CN104909505B - Treatment system applied to industrial desalination - Google Patents
Treatment system applied to industrial desalination Download PDFInfo
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- CN104909505B CN104909505B CN201510343403.0A CN201510343403A CN104909505B CN 104909505 B CN104909505 B CN 104909505B CN 201510343403 A CN201510343403 A CN 201510343403A CN 104909505 B CN104909505 B CN 104909505B
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Abstract
The invention discloses a treatment system applied to industrial desalination. The treatment system applied to industrial desalination comprises a softening tank, a precipitating tank, a sludge treatment device, a filter, an ultra-filtration device, a primary RO treatment device and a salt-water separator, wherein the softening tank is connected with the precipitating tank; the precipitating tank is connected with the sludge treatment device; the sludge treatment device is connected with the ultra-filtration device; the ultra-filtration device is connected with the primary RO treatment device; the primary RO treatment device is connected with the salt-water separator. By virtue of the treatment system applied to industrial desalination, the clean qualified water can be obtained; meanwhile, the filtered water can be used as circulation water, supplementary water and desalination raw water for further use; the comprehensive utilization of wastewater can be implemented; the recovery rate is greatly increased; the original technical problem that the treatment system is introduced from abroad; the productivity requirements can be greatly met; the RO device and the salt-water separator are combined for treating concentrated saltwater; the operation cost is low; the advanced level of the international same industry can be reached.
Description
Technical field
The invention belongs to sewage disposal field of environment protection, more particularly to a kind of processing system for industrial desalination.
Background technology
In the numerous commercial production of China, most of processing mode adopts reverse osmosis process or the method for distillation to process
Strong brine, as China extremely lacks water resource, the utilization rate for how improving water resource becomes a disaster in Environmental Protection in China field
Topic.Especially in the Northwest, rich in mineral resources, the also fast development of each industry is brought therewith, need to consume substantial amounts of water money
Source, but in water resource using later, most of water cannot all be reused, and can only waste.Silt in one side water resource
Too high levels, wherein containing excessive COD, while a large amount of salts also adulterate wherein, being set using the routine of traditional sewage disposal
It is standby to be difficult to process such industrial wastewater, while the service life of machine can also be had a greatly reduced quality.Meanwhile, have in the solvent-borne type of waste water
Machine thing content is also very high, is difficult to remove with traditional physical method, and the salinity in waste water also cannot be by general biochemical
Reaction carries out relevant treatment, and extreme difficulties are equally caused in water treatment procedure.In water treatment procedure, due to needing to consume big
The energy of amount, during especially with conventional process industrial wastewater, operating cost is high, the response rate is low, how to obtain it is more can profit
Water resource becomes the current difficulty be badly in need of and solving.
The content of the invention
To solve the above problems, the invention discloses a kind of processing system for industrial desalination, can not only obtain clean
Net qualified water, while the water after filtering can be continuing with as the raw water of circulating water system and desalination, effectively can reach
To the comprehensive utilization of waste water, the response rate is greatly improved, and is broken through original external technical bottleneck introduced, can be met significantly production capacity need
Will, RO devices and the combination of salt water separator are carried out into the process of strong brine, operating cost is low, reaches the first water inlet of international counterparts industry
It is flat.
In order to achieve the above object, the present invention provides following technical scheme：A kind of processing system for industrial desalination, bag
Softening pond, sedimentation tank, body refuse processing meanss, filter, ultrafiltration apparatus, one-level RO processing meanss, brine separating device are included, is softened
Pond is connected with sedimentation tank, and sedimentation tank is connected with body refuse processing meanss, and body refuse processing meanss are connected with filter, ultrafiltration apparatus and
Level RO processing meanss are connected, and one-level RO processing meanss are connected with brine separating device, the body refuse processing meanss include force (forcing) pump,
Gravity type body refuse concentration basin, sedimentation tank are connected with force (forcing) pump, and force (forcing) pump is connected with gravity type body refuse concentration basin, and gravity type body refuse is dense
Contracting pond is connected with filter；The softening pond includes that one-level softens pond and secondary softening pond, and one-level softens pond and secondary softening pond
It is connected, secondary softening pond is connected with sedimentation tank；The filter includes sand filter and active carbon filter, sand filter and activated carbon
Filter is connected, and sand filter is connected with gravity type body refuse concentration basin, and active carbon filter is connected with ultrafiltration apparatus；The salt moisture
Include battery lead plate, saline separation chamber, water transport channel, support system, the support system of the bottom setting of brine separating device from device
Battery lead plate is provided with system, saline separation chamber is located at the top of battery lead plate, and water transport channel is connected with the side of salt water separator,
Pole film is respectively arranged with the two ends of saline separation chamber, pole film constitutes two pole hydroeciums, pole hydroecium with the side wall of saline separation chamber
Anode pole hydroecium and negative electrode pole hydroecium are included according to different electrodes, the middle setting of two side pole films have cation exchange membrane with
Anion exchange membrane, the space between pole film and zwitterion film are set to concentrated water room, cation exchange membrane and anion exchange
Freshwater room is set between film.
Used as a preferred embodiment of the present invention, the gravity type body refuse concentration basin also includes pressure filter, gravity type body refuse
Water after concentration is delivered to active carbon filter by concentration basin, and the body refuse after concentration is carried out processing by pressure filter.
Used as a preferred embodiment of the present invention, the ultrafiltration apparatus include ultrafilter membrane, and ultrafilter membrane is by PVDF external pressure ultrafiltration
Film is made with intrinsic pressure ultrafilter membrane.
Used as a preferred embodiment of the present invention, the aqueduct needs the side wall in saline separation chamber to set according to different
Different water inlets and outlet are put, concentrated water water inlet at the top of the concentrated water room of both sides, is provided with, bottom is provided with concentrated water water outlet
Mouthful, raw water inlet is provided with the top of freshwater room, bottom is provided with fresh water outlet mouth.
The beneficial effect that the present invention possesses：Sewer, the RO concentrated waters of discharge and biochemical waste water are filled by the present invention by processing
The process for carrying out step by step is put, the heavy metal ion in concentrated water can not only be effectively removed, additionally it is possible to by body refuse in concentrated water etc.
Bulky grain is removed in the lump by gravity type body refuse concentration basin in the lump, is added ultrafiltration apparatus and one-level RO device, can be filtered big portion
Fractional precipitation thing, float and COD, the sewer for produce in desalted water, producing in recirculated water running, Desultwater Station are produced
The waste water up to standard and middle water that reverse osmosis concentrated water, biochemical sewage water outlet are produced can use the high concentration saline for producing pass through this
Invention carries out water process, and the water energy after process enough reaches recirculated water, supplements water quality standard, can finally be close to the zero-emission of sewage
Target.
Description of the drawings
Fig. 1 is the schematic diagram of the processing system of industrial desalination.
Schematic top plan views of the Fig. 2 for salt water separator.
Fig. 3 is defecator schematic internal view.
Reference numerals list：1- one-levels soften pond, 2- secondary softenings pond, 3- sedimentation tanks, 4- force (forcing) pumps, 5- gravity type body refuses
Concentration basin, 6- filters, 7- ultrafiltration apparatus, 8- one-level RO processing meanss, 9- salt water separators, 10- battery lead plates, 11- poles film,
12a- cation exchange membranes, 12b- anion exchange membrane, 13- raw water inlets, 14- fresh water outlet mouths, 15- concentrated water water inlets,
16- concentrated water outlets, 17- sand filters, 18- active carbon filters.
Specific embodiment
The technical scheme that the present invention is provided is described in detail below with reference to specific embodiment, it should be understood that following concrete
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
At a kind of processing system for industrial desalination as shown in Figure 1, including softening pond (1,2), sedimentation tank 3, body refuse
Reason device (4,5), filter 6, ultrafiltration apparatus 7, one-level RO processing meanss 8, brine separating device 9, soften pond (1,2) with precipitation
Pond 3 is connected, and sedimentation tank 3 is connected with body refuse processing meanss, and body refuse processing meanss are connected with ultrafiltration apparatus 7, ultrafiltration apparatus 7 and one-level
RO processing meanss 8 are connected, and one-level RO processing meanss 8 are connected with brine separating device, will be processed finally by salt water separator 9
Satisfactory fresh water is transported out afterwards.Softening pond includes that one-level softens pond and secondary softening pond, secondary softening pond and sedimentation tank 3
It is connected, body refuse processing meanss include force (forcing) pump 4, gravity type body refuse concentration basin 5, filter 6, and sedimentation tank 3 is connected with force (forcing) pump 4,
Force (forcing) pump 4 is connected with gravity type body refuse concentration basin 5, and gravity type body refuse concentration basin 5 is connected with filter 6, and filter 6 includes sand filtration
Device 17 and active carbon filter 18, sand filter 17 are connected with gravity type body refuse concentration basin 5, active carbon filter 18 and ultrafiltration apparatus
7 are connected.
Sewer, concentrated water and biochemical water initially enter softening pond and carry out pretreatment, and one-level adds Ca (OH) 2 in softening pond,
For the most of Ca2+ in brine waste is removed, allow which to be rapidly condensed into precipitate, add in secondary softening pond
Mg2+ can be filtered in the form of precipitate by NaCO3, enter sedimentation tank 3 by the process water softened in pond, will soften
Precipitate in processing procedure is removed, and the water after filtering in sedimentation tank 3 is delivered to the concentration of gravity type body refuse by force (forcing) pump 4
In pond 5, advanced treating is carried out to the water after filtration, can obtain comparing clear water resource, 80% after advanced treating
Water quality is protected, followed by filter 6 be used for remove remain in industrial wastewater sofening treatment most precipitate,
Float and part COD, filter 6 include 18 part of 17 part of sand filter and active carbon filter, and sand filter 17 is located at activity
The top of carbon filter 6, fills substantial amounts of quartz sand dielectric layer in sand filter 17, can be organic with what is floated by tiny dirt
Thing is trapped in the inside of dielectric layer, it is to avoid ensuing filtration system is polluted, and screen plate is arranged at the bottom of sand filter 17, filters
Water afterwards is flowed into by screen plate in the active carbon filter 18 of bottom, is covered with activated carbon ball in active carbon filter 18, activity
The efficient absorbability of charcoal, can absorb the Organic substance in water body, while reducing the turbidity of water body, colourity, stand fast at subsequent filter
The pollution of system.After the two stages for the treatment of of defecator, water after treatment enters ultrafiltration apparatus 7, according to membrance separation system
The principle of system, the waste water overwhelming majority after ultrafiltration easily block the material of film and can be separated at ultrafilter membrane, ultrafiltration
Device 7 adopts two kinds of intrinsic pressure structures with outer press mold, and intrinsic pressure ultrafilter membrane is made using the PS materials of permanent hydrophilic, with very strong
Draftability, PVDF external pressures ultrafilter membrane have stronger filtering accuracy and film silk intensity.One-level is entered through the concentrated water of ultrafiltration apparatus 7
RO processing meanss 8, one-level RO device adopt reverse osmosis technology, and the water with certain pressure is passed through reverse osmosis membrane separation out,
According to the inverse pressure thoroughly of difference of material in water, the material that can will be greater than osmotic pressure is separated, can be blocked impurities in water part
Cut in the side of film, so as to pure water or high purity water are produced after filtering, entered by one-level RO device a part of water out and closed
Lattice water recycling device, a part of concentrated water lead to 9 device of salt water separator, carry out concentration desalination, and salt water separator 9 is by additional straight
The effect of stream electric field, can utilize selective penetrated property of the anion and cation exchange membrane to zwitterion in water, enable ion free
Migration, so as to reach concentration, purification, detached technology.Brine separating device 9 includes battery lead plate 10, dividing plate, cation exchange membrane
12a, anion exchange membrane 12b, pipeline, support system, are respectively arranged with pole film 11 at the two ends of saline separation chamber, pole film 11 with
The side wall of saline separation chamber constitutes two pole hydroeciums, and pole hydroecium includes anode pole hydroecium and negative electrode pole water according to different electrodes
, there are cation exchange membrane 12a and an anion exchange membrane 12b in room in the middle setting of two side pole films 11, pole film 11 and ionic membrane it
Between space be set to concentrated water room, be set to freshwater room between cation exchange membrane 12a and anion exchange membrane 12b, raw water is led to
The raw water inlet 13 for crossing the top of freshwater room is entered in saline separation chamber, and concentrated water is delivered to concentrated water by concentrated water water inlet 15 respectively
In room, due to the effect of electrode, anion cannot cannot pass through cation exchange membrane by anion exchange membrane 12b, cation
12a, but the two carries out ion migration by the direction of electrode, as the ion of middle freshwater room is served after ion migration
The effect of ion desalination, and the ion between ion exchange membrane and pole film 11 is then more poly- more, becomes concentrated water room, ion is with electricity
The flowing of stream, constantly enters concentrated water room such that it is able to obtain more fresh water, at the same the water of concentrated water room after treatment also into
Freshwater room, so as to reach the governance role of industrial desalination, especially for nitrate anion, chlorine, potassium, sodium and most salt ions
With extraordinary separating effect.
Technological means disclosed in the present invention program are not limited only to the technological means disclosed in above-mentioned embodiment, also include
The technical scheme being made up of above technical characteristic combination in any.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (4)
1. a kind of processing system for industrial desalination, it is characterised in that：Including softening pond, sedimentation tank, body refuse processing meanss, mistake
Filter, ultrafiltration apparatus, one-level RO processing meanss and brine separating device, the softening pond are connected with sedimentation tank, the sedimentation tank
It is connected with body refuse processing meanss, the body refuse processing meanss are connected with filter, the ultrafiltration apparatus and one-level RO processing meanss
It is connected, the one-level RO processing meanss are connected with brine separating device；The body refuse processing meanss include force (forcing) pump and gravity type
Body refuse concentration basin, the sedimentation tank are connected with force (forcing) pump, and the force (forcing) pump is connected with gravity type body refuse concentration basin, the gravity type
Body refuse concentration basin is connected with filter；The softening pond includes that one-level softens pond and secondary softening pond, and one-level softens pond with two grades
Soften pond to be connected, secondary softening pond is connected with sedimentation tank；The filter includes sand filter and active carbon filter, sand filter with
Active carbon filter is connected, and sand filter is connected with gravity type body refuse concentration basin, and active carbon filter is connected with ultrafiltration apparatus；It is described
Brine separating device includes battery lead plate, saline separation chamber, water transport channel and support system, the bottom setting of brine separating device
Battery lead plate is provided with support system, saline separation chamber is located at the side of the top of battery lead plate, water transport channel and saline separation chamber
Face is connected, and is respectively arranged with pole film at the two ends of saline separation chamber, and pole film constitutes two pole hydroeciums with the side wall of saline separation chamber,
And pole hydroecium is divided into anode pole hydroecium and negative electrode pole hydroecium according to the difference of electrode, the middle setting of two side pole films have sun from
Proton exchange and anion exchange membrane, the space between pole film and zwitterion film are set to concentrated water room, cation exchange membrane with
Freshwater room is set between anion exchange membrane.
2. the processing system for industrial desalination according to claim 1, it is characterised in that：The gravity type body refuse concentration
Pond also includes pressure filter, and the water after concentration is delivered to filter by gravity type body refuse concentration basin, and pressure filter is by the body refuse after concentration
Carry out processing.
3. the processing system for industrial desalination according to claim 2, it is characterised in that：The ultrafiltration apparatus include surpassing
Filter membrane, ultrafilter membrane are made up with intrinsic pressure ultrafilter membrane of PVDF external pressures ultrafilter membrane.
4. the processing system for industrial desalination according to any one of claim 1-3, it is characterised in that：The water-supply-pipe
Road arranges different water inlets and outlet according to the different side walls needed in saline separation chamber, sets at the top of the concentrated water room of both sides
Concentrated water water inlet is equipped with, bottom is provided with concentrated water outlet, and raw water inlet is provided with the top of freshwater room, and bottom is provided with light
Water outlet.
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| CN201510343403.0A CN104909505B (en) | 2015-06-19 | 2015-06-19 | Treatment system applied to industrial desalination |
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| CN201510343403.0A CN104909505B (en) | 2015-06-19 | 2015-06-19 | Treatment system applied to industrial desalination |
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| CN104909505A CN104909505A (en) | 2015-09-16 |
| CN104909505B true CN104909505B (en) | 2017-04-26 |
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| CN106365274B (en) * | 2016-11-07 | 2019-03-26 | 沈阳艾柏瑞环境科技有限公司 | A kind of underground water power expels the process unit and method of sub- film desalting processing |
| CN106587438A (en) * | 2016-12-28 | 2017-04-26 | 安徽华塑股份有限公司 | Treatment method for waste water containing mercury in PVC production through calcium carbide process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445788A (en) * | 2014-12-24 | 2015-03-25 | 新疆德蓝股份有限公司 | Zero-emission integrated process for treatment and reuse of high-salinity wastewater |
| CN204981434U (en) * | 2015-06-19 | 2016-01-20 | 江苏华晖环保科技有限公司 | A processing system for industry desalination |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445788A (en) * | 2014-12-24 | 2015-03-25 | 新疆德蓝股份有限公司 | Zero-emission integrated process for treatment and reuse of high-salinity wastewater |
| CN204981434U (en) * | 2015-06-19 | 2016-01-20 | 江苏华晖环保科技有限公司 | A processing system for industry desalination |
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