CN206051730U - A kind of system using various membrane technology recycling treatment kelp processing waste water - Google Patents
A kind of system using various membrane technology recycling treatment kelp processing waste water Download PDFInfo
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- CN206051730U CN206051730U CN201620978243.7U CN201620978243U CN206051730U CN 206051730 U CN206051730 U CN 206051730U CN 201620978243 U CN201620978243 U CN 201620978243U CN 206051730 U CN206051730 U CN 206051730U
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- 239000012528 membrane Substances 0.000 title claims abstract description 63
- 239000002351 wastewater Substances 0.000 title claims abstract description 31
- 241000512259 Ascophyllum nodosum Species 0.000 title claims abstract description 26
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 238000004064 recycling Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000001764 infiltration Methods 0.000 claims abstract description 18
- 239000012466 permeate Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 9
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 9
- 238000002791 soaking Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000000047 product Substances 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 19
- 239000002253 acid Substances 0.000 claims description 9
- 239000011780 sodium chloride Substances 0.000 claims description 9
- 238000005342 ion exchange Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000010612 desalination reaction Methods 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- 239000003011 anion exchange membrane Substances 0.000 claims description 5
- 150000001768 cations Chemical class 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 230000003472 neutralizing Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000000750 progressive Effects 0.000 claims description 3
- 239000002965 rope Substances 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 3
- FBPFZTCFMRRESA-KVTDHHQDSA-N Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 abstract description 16
- FBPFZTCFMRRESA-KAZBKCHUSA-N D-Mannitol Natural products OC[C@@H](O)[C@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KAZBKCHUSA-N 0.000 abstract description 15
- 235000010355 mannitol Nutrition 0.000 abstract description 15
- 239000000594 mannitol Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000011033 desalting Methods 0.000 abstract description 3
- 239000003337 fertilizer Substances 0.000 abstract description 2
- -1 feedstuff Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- 238000000926 separation method Methods 0.000 description 8
- 238000005341 cation exchange Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000909 electrodialysis Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005349 anion exchange Methods 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000001471 micro-filtration Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241001466453 Laminaria Species 0.000 description 2
- 210000000214 Mouth Anatomy 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxyl anion Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 230000003020 moisturizing Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 206010048962 Brain oedema Diseases 0.000 description 1
- 229940068682 Chewable Tablet Drugs 0.000 description 1
- 230000036826 Excretion Effects 0.000 description 1
- 208000010412 Glaucoma Diseases 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 229940029329 Intrinsic factor Drugs 0.000 description 1
- 210000003734 Kidney Anatomy 0.000 description 1
- 241000199919 Phaeophyceae Species 0.000 description 1
- 231100000614 Poison Toxicity 0.000 description 1
- 206010038436 Renal failure acute Diseases 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 241000195474 Sargassum Species 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N TiO Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 229910001884 aluminium oxide Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000844 anti-bacterial Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007910 chewable tablet Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000819 hypertonic solution Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 101710031899 moon Proteins 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 235000019991 rice wine Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 210000000433 stratum disjunctum Anatomy 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910001929 titanium oxide Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
This utility model provides a kind of system using various membrane technology recycling treatment kelp processing waste water, it includes neutralization reaction pond, ceramic membranous system, one-level electric drive membranous system, counter-infiltration system, the light indoor product water of the one-level electric drive membranous system enters counter-infiltration system, used as recycle-water, the recycle-water will be used for kelp soaking and realize reclaiming the permeate of the counter-infiltration system.This utility model carries out two stage desalting to Mannitol feed liquid by electric drive film so that the purity of product is greatly improved；Concentration decrement can be carried out to Mannitol feed liquid by reverse osmosis membrane system so that two grades of electric drive membrane efficiencies are lifted, and are reduced system scale, are realized Water circulation purpose again；Recycling treatment is carried out to kelp soaking waste water, is recycled Mannitol, slag carries out comprehensive utilization and produces chemical fertilizer, feedstuff, water obtains reuse, realizes substantially clean manufacturing, eliminates pollution, while the labor intensity of production environment and workman is also improved.
Description
Technical field
This utility model belongs to kelp processing field, more particularly to using what membrane technology processed kelp processing waste water is
System or equipment.
Background technology
Kelp processing enterprise is the very big enterprise of a class water consumption, often produces 1t Algins and need to consume nearly hundred tons of tap water, together
When be the very big enterprise of a class wastewater discharge again.Kelp soaking water after China has many units to carry iodine is used as Industry Waste
Water is directly discharged, so not only serious pollution of ecological environment, and makes the medicinal raw material-manna of contained preciousness in the waste water
Alcohol cannot obtain recycling, and according to statistics, there is family more than 50 in whole nation Sargassum processing enterprise at present, and annual emissions reach tons up to a million,
Cause the waste of water and Mannitol resource.Recycling treatment is carried out to this kind of waste water, the traditional method of Mannitol is therefrom extracted
It is centrifugation washing recrystallization method, had not only consumed energy high but also expended a large amount of artificial, and production cost is high, yield is low.In kelp soaking water
Mannitol content 1t Mannitol be obtained only 1.0% or so, often about need to consume steam 60t.Because of the high business economic effect of production cost
Benefit is low, or even will also lose.Therefore, reform backward traditional processing technology imperative.
Mannitol is a kind of hexanhexol, because absorbing heat during dissolving, pleasantly sweet, has comfort sense to oral cavity, therefore is more widely used in awake
The manufacture of the chewable tablet such as freshener in yeast for brewing rice wine, mouth, its granular pattern are specially used as the excipient of direct compression.Mannitol is a kind of hypertonicity
Tissue dewatering agent, be clinically widely used in treating cerebral edema, prevent acute renal failure, treat glaucoma, accelerate poisonous substance and medicine
Excretion of the thing from kidney.
Membrane technology is just gradually widely applied in industrial every field in recent years, and membrane separation technique is using tool
Have and certain select the classification of material, separation, concentration, purification etc. are carried out through the filter medium of characteristic.After the sixties in 20th century,
Various membrane separation techniques are developed rapidly, occupy increasingly consequence in various isolation technics.Film has in separation process
Following function：The identification of material and transmission；Interface；Reacting field.The identification of material and through being to make in mixture between each component
Realize detached intrinsic factor；As interface, film will transmit through liquid and retain liquid be divided into it is mutually unmixed biphase；As reacting field film
Surface and internal surface of hole contain the functional group for having interaction ability with specific solute, by physical action, chemical reaction or
Biochemical reaction improves the selectivity and separating rate of membrance separation.Membrane separating process has under room temperature to be carried out, without phase change, energy consumption
Low, equipment is simple, convenient operation and control the features such as, oneself is applied to the neck such as chemical industry, medicine, light industry, food, weaving, electronics, metallurgy
Domain.According to the difference of retention component, membrane process can be divided into microfiltration (Microfiltration, MF), ultrafiltration
(Ultrafiltration, UF), reverse osmosiss (Reverse osmosis, RO), dialysis (Dialysis, DS), electrodialysis
(Electrodialysis, ED) and seepage slope (Pervaporation, PV) etc..
Ceramic membrane is with loose structure with 1600 DEG C of high temperature sinterings of the Jing such as aluminium oxide, titanium oxide, zirconium oxide
High technology ceramics filtering material.It is by the ceramic monolith of porosity 30% ~ 50%, aperture 50nm ~ 15 μm, using sol-gel process
Or the asymmetric compound film that other techniques are made.Its structure is usually " sandwich " formula：Supporting layer（Also known as carrier layer）、
Transition zone（Also known as intermediate layer）, film layer（Also known as function stratum disjunctum）.Wherein the aperture of supporting layer is generally 1 ~ 20 μm, and porosity is
30% ~ 65%, its effect is to increase the mechanical strength of film；The aperture of the aperture ratio supporting layer in intermediate layer is little, and its effect is to prevent film
Infiltration of the granule to porous support layer in layer preparation process, about 20 ~ 60 μm of thickness, porosity are 30% ~ 40%；Film layer has divides
From function, from 0.8nm ~ 1 μm, about 3 ~ 10 μm of thickness, porosity are 40% ~ 55% in aperture.The pore-size distribution of whole film by
Supporting layer is gradually reduced to film layer, forms asymmetric structure distribution.Ceramic membrane can be divided into microfiltration according to aperture（Aperture is more than
50nm）, ultrafiltration（2 ~ 50nm of aperture）, nanofiltration（Aperture is less than 2nm）Etc. species.Ceramic membrane filter is a kind of " cross flow filter " shape
The fluid separation process of formula：Material liquid flow at high speed in the membrane tube, the clarified permeation liquid containing small molecule component under pressure-driven
Edge and face vertical direction（Radially）Film is passed through outwards, the muddy concentrated solution containing macromolecular components is rejected by, so that fluid
Reach the purpose of separation, concentration, purification.
The retention characteristic of ultrafilter membrane is the usual molecular cut off scope characterizing with to the molecular cut off of standard Organic substance
In 1000-300000Da, therefore ultrafilter membrane can be to larger molecular organicses（Such as protein, antibacterial）, colloid, suspended solid etc. carry out point
From being widely used in the clarification of feed liquid, the isolating and purifying of larger molecular organicses, except thermal source.The retention characteristic of NF membrane is with right
Characterizing, corresponding molecular cut off scope is in 150-1000Da, therefore NF membrane can be to little point for the rejection of the standard solution such as MgSO4
Sub- Organic substance etc. is separated with water, inorganic salt, is made desalination and is carried out while concentration.
Electric drive membrane technology refers to membrane separating process of the ion by selective ion exchange membrane under electric field force effect, its
Core is anion and cation exchange membrane, i.e., only allow cation to pass through using cation exchange membrane, and anion exchange membrane is only permitted
Perhaps the characteristic that anion passes through carries out the technology of Selective Separation to effects of ion.Under electric field force effect, the moon in solution
There is directional migration in cation, move to another part water body from a part of water body, so as to reaching solution separating, purification and concentrating
Purpose.The appearance of Bipolar Membrane, makes electrodialytic purposes be expanded.Bipolar Membrane is by anion exchange membrane and cation exchange
What film was composited, intermediate catalyst layer is commonly referred in the middle of two-layer.Its principle is：It is when Bipolar Membrane both sides add voltage, molten
Ion in liquid can occur directional migration, and at the same time hydrone can enter into intermediate catalyst layer through anion and cation exchange membrane,
There is electrolytically generated hydrion and hydroxide ion under the effect of both sides active group, serve as charge carrier with this, consumption
Water permeates to film intermediate layer further through the water in surrounding medium and is supplemented.Compared with conventional electrodialysis, act in Bipolar Membrane
Lower water decomposition speed is enhanced more than 5 thousands of times, therefore energy consumption is substantially reduced, and electrodialytic range of application also extends significantly.It is double
Pole EDBM falls within electrodialysis range of application, be by Bipolar Membrane is combined with ion exchange membrane, constitute it is different every
Room（Sour room, alkali room and feed liquid room）So as to there is the advantage of uniqueness in soda acid preparation field.Under certain voltage effect, negative and positive
Ion can pass through anion and cation exchange membrane respectively, and the hydrion produced with Bipolar Membrane and hydroxide ion combine the corresponding acid of generation
And alkali.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of using various membrane technology recycling treatments sea
System with processing waste water, it can realize laminaria production waste water can be turned waste into wealth, be recycled Mannitol, floor space is little
Effect, for this purpose, this utility model is employed the following technical solutions：
It includes：
Neutralization reaction pond, to the pH value for adjusting waste water, produces water and enters concentration basin, and the concentration basin is provided with big flow circulation
Pump；
Ceramic membranous system, the big flow circulating pump will produce water and be delivered to ceramic membranous system, and the ceramic membranous system is in pressure
The feed liquid of big flow delivery pump conveying is carried out doing filtration under power effect；
One-level electric drive membranous system, the permeate of the ceramic membranous system enter one-level electric drive membranous system, electric drive film
System forms dense room and light room by ion exchange, and salinity is constantly migrated to dense room, and low salt feed liquid enters light room；
Counter-infiltration system, the light indoor product water of the one-level electric drive membranous system enter counter-infiltration system, the reverse osmosis
Used as recycle-water, the recycle-water will be used for kelp soaking and realize reclaiming the permeate of permeable system.
On the basis of using above technical scheme, this utility model can also be using scheme further below：
The system also includes：
Two grades of electric drive membranous systems, the concentrated solution of the counter-infiltration system carries out concentrating into two grades of electric drive membranous systems,
Filter, the dense room concentrated solution of two grades of electric drive membranous systems is carried out again concentrating, filtered into one-level electric drive membranous system.
Light room feed liquid after the desalination of two grades of electric drive membranous systems enters ion exchange bed, and the remaining salinity of absorption is produced
Raw feed liquid is being evaporated, centrifuge dehydration, realize reuse after drying.
The concentrated solution of the ceramic membranous system is back to concentration basin, and Thallus Laminariae (Thallus Eckloniae) disintegrating slag is constantly discharged in concentration basin bottom, the disintegrating slag
Realize that comprehensive utilization is processed.
Further, the system also includes：
Bipolar membranous system, the dense room saline of the one-level electric drive membranous system enter bipolar membranous system, and in bipolar membrane system
Electrolysis process is carried out in system, the Chemical cleaning for neutralizing workshop section and a whole set of membranous system being used for after producing soda acid before progressive die.
The pore size filter of the ceramic membranous system is 50 ~ 75nm；
Crossflow velocity is 3 ~ 4m/s；
Membrane flux is 250 ~ 300LMH.
The anion exchange membrane and cation of the one-level electric drive membranous system and two grades of electric drive membranous system rope finances is handed over
Film is changed for heterogeneous membrane or homogeneous membrane；
One-level electric drive membranous system operation electric current density be 5 ~ 10mA/cm2, two grades of electric drive membranous system operation electric current density
For 2.5 ~ 5.0mA/cm2；
The current efficiency control of one-level electric drive membranous system is controlled in the current efficiency of 50 ~ 65%, two grades of electric drive membranous systems
30 ~ 50%.
In 4.0 ~ 5.0MPa, the average flux of reverse osmosis membrane system is 13 for the operating pressure control of the counter-infiltration system
~15LMH。
The operation electric current density domination of the bipolar membranous system in 20 ~ 25mA/cm2, bipolar membranous system sour room acid strength
8 ~ 10%, bipolar membranous system alkali room concentration of lye is controlled 13 ~ 15% for control.
The neutralization reaction pond hydraulic detention time is 20 ~ 30min, and concentration basin hydraulic detention time is 20 ~ 30min.
This utility model has the advantage that as follows：
1）Ceramic membranous system carries out clarification filtration to waste water, and floor space is reduced, and the yield of filter progress is improved, concentration basin
Suspended sediment concentration is improved, and sedimentation effect is notable；
2）Two stage desalting is carried out to Mannitol feed liquid by electric drive film so that the purity of product is greatly improved, and price is carried
Height, remarkable in economical benefits；
3）Concentration decrement can be carried out to Mannitol feed liquid by reverse osmosis membrane system so that two grades of electric drive membrane efficiencies are carried
Rise, reduce system scale, realize Water circulation purpose again；
4）Strong brine recycling can be improve the safety and reliability of technique by the use of bipolar membranous system；
5）Application of membrane in laminaria production waste water reclaiming process be truly realized required by industrialized production it is low into
Sheet and high stability, while also improving product quality and reducing cost；
6）Recycling treatment is carried out to kelp soaking waste water, is turned waste into wealth, be recycled Mannitol, slag carries out comprehensive profit
With chemical fertilizer, feedstuff is produced, water obtains reuse, realizes substantially clean manufacturing, eliminates pollution, while production environment and workman
Labor intensity is also improved.
Description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Specific embodiment
Refer to the attached drawing.
This utility model belongs to kelp processing field, is related to a kind of using various membrane technologies process Thallus Laminariae (Thallus Eckloniae) extraction Brown algae
The advanced technologies of glue and iodine element production waste water, it is particularly a kind of that waste water pre-filtering process, two-stage electric drive are used for by ceramic membrane
Film carries out desalting processing, first-stage reverse osmosis system concentration feed liquid and reuse water resource, bipolar membranous system process strong brine and ion
Exchange production equipment or system that bed further removes salinity in Mannitol.
A kind of embodiment, this utility model include neutralization reaction pond, to the pH value for adjusting waste water, produce water and enter concentration
Pond, the concentration basin are provided with big flow circulating pump；
Ceramic membranous system, the big flow circulating pump will produce water and be delivered to ceramic membranous system, and the ceramic membranous system is in pressure
The feed liquid of big flow delivery pump conveying is carried out doing filtration under power effect；
One-level electric drive membranous system, the permeate of the ceramic membranous system enter one-level electric drive membranous system, electric drive film
System forms dense room and light room by ion exchange, and salinity is constantly migrated to dense room, and low salt feed liquid enters light room；
Counter-infiltration system, the light indoor product water of the one-level electric drive membranous system enter counter-infiltration system, the reverse osmosis
Used as recycle-water, the recycle-water will be used for kelp soaking and realize reclaiming the permeate of permeable system.
In addition, the system also includes：
Two grades of electric drive membranous systems, the concentrated solution of the counter-infiltration system carries out concentrating into two grades of electric drive membranous systems,
Filter, the dense room concentrated solution of two grades of electric drive membranous systems is carried out again concentrating, filtered into one-level electric drive membranous system.
Light room feed liquid after the desalination of two grades of electric drive membranous systems enters ion exchange bed, and the remaining salinity of absorption is produced
Raw feed liquid is being evaporated, centrifuge dehydration, realize reuse after drying.
The concentrated solution of the ceramic membranous system is back to concentration basin, and Thallus Laminariae (Thallus Eckloniae) disintegrating slag is constantly discharged in concentration basin bottom, the disintegrating slag
Realize that comprehensive utilization is processed.
Further, the system also includes：
Bipolar membranous system, the dense room saline of the one-level electric drive membranous system enter bipolar membranous system, and in bipolar membrane system
Electrolysis process is carried out in system, the Chemical cleaning for neutralizing workshop section and a whole set of membranous system being used for after producing soda acid before progressive die.
The pore size filter of the ceramic membranous system is 50 ~ 75nm；
Crossflow velocity is 3 ~ 4m/s；
Membrane flux is 250 ~ 300LMH.
The anion exchange membrane and cation of the one-level electric drive membranous system and two grades of electric drive membranous system rope finances is handed over
Film is changed for heterogeneous membrane or homogeneous membrane；
One-level electric drive membranous system operation electric current density be 5 ~ 10mA/cm2, two grades of electric drive membranous system operation electric current density
For 2.5 ~ 5.0mA/cm2；
The current efficiency control of one-level electric drive membranous system is controlled in the current efficiency of 50 ~ 65%, two grades of electric drive membranous systems
30 ~ 50%.
In 4.0 ~ 5.0MPa, the average flux of reverse osmosis membrane system is 13 for the operating pressure control of the counter-infiltration system
~15LMH。
The operation electric current density domination of the bipolar membranous system in 20 ~ 25mA/cm2, bipolar membranous system sour room acid strength
8 ~ 10%, bipolar membranous system alkali room concentration of lye is controlled 13 ~ 15% for control.
The neutralization reaction pond hydraulic detention time is 20 ~ 30min, and concentration basin hydraulic detention time is 20 ~ 30min.
Another kind of embodiment, system described in the utility model process when processing are as follows：
1st, Thallus Laminariae (Thallus Eckloniae) is soaked with tap water after crushing, and extracts the Algin in leachable and extracts iodine element, is extracting
During can produce a large amount of waste water, waste water enters neutralization reaction pond, by adjust pH to neutrality enter concentration basin；
2nd, in concentration basin, supernatant enters ceramic membranous system by big flow circulating pump, and under pressure, feed liquid is carried out
Thickening filtration, ceramic membranous system concentrated solution are back to concentration basin, and Thallus Laminariae (Thallus Eckloniae) disintegrating slag is constantly discharged in concentration basin bottom, and the disintegrating slag carries out comprehensive
Close using process；
3rd, ceramic membrane permeate enters the light room of one-level electric drive film, and under the process of electric drive membranous system, salinity is constantly moved to
Dense room, salt content constantly reduce, and carry out concentration decrement treatment into counter-infiltration system afterwards；
4th, counter-infiltration system permeate is used for kelp soaking technique and the dense room moisturizing of two grades of electric drive films as recycle-water, instead
Osmosis concentration liquid into the light room of two grades of electric drive films, by entering ion exchange bed after the further desalination of two grades of electric drive films,
After the drying processes such as the remaining salinity of absorption, the Mannitol feed liquid after desalination and concentration is finally evaporated, centrifuge dehydration and drying
Packaging is outer to sell；
5th, the dense room weak brine of two grades of electric drive membranous systems is used for the dense room moisturizing of one-level electric drive membranous system, and salt concentration enters
One step carries out electrolysis process into bipolar membranous system after being lifted, and is used for into the neutralization workshop section before film and the whole series after producing soda acid
The Chemical cleaning of membranous system.
Claims (10)
1. a kind of system using various membrane technology recycling treatment kelp processing waste water, it is characterised in that it includes：
Neutralization reaction pond, to the pH value for adjusting waste water, produces water and enters concentration basin, and the concentration basin is provided with big flow circulating pump；
Ceramic membranous system, the big flow circulating pump will produce water and be delivered to ceramic membranous system, and the ceramic membranous system is made in pressure
Carry out doing filtration with the lower feed liquid to the conveying of big flow delivery pump；
One-level electric drive membranous system, the permeate of the ceramic membranous system enter one-level electric drive membranous system, electric drive membranous system
Dense room and light room are formed by ion exchange, salinity is constantly migrated to dense room, and low salt feed liquid enters light room；
Counter-infiltration system, the light indoor product water of the one-level electric drive membranous system enter counter-infiltration system, the reverse osmosiss system
Used as recycle-water, the recycle-water will be used for kelp soaking and realize reclaiming the permeate of system.
2. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that it also includes：
Two grades of electric drive membranous systems, the concentrated solution of the counter-infiltration system are carried out concentrating, are filtered into two grades of electric drive membranous systems,
The dense room concentrated solution of two grades of electric drive membranous systems is carried out again concentrating, is filtered into one-level electric drive membranous system.
3. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 2,
It is characterized in that the light room feed liquid after the desalination of two grades of electric drive membranous systems enters ion exchange bed, the remaining salinity institute of absorption
The feed liquid of generation is being evaporated, centrifuge dehydration, realize reuse after drying.
4. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that the concentrated solution of the ceramic membranous system is back to concentration basin, Thallus Laminariae (Thallus Eckloniae) disintegrating slag is constantly discharged in concentration basin bottom, and this is broken
Slag realizes that comprehensive utilization is processed.
5. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that it also includes：
Bipolar membranous system, the dense room saline of the one-level electric drive membranous system enter bipolar membranous system, and in bipolar membranous system
Electrolysis process is carried out, the Chemical cleaning for neutralizing workshop section and a whole set of membranous system being used for after producing soda acid before progressive die.
6. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that the pore size filter of the ceramic membranous system is 50 ~ 75nm；
Crossflow velocity is 3 ~ 4m/s；
Membrane flux is 250 ~ 300LMH.
7. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that the anion exchange membrane and cation of the one-level electric drive membranous system and two grades of electric drive membranous system rope finances
Exchange membrane is heterogeneous membrane or homogeneous membrane；
One-level electric drive membranous system operation electric current density is 5 ~ 10mA/cm2, and two grades of electric drive membranous system operation electric current density are
2.5~5.0mA/cm2；
The current efficiency control of one-level electric drive membranous system is controlled 30 in the current efficiency of 50 ~ 65%, two grades of electric drive membranous systems
~50%。
8. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that the operating pressure of the counter-infiltration system is controlled in 4.0 ~ 5.0MPa, the average flux of reverse osmosis membrane system is
13~15LMH。
9. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that the operation electric current density domination of the bipolar membranous system is in 20 ~ 25mA/cm2, bipolar membranous system sour room acid solution is dense
8 ~ 10%, bipolar membranous system alkali room concentration of lye is controlled 13 ~ 15% for degree control.
10. a kind of system using various membrane technology recycling treatment kelp processing waste water according to claim 1,
It is characterized in that the neutralization reaction pond hydraulic detention time is 20 ~ 30min, concentration basin hydraulic detention time is 20 ~ 30min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107324577A (en) * | 2017-08-17 | 2017-11-07 | 长兴上拓环境科技有限公司 | A kind of epoxy resin production waste-water recycling treatment process |
| CN109133448A (en) * | 2018-11-06 | 2019-01-04 | 宜宾海丝特纤维有限责任公司 | A kind of the environment-friendly cycle treatment process and system of viscose glue waste liquid |
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2016
- 2016-08-30 CN CN201620978243.7U patent/CN206051730U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107324577A (en) * | 2017-08-17 | 2017-11-07 | 长兴上拓环境科技有限公司 | A kind of epoxy resin production waste-water recycling treatment process |
| CN109133448A (en) * | 2018-11-06 | 2019-01-04 | 宜宾海丝特纤维有限责任公司 | A kind of the environment-friendly cycle treatment process and system of viscose glue waste liquid |
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