CN205398323U - Device of high ammonia -nitrogen concentration wastewater resource zero release processing of membrane aeration and membrane absorption coupling technology - Google Patents
Device of high ammonia -nitrogen concentration wastewater resource zero release processing of membrane aeration and membrane absorption coupling technology Download PDFInfo
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- CN205398323U CN205398323U CN201620181340.3U CN201620181340U CN205398323U CN 205398323 U CN205398323 U CN 205398323U CN 201620181340 U CN201620181340 U CN 201620181340U CN 205398323 U CN205398323 U CN 205398323U
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Abstract
The utility model provides a device of high ammonia -nitrogen concentration wastewater resource zero release processing of membrane aeration and membrane absorption coupling technology, belongs to the environmental engineering field. At first adopt among the membrane aeration way desorption ammonia nitrogen wastewater about 60% ammonia nitrogen, adopt the membrane to absorb about 99% ammonia nitrogens of surplus in the multistage deamination mode desorption waste water again, reach in line effect after the former water treatment of messenger high ammonia -nitrogen concentration. It finishes the absorption fluid reservoir directly to let in membrane absorption process with the ammonia of isolating among the membrane aeration systems for excessive acid in the fluid reservoir is fallen to absorb in the reaction. Let in by -product recovery system with the absorption liquid of handling again, handle the absorption liquid of high concentration. Reduce to 70% o'clock of former throughput or need shut down for a long time the time at serviceability, all open the washing the air purge system carries out recovery cleaning to the system to the operation that the system can be steady in a long -term keeps.
Description
Technical field
The utility model belongs to field of environment engineering, relates to the technology of ammonia-containing water resource, particularly to one
Application film aeration and the film absorbing coupling technique device to the zero discharge treatment of industry high ammonia-nitrogen wastewater resource.
Background technology
China's water resource famine, freshwater resources are only 1/4th of world average level, domestic master per capita
Polluting in various degree all occur in river, lake and the underground water wanted, and pollute and also aggravate trend.According to environmental protection
Department monitors, and ammonia nitrogen is one of major pollutants.Ammonia nitrogen is to become after entering water body the main harm of environment
The nutrient that algae etc. are biological, causes hazard biological amount reproduction at short notice in water body, consumes water simultaneously
In dissolved oxygen, produce so-called red tide or eutrophication, serious threat fishes and shrimps life security and human and livestock health.This
Outward, the ammonia nitrogen in water can change into nitrite, the nitrous if drunk for a long time, in water under certain condition
Hydrochlorate will form nitrosamine with protein bound, and this is a kind of strong carcinogen, totally unfavorable to health.
In recent years, the Sudden Pollution Accident thus caused happens occasionally, and has a strong impact on the sustainable of Chinese society
Development.
The ammonia-containing water of industrial process discharge is polluted-water and causes the main point that in water body, ammonia nitrogen concentration raises
Source.The ammonia and nitrogen pollution reparation that contrast is carried out on the level such as river, lake, produce from beginning of production minimizing ammonia nitrogen,
Improve the ammonia cyclic utilization rate of production process, and the ammonia nitrogen removal efficiency of sewage treatment plant of raising enterprise, not only
Pollution treatment cost can be substantially reduced, and the consumption of ammonia resource can be reduced, be to prevent China's rivers lake present stage
The Main Means that sea ammonia and nitrogen pollution deteriorates further.
High ammonia-nitrogen wastewater wide material sources, such as coal chemical industrial waste water, coking chemical waste water, petrochemical wastewater, wastewater from chemical industry, rubbish
Rubbish percolate etc., only coking chemical waste water annual emissions has just exceeded 1.8 hundred million tons, it is considered to other industry, conservative estimation,
Total Body Water is about more than 2,000,000 ton day.Owing to above industry ammonia nitrogen in waste water content is high, typically exist
1000-10000mg/L, it is difficult to use biological method to remove, need to individually carry out deamination process.
Owing to current high NH_3-N treating technique mainly has blow-off method, ammonia still process method, magnesium ammonium phosphate sediment method.70%
Above deamination technique uses ammonia still process method, but ammonia still process method has the big processing cost of energy consumption high (about 25 yuan/ton), sets
The shortcomings such as standby fouling is serious, magnesium ammonium phosphate sediment method has the shortcoming that glar amount is big, therefore active demand exploitation warp
Efficient novel high NH_3-N treating and the recovery technology of helping and equipment.
Film absorption technique, as a kind of novel sewage disposal technology, has normal temperature and pressure operation, and energy consumption is low, accounts for
Little, the removal efficiency in ground is up to 95% with first-class feature, to reclaim ammonia nitrogen resource simultaneously, meet recycling economy reason
Read.It is to separate film base gas to combine with traditional physical absorption, chemical absorbing, cryogenic rectification that film absorbs
New separation technology.Compared with traditional absorption techniques, film absorb because of have gas liquid interfacial area greatly, mass transfer
Speed is fast, receive much attention without features such as entrainment, operating condition gentlenesses.
But membrane absorption technology has the following problem that have to solve at present in industrial applications, and one is film
The problem of assembly hydrophiling；Two be film absorption dehydrogenating obtain byproduct of ammonium sulfate, ammonium chloride, etc. accessory substance,
Owing to concentration is low, pH value is low, it is impossible to be used directly as fertilizer, and use the system of " evaporate-crystallization "
, there is again the problem that processing cost is too high in salt technology；Three be high ammonia nitrogen waste liquid use circulation mode and discontinuous
Change mode is run, and floor space and construction cost can be brought to increase, long operational time, the problems such as energy consumption is big,
Restriction in commercial Application is the most, is unfavorable for industrializing large-scale application；Four is that absorbing liquid is due to both sides
Infiltration activity difference and the osmotic distillation effect of high ammonia nitrogen stoste side moisture that causes and the volume of absorbing liquid that brings
Expansion issues.
Authorization Notice No. is that " a kind of method of integrated deamination of ammonia nitrogen waste water film " invention of CN103086453B is special
Profit and the Authorization Notice No. simultaneously applied for thereof are " a kind of ammonia nitrogen waste water film integrated deamination dress of CN203065287U
Put " utility model patent, use vacuum deamination and film absorbing coupling PROCESS FOR TREATMENT high ammonia-nitrogen wastewater, exist asks
Topic is that vacuum deamination system cost is higher, and technological requirement is complicated, and additionally its vacuum deamination system is static system,
The single step time of staying is 2-5 hour, and follow-up film absorption dehydrogenating system is circulating deamination system, processes the time
For 1-3 hour, the slowest owing to processing the time, large-scale industrial water conditioning system there is a need to the biggest occupation of land face
Long-pending, the prospect of the actual application of industry is the least.
" submerged membrane absorption plant and the deamination side that the patent of invention of Application No. 201510364101.1 proposes
Method ", and the patent of invention of Application No. 201410318014.8 propose " a kind of immersion, deflector type, close
The technique of the continuous ammonia nitrogen removal of enclosed hydrophobic membrane ", two patents all have employed the processing mode of immersion deamination, should
Planting processing mode is that the saving won for cost to reduce total ammonia nitrogen absorptivity is taken up an area, and embodies not membrane completely and inhales
The value that skill of knocking off is real.Additionally submerged membrane absorb processing mode be unfavorable for membrane module periodic purge,
Dry to keep hydrophobic film assembly the most well to run, prevent assembly hydrophiling.
" Zero emission method of a kind of high salt high ammonia-nitrogen wastewater " patent of invention of Application No. 201310535302.4
" the zero-emission dress of a kind of high salt high ammonia-nitrogen wastewater with its Application No. 201310535284.X proposed simultaneously
Put " patent of invention, and " a kind of membrane absorption method process high ammonia radiation of Application No. 201310349390.9
The technique of property waste water " all avoided byproduct of ammonium sulfate that film absorption dehydrogenating obtains, ammonium chloride, etc. accessory substance,
Owing to concentration is low, pH value is low, it is impossible to be used directly as fertilizer, and use the system of " evaporate-crystallization "
, there is again the problem that processing cost is too high in salt technology.
In sum, the problem of membrane module hydrophiling, the process problem of absorbing liquid, the batch cycles formula method of operation
Remain the restriction industrialized bottleneck problem of membrane absorption technology.
Utility model content
The utility model overcomes the deficiencies in the prior art, it is provided that a kind of employing film aeration and film absorbing coupling technique
And device, well solve the problem that prior art exists.
The technical solution of the utility model is:
(1) pretreating process: high ammonia-nitrogen wastewater is carried out de-oiling techniques such as (main by) air supportings, make into
Enter the water oil content in next stage film aerating system and be less than 5ppm, by disc filter, guarantor
Peace filter or milipore filter carry out removal of impurities to ammonia nitrogen stoste, make the SS of entrance film aerating system low
In 10mg/L, the surface tension guaranteeing to enter in film aerating system is also needed to should be greater than 60Mn/m,
High ammonia-nitrogen wastewater pH value is adjusted to 10-12；
(2) film aeration: the high ammonia-nitrogen wastewater after step (1) being processed is passed through the film aeration tank of seal,
Film aerator uses hydrophobic hollow fiber membranous system, and film aerator is placed in seal aeration
Chi Zhong；
(3) film absorbs: the high ammonia-nitrogen wastewater after step (2) being processed pumps into film absorptive unit hydrophobic membrane
Inside film silk, by acids absorbing liquid (acids such as sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, organic acid)
Pumping into the shell side of hydrophobic membrane assembly, absorb, absorbing liquid uses endless form to run；Enter one
Walking preferred film absorptive unit uses plural serial stage or/and the form of parallel connection, and high ammonia-nitrogen wastewater side is adopted
With plural serial stage or/and continuous treatment in parallel, requirement and film according to processing the water yield absorb single
The disposal ability of single film of unit arranges suitable progression in parallel, contains according to the ammonia nitrogen of high NH4 source water
Amount and the ammonia nitrogen actual requirement of discharge and film absorptive unit list prop up the disposal ability of film, determine
Series connection progression；In order to ensure the disposal ability of industrial continuous operation, absorbing liquid uses two suctions
Receive flow container, switchover operation.Concentrated acid storage tank (8) continues acid adding in absorbing liquid, maintains and absorbs
The content of acid in liquid, balances out for absorbing the consumption of ammonia nitrogen in high ammonia-nitrogen wastewater；Absorbing liquid is stored up
Online acidometer (9), online ammonia have been respectively mounted it in case a (6) and absorbing liquid storage tank b (7)
Nitrogen instrument (10), paddle；Online acidometer (9) and concentrated acid fluid reservoir (8) co-controlling
The addition of concentrated acid, maintains the acid concentration of absorbing liquid；Online ammonia nitrogen instrument (10) is for prison in real time
Survey the concentration of byproduct in absorbing liquid；Paddle continuously stirred for keeping the suction of lasting acid adding
Receive the homogeneous media in liquid.
(4) clean and air purge: when film runnability weaken to former disposal ability less than 70% time, or because of
When other reasons needs the long period to shut down, need to start and clean and air purge system.Membrane cleaning is
Depending on pollution condition, take suitable chemical, need after Chemical cleaning to use clear water to wash
Remove the chemical agent remaining in membranous system, finally open air pump and system is carried out air purge drying.
(5) byproduct reclaims: reclaim system by pumping into byproduct through the absorbing liquid processed in step (3)
System, concentrates byproduct, the technique such as crystallization, carries out reclaiming and resource recycles.
The device of the above-mentioned zero-emission realizing high ammonia-nitrogen wastewater resource, it is characterised in that pretreatment system is with useless
Water storage tank (1) connects, and film aerator (2) is placed in waste water storage tank (1), and film aerator (2) is adopted
Hydrophobic hollow fiber membranous system, film aerator (2) is used to be connected with blower fan (3), waste water storage tank (1)
Upper end respectively with absorbing liquid storage tank a and being connected, waste water storage tank (1) lower end water outlet and film absorptive unit (4)
Tube side import connect, blower fan (3) also tube side import with film absorptive unit (4) simultaneously is connected；Through film
Product water after absorptive unit (4) absorbs gets rid of film absorptive unit (4)；The shell side of film absorptive unit (4) is respectively
Two closed circuits are formed with absorbing liquid storage tank a (6) and absorbing liquid storage tank b (7)；Absorbing liquid storage tank a (6)
It is connected with byproduct recovery system with the lower end of absorbing liquid storage tank b (7).Absorbing liquid storage tank a (6) and absorption
Liquid storage tank b (7) is connected with concentrated acid fluid reservoir (8) respectively.
Online acidometer (9), online it has been respectively mounted in absorbing liquid storage tank a (6) and absorbing liquid storage tank b (7)
Ammonia nitrogen instrument (10), paddle；Online acidometer (9) adds with concentrated acid fluid reservoir (8) chain control concentrated acid
Dosage, maintains the acid concentration of absorbing liquid；Online ammonia nitrogen instrument (10) is byproduct in monitoring absorbing liquid in real time
Concentration；Homogeneous media in the continuously stirred absorbing liquid for keeping lasting acid adding of paddle；Concentrated acid storage tank is held
Continue acid adding in absorbing liquid, maintain the content of acid in absorbing liquid, balance out for absorbing ammonia nitrogen in high ammonia-nitrogen wastewater
Consumption；
Above-mentioned hydrophobic hollow fiber membranous system structure used is as follows: mainly include film frame, crossbeam, terminal conduit,
Curtain type film assembly, gas distribution pipe, air inlet pipe；Film frame at least includes the vertical beam of four parallel upright, the two of terminal conduit
End is separately fixed at two adjacent vertical beam A and the top of vertical beam B, the most solid between vertical beam A and vertical beam B
Fixed multiple crossbeams, also fix multiple crossbeam between other two adjacent vertical beam C and vertical beam D, vertical beam A and
The crossbeam position between crossbeam and vertical beam C and vertical beam D between vertical beam B interlocks；At vertical beam A and vertical beam B
Bottom between or the bottom of vertical beam C and vertical beam D between be fixed with gas distribution pipe, gas distribution pipe connects with air inlet pipe；
Curtain type film assembly is the curtain structure of multiple hydrophobic hollow fiber spaced and parallel composition of film silk, and hydrophobicity hollow is fine
The surface of dimension film silk is provided with microcellular structure；One end of curtain type film assembly is fixed in terminal conduit, and the other end is fixed on
On gas distribution pipe, and hydrophobic hollow fiber film silk connects with gas distribution pipe；Curtain type film assembly is successively at vertical beam A
And detour between the crossbeam between crossbeam and vertical beam C and vertical beam D between vertical beam B, form space folding
The warp architecture of formula.Film frame is cuboid frame structure, and the distance between vertical beam A and vertical beam B is for long, perpendicular
The a length of height of beam A, the direction being perpendicular to length and height is width；Long: wide: the ratio of height is 1:
(0.6～1): (1.2～1.8), all there has been the tripod of fixation the bottom of 4 sides of cuboid.Adjacent
The hydrophobic hollow fiber film silk spacing of two is 4-5mm.Terminal conduit is parallel with crossbeam topmost to be fixed on
Together；Gas distribution pipe is parallel with the crossbeam of lowermost end to be fixed together.
Eventually through the zero-emission realizing high ammonia-nitrogen wastewater resource using film aeration and film absorbing coupling technique
Technique.
In order to effectively utilize osmotic distillation effect, absorbing liquid only needs to configure at initial period and meets what pipeline ran
Acid absorbing liquid, accounts for the 20-30% of absorbing liquid tank volume.Initial configuration quality percent concentration is 5%-20%
Acid absorbing liquid.
The membrane material used in film aerator (2) and film absorptive unit is that PTFE, PP, PVDF etc. are hydrophobic
Property membrane material, kit form is hollow fiber film assembly, and the aperture of assembly requires as 0.1-0.01 μm.
Clean and in air purge system, clean link and mainly use clear water or chemical agent that film is carried out, make
The kind of concrete medicament and concentration with pollution condition depending on, as used chemical agent to clean film.
During byproduct reclaims, clean link and mainly use clear water or chemical agent that film is carried out, use
Depending on the kind of concrete medicament and concentration are with pollution condition, as used chemical agent to clean film.
The beneficial effects of the utility model are: initially with the ammonia of about 60% in film aeration mode removal of ammonia and nitrogen waste water
Nitrogen, then use the multistage deamination mode of film absorption to remove residue about 99% ammonia nitrogen in waste water, total ammonia removal efficiency surpasses
Cross 99%, after making high NH4 source water process, reach in line effect.By straight for ammonia isolated in film aerating system
Connect and carried out absorption flow container into film absorption process, absorb the acid of excess in flow container for reacting away.To process again
Complete absorbing liquid is passed through byproduct recovery system, processes the absorbing liquid of high concentration.Reduce in service ability
To former disposal ability 70% time or when needing to shut down for a long time, be both needed to open cleaning-air purge system, to being
System carries out maintenance clean, to keep the operation that system can be steady in a long-term.It is hydrophilic that the utility model solves film silk
Change, well make use of absorbing liquid volumetric expansion that osmotic distillation effect brings, achieve effectively water saving and make
The concentration of absorbing liquid product close to saturated, reduce operating cost, improve treatment effeciency, it is achieved that continuous film
Absorb the possibility that the extensive real zero-emission of industrialization runs.
The utility model can obtain the ammonia nitrogen removal efficiency more than 99%, it is achieved high-concentration ammonia nitrogenous wastewater is directly arranged
The standard put, can by waste water contains more than 99% the whole resource of ammonia nitrogen, be changed into effective chemical industry
Product or chemical fertilizer.Effectively extend the shelf life of film, have that construction investment expense is low, operating cost is low,
The plurality of advantages such as floor space is little, treatment effeciency is high.
Accompanying drawing explanation
Fig. 1 film aeration and film absorbing coupling process device figure；
Fig. 2 is film aerator structural representation；
1. waste water storage tank；2. film aerator；3. blower fan；4. film absorptive unit assembly；5. produce water；6. absorbing liquid
Storage tank a；7. absorbing liquid storage tank b；8. concentrated acid storage tank；9. online acidometer；10. online ammonia nitrogen instrument；11 terminals
Pipe；12 crossbeams；13 hydrophobic hollow fiber film silks；14 gas distribution pipes；15 bottom crossbeams；16 terminal casting
Groove；17 top casting grooves；18 air inlet pipe；19 film frame vertical beam A；20 film frame vertical beam B；21 film frame vertical beam C；
22 film frame vertical beam D.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described further, but the utility model is not limited to following enforcement
Example.
Film aeration and film absorbing coupling process unit map Fig. 1.
A, ammonia-containing water enter waste water storage tank (1) through pretreatment, and ammonia-containing water is squeezed into from waste water storage tank by pump
Membrane module (4) inner side (i.e. tube side), the ammonia in waste water is diffused into the opposite side of film through fenestra, produces water (5)
Discharge；
B, waste water tank (1) place film aerator (2), and the upper end of waste water tank (1) is with absorbing liquid storage tank even
Logical；Waste water has the ammonia nitrogen of part with NH3Form by the suction containing superacid byproduct recovery system to be proceeded to
Receive the acid hand cleanser in liquid storage tank to absorb；
C, the acid absorbing liquid of brand-new configuration are squeezed into film absorptive unit (4) film by pump from absorbing liquid storage tank (6)
The outside (i.e. shell side) of assembly, at shell side along membrane fiber outer wall and waste water co-flow, absorbs from film another
Absorbing liquid storage tank is flowed back to after the ammonia that side diffusion comes；Film absorptive unit use plural parallel stage or/and series connection group
Dress form；
D, this device have two absorbing liquid storage tanks arranged side by side, absorbing liquid storage tank a (6) and absorbing liquid storage tank b (7)
Online acidometer (9), online ammonia nitrogen instrument (10), paddle inside it are respectively mounted；Online acidometer (9) is with dense
The addition of acid fluid reservoir (8) chain control concentrated acid, maintains the acid concentration of absorbing liquid；Online ammonia nitrogen instrument (10)
The concentration of byproduct in monitoring absorbing liquid in real time；Paddle continuously stirred for keeping the suction of lasting acid adding
Receive the homogeneous media in liquid；Concentrated acid storage tank continues acid adding in absorbing liquid, maintains the content of acid in absorbing liquid, supports
Disappear for absorbing the consumption of ammonia nitrogen in high ammonia-nitrogen wastewater；When in one of them absorbing liquid storage tank a (6)
When byproduct in absorbing liquid reaches finite concentration, being switched to another absorbing liquid storage tank b (7), absorbing liquid is stored up
Absorbing liquid in case b (7) pumps in membrane module (2), and the ammonia that i.e. aerator (2) stripping goes out is passed through
In absorbing liquid storage tank a (6), in order to neutralize the acid of excess in absorbing liquid storage tank a (6), and make absorbing liquid
The concentration of middle byproduct promotes again, when the no longer excess of the acid in absorbing liquid storage tank a (6), is filled by aeration
Put (2) stripping to go out ammonia and be passed through in absorbing liquid storage tank b (7), the absorption in absorbing liquid storage tank a (6) simultaneously
Liquid pump enters byproduct recovery system, after absorbing liquid storage tank a (6) emptying, more again joins according to certain ratio
Good absorbing liquid is standby；When the byproduct in absorbing liquid storage tank b (7) reaches finite concentration again, switch to
Absorbing liquid in absorbing liquid storage tank a (6) pumps into membrane module (4), it is achieved that the continuity of operation；
E, this process unit have air purge and backwash process: air purge shares a Fans (3) with aerator；
F, this technique realize the zero of high ammonia-nitrogen wastewater resource by use film aeration and film absorbing coupling technique
Discharge technology.
Embodiment 1
Absorb combination process with film aeration and film and process the coal that ammonia nitrogen concentration is 5000mg/L of 1 ton per hour
Wastewater from chemical industry.
(1) pretreating process: mainly by coalescence material, high ammonia nitrogen stoste is carried out de-oiling, make oil-containing in water
Amount, less than 5ppm, carries out removal of impurities by disc filter to ammonia nitrogen stoste, makes entrance film aeration
The SS of system is less than 10mg/L.After pretreatment, the ammonia nitrogen concentration of water is 5000mg/L.
(2) film aerating system: pretreated high ammonia-nitrogen wastewater is passed through the film aeration tank that seal is good,
Film aerating system uses hydrophobic hollow fiber film.Concentration through film aerating system ammonia nitrogen will be
2000mg/L。
(3) membrane absorption system: the high ammonia-nitrogen wastewater after being processed by film aerating system pumps into dredging of film absorptive unit
Inside the film silk of moisture film, the sulfuric acid with 10% pumps into the shell side of hydrophobic membrane assembly as absorbing liquid,
Absorbing liquid uses endless form to run, and high NH4 source water side uses hydrophobic membrane assembly thtee-stage shiplock three
Level continuous treatment in parallel, the ammonia nitrogen concentration after process is 40mg/L, in membrane absorption system
The stable clearance received is 98%, and this technique total removal rate is 99.2%, in order to ensure industry even
The disposal ability that continuousization is run, absorbing liquid uses two to absorb flow container, switchover operation.
This device has two absorbing liquid storage tanks, the absorption in one of them absorbing liquid storage tank a (6)
When ammonium sulfate in liquid reaches the concentration of 30%, it is switched to another absorbing liquid storage tank b (6)
In absorbing liquid pump in membrane module (6), the ammonia now aerator (2) stripping gone out
It is passed through in absorbing liquid storage tank a (6), in order to neutralize the acid of 10% excess in absorbing liquid case,
And make the concentration of ammonium sulfate in absorbing liquid reach 40%, when the acid in absorbing liquid storage tank is the most excessive
Time, aerator (2) stripping is gone out ammonia and is passed through in absorbing liquid storage tank b (6), will absorb
Absorbing liquid in liquid storage tank a (6) pumps into byproduct recovery system, absorbing liquid storage tank a (6)
After emptying, more again preparing 300L according to certain ratio, the sulfuric acid absorption liquid of 10% is standby,
During until the byproduct concentration in absorbing liquid storage tank b (6) reaches 30% again, switch to absorb
Absorbing liquid in liquid storage tank a (6) pumps into membrane module.
(4) clean and air purge system: when film runnability weaken to former disposal ability less than 70% time, should
The water quality cleaning frequency is about 6 months, starts and cleans and air purge system.Membrane cleaning is to regard to pollute feelings
Take suitable chemical depending on condition, need to use clear water to wash away after Chemical cleaning and remain in
Chemical agent in membranous system, finally opens air pump and system is carried out air purge drying.
(5) byproduct recovery system: return pumping into byproduct through the absorbing liquid processed in step (3)
Receipts system, concentrates byproduct, the technique such as crystallization, carries out reclaiming and resource recycles.
Eventually through the technique of zero discharge realizing high ammonia-nitrogen wastewater resource using film aeration and film absorbing coupling technique.
Claims (5)
1. the device of the zero discharge treatment realizing high ammonia-nitrogen wastewater resource, it is characterized in that, pretreatment system is connected with waste water storage tank, film aerator is placed in waste water storage tank, film aerator uses hydrophobic hollow fiber membranous system, and film aerator is connected with blower fan, the upper end of waste water storage tank respectively with absorbing liquid storage tank a and being connected, the lower end water outlet of waste water storage tank is connected with the tube side import of film absorptive unit, and blower fan is also connected with the tube side import of film absorptive unit simultaneously；Product water after film absorptive unit absorbs gets rid of film absorptive unit；The shell side of film absorptive unit forms two closed circuits with absorbing liquid storage tank a and absorbing liquid storage tank b respectively；The lower end of absorbing liquid storage tank a and absorbing liquid storage tank b is connected with byproduct recovery system；Absorbing liquid storage tank a and absorbing liquid storage tank b is connected with concentrated acid fluid reservoir respectively；
Above-mentioned hydrophobic hollow fiber membranous system structure used is as follows: mainly include film frame, crossbeam, terminal conduit, curtain type film assembly, gas distribution pipe, air inlet pipe；Film frame at least includes the vertical beam of four parallel upright, the two ends of terminal conduit are separately fixed at two adjacent vertical beam A and the top of vertical beam B, multiple crossbeam is also fixed between vertical beam A and vertical beam B, also fixing multiple crossbeam between other two adjacent vertical beam C and vertical beam D, the crossbeam position between crossbeam and vertical beam C and vertical beam D between vertical beam A and vertical beam B interlocks；Being fixed with gas distribution pipe between the bottom of vertical beam A and vertical beam B or between the bottom of vertical beam C and vertical beam D, gas distribution pipe connects with air inlet pipe；Curtain type film assembly is the curtain structure of multiple hydrophobic hollow fiber spaced and parallel composition of film silk, and the surface of hydrophobic hollow fiber film silk is provided with microcellular structure；One end of curtain type film assembly is fixed in terminal conduit, and the other end is fixed on gas distribution pipe, and hydrophobic hollow fiber film silk connects with gas distribution pipe；Detour between the crossbeam between curtain type film assembly crossbeam and vertical beam C and vertical beam D between vertical beam A and vertical beam B successively, form the warp architecture of space folding formula.
2. according to the device described in claim 1, it is characterised in that film absorptive unit uses plural serial stage or/and the form of parallel connection.
3., according to the device described in claim 1, it is characterised in that film frame is cuboid frame structure, the distance between vertical beam A and vertical beam B is for long, and a length of height of vertical beam A, the direction being perpendicular to length and height is width；Long: wide: the ratio of height is 1:(0.6～1): (1.2～1.8), all there has been the tripod of fixation the bottom of 4 sides of cuboid.
4., according to the device described in claim 1, it is characterised in that the hydrophobic hollow fiber film silk spacing of adjacent two is 4-5mm, terminal conduit is parallel with crossbeam topmost to be fixed together；Gas distribution pipe is parallel with the crossbeam of lowermost end to be fixed together.
5. according to the device described in claim 1, it is characterised in that be respectively mounted online acidometer, online ammonia nitrogen instrument, paddle in absorbing liquid storage tank a and absorbing liquid storage tank b；Online acidometer and the addition of concentrated acid fluid reservoir chain control concentrated acid, maintain the acid concentration of absorbing liquid；Online ammonia nitrogen instrument is the concentration of byproduct in monitoring absorbing liquid in real time；Homogeneous media in the continuously stirred absorbing liquid for keeping lasting acid adding of paddle.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105600995A (en) * | 2016-03-09 | 2016-05-25 | 北京新源国能科技集团股份有限公司 | High-ammonia-nitrogen wastewater reutilization zero-discharge treatment method and device of membrane aeration and membrane absorption coupling technology |
| CN108033597A (en) * | 2017-12-15 | 2018-05-15 | 上海电气集团股份有限公司 | A kind of technique using membrane technology processing ammonia nitrogen waste water |
| CN114506904A (en) * | 2022-02-28 | 2022-05-17 | 合肥凯华环保科技有限公司 | High ammonia nitrogen waste water embrane method deamination nitrogen and ammonium sulfate recovery integrated system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600995A (en) * | 2016-03-09 | 2016-05-25 | 北京新源国能科技集团股份有限公司 | High-ammonia-nitrogen wastewater reutilization zero-discharge treatment method and device of membrane aeration and membrane absorption coupling technology |
| CN105600995B (en) * | 2016-03-09 | 2018-07-24 | 北京新源国能科技集团股份有限公司 | A kind of high ammonia-nitrogen wastewater recycling and zero discharge processing method and processing device of film aeration and film absorbing coupling technique |
| CN108033597A (en) * | 2017-12-15 | 2018-05-15 | 上海电气集团股份有限公司 | A kind of technique using membrane technology processing ammonia nitrogen waste water |
| CN114506904A (en) * | 2022-02-28 | 2022-05-17 | 合肥凯华环保科技有限公司 | High ammonia nitrogen waste water embrane method deamination nitrogen and ammonium sulfate recovery integrated system |
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