CN201737783U - Treating device for recycling wastewater to produce industrial ultrapure water - Google Patents

Treating device for recycling wastewater to produce industrial ultrapure water Download PDF

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Publication number
CN201737783U
CN201737783U CN2010202125140U CN201020212514U CN201737783U CN 201737783 U CN201737783 U CN 201737783U CN 2010202125140 U CN2010202125140 U CN 2010202125140U CN 201020212514 U CN201020212514 U CN 201020212514U CN 201737783 U CN201737783 U CN 201737783U
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China
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reverse osmosis
waste water
water
osmosis device
pure water
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Expired - Fee Related
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CN2010202125140U
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Chinese (zh)
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周志军
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Hangzhou Lierda Science & Technology Co Ltd
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Hangzhou Lierda Science & Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model discloses a treating device for recycling wastewater to produce industrial ultrapure water. The treating device comprises a pretreatment device, a preposed activated charcoal adsorption device, a primary reverse osmosis device, a rear-mounted activated charcoal adsorption device, a secondary reverse osmosis device, and an electric deionization device; a waste water tank, a medicine feeding device and a raw water pump are connected to the front part of the pretreatment device; a scale inhibitor adding device, a first security filter, and a primary high-pressure pump are connected between the pretreatment device and the primary reverse osmosis device; a security filter and a secondary high-pressure pump are connected between the rear-mounted activated charcoal adsorption device and the secondary reverse osmosis device; a purified water tank and a purified water pump are connected between the secondary reverse osmosis device and the electric deionization device; and a terminal filter and an ultrapure water tank are connected to the rear part of the electric deionization device. The utility model has the advantages of stable operation, simplicity, high efficiency, stability and low cost, and can be widely used in electronics, quasi-conductors and other industries, which consume large amount of ultrapure water, for wastewater treatment, as well as wastewater treatment in urban area for using the waste water as makeup water for boilers in power plants.

Description

A kind of waste water recycling is the treatment unit of industrial extra-pure water
Technical field
The utility model relates to the treatment unit field of water, waste water or sewage, especially relates to the treatment unit that a kind of waste water recycling is an industrial extra-pure water.
Background technology
China's water resources extremely lacks, and the conserve water resource has great strategic importance.Develop a circular economy, to improving resource utilization and building a resource-conserving and environment-friendly society significant.
Industrial circles such as electronics, semi-conductor, photovoltaic, coated glass need clean and the ultrapure water of the usefulness of making up a prescription in a large number, the common 10-150M of consumption 3/ h, water quality requirement 10M Ω .cm-18.2M Ω .cm.The former water overwhelming majority of industrial extra-pure water preparation at present adopts city tap-water, and the main flow production equipment is that reverse osmosis adds the mixed bed ion exchange integrated device.The water for cleaning of high purity product industry becomes the waste water of heavy metal ion such as having a large amount of chemicals, soda acid and copper, nickel, tin, lead at last, and is very big to environmental influence.Tradition materialization and biochemical treatment apparatus are to manage to allow discharged wastewater met the national standard, even but qualified discharge because electronics, semi-conductor, photovoltaic are the mainstay industries of China, have a large capacity and a wide range, environmental stress is still very big.Therefore, cleaner production and cycling utilization of wastewater are the external pressure and the domestic demands of these industries.The part reuse water that the tradition wastewater treatment equipment obtains is because organism and metal ion content height, can not satisfy production technique water specification of quality, can only be used as miscellaneous water, therefore, the water reuse still can not solve a large amount of former water demand of production technique water in the waste water part, and actual water resources reduction effect is very limited.For example in water consumption and the printed-wiring board (PWB) PCB of heavy polluter industry, many large and medium-sized enterprise wastewater discharge every day reaches tons up to ten thousand.
Reverse osmosis has the efficient interception capacity to organism and ionic contamination, is one of most important waste water resource high-value-use technology.In the less demanding PCB industry of overall water quality, the existing case that waste water partly is back to production line with reverse osmosis membrane technology.Even but adopt two-pass reverse osmosis also can't directly obtain ultrapure water, need to handle through follow-up mixed bed ion exchange or electrodeionization (EDI).It is present state-of-the-art ultrapure water clearer production technology that reverse osmosis adds electrodeionization, compare with traditional mixed bed ion switching technology, electrodeionization itself is exactly a kind of full-automatic operation, water conditioning continuously, do not waste water and chemical, floor space is little, running cost is very low deep desalting technology, will replace traditional mixed bed ion exchange process.But the heavy metal ion of the conventional at present EDI module strict demand water inlet of using, calcium ions and magnesium ions content are less than 1ppm, even 0.5ppm, otherwise easily cause the module fouling, and influence is normally used.Can't compare with city tap-water owing to have the processing procedure waste water quality of a large amount of chemicals, soda acid and heavy metal ion such as copper, nickel, it is former water that existing EDI module mainly is used in city tap-water, does with reverse osmosis in the ultrapure water preparation facilities of pre-treatment.On the other hand, reverse osmosis membrane technology is not high to the rejection to organics rate below 100 molecular weight, and especially organic solvent is more difficult, even can be destroyed, even also undesirable by the two-pass reverse osmosis separating effect, excessive organism can make follow-up dual wavelength ultraviolet lamp be difficult to heavy burden, influences ultrapure water water quality.Therefore, it is ultrapure water that trade effluent or municipal middle water add the reuse of electrodeionization clearer production technology through reverse osmosis, need optimization design, solve that excessive organism, heavy metal ion, hardness, salt influence ultrapure water water quality, film pollutes and the problem of stable equipment operation.
Summary of the invention
The utility model provides a kind of waste water high quality Circulation reusing and treating device, and trade effluent and municipal middle water are treated as industrial extra-pure water, reaches the purpose of waste water discharge-reducing and conserve water resource.
A kind of waste water recycling is the treatment unit of industrial extra-pure water, comprise: pretreatment unit, preposition activated charcoal adsorption unit, first-stage reverse osmosis device, post active carbon adsorption unit, two-pass reverse osmosis device and electric deionizer are connected with waste water tank, chemicals dosing plant and raw water pump in turn before the described pretreatment unit; Be connected to Scale inhibitors adding set, first security personnel's strainer, one-level high-pressure pump between preposition activated charcoal adsorption unit and the first-stage reverse osmosis device successively, connect the post active carbon adsorption unit behind the first-stage reverse osmosis device, be connected with security personnel's strainer and secondary high-pressure pump between post active carbon adsorption unit and the two-pass reverse osmosis device in turn, be connected with pure water case and pure water pump between two-pass reverse osmosis device and electric deionizer in turn, be connected with inline final filter and ultrapure water tank behind the electric deionizer.
Described pretreatment unit is more medium filter, ultra filtration filter or membrane bioreactor.
Described electric deionizer is the secondary electric deionizer, runner is divided into secondary, first step runner and second stage runner are cascaded structure, what first step runner loaded is Zeo-karb, what be different from conventional electrodeionization module freshwater room filling all is the mixed bed ion exchange resin, purpose is that pre-treatment is carried out in the water inlet of freshwater room, promptly under DC electric field drives, remove easily fouling composition such as heavy metal ion excessive in the fresh water and calcium ions and magnesium ions, guarantee to flow into the water inlet hardness number of second stage fresh water runner (ultrapure water preparation zone) in security level.The filling of second stage runner be only the mixed bed ion exchange resin, equally with conventional electrodeionization module be used to prepare ultrapure water.
The degree of depth was adsorbed micro-small organic molecule after post active carbon adsorption unit described in the utility model was used for reverse osmosis unit, because adsorptive capacity is few, adsorption site can go deep into capillary channel inside, adsorption activity is not by completely destroy, the activated carbon granule cleaning surfaces can be used as preposition activated charcoal adsorption unit chlorine residue in the waste water, organism, greasy dirt and colloid is carried out surface or inner adsorption treatment.Switch and the post active carbon adsorption unit can be reused as preposition activated charcoal adsorption unit by simple valve is set, do not influence its effect, do not increase use cost.At first as in the post active carbon device, the post active carbon after the absorption can directly be used as preposition activated charcoal to new gac, can not influence the effect that it removes colloid, greasy dirt and oxidisability composition.
Treatment unit described in the utility model adds the electrodeionization modern technique based on reverse osmosis, with the reuse of waste water high quality is ultrapure water, overcome traditional materialization and biochemical treatment apparatus and can't be the defective of production line, solved the problem that excessive organism, heavy metal ion, hardness, acid-base neutralisation salt in the insoluble waste water of existing conventional ultrapure water treatment unit influences ultrapure water water quality, film pollution and stable equipment operation with ultrapure water with the trade effluent cyclically utilizing.
The utility model treatment unit can become the wastewater treatment of being rich in organic washing agent, heavy metal ion the qualified ultrapure water of TOC, and the equipment of assurance steady running, has simple, efficient, stable, advantage cheaply, the water reclamation rate reaches more than 60%, can be widely used in the wastewater treatment of industry such as a large amount of electronics that use ultrapure water, semi-conductor and the municipal middle water reuse wastewater treatment as the boiler of power plant supplementary feed.
Description of drawings
Fig. 1 is the setting drawing of the utility model device.
Embodiment
As shown in Figure 1, for a kind of waste water recycling according to the utility model enforcement is the treatment unit of industrial extra-pure water, comprise waste water tank 1, chemicals dosing plant 2, raw water pump 3, more medium filter 4, preposition activated carbon filter 5, Scale inhibitors adding set 6, first security personnel's strainer 7, one-level high-pressure pump 8, first-stage reverse osmosis treatment unit 9, post active carbon strainer 10, second security personnel's strainer 11, secondary high-pressure pump 12, two-pass reverse osmosis treatment unit 13, pure water case 14, pure water pump 15, electric deionizer 16, inline final filter 17, ultrapure water tank 18, aforesaid device connects successively.
Wherein the outlet of chemicals dosing plant 2 is connected between waste water tank 1 and the raw water pump 3, and the outlet of Scale inhibitors adding set 6 is connected between preposition activated carbon filter 5 and the first security personnel's strainer 7.
Be provided with valve a between more medium filter 4 and the preposition activated carbon filter 5;
Be provided with valve e between first security personnel's strainer 7 and the one-level high-pressure pump 8;
Be provided with valve d between first-stage reverse osmosis treatment unit 9 and the post active carbon strainer 10;
Be provided with valve h between second security personnel's strainer 11 and the secondary high-pressure pump;
Have a pipeline to be connected between valve d and the post active carbon strainer 10 between more medium filter 4 and the valve a, this pipeline is provided with valve b;
Have a pipeline to be connected between first-stage reverse osmosis treatment unit 9 and the valve d between valve a and the preposition activated carbon filter 5, this pipeline is provided with valve c;
Have a pipeline to be connected between valve h and the secondary high-pressure pump 12 between first security personnel's strainer 7 and the valve e, this pipeline is provided with valve g;
Have a pipeline to be connected between second security personnel's strainer 11 and the valve h between valve e and the one-level high-pressure pump, this pipeline is provided with valve f.
Through the waste water after materialization and the biochemical treatment or at first be pumped to waste water tank from the industrial process waste water of equalizing tank and deposit, after the waste water that goes out waste water tank adds flocculation agents by chemicals dosing plant 2, pump into more medium filter 4 through raw water pump 3 and filter, remove various suspended substances, mechanical granule foreign.Advance preposition activated carbon filter 5 absorption again and remove oxidizing substance and the colloidal organic matter that reverse osmosis membrane is had the degraded destruction, add Scale inhibitors from the water outlet that preposition activated charcoal filter 5 comes out by Scale inhibitors adding set 6, advance first security personnel's strainer 7 again and hold back the mechanical granule foreigns such as gac of leakage.Through aforementioned filtration step, waste water reaches the water inlet requirement of reverse osmosis unit.Then waste water is pumped into first-stage reverse osmosis treatment unit 9 with one-level high-pressure pump 8, the reverse osmosis membrane of surperficial electronegative or electroneutral anti-Organic pollutants is housed in the first-stage reverse osmosis treatment unit 9, can efficiently remove all kinds of ions and organism more than 97%, the clear that becomes of the waste water after first-stage reverse osmosis is handled.The reverse osmosis that will remove most pollutents again sees through liquid and directly advances post active carbon strainer 10, removes the small organic molecule of not held back by reverse osmosis with the absorption of the post active carbon degree of depth.Again through second security personnel strainer 11 filtration treatment, water outlet pumps into two-pass reverse osmosis treatment unit 13 through secondary high-pressure pump 12, adopting the positively charged high desalination reverse osmosis membrane in surface that two-pass reverse osmosis is carried out in water inlet in the two-pass reverse osmosis treatment unit handles, further reduce heavy metal ion, hardness and salinity, to alleviate the load of follow-up electrodeionization deep desalting device, can satisfy the water inlet requirement of electric deionizer substantially to heavy metal ion and calcium ions and magnesium ions hardness.Become the pure water of specific conductivity 1-10 μ s/cm (resistivity 1-0.1M Ω .cm) after post active carbon absorption of waste water process and two-pass reverse osmosis are handled, can be used for the process water of most of PCB industry, send into pure water case 14 and store.With pure water pump 15 pure water is sent into secondary electrodeionization module deep desalting at last, prepare resistivity 15M Ω .cm-18M Ω .cm and the TOC industrial extra-pure water less than 0.5ppm, the water reclamation rate is more than 60%, goes into ultrapure water case 18 and stores through inline final filter 17 is laggard again.Also can install the dual wavelength ultraviolet lamp again additional to the ultrapure water that makes and further reduce TOC, prepare the high quality ultrapure water.
Reused as the preposition activated charcoal of reverse osmosis by simple valve switching after post active carbon absorption is saturated.Concrete operation method is as follows: when normally using, preposition activated charcoal and post active carbon are positioned at position shown in Figure 3, valve-off b, c, f, g, open valve a, e, d, h, allow pending waste water handle through preposition activated carbon filter 5, first-stage reverse osmosis treatment unit 9, post active carbon strainer 10 etc. successively; After post active carbon absorption is saturated, by valve-off a, e, d, h and open valve b, c, f, g, reverse osmosis postposition gac originally becomes the preposition activated charcoal of reverse osmosis, preposition activated charcoal originally becomes post active carbon, after pending waste water comes out from more medium filter 4, go post active carbon strainer 10 and second security personnel's strainer 11 to handle by valve b earlier, again through valve f, one-level high-pressure pump 8 goes first-stage reverse osmosis treatment unit 9 to carry out reverse-osmosis treated, advance preposition activated carbon filter 5 through valve c then and carry out the charcoal absorption processing, water outlet is added into Scale inhibitors by the Scale inhibitors adding set, through first security personnel's strainer 7, valve g, secondary high-pressure pump 12 goes the two-pass reverse osmosis treatment unit to handle.Only change post active carbon when changing fresh gac, the post active carbon that changes can not influence the effect that it removes colloid, greasy dirt and oxidisability composition during as the preposition activated charcoal of reverse osmosis, reaches purpose simple to operate, that save cost.

Claims (6)

1. treatment unit that waste water recycling is an industrial extra-pure water, comprise: pretreatment unit (4), preposition activated charcoal adsorption unit (5), first-stage reverse osmosis device (9), post active carbon adsorption unit (10), two-pass reverse osmosis device (13) and electric deionizer (16), it is characterized in that: the preceding waste water tank (1) that is connected with in turn of described pretreatment unit (4), chemicals dosing plant (2) and raw water pump (3), be connected to Scale inhibitors adding set (6) successively between preposition activated charcoal adsorption unit (5) and the first-stage reverse osmosis device (9), first security personnel's strainer (7), one-level high-pressure pump (8), first-stage reverse osmosis device (9) back connects post active carbon adsorption unit (10), be connected with second security personnel's strainer (11) and the secondary high-pressure pump (12) between post active carbon adsorption unit (10) and the two-pass reverse osmosis device (13) in turn, be connected with pure water case (14) and pure water pump (15) between two-pass reverse osmosis device (13) and electric deionizer (16) in turn, be connected with inline final filter (17) and ultrapure water tank (18) behind the electric deionizer (16).
2. waste water recycling according to claim 1 is the treatment unit of industrial extra-pure water, it is characterized in that: described pretreatment unit (4) is more medium filter, ultra filtration filter or membrane bioreactor.
3. waste water recycling according to claim 1 is the treatment unit of industrial extra-pure water, it is characterized in that: the electronegative or electric neutrality in reverse osmosis membrane surface that adopts in the described first-stage reverse osmosis device (9).
4. be the treatment unit of industrial extra-pure water according to the described waste water recycling of claim 1, it is characterized in that: the high desalination reverse osmosis membrane surface of adopting in the described two-pass reverse osmosis device (13) is positively charged.
5. waste water recycling according to claim 1 is the treatment unit of industrial extra-pure water, it is characterized in that: described electric deionizer (16) is the secondary electric deionizer, be provided with placed in-line first step runner and second stage runner in the device, first step runner filling Zeo-karb, second stage runner filling mixed bed ion exchange resin.
6. waste water recycling according to claim 1 is the treatment unit of industrial extra-pure water, it is characterized in that: the post active carbon adsorption unit (10) after the described absorption directly uses as preposition activated charcoal adsorption unit (5).
CN2010202125140U 2010-06-02 2010-06-02 Treating device for recycling wastewater to produce industrial ultrapure water Expired - Fee Related CN201737783U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102701488A (en) * 2012-06-25 2012-10-03 江苏京元节能环保有限公司 Reverse osmosis purified water treatment system
CN102826676A (en) * 2011-06-17 2012-12-19 南京源泉环保科技股份有限公司 Irradiation industry well-source water on-line circular processing system
CN103408152A (en) * 2013-07-24 2013-11-27 天津开发区实力技术工程有限公司 Multistage purification system of high purity water
CN107986534A (en) * 2017-12-25 2018-05-04 浙江华强环境科技有限公司 A kind of novel ultrapure water processing system
CN108328836A (en) * 2015-12-23 2018-07-27 倍杰特国际环境技术股份有限公司 A kind of water inflow control system based on high slat-containing wastewater minimizing process
CN110877942A (en) * 2019-12-31 2020-03-13 苏州伟志水处理设备有限公司 Automatic operation method of ultrapure water equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102826676A (en) * 2011-06-17 2012-12-19 南京源泉环保科技股份有限公司 Irradiation industry well-source water on-line circular processing system
CN102826676B (en) * 2011-06-17 2014-01-01 南京源泉环保科技股份有限公司 Irradiation industry well-source water on-line circular processing system
CN102701488A (en) * 2012-06-25 2012-10-03 江苏京元节能环保有限公司 Reverse osmosis purified water treatment system
CN103408152A (en) * 2013-07-24 2013-11-27 天津开发区实力技术工程有限公司 Multistage purification system of high purity water
CN108328836A (en) * 2015-12-23 2018-07-27 倍杰特国际环境技术股份有限公司 A kind of water inflow control system based on high slat-containing wastewater minimizing process
CN108328836B (en) * 2015-12-23 2020-09-15 倍杰特集团股份有限公司 Water inlet control system based on high-salt-content wastewater reduction process
CN107986534A (en) * 2017-12-25 2018-05-04 浙江华强环境科技有限公司 A kind of novel ultrapure water processing system
CN110877942A (en) * 2019-12-31 2020-03-13 苏州伟志水处理设备有限公司 Automatic operation method of ultrapure water equipment

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Termination date: 20170602