CN109607951A - A kind of domestic sewage purification device and method - Google Patents
A kind of domestic sewage purification device and method Download PDFInfo
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- CN109607951A CN109607951A CN201811622649.1A CN201811622649A CN109607951A CN 109607951 A CN109607951 A CN 109607951A CN 201811622649 A CN201811622649 A CN 201811622649A CN 109607951 A CN109607951 A CN 109607951A
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- hydrolysis acidification
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- 239000010865 sewage Substances 0.000 title claims abstract description 44
- 238000000746 purification Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000012528 membrane Substances 0.000 claims abstract description 41
- 230000007062 hydrolysis Effects 0.000 claims abstract description 34
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 33
- 230000020477 pH reduction Effects 0.000 claims abstract description 33
- 238000005273 aeration Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 28
- 238000009298 carbon filtering Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000003760 magnetic stirring Methods 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims description 25
- 239000003245 coal Substances 0.000 claims description 13
- 239000006004 Quartz sand Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 244000005700 microbiome Species 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 230000000813 microbial effect Effects 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 2
- 230000001079 digestive effect Effects 0.000 claims description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000000703 anti-shock Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 238000011282 treatment Methods 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000003651 drinking water Substances 0.000 description 4
- 235000020188 drinking water Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 229920000037 Polyproline Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000005446 dissolved organic matter Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 206010008631 Cholera Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
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- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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- 239000002351 wastewater Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
Abstract
The present invention proposes a kind of domestic sewage purification device and method, 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 present invention 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
Technical field
The invention belongs to the technical field of sanitary sewage disposal more particularly to a kind of domestic sewage purification device and methods.
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
The technical problem to be solved by the invention is to solve the above problems providing a kind of purifying domestic sewage dress
It sets and method, had not only had the effect of MABR process characteristic but also effective dephosphorization and strengthened denitrification can be reached.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of domestic sewage purification device, feature
It is, including hydrolysis acidification pool, membrane aerated bioreactor and carbon filter, two sides are separately connected the at the top of the hydrolysis acidification pool
One water inlet pipe and the first overflow pipe, first overflow pipe are connected with the bottom water inlet of the membrane aerated bioreactor, film
The top delivery port of aeration and biological reactor is connected by the second overflow pipe with the side top inlet of the carbon filtering pool, carbon filtering pool
The 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, described to disappear
Change liquid return pipe and be equipped with elevator pump, input end protrudes under the liquid level of membrane aerated bioreactor, on the mud return line according to
Secondary to be equipped with sludge pump and sludge reflux valve, input end protrudes at the top of carbon filtering pool, connects sludge pipe on mud return line, on sludge pipe
Equipped with mud valve；It is equipped with film aeration and biological reaction mechanism in membrane aerated bioreactor, is set on membrane aerated bioreactor bottom plate
Having heaters and magnetic stirring apparatus；Filter material layer and supporting layer are equipped in carbon filtering pool, 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
Connect the second air inlet pipe, the exhaust channel closure connects exhaust pipe, be successively arranged in second air inlet pipe air pump, air valve,
Gas flowmeter 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.
A kind of purifying domestic sewage method, which comprises the steps of:
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 beneficial effects of the present invention are: 1, a kind of domestic sewage purification device and method are provided, combine hydrolysis acidification pool,
The characteristics of MABR and carbon filter three kinds of technique, enhances the effect of MABR denitrogenation, compensates for its deficiency to phosphorus without removal effect；
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, aeration effect
Rate height (100%), unit volume aeration membrane area is big, and oxygen delivery capacity is high, and single equipment is high-efficient；4, microorganism it is highly enriched
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 volatilization from causing
Air pollution, sludge yield are few；6, engineering equipment is compact, occupies little space, and small investment, power energy consumption is low, easy to operate, process
Control can automate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
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, the second air inlet pipe of 13-, 14- pressure gauge, 15- elevator pump, 16- nitrification liquid return pipe, 17- exhaust pipe,
18- exhaust valve, the second overflow pipe of 19-, 20- quartz sand, 21- bioactivity breeze, 22- cobble, 23- carbon filter, 24- water outlet
Pipe, 25- blower, 26- aeration tube, 27- mud valve, 28- sludge pump, 29- sludge reflux valve, 30- mud return line, 31- spoil disposal
Pipe.
Specific embodiment
For a better understanding of the invention, the invention will be further described with reference to the accompanying drawings and examples.
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 filtering pool, and the carbon filtering pool 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 digestive juice 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 filtering pool, 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 filtering pool
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 filtration bottom of pond portion, 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 the second air inlet pipe 13,
It is vented channel closure and connects exhaust pipe 17, air pump 10, air valve 11, gas flowmeter 12 and pressure are successively arranged in the second air inlet pipe
Power table 14, exhaust pipe are 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.
Processing present invention employs mode associated with " filter of hydrolysis acidification pool+MABR+ carbon " to sewage progress system, hydrolysis
On the one hand acidification pool enhances the effect of MABR denitrogenation, on the other hand can play to a certain extent centainly with after MABR combination
Biological phosphate-eliminating effect, afterwards plus carbon filter can not only reach adsorption and dephosphorization effect to a certain extent, there are also secondary settling tanks
Effect.On the whole, the present invention had not only enhanced the effect of MABR denitrogenation, but also compensated for its deficiency to phosphorus without removal effect.
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 a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
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 filtering pool is connected, and the carbon filtering pool 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 digestive juice 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 filtering pool
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 filtering pool 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 charcoal
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, and the exhaust channel closure connects second exhaust pipe, institute
It states and is successively arranged air pump, air valve, gas flowmeter and pressure gauge in the second air inlet pipe, 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.
8. a kind of high strength domestic sewage processing method, which comprises the steps of:
S1) sewage progresses into hydrolysis acidification pool through water inlet pipe, and sewage is aerated by the first overflow pipe from film after hydrolysis acidification
The bottom of bioreactor enters membrane aerated bioreactor；
S2) membrane aerated bioreactor is run, and adjusts air valve and exhaust valve, is controlled gas flow, is strictly controlled by pressure gauge
Gas pressure in reactor processed realizes the still exposure of the biomembrane into bioreactor to keep partial pressure lower than bubble point
Gas；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, and passes through respectively
Quartz sand, bioactivity breeze double medium filtration are crossed, 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, followed in formation
Loop system；
S5) when the biofilm thickness adhered on coal base microporous carbon pipe is thicker, microbial activity weakens, and wastewater treatment efficiency obviously drops
When low, magnetic stirring apparatus revolving speed can be suitably tuned up, aggravates the impact strength of sewage and biomembrane to keep the biomembrane of aging de-
It falls 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 carried out at regular intervals to be aerated anti-
It rinses, to achieve the effect that clean filtrate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115403149A (en) * | 2022-09-20 | 2022-11-29 | 中建生态环境集团有限公司 | Biological synchronous nitrification and denitrification reactor for sewage treatment |
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