CN104909505A - Treatment system applied to industrial desalination - Google Patents
Treatment system applied to industrial desalination Download PDFInfo
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- CN104909505A CN104909505A CN201510343403.0A CN201510343403A CN104909505A CN 104909505 A CN104909505 A CN 104909505A CN 201510343403 A CN201510343403 A CN 201510343403A CN 104909505 A CN104909505 A CN 104909505A
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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, particularly relate to a kind for the treatment of system for industrial desalination.
Background technology
In the numerous industrial production of China, most of processing mode all adopts the method process strong brine of reverse osmosis process or distillation, and because China extremely lacks water resources, the utilization ratio how improving water resources becomes a great problem in Environmental Protection in China field.Special in the Northwest, rich in mineral resources, brings the also fast development of each industry thereupon, need to consume a large amount of water resourcess, but after water resources utilizes, most of water all cannot reuse, and can only waste.In water resources, sediment charge is too high on the one hand, and wherein containing too much COD, a large amount of salt also adulterates wherein simultaneously, utilizes the conventional equipment of traditional sewage disposal to be difficult to process such trade effluent, also can have a greatly reduced quality the work-ing life of machine simultaneously.Meanwhile, also very high at the solvent-borne type organic content of waste water, use traditional physical method to be difficult to removing, and the salinity in waste water also cannot carry out relevant treatment by general biochemical reaction, causes extreme difficulties equally in water treatment procedure.In water treatment procedure, owing to needing to consume a large amount of energy, when especially adopting conventional process trade effluent, working cost is high, the rate of recovery is low, and how obtaining more how available water resources becomes the current difficulty being badly in need of solving.
Summary of the invention
For solving the problem, the invention discloses a kind for the treatment of system for industrial desalination, clean qualified water can not only be obtained, water after simultaneously filtering can continue to use as the former water of circulating water system and desalination, effectively can reach the comprehensive utilization of waste water, the rate of recovery improves greatly, break through the technical bottleneck of original external introduction, can greatly meet production capacity needs, RO device and salt water separator are combined into the process of row strong brine, working cost is low, reaches the advanced level of international counterparts industry.
In order to achieve the above object, the invention provides following technical scheme: a kind for the treatment of system for industrial desalination, comprise softening pond, settling tank, body refuse treatment unit, strainer, ultra-filtration equipment, one-level RO treatment unit, brine separating device, softening pond is connected with settling tank, settling tank is connected with body refuse treatment unit, body refuse treatment unit is connected with strainer, ultra-filtration equipment is connected with one-level RO treatment unit, one-level RO treatment unit is connected with brine separating device, described body refuse treatment unit comprises force (forcing) pump, gravity type boat davit body refuse concentration basin, settling tank is connected with force (forcing) pump, force (forcing) pump is connected with gravity type boat davit body refuse concentration basin, gravity type boat davit body refuse concentration basin is connected with strainer.
As a preferred embodiment of the present invention, described softening pond comprises one-level and softens pond and secondary softening pond, and one-level is softened pond and is connected with secondary softening pond, and secondary softening pond is connected with settling tank.
As a preferred embodiment of the present invention, described gravity type boat davit body refuse concentration basin also comprises pressure filter, and the water after concentrated is delivered to activated charcoal filter by gravity type boat davit body refuse concentration basin, and the body refuse after concentrated is carried out processing by pressure filter.
As a preferred embodiment of the present invention, described strainer comprises sand-bed filter and activated charcoal filter, and sand-bed filter is connected with activated charcoal filter, and sand-bed filter is connected with gravity type boat davit body refuse concentration basin, and activated charcoal filter is connected with ultra-filtration equipment.
As a preferred embodiment of the present invention, described ultra-filtration equipment comprises ultra-filtration membrane, and ultra-filtration membrane is made up of PVDF external pressure ultra-filtration membrane and interior pressure ultra-filtration membrane.
As a preferred embodiment of the present invention, described brine separating device comprises battery lead plate, salt solution separate chamber, water transport channel, support system, battery lead plate is provided with on the support system of the bottom setting of brine separating device, salt solution separate chamber is positioned at the top of battery lead plate, water transport channel is connected with the side of salt water separator, pole film is respectively arranged with at the two ends of salt solution separate chamber, the sidewall of pole film and salt solution separate chamber forms two pole hydroeciums, pole hydroecium comprises anode pole hydroecium and negative electrode pole hydroecium according to different electrodes, the centre of two side pole films is provided with cationic exchange membrane and anion-exchange membrane, spatial placement between pole film and zwitterion film is dense hydroecium, freshwater room is set between cationic exchange membrane and anion-exchange membrane.
As a preferred embodiment of the present invention, described water pipe needs to arrange different water-ins and water outlet at the sidewall of salt solution separate chamber according to difference, the top of the dense hydroecium of both sides is provided with dense water water-in, bottom is provided with dense water water outlet, the top of freshwater room is provided with raw water inlet, and bottom is provided with fresh water outlet mouth.
The beneficial effect that the present invention possesses: the present invention is by sewer, the dense water of RO of discharging and biochemical waste water carry out process step by step by treatment unit, effectively can not only remove the heavy metal ion in dense water, the macrobeads such as the body refuse in dense water can also be removed in the lump by gravity type boat davit body refuse concentration basin in the lump, add ultra-filtration equipment and one-level RO device, most of throw out can be filtered, suspended substance and COD, produce at de-salted water, the sewer produced in recirculated water operational process, the reverse osmosis concentrated water that Desultwater Station produces, the waste water up to standard that biochemical sewage water outlet produces and middle water can carry out water treatment by the present invention with the high density salt solution produced, water after process can reach recirculated water, make up water standard, finally can close to the target of the zero release of sewage.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the treatment system of industrial desalination.
Fig. 2 is the schematic top plan view of salt water separator.
Fig. 3 is filtration unit schematic internal view.
Reference numerals list: 1-one-level softens pond, 2-secondary softening pond, 3-settling tank, 4-force (forcing) pump, 5-gravity type boat davit body refuse concentration basin, 6-strainer, 7-ultra-filtration equipment, 8-one-level RO treatment unit, 9-salt water separator, 10-battery lead plate, 11-pole film, 12a-cationic exchange membrane, 12b-anion-exchange membrane, 13-raw water inlet, 14-fresh water outlet mouth, 15-dense water water-in, the dense water water outlet of 16-, 17-sand-bed filter, 18-activated charcoal filter.
Embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
A kind for the treatment of system for industrial desalination as shown in Figure 1, comprise softening pond (1,2), settling tank 3, body refuse treatment unit (4,5), strainer 6, ultra-filtration equipment 7, one-level RO treatment unit 8, brine separating device 9, softening pond (1,2) is connected with settling tank 3, settling tank 3 is connected with body refuse treatment unit, body refuse treatment unit is connected with ultra-filtration equipment 7, ultra-filtration equipment 7 is connected with one-level RO treatment unit 8, one-level RO treatment unit 8 is connected with brine separating device, is transported out by fresh water satisfactory after process finally by salt water separator 9.Softening pond comprises one-level and softens pond and secondary softening pond, secondary softening pond is connected with settling tank 3, body refuse treatment unit comprises force (forcing) pump 4, gravity type boat davit body refuse concentration basin 5, strainer 6, settling tank 3 is connected with force (forcing) pump 4, force (forcing) pump 4 is connected with gravity type boat davit body refuse concentration basin 5, and gravity type boat davit body refuse concentration basin 5 is connected with strainer 6, and strainer 6 comprises sand-bed filter 17 and activated charcoal filter 18, sand-bed filter 17 is connected with gravity type boat davit body refuse concentration basin 5, and activated charcoal filter 18 is connected with ultra-filtration equipment 7.
First sewer, dense water and biochemical water enter softening pond and carry out pre-treatment, and one-level is softened in pond and added Ca (OH)
2, for by the most of Ca in brine waste
2+remove, allow it condense into throw out rapidly, secondary softening adds NaCO in pond
3, can with sedimentary form by Mg
2+filter, settling tank 3 is entered by the process water in softening pond, throw out in sofening treatment process is removed, water after filtering in settling tank 3 is delivered in gravity type boat davit body refuse concentration basin 5 by force (forcing) pump 4, advanced treatment is carried out to the water after filtering, can obtain comparing clear water resource, after advanced treatment, the water quality of 80% is protected, next by strainer 6 with removing most throw outs residual in trade effluent sofening treatment, suspended substance and part COD, strainer 6 comprises sand-bed filter 17 part and activated charcoal filter 18 part, sand-bed filter 17 is positioned at the top of activated charcoal filter 6, a large amount of quartz sand medium layers is filled in sand-bed filter 17, can by tiny dirt and float rejection to organics in the inside of medium layer, ensuing filtering system is avoided to be polluted, screen plate is arranged at the bottom of sand-bed filter 17, water after filtration flows in the activated charcoal filter 18 of bottom by screen plate, gac ball is covered with in activated charcoal filter 18, the efficient adsorptive power of gac, the organism in water body can be absorbed, reduce the turbidity of water body simultaneously, colourity, stand fast at the pollution of subsequent filter system.After the two stages for the treatment of of filtration unit, water after treatment enters ultra-filtration equipment 7, according to the principle of film separating system, the material that the waste water overwhelming majority after ultrafiltration easily blocks film can be separated at ultra-filtration membrane place, ultra-filtration equipment 7 adopts the structure of pressure and outer press mold in two kinds, interior pressure ultra-filtration membrane adopts the PS material of permanent hydrophilic to make, and have very strong stretchiness, PVDF external pressure ultra-filtration membrane has stronger filtering accuracy and film silk intensity.Dense water through ultra-filtration equipment 7 enters one-level RO treatment unit 8, one-level RO device adopts reverse osmosis technology, to there is the water of certain pressure by reverse osmosis membrane separation out, according to the inverse pressure thoroughly of the difference of material in water, the material being greater than osmotic pressure can be separated, can by the side of impurities in water partial interception at film, thus produce pure water or high purity water after filtering, qualified water reclamation set is entered by one-level RO device a part of water out, the dense water of a part leads to salt water separator 9 device, carry out concentrated desalination, salt water separator 9 is by the effect of applying direct current electric field, anion and cation exchange membrane can be utilized the selective penetrated property of zwitterion in water, enable ion free migration, thus reach concentrated, purifying, the technology be separated.Brine separating device 9 comprises battery lead plate 10, dividing plate, cationic exchange membrane 12a, anion-exchange membrane 12b, pipeline, support system, pole film 11 is respectively arranged with at the two ends of salt solution separate chamber, pole film 11 forms two pole hydroeciums with the sidewall of salt solution separate chamber, pole hydroecium comprises anode pole hydroecium and negative electrode pole hydroecium according to different electrodes, the centre of two side pole films 11 is provided with cationic exchange membrane 12a and anion-exchange membrane 12b, spatial placement between pole film 11 and ionic membrane is dense hydroecium, freshwater room is set between cationic exchange membrane 12a and anion-exchange membrane 12b, former water enters in salt solution separate chamber by the raw water inlet 13 on the top of freshwater room, dense water is delivered in dense hydroecium by dense water water-in 15 respectively, due to the effect of electrode, negative ion cannot pass through anion-exchange membrane 12b, positively charged ion cannot pass through cationic exchange membrane 12a, but ion migration is carried out in the two direction by electrode, because the ion of middle freshwater room is by serving the effect of ion desalination after ion migration, ion between ion-exchange membrane and pole film 11 is then more poly-more, become dense hydroecium, ion is along with the flowing of electric current, constantly enter dense hydroecium, thus more fresh water can be obtained, the water of dense hydroecium also enters freshwater room after treatment simultaneously, thus reach the governance role of industrial desalination, especially for nitrate radical, chlorine, potassium, sodium and most salt ion have extraordinary separating effect.
Technique means disclosed in the present invention program is not limited only to the technique means disclosed in above-mentioned embodiment, also comprises the technical scheme be made up of above technical characteristic arbitrary combination.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (7)
1. the treatment system for industrial desalination, it is characterized in that: comprise softening pond, settling tank, body refuse treatment unit, strainer, ultra-filtration equipment, one-level RO treatment unit, brine separating device, described softening pond is connected with settling tank, described settling tank is connected with body refuse treatment unit, described body refuse treatment unit is connected with strainer, described ultra-filtration equipment is connected with one-level RO treatment unit, described one-level RO treatment unit is connected with brine separating device, described body refuse treatment unit comprises force (forcing) pump, gravity type boat davit body refuse concentration basin, described settling tank is connected with force (forcing) pump, described force (forcing) pump is connected with gravity type boat davit body refuse concentration basin, described gravity type boat davit body refuse concentration basin is connected with strainer.
2. the treatment system for industrial desalination according to claim 1, is characterized in that: described softening pond comprises one-level and softens pond and secondary softening pond, and one-level is softened pond and is connected with secondary softening pond, and secondary softening pond is connected with settling tank.
3. the treatment system for industrial desalination according to claim 1, it is characterized in that: described gravity type boat davit body refuse concentration basin also comprises pressure filter, water after concentrated is delivered to strainer by gravity type boat davit body refuse concentration basin, and the body refuse after concentrated is carried out processing by pressure filter.
4. the treatment system for industrial desalination according to claim 1, it is characterized in that: described strainer comprises sand-bed filter and activated charcoal filter, sand-bed filter is connected with activated charcoal filter, and sand-bed filter is connected with gravity type boat davit body refuse concentration basin, and activated charcoal filter is connected with ultra-filtration equipment.
5. the treatment system for industrial desalination according to claim 1, is characterized in that: described ultra-filtration equipment comprises ultra-filtration membrane, and ultra-filtration membrane is made up of PVDF external pressure ultra-filtration membrane and interior pressure ultra-filtration membrane.
6. the treatment system for industrial desalination according to claim 1, it is characterized in that: described brine separating device comprises battery lead plate, salt solution separate chamber, water transport channel, support system, battery lead plate is provided with on the support system of the bottom setting of brine separating device, salt solution separate chamber is positioned at the top of battery lead plate, water transport channel is connected with the side of salt solution separate chamber, pole film is respectively arranged with at the two ends of salt solution separate chamber, the sidewall of pole film and salt solution separate chamber forms two pole hydroeciums, pole hydroecium comprises anode pole hydroecium and negative electrode pole hydroecium according to different electrodes, the centre of two side pole films is provided with cationic exchange membrane and anion-exchange membrane, spatial placement between pole film and zwitterion film is dense hydroecium, freshwater room is set between cationic exchange membrane and anion-exchange membrane.
7. the treatment system for industrial desalination according to claim 6, it is characterized in that: described water pipe arranges different water-ins and water outlet according to difference needs at the sidewall of salt solution separate chamber, the top of the dense hydroecium of both sides is provided with dense water water-in, bottom is provided with dense water water outlet, the top of freshwater room is provided with raw water inlet, and bottom is provided with fresh water outlet mouth.
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| CN201510343403.0A CN104909505B (en) | 2015-06-19 | 2015-06-19 | Treatment system applied to industrial desalination |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365274A (en) * | 2016-11-07 | 2017-02-01 | 沈阳艾柏瑞环境科技有限公司 | Technological device and technological method for carrying out desalting treatment on underground water by using electrically-driven ionic membrane |
| 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 |
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| 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 |
-
2015
- 2015-06-19 CN CN201510343403.0A patent/CN104909505B/en active Active
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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365274A (en) * | 2016-11-07 | 2017-02-01 | 沈阳艾柏瑞环境科技有限公司 | Technological device and technological method for carrying out desalting treatment on underground water by using electrically-driven ionic membrane |
| 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 |
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