewage inlet 5 is arranged above the anaerobic zone 1, sewage is introduced into the anaerobic zone 1 under the action of a peristaltic pump, and a filtering tank and a purified water outlet 6 are arranged on the side surface of the settling zone 4. Wherein a filter tank is arranged at the downstream of the aerobic zone 2, and then the filter tank is connected with the sludge filtering zone 3 through a pipeline, sewage enters from a sewage inlet 5, passes through the anaerobic zone 1, the aerobic zone 2, the sludge filtering zone 3 and the settling zone 4 in turn through baffling, is subjected to biological treatment, and finally is discharged from a water inlet.

The circulation assembly includes: a first circulating pipeline 7, a second circulating pipeline 8, a peristaltic pump, a high-pressure water pump, an auxiliary air pump and a cavitator 9. A first circulating pipeline 7 transports part of the sewage from the downstream of the aerobic zone 2 to the upstream of the aerobic zone 2 through the action of a high-pressure water pump, a second circulating pipeline 8 transports microbial colonies from the bottom of the sedimentation zone 4 to the upper part of the anaerobic zone 1 through the action of the high-pressure water pump, and an air assisting pump is arranged at the upstream of the aerobic zone 2. And cavitators 9 are arranged at the water outlets of the first circulating pipeline 7 and the second circulating pipeline 8. In addition, in order to realize the operation digitization, flowmeters are sleeved on the peristaltic pump, the high-pressure water pump and the air assisting pump.

In a further embodiment, the cavitator 9 is a venturi tube comprising: a tapered section 91 with gradually decreasing tube diameter, a flared section 92 with gradually increasing tube diameter, and a throat 93 connecting the tapered section 91 and the flared section 92. Through engineering practice and actual requirements, the specific parameters of the venturi selected by the company are as follows: the diameter of the throat part 93 is 0.03-0.2 m, and the diameter length of the throat part 93 is 0.1-0.5 m; the diameters of the water inlet of the reducing section 91 and the water outlet of the expanding section 92 are 2-5 times of the diameter of the throat part 93; the taper of the convergent section 91 and the divergent section 92 is 15-45 degrees.

The technical scheme of the sewage plant standard-lifting HCR high-efficiency bioreactor in the embodiment is convenient to understand, and the working principle of the bioreactor is briefly explained as follows: in the actual sewage treatment project, after sewage is aerated in an aerobic tank through an air assisting pump, the sewage keeps high-concentration gas mixing, then sludge and microbial colonies in the upper part of a part of an aerobic zone 2 are pumped into a cavitator 9 through a high-pressure water pump through a first circulating pipeline 7, then a sludge solution crushed by the cavitator 9 returns to the bottom of a backflow aerobic zone 2, and the sucked gas is dispersed into fine bubbles after multiple times of circulating crushing. The bubbles, the organic sludge and the microbial community are sheared and refined to form a compact and fine flocculating constituent, the microbes fully absorb and decompose the sludge in the sewage to reduce the production amount of the residual sludge, and then the sludge filtering area 3 filters the residual sludge further and discharges the residual sludge from a purified water outlet 6 on the side surface of the sedimentation tank. The second is a small amount of sludge at the bottom and enters the anaerobic zone 1 through a second circulating pipeline 8.

Example 2

On the basis of example 1, further improvements were made to the conventional venturi in order to further reduce the sludge yield. As shown in fig. 2 and fig. 3, the cavitator 9 includes: a tapered section 91 with a gradually decreasing pipe diameter, a flared section 92 with a gradually increasing pipe diameter, a throat 93 connecting the tapered section 91 and the flared section 92, and a flow divider 94 disposed at the throat 93. The flow dividing piece 94 is a porous baffle 94a fixedly installed on the throat 93, a plurality of channels are uniformly distributed on the porous baffle 94a, internal threads are arranged in the channels, and the rotation directions of the internal threads in two adjacent channels are opposite.

Through engineering practice and practical requirements, the specific parameters of the venturi selected by the company are as follows: the diameter of the throat part 93 is 0.05-0.2 m, and the diameter length of the throat part 93 is 0.2-0.5 m; the diameters of the water inlet of the reducing section 91 and the water outlet of the expanding section 92 are 2-5 times of the diameter of the throat part 93; the taper of the convergent section 91 and the divergent section 92 is 15-45 degrees.

The technical scheme of the sewage plant standard-lifting HCR high-efficiency bioreactor in the embodiment is convenient to understand, and the working principle of the bioreactor is briefly explained as follows: when sewage passes through the cavitator 9, the generated residual sludge is sent into the cavitator 9 through a high-pressure water pump, when the muddy water mixture passes through the porous baffle 94a, due to the fact that threads are arranged in the channel, the high-speed rotation of the muddy water mixture in the channel is increased, the turbulent flow of downstream cement mixing is increased, when the muddy water mixture passes through the throat 93, pressure is suddenly released, the sludge instantaneously destroys extracellular polymers on the cell surface through multiple coupling synergistic effects such as oxygen oxidation, air bubble collapse and hydraulic fracture, bubbles, organic matter sludge and microbial colonies are further sheared and refined, and dense and fine floccules are formed. The other working principle is the same as that of embodiment 1.

Example 3

On the basis of example 1, further improvements were made to the conventional venturi in order to further reduce the sludge yield. As shown in fig. 2 and 4, the cavitator 9 includes: a tapered section 91 with a gradually decreasing pipe diameter, a flared section 92 with a gradually increasing pipe diameter, a throat 93 connecting the tapered section 91 and the flared section 92, and a flow divider 94 disposed at the throat 93. The splitter 94 is a rotor 94b movably mounted on the throat 93, and the rotor 94b is a double-spiral external thread piece.

In order to facilitate understanding of the technical scheme of the sewage plant-standardized HCR high-efficiency bioreactor in the embodiment, the working principle of the bioreactor is briefly explained: when sewage passes through the cavitator 9, the generated residual sludge is sent into the cavitator 9 through a high-pressure water pump, when the muddy water mixture passes through the rotor 94b, water flow drives the rotor 94b to rotate at a high speed, and similarly, the muddy water mixture also rotates at a high speed in the channel, so that turbulent flow of downstream cement mixing is increased, when the muddy water mixture passes through the throat 93, pressure is suddenly released, extracellular polymers on the cell surface are destroyed by multiple coupling synergistic effects such as oxygen oxidation, air bubble collapse, hydraulic fracture and the like, bubbles, organic matter sludge and microbial colonies are further sheared and refined, and dense and fine floccules are formed. The other working principle is the same as that of embodiment 1.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. The utility model provides a sewage plant carries high-efficient bioreactor of standard HCR which characterized in that includes:

the basic component comprises an anaerobic zone, an aerobic zone, a sludge filtering zone and a settling zone which are formed by separating an upper cross distribution baffle and a lower cross distribution baffle in the reactor, a sewage inlet which is arranged above the anaerobic zone and acts through a peristaltic pump, and a purified water outlet which is arranged on the side surface of the settling zone;

the circulation assembly comprises a first circulation pipeline acted to the upstream of the aerobic zone from the downstream of the aerobic zone through a high-pressure water pump, a second circulation pipeline acted to the upper part of the anaerobic zone from the bottom of the sedimentation zone through the high-pressure water pump, and an air assisting pump arranged at the upstream of the aerobic zone;

2. The sewage plant standard-lifting HCR high-efficiency bioreactor as claimed in claim 1, wherein the peristaltic pump, the high-pressure water pump and the booster pump are all sleeved with flow meters.

3. The sewage plant benchmarking HCR high-efficiency bioreactor of claim 1, wherein the cavitator is a venturi tube comprising: a reducing section with gradually reduced pipe diameter, an expanding section with gradually increased pipe diameter, and a throat part connecting the reducing section and the expanding section.

4. The sewage plant benchmarking HCR high-efficiency bioreactor as claimed in claim 3, wherein the diameter of the throat part is 0.03-0.2 m, and the diameter length of the throat part is 0.1-0.5 m; the diameters of the water inlet of the reducing section and the water outlet of the expanding section are 2-5 times of the diameter of the throat part; the taper of the convergent section and the divergent section is 15-45 degrees.

5. The sewage plant benchmarking HCR high-efficiency bioreactor of claim 1, wherein the cavitator comprises: the pipe diameter gradually reduces the convergent section that reduces, the expansion section of pipe diameter grow gradually, connect the throat of convergent section and expansion section to and set up the reposition of redundant personnel piece in the throat.

6. The sewage plant benchmarking HCR high-efficiency bioreactor according to claim 5, wherein the flow dividing member is a porous baffle fixedly installed on the throat part, a plurality of channels are uniformly distributed on the porous baffle, and internal threads are arranged in the channels, wherein the internal threads in two adjacent channels rotate in opposite directions.

7. The sewage plant benchmarking HCR high-efficiency bioreactor according to claim 5, wherein the flow dividing member is a rotor movably mounted on the throat, and the rotor is a double-spiral external thread piece.

8. The sewage plant benchmarking HCR high-efficiency bioreactor according to any one of claims 5 to 7, wherein the diameter of the throat part is 0.05 to 0.2m, and the diameter and the length of the throat part are 0.2 to 0.5 m; the diameters of the water inlet of the reducing section and the water outlet of the expanding section are 2-5 times of the diameter of the throat part; the taper of the convergent section and the divergent section is 15-45 degrees.