CN212151765U - Sewage treatment device utilizing composite reverse biological membrane filler - Google Patents

Abstract

The utility model mainly relates to a sewage treatment device, in particular to a sewage treatment device which utilizes composite reverse biomembrane filler, microorganisms and organic matters in water body generate sufficient biochemical reaction under the environment of aeration and oxygenation, and pollutants in water are effectively degraded; because the bubbles are released from inside to outside through the nano aeration hose, aerobic-anoxic environments are formed inside and on the surface of the strip-shaped fiber filler sleeve, reverse arrangement of the biological membrane is formed, the operation environment of the membrane aeration biological membrane reactor (MABR) is created, the denitrification effect is enhanced, and the good denitrification effect is achieved. In general, the device combines the removal of COD and BOD and the nitrification and denitrification better, and strengthens the natural degradation and purification functions of water body pollutants.

Description

Sewage treatment device utilizing composite reverse biological membrane filler

[ technical field ] A method for producing a semiconductor device

The utility model relates to a sewage treatment plant, concretely relates to utilize sewage treatment plant of compound reverse biomembrane filler.

[ background of the invention ]

The aeration biochemical tank is a commonly used treatment unit in the traditional sewage treatment, and an aeration biochemical system mainly degrades complex macromolecular organic matters through the biochemical action of microorganisms in activated sludge in the organic matters in the wastewater under the aerobic condition, thereby achieving the aim of purifying the wastewater. The aeration device is equipment for supplying oxygen to an aeration tank in the process of treating sewage by adopting an activated sludge method.

Types of aeration devices are: the aeration device comprises a blower aeration device, a surface aeration device, a submersible jet aeration device and a submerged aeration device, wherein the blower aeration device is also called air diffusion aeration device, compressed air is sent to an air diffusion device at the bottom of an aeration tank by an air compressor, the air escapes in the form of micro bubbles and is diffused in mixed liquid, the aeration effect is very good, the adaptability is strong, and the aeration device is widely applied to water treatment. The common blast aeration diffusion device comprises a disc type membrane aerator, a tubular aerator and an aeration hose.

The shape of the disc type membrane aerator is similar to a disc, also called as a micropore disc aerator, a gas diffusion membrane of the disc type membrane aerator is generally made of high-quality silicon rubber or ethylene propylene diene monomer, the membrane adopts a mechanical hole opening mode, aeration bubbles are small in diameter, large in gas-liquid interface area and strong in corrosion resistance, but in practical application, the defects are more, such as: the aeration dead zone exists, the energy consumption is higher, the arrangement density is not as good as that of a tubular aerator, and the manufacturing cost is higher; the tubular aerator is of a tubular structure, the length of the tubular aerator is customized according to the needs of users, and the membrane tube is perforated at a certain interval, so that uniform micro bubbles with the diameter of 1-3mm can be generated. The tubular aerator has simple structure, no blockage of air holes, no backflow of sewage, uniform annular stress and convenient installation, but has large pressure head loss and lower oxygen transfer efficiency than the disc aerator. The aeration hose is a novel aeration aerator which is successfully developed in recent years. The thin-wall and straight channel structure greatly reduces the aeration resistance loss; the variable holes and the slits are automatically opened and closed, so that the problem of blockage of other types of aerators is thoroughly solved; the hose aerates linearly to ensure that the air distribution is uniform and vertical circulation is formed, so that the stirring and mixing are more uniform; small bubbles, high oxygen utilization rate and high power efficiency.

In order to improve the degradation efficiency of the biochemical tank, besides selecting a proper aeration diffusion device, biological fillers are usually arranged in the biochemical tank and are mainly used as carriers for hanging membranes of microorganisms to improve the quantity of the microorganisms in the biochemical tank; meanwhile, bubbles are effectively cut, and the transfer rate and the utilization rate of oxygen are improved. The stereo elastic filler is not easy to form mud balls, but the film forming speed is slow; the combined filler is easy to form a film but is easy to form a mud cluster; the semi-soft filler biological membrane has poor adhesion, difficult membrane hanging and easy aging; the soft filler has unsatisfactory water flow state, easy generation of balling phenomenon and short service life; the conventional biological fillers are required to be fixed by installing firm supports at the top and the bottom of the biochemical tank, so that certain requirements are imposed on the scale and the structure of the tank body, and the biological fillers can effectively improve the degradation rate of organic pollutants in wastewater under the aeration and oxygenation conditions, but the denitrification effect on incoming water is not obvious due to lack of aerobic-anoxic environment required by denitrification.

[ summary of the invention ]

The utility model aims to provide a sewage treatment device which has the effects of high-efficiency aeration and artificial aquatic plants and simultaneously forms aerobic-anoxic environment required by denitrification in the device and on the surface.

In order to realize the above purpose, the utility model discloses an utilize sewage treatment plant of compound reverse biomembrane filler, including one end confined band fiber filler sleeve, band fiber filler sleeve is including setting up the microbial coating in the outside, it has the microorganism to adhere to on the microbial coating, still includes nanometer aeration hose, nanometer aeration hose sets up in band fiber filler sleeve along the direction that band fiber filler sleeve extends, nanometer aeration hose's one end is sealed, and the other end closely wraps up with band fiber filler sleeve blind end not, nanometer aeration hose exposes out after gaseous, on microbial coating and the microbial coating outside formation good oxygen-oxygen deficiency environment.

Furthermore, the ribbon fiber filler sleeve is formed by splicing two ribbon fiber fillers, the ribbon fiber filler sleeve further comprises a compact layer and a loose layer which are sequentially arranged from inside to outside, and the microbial coating is wrapped on the surface of the loose layer.

Further, the specific surface area of the ribbon-shaped fiber filler is 50000M²/M³The specific gravity is 0.19-0.20, and the fiber diameter is 25 μm.

Furthermore, the nano aeration hose is a flexible tubular aerator made of chemical fiber reinforced modified plastic, the length of the single hose is 600-800mm, the diameter of the single hose is 15-25mm, and the straight-line micro-hole is 5.0-6.5mm during water filling expansion.

The nano aeration hose is characterized by further comprising a gas supply branch pipe, wherein a tee is arranged on the gas supply branch pipe, and the blind end of the nano aeration hose is connected with the gas supply branch pipe through the tee.

Further, still include the air supply house steward with air supply branch pipe intercommunication, the air supply branch pipe is equidistant to be distributed on the air supply house steward, air supply house steward and air supply branch pipe bottom all are equipped with the support that is used for fixed complete equipment.

The utility model provides a sewage treatment device using composite reverse biomembrane filler, under the aeration state of the aeration hose, the micro-pores on the surface of the aeration hose release bubbles outwards, and the bubbles penetrate through the ribbon-shaped fiber sleeve tightly wrapped on the polymer fiber, thereby entering into the water body of the biochemical pool to form uniform micro-bubbles and strengthening the aeration effect; meanwhile, after the microbial coating wrapped on the fiber surface of the band-shaped fiber filler loose layer is fully contacted with sewage, a high-concentration microbial bed is formed, the number of microbes is increased to a greater extent, and the microbes and organic matters in a water body are subjected to sufficient biochemical reaction in an aeration and oxygenation environment to effectively degrade pollutants in the water; the air bubbles are released from inside to outside through the nano aeration hose, so that an aerobic-anoxic environment is formed inside and on the surface of the strip-shaped fiber filler sleeve, compared with the traditional aeration device, the reverse arrangement of the biological membrane is formed from an anaerobic environment to an aerobic environment, the operation environment of the membrane aeration biological membrane reactor (MABR) is created, the denitrification effect is enhanced, the denitrification effect is better, the oxygen concentration of the aerobic environment is high, the sewage treatment speed is accelerated, the energy consumption is lower, and on the whole, the device better combines the removal of COD and BOD and the nitrification-denitrification effect, and the natural degradation and purification functions of water pollutants are enhanced.

[ description of the drawings ]

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

FIG. 2 is a cross-sectional view of a ribbon fiber material.

Fig. 3 is a perspective view of the nano-aeration hose after being inserted into the strip packing sleeve.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

Example 1

As shown in fig. 1-3, the sewage treatment device using composite reverse biofilm fillers of the present embodiment includes a plurality of ribbon fiber filler sleeves 1 with one closed end, a microorganism coating layer 13 is disposed on the outermost side of the ribbon fiber filler sleeves 1, microorganisms are attached to the microorganism coating layer 13, and a nano aeration hose 2, wherein the nano aeration hose 2 is disposed in the ribbon fiber filler sleeves 1 along the extending direction of the ribbon fiber filler sleeves 1, one end of the nano aeration hose 2 is closed, the other end of the nano aeration hose is tightly wrapped with the non-closed end of the ribbon fiber filler sleeves 1, and after the nano aeration hose 2 is exposed to gas, an aerobic-anaerobic environment is formed in the microorganism coating layer 13 and on the outer surface thereof.

In the aeration state of the aeration hose 2, bubbles are released outwards through micropores on the surface of the aeration hose, penetrate through the ribbon-shaped fiber sleeve 1 which is tightly wrapped on the macromolecular fibers, and then enter the water body of the biochemical pool to form uniform micro bubbles so as to strengthen the aeration effect; meanwhile, after the microbial coating 12 wrapped on the fiber surface of the loose layer of the ribbon-shaped fiber filler 12 is fully contacted with sewage, a high-concentration microbial bed is formed, the number of microbes is increased to a greater extent, and the microbes and organic matters in the water body perform sufficient biochemical reaction in the aeration and oxygenation environment, so that pollutants in the water are effectively degraded; as the bubbles are released from inside to outside through the nano aeration hose 2, the inside and the surface of the strip-shaped fiber filler sleeve 1 form an aerobic-anoxic environment, compared with the traditional aeration device, the reverse arrangement of the biological membrane is formed from an anaerobic environment to an aerobic environment, the operation environment of the membrane aeration biological membrane reactor MABR is created, the denitrification effect is enhanced, the device has better denitrification effect, the oxygen concentration of the aerobic environment is high, the sewage treatment speed is accelerated, the energy consumption is lower, and on the whole, the device better combines the COD and BOD removal and the nitrification denitrification effect, the natural degradation and purification functions of water pollutants are enhanced, and the aeration hose 2 is flattened under the action of hydrostatic pressure under the non-aeration state to avoid the sludge from flowing backwards.

Example 2

As shown in fig. 2, the sewage treatment device using the composite reverse biofilm filler of the embodiment includes a ribbon fiber filler sleeve 1 formed by splicing two ribbon fiber fillers 6, wherein the rectangular ribbon fiber fillers 6 are bent to be jointed, the ribbon fiber filler sleeve 1 further includes a dense layer 11 and a loose layer 12 which are sequentially arranged from inside to outside, and the microbial coating layer is formed by coating a microbial coating on the dense layer 11 and the loose layer 1213 is wrapped on the surface of the loose layer 12, a large number of microorganisms are attached to the microorganism coating 12 wrapped on the fiber yarns on the inner side of the loose layer 12 and fully contacted with sewage to form a high-concentration microorganism bed, the number of the microorganisms is increased to a great extent, the microorganisms and organic matters in the water body are subjected to sufficient biochemical reaction in the aeration and oxygenation environment to effectively degrade pollutants in the water, and the specific surface area of the banded fiber filler 6 is 50000M²/M³Specific gravity of 0.19-0.20, fiber diameter 25 μm; the banded fiber filler with the structure has high microorganism attachment rate, is easy to form a film and is not easy to age; solves the problems of non-ideal flow state of soft filler water flow, easy generation of balling phenomenon and short service life.

Example 3

As shown in fig. 1 and 3, in the sewage treatment device using the composite reverse biofilm filler of the embodiment, the nano aeration hose 2 is a flexible tubular aerator made of chemical fiber reinforced modified plastic, the length of the single hose is 800mm, the diameter is 15-25mm, the linear medium micropores are 5.0-6.5mm when the hose is inflated with water, and the nano aeration hose 2 made of the material has the advantages of strong corrosion resistance, tearing resistance, oxidation resistance and long service life.

Example 4

As shown in fig. 1, the sewage treatment device using the composite reverse biofilm carrier of the embodiment further includes a gas supply branch pipe 3, a tee 31 is arranged on the gas supply branch pipe 3, the unsealed end of the nano aeration hose 2 is connected with the gas supply branch pipe 3 through the tee 31, the gas is supplied to the nano aeration hose 2 connected with the nano aeration hose through the gas supply branch pipe 3, and more nano aeration hoses 2 can be arranged on the gas supply branch pipe 3 to accelerate the sewage treatment.

Example 5

As shown in fig. 1, the sewage treatment device using the composite reverse biofilm filler of the embodiment further comprises a gas supply main 4 communicated with the gas supply branch pipes 3, the gas supply branch pipes 3 are equidistantly distributed on the gas supply main 4, the bottoms of the gas supply main 4 and the gas supply branch pipes 3 are respectively provided with a support 5 for fixing the whole device, gas is supplied to each branch pipe through the gas supply main 4, laying of gas supply pipelines in sewage treatment is reduced, and cost is saved.

Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.

Claims (6)

1. The utility model provides an utilize sewage treatment plant of compound reverse biomembrane filler which characterized in that: the fiber filler comprises a plurality of ribbon fiber filler sleeves (1) with one closed ends, wherein a microorganism coating (13) is arranged on the outermost side of each ribbon fiber filler sleeve (1), microorganisms are attached to the microorganism coating (13), the fiber filler sleeve further comprises a nano aeration hose (2), the nano aeration hose (2) is arranged in the ribbon fiber filler sleeves (1) along the direction in which the ribbon fiber filler sleeves (1) extend, one end of the nano aeration hose (2) is closed, the other end of the nano aeration hose is tightly wrapped with the non-closed end of the ribbon fiber filler sleeves (1), and after the nano aeration hose (2) exposes gas, an aerobic-anaerobic environment is formed in the microorganism coating (13) and on the outer surface of the microorganism coating (13).

2. The sewage treatment plant using the composite reverse biofilm carrier as claimed in claim 1, wherein: ribbon fiber filler sleeve (1) is formed by two ribbon fiber filler (6) concatenations, ribbon fiber filler (6) include compact layer (11) and loose layer (12) that set gradually from inside to outside, microorganism coating (13) parcel is on loose layer (12) surface.

3. The sewage treatment plant using the composite reverse biofilm carrier as claimed in claim 1, wherein: the specific surface area of the ribbon-shaped fiber filler (6) is 50000M²/M³The specific gravity is 0.19-0.20, and the fiber diameter is 25 μm.

4. The sewage treatment plant using the composite reverse biofilm carrier as claimed in claim 1, wherein: the length of the single nano aeration hose (2) is 600-800mm, the diameter is 15-25mm, and the straight micro-pores are 5.0-6.5mm during water-filling expansion.

5. The sewage treatment plant using the composite reverse biofilm carrier as recited in claim 4, wherein: the nano aeration hose is characterized by further comprising a gas supply branch pipe (3), wherein a tee joint (31) is arranged on the gas supply branch pipe (3), and the unsealed end of the nano aeration hose (2) is connected with the gas supply branch pipe (3) through the tee joint (31).

6. The sewage treatment plant using the composite reverse biofilm carrier as recited in claim 5, wherein: still include air supply house steward (4) with air supply branch pipe (3) intercommunication, air supply branch pipe (3) equidistant distribution is on air supply house steward (4), air supply house steward (4) and air supply branch pipe (3) bottom all are equipped with support (5) that are used for fixed whole equipment.

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