CN107055765A - The MBR processing of heavy metal compound wastewater and heavy metal recovery System and method for - Google Patents
The MBR processing of heavy metal compound wastewater and heavy metal recovery System and method for Download PDFInfo
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- CN107055765A CN107055765A CN201710372820.7A CN201710372820A CN107055765A CN 107055765 A CN107055765 A CN 107055765A CN 201710372820 A CN201710372820 A CN 201710372820A CN 107055765 A CN107055765 A CN 107055765A
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 96
- 239000002351 wastewater Substances 0.000 title claims abstract description 53
- 238000011084 recovery Methods 0.000 title claims abstract description 40
- 238000012545 processing Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 26
- 150000002736 metal compounds Chemical class 0.000 title claims description 6
- 239000011347 resin Substances 0.000 claims abstract description 83
- 229920005989 resin Polymers 0.000 claims abstract description 83
- 238000001179 sorption measurement Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 238000007885 magnetic separation Methods 0.000 claims abstract description 30
- 230000008929 regeneration Effects 0.000 claims abstract description 25
- 238000011069 regeneration method Methods 0.000 claims abstract description 25
- 150000001875 compounds Chemical class 0.000 claims abstract description 18
- 238000007654 immersion Methods 0.000 claims abstract description 14
- 238000005276 aerator Methods 0.000 claims abstract description 11
- 244000005700 microbiome Species 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 14
- 238000005273 aeration Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000002028 Biomass Substances 0.000 claims description 6
- 230000000813 microbial effect Effects 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 description 11
- 230000008569 process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 239000003957 anion exchange resin Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Activated Sludge Processes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses the MBR of heavy metal species compound wastewater processing and heavy metal recovery system, it is characterised in that the water inlet pipe being connected including Contact-sorption pond and with the water inlet in the Contact-sorption pond, and the water inlet pipe connection adds pipe；Immersion type membrane component and aerator are provided with the Contact-sorption pond, the immersion type membrane component is connected with the suction pump supporting with it, and the aerator is connected with air compressor；The mud discharging mouth that the Contact-sorption bottom of pond portion is set connects magnetic separation separate tank by discharge pipeline；The magnetic separation separate tank connects Contact-sorption pond by spoil disposal water return duct；The magnetic separation separate tank is connected with resin regeneration pond, and the resin regeneration pond connects heavy metal recovery pipe.The present invention can realize complete recovery and the degraded partial organic substances of resin, and can strengthen the effect of microorganism in the rate of adsorption of resin heavy metal ion, reinforced film biological reactor while fouling membrane is controlled, and accelerate the removal of organic matter.
Description
Technical field
The present invention relates to the MBR of heavy metal species compound wastewater processing and heavy metal recovery System and method for.
Background technology
Contain heavy metal and organic matter in the waste water of the industries such as machine-building, chemical industry, plating, electronics, as compound wastewater,
Difficulty is brought to processing.The big multipair microorganism of waste water containing heavy metal has toxicity, therefore is difficult to be fixed or utilized by microorganism.
But being emitted into the heavy metal of water body can but accumulate in fish and some aquatile bodies and in crops, be enriched with, and enter food
After thing chain harm may be produced to the mankind.The conventional physical chemical method processing used the processing of current heavy metal wastewater thereby, bag more
Include physical absorption, chemical precipitation, ion exchange, electricity decomposition and UF membrane etc..But there is treatment effect and pay no attention in these techniques
Think, the waste water that cost is high, can not tackle various heavy coexists, the heavy metal recovery after chemical precipitation using it is difficult the problems such as.
The particularly relatively low waste water of heavy metal content, above-mentioned technique can not effectively realize the separation and recovery of heavy metal.Moreover, depositing
In the industry of heavy metal pollution such as the waste water of fine chemistry industry, contain large amount of organic, once and have simultaneously in waste water
Machine thing and heavy metal formation compound wastewater, its intractability are bigger.Therefore, how to be realized while high efficiente callback heavy metal multiple
The processing for closing waste water is the subject matter currently faced.
Found by the investigation to existing patent, go the patent of removing heavy metals to have on adsorbent absorption and membrane process：1)
The apparatus and method (publication number CN1554596A) of heavy metal-polluted water process and heavy metal recovery, mainly by adjusting in reactor
PH value of solution make heavy metal formation solid granulates, the solid heavy metals compound of formation periodically discharged by floss hole, reclaims sharp
With.The problem of the method, is only applicable to a small number of heavy metals to adjust pH method, and hands over difficult return to the metal ion of low concentration
Heavy metal after head, precipitation realizes that recycling is more difficult；2) processing method (publication number CN103265151A) of heavy metal wastewater thereby,
The problem of by heavy metal wastewater thereby by entering membrane bioreactor, the method after A3O Biochemistry Reaction Systems, is to fail to realize weight
The recycling of metal；3) method (publication number of the preparation of composite magnetic adsorption material and removal heavy metal ions in wastewater
CN103623782A), this method is added magnetic adsorptive material to containing heavy metal ion by preparing magnetic adsorptive material
In waste water after adsorbing metal ions, the magnetic material that magnetic separation separation is adsorbed with heavy metal ion is carried out with magnetic separator, a huge sum of money is reclaimed
Category, but the method is not the problem of consider organic matter removal in heavy metal wastewater thereby.4) depth of continous way heavy metal ion-containing tail water
Processing system and processing method (Authorization Notice No. CN 101863530B), this invention is by weak-type cationic ion-exchange resin and magnetic
Property anion exchange resin the tail water of heavy metal ion, but step needed for method are handled in same hybrid reaction in-tank mixing
Many, by nanofiltration system condensed heavy metal cleaning fluid, energy consumption is higher, and the problem of do not consider organic matter in heavy metal wastewater thereby.
Integrated comparative is visible, although existing technology can realize the recovery of heavy metal in heavy metal wastewater thereby, not
Consider the processing of organic matter in compound heavy metal wastewater thereby.And compound being widely present in of heavy metal wastewater thereby containing organic matter
How multiple industries such as work, therefore, be treated as on the premise of heavy metal recovery is realized to compound heavy metal wastewater thereby
Current urgent problem to be solved.
The content of the invention
The technical problem to be solved in the present invention is to overcome the defect of prior art there is provided a heavy metal species compound wastewater
MBR processing and heavy metal recovery System and method for, can realize complete recovery and the degraded partial organic substances of resin, and can
Strengthen the work of microorganism in the rate of adsorption of resin heavy metal ion, reinforced film biological reactor while fouling membrane is controlled
With the removal of quickening organic matter.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
One aspect of the present invention discloses MBR processing and the heavy metal recovery system of a heavy metal species compound wastewater, and it includes connecing
Adsorption tank and the water inlet pipe being connected with the water inlet in the Contact-sorption pond are touched, the water inlet pipe connection adds pipe；The contact
Immersion type membrane component and aerator are provided with adsorption tank, the immersion type membrane component is connected with the suction pump supporting with it,
The aerator is connected with air compressor；The mud discharging mouth that the Contact-sorption bottom of pond portion is set connects magnetic separation by discharge pipeline
Separate tank；The magnetic separation separate tank connects Contact-sorption pond by spoil disposal water return duct；The magnetic separation separate tank is connected with resin
Regenerated reactor, the resin regeneration pond connects heavy metal recovery pipe.
Wherein described membrane reactor needs the microculture by certain time before commencement of commercial operation, and incubation time regards ring
Depending on border temperature and condition of water quality；Compound wastewater, which adds to enter after magnetic resin, carries out air or pure in adsorption tank, adsorption tank
Oxygen is aerated, and under aeration effect, the heavy metal ion in waste water is fully contacted and by resin adsorption with magnetic resin；In adsorption tank
Organic matter in suspension microorganism flco with high concentration, waste water is adsorbed and degraded by microorganism flco；Make in the filtering of film
Under, the granulating material in adsorption tank is all trapped including magnetic resin, microorganism and inorganic particulate matter；In the tree of fluidisation state
The reversible membrane fouling on the also controllable film surface of fat particle, extends the backwashing period of film；The magnetic resin of Adsorption of Heavy Metals and residue
Sludge is discharged into magnetic separation separate tank simultaneously, and the separation of magnetic resin and activated sludge is realized herein, and the resin after separation enters tree
Fat regenerated reactor realizes resin regeneration and heavy metal recovery, and the resin and some residual sludge after regeneration are then back to adsorption tank, both
Recycling for resin is realized, the microbial biomass in adsorption tank is maintained again, organic matter degradation is realized.
Further, the resin regeneration pond connects water inlet pipe by resin return duct.
Further, the immersion type membrane component is ceramic membrane.
Further, the depth of water in the magnetic separation separate tank is 0.4~0.8m, and the flow velocity of spoil disposal water is 0.05~0.3m/
s。
The method that another aspect of the present invention discloses the MBR processing and heavy metal recovery of a heavy metal species compound wastewater,
It comprises the following steps：
S1, the waste water containing heavy metal enter Contact-sorption pond by water inlet pipe, and magnetic resin on water inlet pipe by connecting
Pipe is added to be added in waste water；
S2, the waste water for adding resin enters Contact-sorption pond, is that Contact-sorption pond is aerated using air compressor, gas is logical
The aerator installed in adsorption tank bottom is crossed uniformly to add into waste water；
S3, Contact-sorption place immersion type membrane component in pond, by producing negative pressure with the supporting suction pump of membrane module, will inhale
Water in attached pond is extracted out, and the particulate matter such as magnetic resin, microorganism and activated sludge is then trapped within adsorption tank；
S4, the magnetic resin of adsorption tank sludge collecting region and sludge enter magnetic separation separate tank by discharge pipeline, realize herein
Magnetic resin and the separation of other particulate matters such as bacterium and activated sludge etc.；
Spoil disposal water after S5, separation is recycled back to Contact-sorption pond by spoil disposal water return duct, not only improves maintenance contact and inhales
Microbial biomass in attached pond, can be reprocessed to spoil disposal water again；
The resin that S6, magnetic separation separate tank are isolated enters resin regeneration pond, carries out resin regeneration and heavy metal recovery, a huge sum of money
Belong to recovered liquid and recovery discharged by recovery tube, the resin after regeneration reenters water inlet pipe through over cleaning by resin return duct,
Realize the complete recovery and recycling of resin.
Preferably, in step S1, described magnetic resin has selective absorption effect to different heavy metal ion, inhales
The attached time is 0.3~0.6h, and the magnetic intensity of resin can be adjusted according to technological requirement, and the heavy metal adsorbed can be by regenerating work
Skill is desorbed.Magnetic resin has selective absorption effect to different heavy metal ion, and the magnetic intensity of resin is adjustable, institute
The heavy metal of absorption can be desorbed by regeneration technology.
Preferably, the spoil disposal water into magnetic separation separate tank is 0.4~0.8m, maintains flow velocity to be 0.05 by circulating pump
~0.3m/s.
Preferably, the film used for ceramic membrane, aperture in 50~200nm scopes, filtration flux can reach 40~
80L/m2h。
The beneficial effect that is reached of the present invention is：
The present invention can be handled compound heavy metal wastewater thereby while heavy metal is reclaimed.The present invention passes through spy
Heavy metal in the magnetic resin absorption waste water of different absorption property, utilizes magnetic resin of the membrane bioreactor to Adsorption of Heavy Metals
Reclaim completely, the microbial degradation organic matter in membrane bioreactor, realize the dual of heavy metal recovery and organic matter removal
Function.Using the magnetic field in magnetic separation separate tank and special fluidised form, magnetic resin and activated sludge are separated, high-purity is obtained
Resin, is conducive to resin regeneration and heavy metal recovery.The activated sludge of separation is then back to adsorption tank, remains micro- in adsorption tank
Biomass, is conducive to the removal of organic matter.
Had the following advantages that during using present invention processing micro-polluted raw or low-concentration organic waste water：1) UF membrane is used
Technology, can be achieved being kept completely separate and reclaiming for polymeric adsorbent.Aeration process in membrane bioreactor can accelerate heavy metal ion
With resin contacting efficiency, accelerate adsorption process.2) can be by resin and activated sludge and other miscellaneous in magnetic separation separate tank using magnetic field
Matter is separated, and is conducive to the regenerative process of resin, can be produced the heavy metal recovery liquid of high-purity.3) membrane bioreactor remains higher
Microbial biomass, organic matter can be decomposed.Aeration process can improve dissolved oxygen concentration, the effect of enhancement microbiological, simultaneously
The pollution of film can be slowed down.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in figure 1, the MBR processing of a heavy metal species compound wastewater and heavy metal recovery system, it includes Contact-sorption
Pond 1 and the water inlet pipe 11 being connected with the water inlet in the Contact-sorption pond 1, the connection of water inlet pipe 11 add pipe 13；It is described to connect
Touch in adsorption tank 1 and be provided with immersion type membrane component 2 and aerator 23, the immersion type membrane component 2 is connected with supporting with it
Suction pump 21, the aerator 23 is connected with air compressor 22；The mud discharging mouth that the bottom of Contact-sorption pond 1 is set passes through
The connection magnetic separation of discharge pipeline 12 separate tank 3；The magnetic separation separate tank 3 connects Contact-sorption pond 1 by spoil disposal water return duct 31；It is described
Magnetic separation separate tank 3 is connected with resin regeneration pond 32, the connection heavy metal recovery of resin regeneration pond 32 pipe 33.The resin regeneration
Pond 32 connects water inlet pipe 11 by resin return duct 34.
The immersion type membrane component is ceramic membrane, and aperture can reach 40~80L/ in 50~200nm scopes, filtration flux
m2h。
The depth of water in the magnetic separation separate tank is 0.4~0.8m, and the flow velocity of spoil disposal water is 0.05~0.3m/s.Magnetic separation is separated
Current in pond maintain certain flow rate, using activated sludge and magnetic resin good separation as criterion；Magnetic separation separate tank passes through
Magnetic field intensity regulation can be carried out, to adapt to the separation of magnetic resin and spoil disposal water under the conditions of different quality；Stream in separate tank
Body maintains certain flow rate, in turbulent condition, is easy to the separation of resin and activated sludge.
Aeration can use air or pure oxygen aeration, and aerator can be aeration board, aeration rod or aeration plate, and aeration quantity exists
0.5~1m3Between/h.
Resin regeneration pond, is made by corrosion-resistant material, provided with resin feeding mouthful, and resin return duct and concentrate are reclaimed
Pipe.
Contact-sorption bottom of pond portion is provided with resin and sludge settling collecting region, and resin and sludge are emitted into magnetic separation after concentrating herein
Separate tank；Contact-sorption pond is simultaneously as membrane bioreactor, and the hydraulic detention time of adsorption tank is 0.5~2.5h.
Operation principle：1) waste water containing heavy metal enters Contact-sorption pond 1 by water inlet pipe 11, and magnetic resin passes through water inlet
The pipe 13 that adds connected on pipe 11 is added in waste water；2) waste water for adding resin enters Contact-sorption pond 1, is compressed using air
Machine 22 is aerated for Contact-sorption pond, and gas is uniformly added into waste water by the aerator 23 installed in adsorption tank bottom.
The heavy metal ion being aerated in affector, water is fully contacted with resin sorbent, completes adsorption process.Placed in Contact-sorption pond
Immersion type membrane component 2, negative pressure is produced by the suction pump 21 supporting with membrane module, and the water in adsorption tank is extracted out, and magnetic tree
The particulate matters such as fat, microorganism and activated sludge are then trapped within adsorption tank；3) magnetic resin of adsorption tank sludge collecting region and
Sludge enters magnetic separation separate tank 3 by discharge pipeline 12, and magnetic resin and other particulate matters such as bacterium and activated sludge are realized herein
Deng separation, the spoil disposal water after separation is recycled back to Contact-sorption pond by spoil disposal water return duct 31, not only improves maintenance contact and inhales
Microbial biomass in attached pond, can be reprocessed to spoil disposal water again；4) resin that magnetic separation separate tank is isolated enters resin regeneration
Pond 32, carries out resin regeneration and heavy metal recovery, and heavy metal recovery liquid is discharged by recovery tube 33 and reclaimed, the resin warp after regeneration
Over cleaning, water inlet pipe 11 is reentered by resin return duct 34, realizes the complete recovery and recycling of resin.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (8)
1. the MBR processing of a heavy metal species compound wastewater and heavy metal recovery system, it is characterised in that including Contact-sorption pond and
The water inlet pipe being connected with the water inlet in the Contact-sorption pond, the water inlet pipe connection adds pipe；Set in the Contact-sorption pond
Immersion type membrane component and aerator are equipped with, the immersion type membrane component is connected with the suction pump supporting with it, the aeration dress
Put and be connected with air compressor；The mud discharging mouth that the Contact-sorption bottom of pond portion is set connects magnetic separation separate tank by discharge pipeline；Institute
State magnetic separation separate tank and Contact-sorption pond is connected by spoil disposal water return duct；The magnetic separation separate tank is connected with resin regeneration pond, institute
State resin regeneration pond connection heavy metal recovery pipe.
2. the MBR processing of heavy metal species compound wastewater according to claim 1 and heavy metal recovery system, its feature exist
In the resin regeneration pond connects water inlet pipe by resin return duct.
3. the MBR processing of heavy metal species compound wastewater according to claim 1 and heavy metal recovery system, its feature exist
In the immersion type membrane component is ceramic membrane.
4. the MBR processing of heavy metal species compound wastewater according to claim 1 and heavy metal recovery system, its feature exist
In the depth of water in the magnetic separation separate tank is 0.4~0.8m, and the flow velocity of spoil disposal water is 0.05~0.3m/s.
5. a kind of any system of usage right requirement 1~4 carries out MBR processing and the heavy metal recovery of heavy metal compound wastewater
Method, it is characterised in that comprise the following steps：
S1, the waste water containing heavy metal enter Contact-sorption pond by water inlet pipe, and magnetic resin passes through adding for being connected on water inlet pipe
Pipe is added in waste water；
S2, add resin waste water enter Contact-sorption pond, using air compressor be Contact-sorption pond be aerated, gas pass through pacifies
Aerator mounted in adsorption tank bottom is uniformly added into waste water；
S3, Contact-sorption place immersion type membrane component in pond, by producing negative pressure with the supporting suction pump of membrane module, by adsorption tank
In water extract out, and the particulate matter such as magnetic resin, microorganism and activated sludge is then trapped within adsorption tank；
S4, the magnetic resin of adsorption tank sludge collecting region and sludge enter magnetic separation separate tank by discharge pipeline, and magnetic is realized herein
Resin and the separation of other particulate matters such as bacterium and activated sludge etc.；
Spoil disposal water after S5, separation is recycled back to Contact-sorption pond by spoil disposal water return duct, not only improves maintenance Contact-sorption pond
Interior microbial biomass, can be reprocessed to spoil disposal water again；
The resin that S6, magnetic separation separate tank are isolated enters resin regeneration pond, carries out resin regeneration and heavy metal recovery, and heavy metal is returned
Receive liquid and recovery is discharged by recovery tube, the resin after regeneration reenters water inlet pipe through over cleaning by resin return duct, realize
The complete recovery and recycling of resin.
6. the MBR processing of heavy metal compound wastewater according to claim 5 and heavy metal collection method, it is characterised in that
In step S1, described magnetic resin has selective absorption effect to different heavy metal ion, and adsorption time is 0.3~
0.6h, the magnetic intensity of resin can be adjusted according to technological requirement, and the heavy metal adsorbed can be desorbed by regeneration technology.
7. the MBR processing of heavy metal compound wastewater according to claim 5 and heavy metal collection method, it is characterised in that
Spoil disposal water into magnetic separation separate tank is 0.4~0.8m, maintains flow velocity to be 0.05~0.3m/s by circulating pump.
8. the MBR processing of heavy metal compound wastewater according to claim 5 and heavy metal collection method, it is characterised in that
The film used is ceramic membrane, and aperture can reach 40~80L/m in 50~200nm scopes, filtration flux2h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372820.7A CN107055765A (en) | 2017-05-24 | 2017-05-24 | The MBR processing of heavy metal compound wastewater and heavy metal recovery System and method for |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372820.7A CN107055765A (en) | 2017-05-24 | 2017-05-24 | The MBR processing of heavy metal compound wastewater and heavy metal recovery System and method for |
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| CN107055765A true CN107055765A (en) | 2017-08-18 |
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ID=59611212
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|---|---|---|---|
| CN201710372820.7A Pending CN107055765A (en) | 2017-05-24 | 2017-05-24 | The MBR processing of heavy metal compound wastewater and heavy metal recovery System and method for |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792997A (en) * | 2017-11-27 | 2018-03-13 | 中国科学院上海高等研究院 | Delay the method for fouling membrane and magnetic film coupled reaction device in membrane bioreactor |
| CN108383289A (en) * | 2018-05-03 | 2018-08-10 | 长春工程学院 | Utilize the device and method of heavy metal in magnetic Nano material treated sewage |
| CN109160556A (en) * | 2018-10-10 | 2019-01-08 | 戴李祥 | A kind of filter device |
| CN109502873A (en) * | 2018-11-16 | 2019-03-22 | 西北矿冶研究院 | Device and method for treating heavy metal ions in wastewater |
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| CN107792997A (en) * | 2017-11-27 | 2018-03-13 | 中国科学院上海高等研究院 | Delay the method for fouling membrane and magnetic film coupled reaction device in membrane bioreactor |
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| WO2020015459A1 (en) * | 2018-07-17 | 2020-01-23 | 厦门理工学院 | Method for treating wastewater containing heavy metal |
| US11286186B2 (en) | 2018-07-17 | 2022-03-29 | Xiamen University Of Technology | Method for treating dye wastewater |
| US11352278B2 (en) | 2018-07-17 | 2022-06-07 | Xiamen University Of Technology | Method for treating domestic sewage |
| US11485656B2 (en) | 2018-07-17 | 2022-11-01 | Xiamen University Of Technology | Method for treating heavy metal wastewater |
| CN109160556A (en) * | 2018-10-10 | 2019-01-08 | 戴李祥 | A kind of filter device |
| CN109502873A (en) * | 2018-11-16 | 2019-03-22 | 西北矿冶研究院 | Device and method for treating heavy metal ions in wastewater |
| CN110627317A (en) * | 2019-09-18 | 2019-12-31 | 张如意 | Heavy metal processing wastewater treatment process |
| CN110627317B (en) * | 2019-09-18 | 2022-07-12 | 深圳市睿维盛环保科技有限公司 | Heavy metal processing wastewater treatment process |
| CN114772879A (en) * | 2022-04-11 | 2022-07-22 | 同济大学 | Device and method for conditioning sludge by using ion exchange resin |
| CN114772879B (en) * | 2022-04-11 | 2024-04-23 | 同济大学 | Device and method for conditioning sludge by utilizing ion exchange resin |
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