CN109437400A - A kind of coal mine sewage reuse processing unit and method - Google Patents
A kind of coal mine sewage reuse processing unit and method Download PDFInfo
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- CN109437400A CN109437400A CN201811548055.0A CN201811548055A CN109437400A CN 109437400 A CN109437400 A CN 109437400A CN 201811548055 A CN201811548055 A CN 201811548055A CN 109437400 A CN109437400 A CN 109437400A
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- 239000010865 sewage Substances 0.000 title claims abstract description 81
- 239000003245 coal Substances 0.000 title claims abstract description 74
- 238000012545 processing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 94
- 239000001301 oxygen Substances 0.000 claims abstract description 94
- 239000012528 membrane Substances 0.000 claims abstract description 76
- 239000010802 sludge Substances 0.000 claims abstract description 65
- 239000000945 filler Substances 0.000 claims abstract description 39
- 238000005273 aeration Methods 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000000108 ultra-filtration Methods 0.000 claims description 36
- 239000012510 hollow fiber Substances 0.000 claims description 29
- 238000010992 reflux Methods 0.000 claims description 22
- 238000011010 flushing procedure Methods 0.000 claims description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 10
- 238000011001 backwashing Methods 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 230000000813 microbial effect Effects 0.000 claims description 4
- 241000108664 Nitrobacteria Species 0.000 claims description 3
- 239000002033 PVDF binder Substances 0.000 claims description 3
- OHVGNSMTLSKTGN-BTVCFUMJSA-N [C].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O Chemical compound [C].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O OHVGNSMTLSKTGN-BTVCFUMJSA-N 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000003672 processing method Methods 0.000 description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 3
- 239000010840 domestic wastewater Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 238000002306 biochemical method Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of coal mine sewage reuse processing unit for being compounded with biomembrane Yu film biological treatment system, and the present invention also provides a kind of methods of coal mine sewage reuse processing.A kind of coal mine sewage reuse processing unit, including the oxygen compatibility pool, aerobic tank and membrane bioreactor set gradually；First support in oxygen compatibility pool equipped with hydraulic jet component and oxygen filler and for hanging simultaneous oxygen filler, hydraulic jet component includes multiple ejectors；Aeration component, aerobic combination filler and the second support for hanging aerobic combination filler are equipped in aerobic tank；The buffer board of interlaced arrangement is equipped in membrane bioreactor, buffer board forms buffer area adjacent to aerobic tank, multiple buffer boards, is not provided with forming reaction zone inside the membrane bioreactor of buffer board, reaction zone is equipped with hyperfiltration membrane assembly.Apparatus of the present invention take up little area, and operating cost is low, and hyperfiltration membrane assembly cleaning frequency is low in membrane bioreactor pond, and the service life is long, and excess sludge is not generated in treatment process.
Description
Technical field
The present invention relates to a kind of sewage-treatment plant and methods, in particular to a kind of to handle for coal mine sewage reuse
Device and method, belong to environmental protection with clearer production technology field.
Background technique
Since a very long time, coal industry is the pillar industry of China's economy, and Coal Mine is more, and range is wide, yield
Greatly.With the rapid development of country in this year, the transition and upgrade of energy industry, the processing and utilization of coal mine sewage require more and more tighter
Lattice, or even in the area having, environmental protection administration requires coal mine to realize wastewater zero discharge.Coal mining enterprise is to solve mine domestic wastewater
Caused by environmental pollution and the problems such as meet environmental standard, treatment facility need to be increased in raw ore area and carry out upgrading, if adopting
It is designed with traditional biochemical method, the volume for handling structures is often larger, and difficulty of construction is big, invests relatively high.
Coal mine sanitary sewage water is big, and have industry characteristic is bath wastewater, and waste strength is usually lower, these features
Determine that organic concentration BOD5 value is relatively low in its water quality.It is special containing trade effluents such as many slack coal flying dusts in coal mine plant effuent
Property sewage enter after sanitary sewage that make the sewage slightly be in greyish black color, major pollutants in suspend or the coal dust of colloidal,
Flying dust etc..
Conventional biochemical technique is limited for N, P removal effect in sewage of low concentration, in addition coal mine Sewage Pollution object
Concentration is relatively low, is easy to produce subalimentation in microorganism growth, causes treatment effect poor, treated, and mine domestic wastewater is difficult
To reach new discharge standard or industrial reuse water requirement.
Therefore, the shortcoming in mine domestic wastewater conventional treatment how is effectively solved, is found low dense suitable for mining area
The processing method for spending sanitary sewage makes final outflow water meet production and miscellaneous water requirement, can preferably realize the resource of sewage
The problem of changing and utilize, being those skilled in the art's urgent need to resolve.
Summary of the invention
The purpose of the present invention is to provide a kind of coal mine sanitary sewages for being compounded with biomembrane and film biological treatment system to return
The biological concentration of high-density ecological carrier filler and film biology are passed through using multiphase mud film biologic treating technique with processing unit
The biological crown_interception of reactor, is substantially improved biochemical system adaptability and denitrogenation dephosphorizing ability, so that coal mine biochemical sewage passes through
After device processing, water outlet meets industrial reuse water quality standard, solves the problems, such as to propose in background above technology.
Another object of the present invention is to provide a kind of coal mine sewage reuse processing method, gathered bioanalysis,
A variety of processing methods such as physical method are suitable for processing underload coal mine sanitary sewage.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of coal mine sewage reuse processing unit, including the oxygen compatibility pool, aerobic tank and membrane biological reaction set gradually
Device；First support in the oxygen compatibility pool equipped with hydraulic jet component and oxygen filler and for hanging simultaneous oxygen filler, waterpower are penetrated
Flowing component includes multiple ejectors；Aeration component, aerobic combination filler is equipped in the aerobic tank and for hanging aerobic group
Close the second support of filler；The buffer board of interlaced arrangement is equipped in the membrane bioreactor, buffer board is more adjacent to aerobic tank
A buffer board forms buffer area, is not provided with forming reaction zone inside the membrane bioreactor of buffer board, reaction zone is equipped with ultrafiltration membrane
Component, hyperfiltration membrane assembly include hollow fiber ultrafiltration membrane, the aeration flushing pump for being aerated washing hollow-fiber ultrafiltration membrane, are used for
Washing hollow-fiber ultrafiltration membrane simultaneously removes the backwashing pump of surface attached biological film and is discharged for hollow fiber ultrafiltration membrane true
Empty pump water pump, hollow fiber ultrafiltration membrane are set to inside reaction zone, and aeration flushing pump, backwashing pump and vacuum water pump are raw set on film
Outside object reactor, the membrane bioreactor is additionally provided with for by the sludge reflux of sludge reflux to oxygen compatibility pool and aerobic tank
Component.
Preferably, the ejector includes for connecting the water inflow nozzle of external water inlet pipe, connecting with water inflow nozzle
Penstock and cover at the water inlet impact-absorbing shell of penstock end.The ejector can make to generate larger flow velocity into water, simultaneous
Waterpower agitation is formed in oxygen pond, is conducive to and oxygen sludge is mixed with the uniform of sanitary sewage.
Preferably, the simultaneous oxygen filler is denitrification ecology filler, and oxygen filler in the suspension height of first support
It is 0.5~0.6 times of oxygen compatibility pool height, and the packing ratio of oxygen filler is 0.1~0.3.Pass through microculture and denitrifying bacterium
Field planting, denitrification ecology filler can effectively be enriched with facultative microbe, form the micro- life of simultaneous oxygen of fine and close biomembrane and suspended state
The degradation of pollutant and the removing of total nitrogen in sanitary sewage are completed in object synchronous effect.
Preferably, the aeration component includes multiple vertically disposed detachable aeration tubes, each detachable aeration
Tube end is equipped with aeration head, and multiple detachable aeration tubes are connected by horizontal tracheae.
Preferably, the aerobic combination filler is polyesters floating stuffing, the packing ratio of aerobic combination filler is 0.2
~0.4.Polyesters floating stuffing can carry out the culture enrichment of decarburization bacterium and nitrifier, and further decompose oxygen compatibility pool and do not divide thoroughly
Mineralized nitrogen is nitrate nitrogen by the pollutant and ammonia nitrogen of solution.
Preferably, the hollow fiber ultrafiltration membrane is the ultrafiltration membrane made of polysulfones and polyvinylidene fluoride material, in
The membrane aperture of fibre ultrafiltration film is 5~30nm.
Preferably, the sludge reflux component includes that the mud return line of membrane bioreactor bottom is arranged in and sets
The sludge reflux pump outside membrane bioreactor is set, sludge reflux pump is connect with mud return line.Mud return line and sludge
Remaining sludge behind the buffer area of membrane bioreactor and reaction zone processing sewage is back to oxygen compatibility pool respectively and become reconciled by reflux pump
Oxygen pond maintains the sludge total amount in pond to supplement the consumption of sludge.
A method of the processing of coal mine sewage reuse is carried out using the coal mine sewage reuse processing unit, it should
Method the following steps are included:
(1) it pre-processes: the coal mine sanitary sewage mixed under room temperature being removed into oil removal through grid and air bearing pretreatment, is reached
COD < 300mg/L, SS < 100mg/L, ammonia nitrogen < 70mg/L, total phosphorus < 10mg/L store spare；
(2) oxygen compatibility pool is handled: the coal mine sanitary sewage of step (1) is promoted by oxygen compatibility pool bottom by elevator pump into simultaneous
Oxygen pond, when coal mine sewage reuse processing unit brings into operation, activated sludge is added into oxygen compatibility pool makes sludge concentration in pond
It is maintained at 3~5g/L；Initial operating stage adds denitrifying bacteria into oxygen compatibility pool and is colonized, add ratio be 0.02~
0.05kg/m3；Initial operating stage adds glucose carbon source into oxygen compatibility pool, carries out actication of culture and promotes microbial activity, adds
Concentration is 100~200mg/L；Utilize the dissolved oxygen in phegma by dissolved oxygen concentration tune in oxygen compatibility pool by sludge reflux component
For section in 0.3~1.0mg/L, making HRT (hydraulic detention time) of the coal mine sanitary sewage in oxygen compatibility pool is 4~8h；
(3) aerobic tank is handled: the coal mine sanitary sewage of step (2) enters aerobic tank, will be in aerobic tank by aeration component
Dissolved oxygen concentration maintains 3.0mg/L or more, and nitrobacteria is added into aerobic tank, enhances ammonia nitrogen removal ability, adds ratio
For 0.01~0.03kg/m3；Sludge concentration is set in aerobic tank to reach 7g/L or more from 2 initial~4g/L；Keep coal mine life dirty
HRT of the water in oxygen compatibility pool is 3~6h；
(4) Membrane Bioreactor for Wastewater Treatment: the coal mine sanitary sewage of step (3) enters buffer area, and sludge therein is trapped
It sinks with temporary；Coal mine sanitary sewage containing a small amount of sludge enters reaction zone, is acted on using hollow fiber ultrafiltration membrane, and muddy water is separated；
Flushing pump is normally opened that dissolved oxygen concentration in pond is maintained 2.0~4.0mg/L and rinses out the biomembrane of aging for aeration；Backwashing pump
It opened every 30~50 days and once hollow fiber ultrafiltration membrane is backwashed, remove the tamper on film and restore the logical of film
Amount；Sludge reflux component is normally opened to be back to oxygen compatibility pool and aerobic for remaining sludge behind buffer area and reaction zone processing sewage respectively
Pond makes the return sludge ratio 1.0~3.0 of oxygen compatibility pool, makes the return sludge ratio 0.5~2.0 of aerobic tank；Coal mine sanitary sewage
HRT in membrane bioreactor is 4~6h, and final outflow water is made to reach COD < 60mg/L, BOD5< 10mg/L, coloration < 30, ammonia
Nitrogen < 10mg/L, total phosphorus < 1mg/L.
The beneficial effects of the present invention are:
A kind of coal mine sewage reuse processing unit of the invention, is compounded with biomembrane and film biological treatment system, dress
It sets and takes up little area, operating cost is low, and hyperfiltration membrane assembly cleaning frequency is low in membrane bioreactor pond, and the service life is long；The device is especially suitable
In the coal mine sanitary sewage of processing low concentration, recycle water standard is reached, and do not generate excess sludge in treatment process, flowed back
Aging sludge anoxic phases can be used as denitrification process Institute of Micro-biology need carbon source, achieve the effect that sludge itself consume；This
A kind of coal mine sewage reuse processing method of invention, has gathered a variety of processing methods such as bioanalysis, physical method, has been substantially improved
Biochemical system adaptability and denitrogenation dephosphorizing ability can be good at the coal mine sanitary sewage for handling low concentration.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
In figure: 1, elevator pump, 2, electromagnetic flowmeter, 3, effluent weir, 4, simultaneous oxygen filler, 5, water inflow nozzle, 6, penstock,
7, water inlet impact-absorbing shell, 8, aerobic combination filler, 9, detachable aeration tube, 10, blower, 11, buffer board, 12, Hollow Fiber Ultrafiltration
Film, 13, aeration flushing pump, 14, backwashing pump, 15, sludge reflux pump, 16, vacuum water pump, 17, first support, 18, second
Bracket, 19, aeration head, 20, buffer area, 21, reaction zone, 22, mud return line, 100, oxygen compatibility pool, 200, aerobic tank, 300, film
Bioreactor.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.It answers
Work as understanding, implementation of the invention is not limited by the following examples, the accommodation in any form done to the present invention and/or
Change falls within the scope of the present invention.
Embodiment:
A kind of coal mine sewage reuse processing unit as shown in Figure 1, including the oxygen compatibility pool 100, aerobic set gradually
Pond 200 and membrane bioreactor 300.
The elevator pump 1 for coal mine sanitary sewage to be pumped into oxygen compatibility pool is equipped with before coal mine sewage reuse processing unit,
Pipeline between elevator pump and oxygen compatibility pool is equipped with electromagnetic flowmeter 2.
First support 17 in oxygen compatibility pool equipped with hydraulic jet component and oxygen filler 4 and for hanging simultaneous oxygen filler.And oxygen
Without aerating system in pond.Oxygen compatibility pool internal upper part is equipped with effluent weir 3, for coal mine sanitary sewage to be flowed into aerobic tank bottom with pipeline
Portion.
Hydraulic jet component includes multiple ejectors, and each ejector includes the water inflow nozzle for connecting external water inlet pipe
5, the penstock 6 that is connect with water inflow nozzle and the water inlet impact-absorbing shell 7 for covering at penstock end.The ejector can make into water
Larger flow velocity is generated, forms waterpower agitation in oxygen compatibility pool, is conducive to and oxygen sludge is mixed with the uniform of sanitary sewage.
And oxygen filler is the suspension of denitrification ecology filler, filler model MKMF-A01, and oxygen filler in first support
Height is 0.5~0.6 times of oxygen compatibility pool height, and the packing ratio of oxygen filler is 0.1~0.3.Pass through microculture and anti-nitre
Change the field planting of bacterium, denitrification ecology filler can effectively be enriched with facultative microbe, form the simultaneous oxygen of fine and close biomembrane and suspended state
Microbial synchronous effect, completes the degradation of pollutant and the removing of total nitrogen in sanitary sewage.
Aeration component, aerobic combination filler 8 and the second support 18 for hanging aerobic combination filler are equipped in aerobic tank.
Blower 10, blower connection aeration component are equipped at the top of aerobic tank.
Being aerated component includes multiple vertically disposed detachable aeration tubes 9, and each detachable aeration tube end is equipped with aeration
First 19, multiple detachable aeration tubes are connected by horizontal tracheae.
Aerobic combination filler is polyesters floating stuffing, and the packing ratio of aerobic combination filler is 0.2~0.4.Polyesters are outstanding
Floating filler can carry out the culture enrichment of decarburization bacterium and nitrifier, and further decompose pollutant and ammonia that oxygen compatibility pool does not decompose thoroughly
Mineralized nitrogen is nitrate nitrogen, then so that mixed liquor is back to the denitrification that oxygen compatibility pool completes nitrate nitrogen subsequently through sludge reflux by nitrogen
Removing.
The buffer board 11 of interlaced arrangement is equipped in membrane bioreactor, buffer board is formed adjacent to aerobic tank, multiple buffer boards
Buffer area 20 is not provided with forming reaction zone 21 inside the membrane bioreactor of buffer board.Buffer board is dirty for retaining coal mine life
Sludge in water mitigates film biosystem media area mud, extends the cleaning frequency of film, improves producing water ratio.Reaction zone is equipped with super
Filter membrane component, hyperfiltration membrane assembly include hollow fiber ultrafiltration membrane 12, the aeration flushing for being aerated washing hollow-fiber ultrafiltration membrane
Pump 13 for washing hollow-fiber ultrafiltration membrane and removes the backwashing pump 14 of surface attached biological film and for Hollow Fiber Ultrafiltration
The vacuum water pump 16 of film water outlet, the volume of hollow fiber ultrafiltration membrane account for the 40%~60% of reaction zone, aeration flushing pump, recoil
It washes pump and vacuum water pump is set to outside membrane bioreactor.Under the action of being aerated flushing, microbes are super in doughnut
Filter membrane surface forms the biomembrane of layer, and the microorganism in biomembrane can further degrade the pollution in coal mine sanitary sewage
Object, while the filtration of the swabbing action and hollow fiber ultrafiltration membrane by vacuum water pump, can remove coal mine sanitary sewage
In micro-content organism and the extracellular substance of microorganism macromolecular, profound level purification sewage.
Hollow fiber ultrafiltration membrane is set to inside reaction zone, and hollow fiber ultrafiltration membrane is by polysulfones and polyvinylidene fluoride material system
At ultrafiltration membrane, the membrane aperture of hollow fiber ultrafiltration membrane is 5~30nm.Hollow fiber ultrafiltration membrane is negatively charged, due to sludge sheet
Body is negatively charged, forms Charge repulsion between the film surface energy and sludge, and sludge is effectively avoided to be attached to film surface bring film
Hole plug problem reduces the cleaning frequency of film.
Membrane bioreactor is additionally provided with for by the sludge reflux component of sludge reflux to oxygen compatibility pool and aerobic tank, sludge to be returned
Stream component includes the mud return line 22 that membrane bioreactor bottom is arranged in and the sludge being arranged in outside membrane bioreactor
Reflux pump 15, sludge reflux pump is connect with mud return line.Mud return line and sludge reflux pump delaying membrane bioreactor
Remaining sludge is back to oxygen compatibility pool and aerobic tank respectively after rushing area and reaction zone processing sewage, to supplement the consumption of sludge,
Maintain the sludge total amount in pond.
A method of the processing of coal mine sewage reuse, the party are carried out using the coal mine sewage reuse processing unit
Method comprises the concrete steps that:
(1) it pre-processes: the coal mine sanitary sewage mixed under room temperature being removed into oil removal through grid and air bearing pretreatment, is reached
COD < 300mg/L, SS < 100mg/L, ammonia nitrogen < 70mg/L, total phosphorus < 10mg/L store spare；
(2) oxygen compatibility pool is handled: the coal mine sanitary sewage of step (1) is promoted by oxygen compatibility pool bottom by elevator pump into simultaneous
Oxygen pond, when coal mine sewage reuse processing unit brings into operation, activated sludge is added into oxygen compatibility pool makes sludge concentration in pond
It is maintained at 3~5g/L；Initial operating stage adds denitrifying bacteria into oxygen compatibility pool and is colonized, add ratio be 0.02~
0.05kg/m3；Initial operating stage adds glucose carbon source into oxygen compatibility pool, carries out actication of culture and promotes microbial activity, adds
Concentration is 100~200mg/L；Utilize the dissolved oxygen in phegma by dissolved oxygen concentration tune in oxygen compatibility pool by sludge reflux component
For section in 0.3~1.0mg/L, making HRT (hydraulic detention time) of the coal mine sanitary sewage in oxygen compatibility pool is 4~8h；
(3) aerobic tank is handled: the coal mine sanitary sewage of step (2) enters aerobic tank, will be in aerobic tank by aeration component
Dissolved oxygen concentration maintains 3.0mg/L or more, and nitrobacteria is added into aerobic tank, enhances ammonia nitrogen removal ability, adds ratio
For 0.01~0.03kg/m3；Sludge concentration is set in aerobic tank to reach 7g/L or more from 2 initial~4g/L；Keep coal mine life dirty
HRT of the water in oxygen compatibility pool is 3~6h；
(4) Membrane Bioreactor for Wastewater Treatment: the coal mine sanitary sewage of step (3) enters buffer area, and sludge therein is trapped
It sinks with temporary；Coal mine sanitary sewage containing a small amount of sludge enters reaction zone, is acted on using hollow fiber ultrafiltration membrane, and muddy water is separated；
Flushing pump is normally opened that dissolved oxygen concentration in pond is maintained 2.0~4.0mg/L and rinses out the biomembrane of aging for aeration；Backwashing pump
It opened every 30~50 days and once hollow fiber ultrafiltration membrane is backwashed, remove the tamper on film and restore the logical of film
Amount；Sludge reflux component is normally opened to be back to oxygen compatibility pool and aerobic for remaining sludge behind buffer area and reaction zone processing sewage respectively
Pond makes the return sludge ratio 1.0~3.0 of oxygen compatibility pool, makes the return sludge ratio 0.5~2.0 of aerobic tank；Coal mine sanitary sewage
HRT in membrane bioreactor is 4~6h, and final outflow water is made to reach COD < 60mg/L, BOD5< 10mg/L, coloration < 30, ammonia
Nitrogen < 10mg/L, total phosphorus < 1mg/L.
After processing in the processing unit and method 5 weeks continuous to certain coal mine sanitary sewage, water quality is detected, the results are shown in Table 1.
The inlet flow-patterm of processing test is controlled 7.5~8.5.
Certain the coal mine sanitary sewage disposal catalog data of table 1
| Water quality indicator | pH | COD | BOD5 | NH3-N | Total P |
| 0 week | 6.8 | 277 | 82 | 53 | 4 |
| 1 week | 7.1 | 42.3 | 5.9 | 1.2 | 0.4 |
| 2 weeks | 7.3 | 33.7 | 4.1 | 0.5 | 0.3 |
| 3 weeks | 6.6 | 15.5 | 7.1 | 0.8 | 0.6 |
| 4 weeks | 6.9 | 24.2 | 5.4 | 2.1 | 0.3 |
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (8)
1. a kind of coal mine sewage reuse processing unit, it is characterised in that: the coal mine sewage reuse processing unit includes
Oxygen compatibility pool, aerobic tank and the membrane bioreactor set gradually；
First support in the oxygen compatibility pool equipped with hydraulic jet component and oxygen filler and for hanging simultaneous oxygen filler, waterpower
Fluidic module includes multiple ejectors；
Aeration component, aerobic combination filler and the second support for hanging aerobic combination filler are equipped in the aerobic tank；
The buffer board of interlaced arrangement is equipped in the membrane bioreactor, buffer board is formed adjacent to aerobic tank, multiple buffer boards
Buffer area is not provided with forming reaction zone inside the membrane bioreactor of buffer board, and reaction zone is equipped with hyperfiltration membrane assembly, ultrafiltration membrane group
Part includes hollow fiber ultrafiltration membrane, the aeration flushing pump for being aerated washing hollow-fiber ultrafiltration membrane, for washing hollow-fiber
Ultrafiltration membrane simultaneously removes the backwashing pump of surface attached biological film and the vacuum water pump for hollow fiber ultrafiltration membrane water outlet, hollow
Fiber ultrafiltration membrane is set to inside reaction zone, and aeration flushing pump, backwashing pump and vacuum water pump are set to outside membrane bioreactor,
The membrane bioreactor is additionally provided with for by the sludge reflux component of sludge reflux to oxygen compatibility pool and aerobic tank.
2. a kind of coal mine sewage reuse processing unit according to claim 1, it is characterised in that: the ejector
Including for connecting external water inlet pipe water inflow nozzle, the penstock that connect with water inflow nozzle and cover at penstock end
Water inlet impact-absorbing shell.
3. a kind of coal mine sewage reuse processing unit according to claim 1, it is characterised in that: the simultaneous oxygen is filled out
Material is denitrification ecology filler, and oxygen filler is filled out in 0.5 ~ 0.6 times that the suspension height of first support is oxygen compatibility pool height, and oxygen
The packing ratio of material is 0.1 ~ 0.3.
4. a kind of coal mine sewage reuse processing unit according to claim 1, it is characterised in that: the aeration group
Part includes multiple vertically disposed detachable aeration tubes, and each detachable aeration tube end is equipped with aeration head, multiple detachable exposures
Tracheae is connected by horizontal tracheae.
5. a kind of coal mine sewage reuse processing unit according to claim 1, it is characterised in that: described aerobic group
Conjunction filler is polyesters floating stuffing, and the packing ratio of aerobic combination filler is 0.2 ~ 0.4.
6. a kind of coal mine sewage reuse processing unit according to claim 1, it is characterised in that: the hollow fibre
Tieing up ultrafiltration membrane is the ultrafiltration membrane made of polysulfones and polyvinylidene fluoride material, and the membrane aperture of hollow fiber ultrafiltration membrane is 5 ~ 30nm.
7. a kind of coal mine sewage reuse processing unit according to claim 1, it is characterised in that: the sludge returns
Stream component includes that the mud return line that membrane bioreactor bottom is arranged in and the sludge being arranged in outside membrane bioreactor return
Stream pump, sludge reflux pump are connect with mud return line.
8. a kind of carry out coal mine sanitary sewage time using a kind of coal mine sewage reuse processing unit described in claim 1-8
With the method for processing, it is characterised in that: method includes the following steps:
(1) pre-process: by the coal mine sanitary sewage mixed under room temperature through grid and air bearing pretreatment remove oil removal, reach COD <
300mg/L, SS < 100mg/L, ammonia nitrogen < 70mg/L, total phosphorus < 10mg/L store spare；
(2) oxygen compatibility pool is handled: the coal mine sanitary sewage of step (1) being promoted by elevator pump and enters simultaneous oxygen by oxygen compatibility pool bottom
Pond, when coal mine sewage reuse processing unit brings into operation, activated sludge is added into oxygen compatibility pool protects sludge concentration in pond
It holds in 3 ~ 5g/L；Initial operating stage adds denitrifying bacteria into oxygen compatibility pool and is colonized, and the ratio that adds is 0.02 ~ 0.05kg/
m3；Initial operating stage adds glucose carbon source into oxygen compatibility pool, carries out actication of culture and promotes microbial activity, adding concentration is
100~200mg/L；Dissolved oxygen concentration in oxygen compatibility pool is adjusted 0.3 using the dissolved oxygen in phegma by sludge reflux component
~ 1.0mg/L makes HRT(hydraulic detention time of the coal mine sanitary sewage in oxygen compatibility pool) it is 4 ~ 8h；
(3) aerobic tank is handled: the coal mine sanitary sewage of step (2) enters aerobic tank, will be dissolved in aerobic tank by being aerated component
Oxygen concentration maintains 3.0mg/L or more, and nitrobacteria is added into aerobic tank, enhances ammonia nitrogen removal ability, and the ratio of adding is
0.01~0.03kg/m3；Sludge concentration is set in aerobic tank to reach 7g/L or more from 2 initial ~ 4g/L；Coal mine sanitary sewage is set to exist
HRT in oxygen compatibility pool is 3 ~ 6h；
(4) Membrane Bioreactor for Wastewater Treatment: the coal mine sanitary sewage of step (3) enters buffer area, and sludge therein is trapped and temporarily
It is heavy；Coal mine sanitary sewage containing a small amount of sludge enters reaction zone, is acted on using hollow fiber ultrafiltration membrane, and muddy water is separated；Aeration
Flushing pump is normally opened to be maintained 2.0 ~ 4.0mg/L for dissolved oxygen concentration in pond and rinses out the biomembrane of aging；Backwashing pump every
Unlatching in 30 ~ 50 days once backwashes hollow fiber ultrafiltration membrane, removes the tamper on film and restores the flux of film；Sludge
Reflux assembly is normally opened to be back to oxygen compatibility pool and aerobic tank for remaining sludge behind buffer area and reaction zone processing sewage respectively, makes simultaneous
The return sludge ratio in oxygen pond is 1.0 ~ 3.0, makes the return sludge ratio 0.5 ~ 2.0 of aerobic tank；Coal mine sanitary sewage is in film biology
HRT in reactor is 4 ~ 6h, and final outflow water is made to reach COD < 60mg/L, BOD5< 10mg/L, coloration < 30, ammonia nitrogen < 10mg/L,
Total phosphorus < 1mg/L.
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