CN209619118U - A kind of domestic sewage purification device - Google Patents

A kind of domestic sewage purification device Download PDF

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Publication number
CN209619118U
CN209619118U CN201822243917.0U CN201822243917U CN209619118U CN 209619118 U CN209619118 U CN 209619118U CN 201822243917 U CN201822243917 U CN 201822243917U CN 209619118 U CN209619118 U CN 209619118U
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pipe
carbon
domestic sewage
purification device
sewage purification
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CN201822243917.0U
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姚鹏
李冰
余葱葱
夏礼军
祝伟宏
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China Coal Ziguang Hubei Environmental Protection Technology Co Ltd
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China Coal Ziguang Hubei Environmental Protection Technology Co Ltd
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Abstract

The utility model proposes a kind of domestic sewage purification devices, including hydrolysis acidification pool, membrane aerated bioreactor and carbon filter, two sides are separately connected the first water inlet pipe and the first overflow pipe at the top of hydrolysis acidification pool, first overflow pipe is connected with the bottom water inlet of membrane aerated bioreactor, the top delivery port of membrane aerated bioreactor is connected by the second overflow pipe with the side top inlet of carbon filtering pool, and the carbon filtering pool other side is equipped with outlet pipe;It is connected with nitrification liquid return pipe at the top of hydrolysis acidification pool, bottom is connected with mud return line;Film aeration and biological reaction mechanism is equipped in membrane aerated bioreactor, membrane aerated bioreactor bottom plate is equipped with heater and magnetic stirring apparatus;Filter material layer and supporting layer are equipped in carbon filtering pool, bottom of pond is equipped with backwash mechanism.The utility model has the double effects of denitrogenation dephosphorizing, and aeration is high-efficient, low energy consumption, anti-shock loading is strong, easy to operate, effluent quality is good.

Description

A kind of domestic sewage purification device
Technical field
The utility model belong to sanitary sewage disposal technical field more particularly to a kind of domestic sewage purification device.
Background technique
Water is Source of life, is basis existing for all ecological environments on the earth, is that human social development is irreplaceable Natural resources.With the development of economic society, people's living standard is gradually increased, water security problem increasingly by society and The attention of country.In recent years, quantity of wastewater effluent increases, and pollutant kind and concentration increase, and water environment pollution problem becomes increasingly conspicuous, The generally existing phenomenon of water pollution and the trend that Drinking Water water standard is continuously improved, the people are higher and higher to water quality requirement Between form a contradiction.This requires water treatment work persons constantly to explore new water treatment technology, general at water source to guarantee Good water environment is provided for numerous people in the case where be contaminated.
Sewage disposal technology is evolving, improves and improves with the demand of society.Before 20th century, people are to drinking water Safety pay attention to not enough, water is without processing or only drinks at once through simple process, cause bacteria type water Jie infectious disease (dysentery, Cholera etc.) it happens occasionally.In early 20th century, first generation drinking water purification process, i.e. coagulation, precipitating, filtering, chlorination are had developed The water-purifying process of disinfection, that is, conventional drinking water treatment technique described in present people.In the 1970s, with detection skill The development of art and the aggravation of water environment pollution, detect the micro quantity organic pollutant of huge number in source water, with turbidity removal and Inactivation microorganism is that the first generation water-purifying process of major function cannot be removed effectively these trace toxic organic matters, in this background Under, water treatment work person has developed second generation water-purifying process, i.e., it is deep to add ozone/biological activated carbon after coagulating sedimentation filtering Treatment process is spent, the larger molecular organics in water are converted to by the small-molecule substance being readily biodegradable by ozone oxidation, then The microbial degradation being attached on active carbon in biological activated carbon behind by charcoal absorption enrichment.On the whole, Sewage disposal technology experienced from initial simple depositing technology and the trickling filter of most original to activated sludge process and biofilm Differentiation, these techniques are continuously improved and are innovated again in modern treatment process.
For the deficiency of traditional activated sludge process and biofilm, membrane bioreactor is had become a hot topic of research.Film exposes Gas bioreactor (MABR) is one kind of membrane bioreactor, is a kind of new shape that film aeration process is applied to sewage treatment Formula, i.e., more precisely carrying out non-porous aeration to bioreactor using the dense film of gas permeability or hydrophobic microporous membrane is pair The biomembrane oxygen supply being attached on membrane material, membrane material play the role of oxygen supply and biofilm carrier simultaneously.(MABR) film is aerated It is entered in biomembrane under the effects of bioreactor oxygen and nutrients are respectively from the two sides of biomembrane in concentration difference, absorption, and it is right In conventional biological film system, oxygen and nutrients are entered in film from the same side of film, this is MABR biofilm system mass transfer Special character.Membrane aerated bioreactor (MABR) aeration efficiency is up to 100%, and microorganism is highly enriched in film surface, will not As water body is lost, while there is anaerobic and aerobic effect, is able to achieve nitrification and denitrification in single-reactor, it being capable of more efficient COD and nitrogen are removed, but cannot effectively achieve the effect that dephosphorization.
Summary of the invention
It is net the technical problem to be solved by the utility model is in view of the above problems, provide a kind of sanitary sewage Makeup is set, and has not only been had the effect of MABR process characteristic but also can have been reached effective dephosphorization and strengthened denitrification.
The utility model solves technical solution used by above-mentioned technical problem: a kind of domestic sewage purification device, It is characterized in that, including hydrolysis acidification pool, membrane aerated bioreactor and carbon filter, two sides connect respectively at the top of the hydrolysis acidification pool Connect the first water inlet pipe and the first overflow pipe, the bottom water inlet phase of first overflow pipe and the membrane aerated bioreactor Even, the top delivery port of membrane aerated bioreactor is connected by the second overflow pipe with the side top inlet of the carbon filter, The carbon filter other side is equipped with outlet pipe;It is connected with nitrification liquid return pipe at the top of hydrolysis acidification pool, bottom is connected with mud return line, The nitrification liquid return pipe is equipped with elevator pump, and input end protrudes under the liquid level of membrane aerated bioreactor, the sludge reflux Sludge pump and sludge reflux valve are successively arranged on pipe, input end protrudes at the top of carbon filter, connects sludge pipe on mud return line, arranges Mud pipe is equipped with mud valve;Film aeration and biological reaction mechanism, membrane aerated bioreactor bottom are equipped in membrane aerated bioreactor Plate is equipped with heater and magnetic stirring apparatus;Filter material layer and supporting layer are equipped in carbon filter, bottom of pond is equipped with backwash mechanism.
According to the above scheme, the supporting layer is the cobble for being layed in carbon filtration bottom of pond portion, and the filter material layer is upper layer and lower layer, on Layer is quartz sand, and lower layer is biological activated carbon slag.
According to the above scheme, the cobble particle size range is 25~40mm, and quartz sand particle size range is 5~10mm, and biology is living Property breeze particle size range be 10~25mm.
According to the above scheme, the film aeration and biological reaction mechanism includes number of permutations layer coal base microporous carbon pipe, every layer of horizontal row Columns root coal base microporous carbon pipe, inlet end are socketed air inlet channel closure, exhaust end socket exhaust channel closure, and the air inlet channel closure connects Tracheae is tapped into, the exhaust channel closure connects exhaust pipe, is successively arranged air pump, air valve, gas flow in the air inlet pipe Meter and pressure gauge, the exhaust pipe are equipped with exhaust valve.
According to the above scheme, the backwash mechanism is by the aeration tube set on bottom of pond and the blower fan group being connected with the aeration tube At.
According to the above scheme, the coal base microporous carbon pipe outside diameter is 8.5~9.3mm, and wall thickness is 1.9~2.3mm, and micropore is average 3 μm of aperture, porosity 48%.
According to the above scheme, the aeration tube upper half arc surface is evenly distributed with solarization air cap, is aerated pipe outside diameter 20mm, wall thickness 2.1mm, exposes Stomata average pore size 8mm.
The beneficial effects of the utility model are: 1, a kind of domestic sewage purification device and method are provided, combine hydrolysis acid Change the characteristics of pond, MABR and carbon filter three kinds of technique, enhances the effect of MABR denitrogenation, compensate for it to phosphorus without removal effect It is insufficient;2, without adding any medicament, adverse effect is not generated to water quality, belongs to the biology and physics water-purifying process of green;3, It is aerated high-efficient (100%), unit volume aeration membrane area is big, and oxygen delivery capacity is high, and single equipment is high-efficient;4, microorganism height It is enriched in film surface, membranous system water resistant matter impact load is strong, will not be lost with water body;5, bubble-free aeration avoids volatile components from waving Hair causes air pollution, and sludge yield is few;6, engineering equipment is compact, occupies little space, and small investment, power energy consumption is low, operation letter Single, process control can automate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Wherein: the first water inlet pipe of 1-, 2- hydrolysis acidification pool, the first overflow pipe of 3-, 4- membrane aerated bioreactor, 5- air inlet Channel closure, 6- exhaust channel closure, 7- coal base microporous carbon pipe, 8- heater, 9- magnetic stirring apparatus, 10- air pump, 11- air valve, 12- gas flowmeter, 13- air inlet pipe, 14- pressure gauge, 15- elevator pump, 16- nitrification liquid return pipe, 17- exhaust pipe, 18- row Air valve, the second overflow pipe of 19-, 20- quartz sand, 21- bioactivity breeze, 22- cobble, 23- carbon filter, 24- outlet pipe, 25- Blower, 26- aeration tube, 27- mud valve, 28- sludge pump, 29- sludge reflux valve, 30- mud return line, 31- sludge pipe.
Specific embodiment
To more fully understand the utility model, the utility model work is further retouched with reference to the accompanying drawings and examples It states.
As shown in Figure 1, a kind of domestic sewage purification device, which is characterized in that including hydrolysis acidification pool 2, film aeration and biological Reactor 4 and carbon filter 23, hydrolysis acidification pool top two sides are separately connected the first water inlet pipe 1 and the first overflow pipe 3, the first overflow Pipe is connected with the bottom water inlet of membrane aerated bioreactor, and the top delivery port of membrane aerated bioreactor passes through the second overflow Pipe 19 is connected with the side top inlet of carbon filter, and the carbon filter other side is equipped with outlet pipe 24;It is connected at the top of hydrolysis acidification pool Nitrification liquid return pipe 16, bottom are connected with mud return line 30, and nitrification liquid return pipe is equipped with elevator pump 15, and input end protrudes into film Sludge pump 28 and sludge reflux valve 29 are successively arranged under the liquid level of aeration and biological reactor, on mud return line, input end protrudes into At the top of carbon filter, sludge pipe 31 is connected on mud return line, sludge pipe is equipped with mud valve 27;It is set in membrane aerated bioreactor There is film aeration and biological reaction mechanism, membrane aerated bioreactor bottom plate is equipped with heater 8 and magnetic stirring apparatus 9;In carbon filter Equipped with filter material layer and supporting layer, bottom of pond is equipped with backwash mechanism.
Supporting layer is the cobble 22 for being layed in carbon filter bottom, and filter material layer is upper layer and lower layer, and upper layer is quartz sand 20, lower layer For biological activated carbon slag 21.Cobble particle size range is 25~40mm, and quartz sand particle size range is 5~10mm, bioactivity breeze Particle size range is 10~25mm.
Film aeration and biological reaction mechanism includes number of permutations layer coal base microporous carbon pipe 7, every layer of horizontally arranged several coal base micropores Carbon pipe, inlet end are socketed air inlet channel closure 5, exhaust end socket exhaust channel closure 6, and air inlet channel closure connects air inlet pipe 13, exhaust Channel closure connects exhaust pipe 17, is successively arranged air pump 10, air valve 11, gas flowmeter 12 and pressure gauge 14 in air inlet pipe, Exhaust pipe is equipped with exhaust valve 18.
Backwash mechanism is made of the blower 25 for being set to the aeration tube 26 of bottom of pond and being connected with aeration tube.
Coal base microporous carbon pipe outside diameter be 8.5~9.3mm, wall thickness be 1.9~2.3mm, 3 μm of micropore average pore size, porosity 48%.
Aeration tube upper half arc surface is evenly distributed with solarization air cap, is aerated pipe outside diameter 20mm, wall thickness 2.1mm, solarization air cap average pore size 8mm。
Included the following steps: using the method for this domestic sewage purification device
S1) sewage progresses into hydrolysis acidification pool through water inlet pipe, and sewage passes through the first overflow pipe from film after hydrolysis acidification The bottom of aeration and biological reactor enters membrane aerated bioreactor;
S2) membrane aerated bioreactor is run, and adjusts air valve and exhaust valve, controls gas flow, tight by pressure gauge Gas pressure in lattice control reactor realizes the still of into bioreactor biomembrane to keep partial pressure lower than bubble point Aeration;Meanwhile two magnetic stirrers, revolving speed appropriate, which is arranged, enables sewage to reach the effect come into full contact with biomembrane Fruit;Reactor bottom is heated with heater, is kept for 30 DEG C of temperature, to guarantee the stronger activity of microorganism;
S3) reaction solution is gradually lower after the second overflow pipe enters carbon filter top in membrane aerated bioreactor seeps, point Not Jing Guo quartz sand, bioactivity breeze double medium filtration, sewage disposal system is finally discharged by outlet pipe;
S4) so that the partial sludge in membrane aerated bioreactor is back to hydrolysis acidification pool by controlling elevator pump, formed Internal circulation system;
S5) when the biofilm thickness adhered on coal base microporous carbon pipe is thicker, microbial activity weakens, and wastewater treatment efficiency is bright When aobvious reduction, magnetic stirring apparatus revolving speed can be suitably tuned up, aggravates the impact strength of sewage and biomembrane to make the biology of aging Film falls off to achieve the effect that the biological Membrane cleaning to attachment;
S6) when the attachment impurity on the double-layer filter material in carbon filter is more, it can be exposed at regular intervals Gas backwash, to achieve the effect that clean filtrate.
The utility model uses the processing that mode associated with " filter of hydrolysis acidification pool+MABR+ carbon " carries out system to sewage, On the one hand hydrolysis acidification pool enhances the effect of MABR denitrogenation, on the other hand can play to a certain extent with after MABR combination The effect of certain biological phosphate-eliminating, afterwards plus carbon filter can not only reach adsorption and dephosphorization effect to a certain extent, heavy there are also two The effect in pond.On the whole, the utility model had not only enhanced the effect of MABR denitrogenation, but also compensated for it to phosphorus without removal effect It is insufficient.
The main hydrolysis acidification pool of the biochemistry pool of the technique and MABR reactor are constituted, then sewage is introduced into hydrolysis acidification pool MABR reactor is entered back into, is then re-introduced into hydrolysis acidification pool by interior circulation.In hydrolysis acidification pool, on the one hand, heterotrophism The suspended matters such as starch, fiber, carbohydrate in sewage and dissolved organic matter are hydrolyzed to organic acid by type microorganism, are made big Molecular organic is hydrolyzed to the organic matter of small molecule, and insoluble organic matter is converted into dissolved organic matter, improves giving birth to for sewage The property changed.Meanwhile at this stage, the pollutants such as protein, fat can also be carried out the ammonification (N in organic chain by heterotrophic microorganism Or the free ammonia out of amino in amino acid);On the other hand, under anaerobic, polyP bacteria, will be organic by the cooperation between strain Object is converted into volatile acid, will volatilize acid absorption by the energy of hydrolysis release and is stored in body in the form of poly- β hydroxybutyric acid PHB It is interior, required carbon source and energy are provided excessively to take the photograph the breeding of phosphorus and itself under subsequent aerobic condition for it.In MABR In reactor, organic matter is degraded by aerobic layer and the microbial biochemical of anaerobic layer and continues to decline, and nitrobacteria will in aerobic layer NH3- N is oxidized to NO3 -N is reduced by the denitrification of the denitrifying bacteria of anaerobic layer2, another part nitrification liquid passes through Reflux control system is back to hydrolysis acidification pool, also by NO under the denitrification of the heterotrophic microorganism in hydrolysis acidification pool3 - It is reduced into N2.Meanwhile in MABR reactor, with the excess ingestion of polyP bacteria, concentration also reduces rapidly phosphorus.Sewage passes through In " hydrolysis acidification pool+MABR " after a series of biochemical treatments, C, N in sewage have substantially achieved good removal effect, and P Only eliminate a part.
The water outlet of MABR reactor enters carbon filter, and the double-layer filter material structure in filter tank is constituted using quartz sand and biological activated carbon The biomembrane and sludge split away off on removal filler, phosphorus have also obtained further Adsorption in the process, a part Sludge enters hydrolysis acidification pool by sludge recirculation system, and excess sludge is discharged by sludge pipe so that phosphorus is detached from sewage Reason system.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (7)

1. a kind of domestic sewage purification device, which is characterized in that filtered including hydrolysis acidification pool, membrane aerated bioreactor and carbon Pond, two sides are separately connected the first water inlet pipe and the first overflow pipe at the top of the hydrolysis acidification pool, first overflow pipe with it is described The bottom water inlet of membrane aerated bioreactor is connected, the top delivery port of membrane aerated bioreactor by the second overflow pipe with The side top inlet of the carbon filter is connected, and the carbon filter other side is equipped with outlet pipe;Nitrification is connected at the top of hydrolysis acidification pool Liquid return pipe, bottom are connected with mud return line, and the nitrification liquid return pipe is equipped with elevator pump, and input end protrudes into film aeration life Under the liquid level of object reactor, sludge pump and sludge reflux valve are successively arranged on the mud return line, input end protrudes into carbon filter Top, sludge pipe is connected on mud return line, and sludge pipe is equipped with mud valve;Film aeration life is equipped in membrane aerated bioreactor Object reaction mechanism, membrane aerated bioreactor bottom plate are equipped with heater and magnetic stirring apparatus;Be equipped in carbon filter filter material layer and Supporting layer, bottom of pond are equipped with backwash mechanism.
2. a kind of domestic sewage purification device according to claim 1, which is characterized in that the supporting layer is to be layed in carbon The cobble of filter tank bottom, the filter material layer are upper layer and lower layer, and upper layer is quartz sand, and lower layer is biological activated carbon slag.
3. a kind of domestic sewage purification device according to claim 2, which is characterized in that the cobble particle size range is 25 ~40mm, quartz sand particle size range are 5~10mm, and biological activated carbon slag particle size range is 10~25mm.
4. a kind of domestic sewage purification device according to claim 1, which is characterized in that the film aeration and biological reacts machine Structure includes number of permutations layer coal base microporous carbon pipe, every layer of horizontally arranged several coal base microporous carbon pipes, and inlet end is socketed air inlet channel closure, Exhaust end socket exhaust channel closure, the air inlet channel closure connect air inlet pipe, the exhaust channel closure connection exhaust pipe, it is described into Air pump, air valve, gas flowmeter and pressure gauge are successively arranged on tracheae, the exhaust pipe is equipped with exhaust valve.
5. a kind of domestic sewage purification device according to claim 1, which is characterized in that the backwash mechanism is by being set to The aeration tube of bottom of pond and the blower being connected with the aeration tube composition.
6. a kind of domestic sewage purification device according to claim 4, which is characterized in that the coal base microporous carbon pipe outside diameter For 8.5~9.3mm, wall thickness is 1.9~2.3mm, 3 μm of micropore average pore size, porosity 48%.
7. a kind of domestic sewage purification device according to claim 5, which is characterized in that the aeration tube upper half arc surface Uniformly distributed solarization air cap, is aerated pipe outside diameter 20mm, wall thickness 2.1mm, solarization air cap average pore size 8mm.
CN201822243917.0U 2018-12-28 2018-12-28 A kind of domestic sewage purification device Active CN209619118U (en)

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