CN208022827U - Treated sewage reusing processing unit - Google Patents

Treated sewage reusing processing unit Download PDF

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Publication number
CN208022827U
CN208022827U CN201721919316.6U CN201721919316U CN208022827U CN 208022827 U CN208022827 U CN 208022827U CN 201721919316 U CN201721919316 U CN 201721919316U CN 208022827 U CN208022827 U CN 208022827U
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China
Prior art keywords
reverse osmosis
unit
processing unit
treated sewage
sewage reusing
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CN201721919316.6U
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Chinese (zh)
Inventor
周晓光
黄幸
刘立平
王绍龙
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ZHEJIANG HUANYAO ENVIRONMENTAL CONSTRUCTION Co Ltd
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ZHEJIANG HUANYAO ENVIRONMENTAL CONSTRUCTION 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Abstract

The utility model is related to technology of middle water recycle fields, disclose Treated sewage reusing processing unit, including middle pond (1), pretreatment unit, electric adsorption device (4), counter-infiltration system, ion exchange system, device for adding scale (6), reducing agent doser (7) and reuse pool (9), wherein, pretreatment unit includes the coagulative precipitation device (14) of connection, ceramic filtration device (2) and active carbon filter (3), counter-infiltration system includes the reverse osmosis unit (5) for passing sequentially through pipeline connection, degassing pump (8) and film process area collecting-tank (10), reverse osmosis unit (5) is communicated with device for adding scale (6) and reducing agent doser (7), ion exchange system includes the ion interchange unit (11) being connected to by pipeline and water purifying tank (12).The utility model is connected using a variety of desalination technologies, is a kind of environmentally friendly Treated sewage reusing processing unit, and desalting efficiency is more than 98%.

Description

Treated sewage reusing processing unit
Technical field
The utility model is related to technology of middle water recycle fields, more particularly to Treated sewage reusing processing unit.
Background technology
" middle water " is for upper water (water supply) He Xiashui (draining).Treated sewage reusing is exactly city domestic sewage Or trade effluent is handled by deep technical, is removed various impurity, is removed the poisonous and harmful substances of polluted-water and certain huge sum of moneys Belong to ion, and then sterilization, water body is colourless, tasteless, water quality is as clear as crystal, and reaches or be better than the miscellaneous water of national regulation Standard (or relevant regulations), the technology are a kind of important methods that sewage recycling recycles, and can both increase can utilize water Resource, and the waste with water resource that can reduce environmental pollution are widely used in enterprise's production or resident living.
Utility model content
The utility model is removed for water in " ultrafiltration+reverse osmosis " series connection processing, the impurity of middle water is commonly used in the prior art The shortcomings that single effect, provides Treated sewage reusing processing unit.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:
Treated sewage reusing processing unit, including middle pond, pretreatment unit, electric adsorption device, counter-infiltration system, ion exchange System, device for adding scale, reducing agent doser and reuse pool, wherein pretreatment unit include connection coagulative precipitation device, Ceramic filtration device and active carbon filter, middle pond are connected to coagulative precipitation device, and active carbon filter connects with electric adsorption device Logical, counter-infiltration system includes the reverse osmosis unit for passing sequentially through pipeline connection, degassing pump and film process area collecting-tank, reverse osmosis dress It is additionally provided with back purge system and sludge pipe in setting, electric adsorption device is connected to reverse osmosis unit, and reverse osmosis unit is communicated with scale removal Doser and reducing agent doser, degassing pump be also connected to reuse pool, ion exchange system include by pipeline be connected to from Sub- switch and water purifying tank, ion interchange unit are connected to film process area collecting-tank.
The larger substance of the grain sizes such as bacterium algae, suspended matter during ceramic filtration device can remove in water;Active carbon filter can With substances such as COD, cyanogen in water in removing.Electrochemical theory is combined by electric adsorption device with adsorption separation technology, utilizes band The electrochemical properties of electric electrode surface are come the purpose of realizing the removal of charged particle in water, the decomposition of organic matter, as electrode is inhaled Subsidiary charged particle increases, and charged particle is enriched in electrode surface and concentrates, to make dissolved salts in water, colloidal solid and its Charge species are trapped in electrode surface, and the final separation for realizing salt and water obtains fresh water, can be used for the desalination of water, go it is hard and light Change and heavy metal containing wastewater treatment etc..
Reverse osmosis unit can only cannot penetrate the selective penetrated property of solute using reverse osmosis membrane by water, in brackish water one Side presses, and using pressure as motive force, prevents the inorganic salt molecule of the larger organic molecule and dissolving of molecular weight from passing through reverse osmosis Film, the technology that water is detached from brackish water, back purge system provided therewith can remove remaining organic matter on reverse osmosis membrane Molecule and inorganic salt molecule reduce the maintenance cost of reverse osmosis unit, improve separative efficiency.
The middle water handled through electric adsorption device and reverse osmosis unit can improve water outlet after ion exchange system is handled Water quality, while the usage amount of the acid-base solution needed for regenerant ions exchange system can also be reduced.
Preferably, pretreatment unit further includes ozone generator, ozone generator is connected to active carbon filter, ozone With strong oxidizing property, it is passed through ozone in active carbon filter, can both be reacted with the organic matter in water, so that organic matter exists It is removed in subsequent technique, and activated carbon intensifying regenerating can be made, improved filter efficiency, extend the service life of activated carbon.
Preferably, electric adsorption device is active carbon-titanium dioxide electrode electric adsorption device.
Preferably, further including flocculant doser, flocculant doser is connected to coagulative precipitation device.
Preferably, coagulative precipitation device is also connected to sludge pipe.
Reducing agent is sodium hydrogensulfite, both can be used for the sterilization processing of fresh water in reverse osmosis unit, can be also used for disappearing Except the oxidizing substance of pre-treatment remnants, reverse osmosis unit is not resistant to oxidant, can be caused to lose except salt functional by oxidation.
Flocculant is aluminium polychloride.
Scale remover is acetic acid, citric acid or sodium citrate, for removing the dirt generated in reverse osmosis unit.
The utility model has significant technique effect as a result of above technical scheme:The utility model utilizes more Kind desalination technology series connection, electric adsorption device is higher to the pretreated efficiency of desalination, while energy consumption consumption is few, is convenient for operation and maintenance, Pretreated fresh water, which enters reverse osmosis unit, can reduce reverse osmosis required pressure, improve the safety of the device, simultaneously Through reverse osmosis unit, treated that demineralized water can be selected according to different requirements, can also continue to utilize ion interchange unit Water purification is obtained, the soda acid usage amount needed for activating and regenerating ion interchange unit is reduced.Therefore, at the Treated sewage reusing of the utility model It is a kind of environmentally friendly Treated sewage reusing processing unit to manage device, and the removal efficiency of centering impurities in water is higher, desalting efficiency More than 98%.
Description of the drawings
Fig. 1 is the Treated sewage reusing processing unit block schematic illustration of the utility model.
The toponym that each number designation is referred in attached drawing is as follows:1-middle pond, 2-ceramic filtration devices, 3-activity Carbon filter, 4-electric adsorption devices, 5-reverse osmosis units, 6-device for adding scale, 7-reducing agent dosers, 8-degassing pump, 9-reuse pools, 10-film process area collecting-tanks, 11-ion interchange units, 12-water purifying tanks, 13-ozone generators, 14-coagulative precipitation devices, 15-flocculant dosers.
Specific implementation mode
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Treated sewage reusing processing unit, as shown in Figure 1, including middle pond 1, pretreatment unit, electric adsorption device 4, reverse osmosis System, ion exchange system, device for adding scale 6, reducing agent doser 7 and reuse pool 9, wherein pretreatment unit includes connecting Logical coagulative precipitation device 14, ceramic filtration device 2 and active carbon filter 3, middle pond 1 are connected to coagulative precipitation device 14, living Property carbon filter 3 be connected to electric adsorption device 4, counter-infiltration system include pass sequentially through pipeline connection reverse osmosis unit 5, degassing Pump 8 and film process area collecting-tank 10, is additionally provided with back purge system and sludge pipe in reverse osmosis unit 5, electric adsorption device 4 with it is anti- Permeability apparatus 5 is connected to, and reverse osmosis unit 5 is communicated with device for adding scale 6 and reducing agent doser 7, and degassing pump 8 is gone back and recycle-water Pond 9 is connected to, and ion exchange system includes the ion interchange unit 11 being connected to by pipeline and water purifying tank 12, ion interchange unit 11 It is connected to film process area collecting-tank 10.
Pretreatment unit further includes ozone generator 13, and ozone generator 13 is connected to active carbon filter 3.
Electric adsorption device 4 is active carbon-titanium dioxide electrode electric adsorption device.
Further include flocculant doser 15, flocculant doser 15 is connected to coagulative precipitation device 14.
Coagulative precipitation device 14 is also connected to sludge pipe.
Flocculant is aluminium polychloride, dosage 30mg/L.
Reducing agent is sodium hydrogensulfite, dosage 50mg/L.
Scale remover is acetic acid, dosage 25mg/L.
Embodiment 2
With embodiment 1, except that scale remover is citric acid, dosage 20mg/L.
Embodiment 3
With embodiment 2, except that scale remover is sodium citrate, dosage 15mg/L.
Embodiment 4
It applies in the Treated sewage reusing processing unit of example 1 and the processing applied to industrial cyanogens-containing sewage water.Industrial cyanogens-containing sewage water turbidity It is higher, further include the larger substance of the grain sizes such as bacterium algae, colloid, suspended matter in addition to cyanogen, further includes ammonia nitrogen, CODcrWith various salt Ion.
Before industrial cyanogens-containing sewage water enters the Treated sewage reusing processing unit of embodiment 1, concentration of suspension 200mg/L, CODcrA concentration of 135mg/L, cyanogen a concentration of 10mg/L, ammonia-nitrogen content 15mg/L, salt content 4537mg/L.
Industrial cyanogens-containing sewage water enters the treatment process of the Treated sewage reusing processing unit of embodiment 1, including following steps:
(1) the middle water in pond 1 enters in coagulative precipitation device 14, and flocculant is added by coagulant doser 15, Then hydraulic retention 3h after the filtering of ceramic filtration device 2, filters using active carbon filter 3, obtains intermediate water;
(2) intermediate water is handled through electric adsorption device 4, obtains fresh water;
(3) reducing agent and scale remover are added in reverse osmosis unit 5, and fresh water handles through reverse osmosis unit 5 and obtains demineralized water, After degassed 8 removing of pump of demineralized water is dissolved in the gas in demineralized water, demineralized water total volume is accounted for than being discharged into for 30% demineralized water Reuse pool 9, remaining to be discharged into film process area collecting-tank 10, the impurity in reverse osmosis unit 5 passes through spoil disposal through back purge system Reverse osmosis unit 5 is discharged in pipe;
(4) demineralized water of film process area collecting-tank 10 enters ion interchange unit 11, obtains water purification after processing, is discharged into net Pond 12.
After processing unit processing, it can be found that:
Ceramic filtration device eliminates the larger substance of the grain sizes such as bacterium algae, colloid, suspended matter in industrial cyanogens-containing sewage water, then passes through After active carbon filter, concentration of suspension is reduced to 16mg/L;Water during the effect of active carbon filter and ozone can remove In CODcr, cyanogen, the substances such as ammonia nitrogen, CODcrConcentration is reduced to 58mg/L, cyanogen concentration to be reduced to 0.3mg/L, and ammonia-nitrogen content is not examined Go out;
Electro Sorb technology realizes the removal of charged particle, organic matter in water using the electrochemical properties on charged electrode surface Decomposition the purpose of, with increasing for electrode adsorption charged particle, charged particle is enriched in electrode surface and concentrates, to make in water Dissolved salts, colloid and its charge species be trapped in electrode surface, the final separation for realizing salt and water, the fresh water of acquisition it is turbid Degree is 0.2NTU, salt content 1120.6mg/L;
Reverse osmosis unit can only cannot penetrate the selective penetrated property of solute using reverse osmosis membrane by water, in brackish water one Side presses, and using pressure as motive force, prevents the inorganic salt molecule of the larger organic molecule and dissolving of molecular weight from passing through reverse osmosis Film, after the step, the salt content of the sewage is 236.2mg/L;
Degassing pump can reduce the content of the dissolved gas in the sewage, and degassing rate is 87%;
Most afterwards after ion-exchange treatment, the salt content of the sewage is 67.3mg/L, and the desalination rate of the present embodiment is 98.5%.
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the claims institute The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.

Claims (5)

1. Treated sewage reusing processing unit, it is characterised in that:Including middle pond (1), pretreatment unit, electric adsorption device (4), reverse osmosis Permeable system, ion exchange system, device for adding scale (6), reducing agent doser (7) and reuse pool (9), wherein pretreatment dress Coagulative precipitation device (14), ceramic filtration device (2) and active carbon filter (3) including connection are set, middle pond (1) is heavy with coagulation Shallow lake device (14) is connected to, and active carbon filter (3) is connected to electric adsorption device (4), and counter-infiltration system includes passing sequentially through pipeline Reverse osmosis unit (5), degassing pump (8) and the film process area collecting-tank (10) of connection, reverse osmosis unit (5) is interior to be additionally provided with backwash Device and sludge pipe, electric adsorption device (4) are connected to reverse osmosis unit (5), and reverse osmosis unit (5) is communicated with device for adding scale (6) it is also connected to reuse pool (9) with reducing agent doser (7), degassing pump (8), ion exchange system includes being connected by pipeline Logical ion interchange unit (11) and water purifying tank (12), ion interchange unit (11) are connected to film process area collecting-tank (10).
2. Treated sewage reusing processing unit according to claim 1, it is characterised in that:Pretreatment unit further includes ozone Device (13), ozone generator (13) are connected to active carbon filter (3).
3. Treated sewage reusing processing unit according to claim 1, it is characterised in that:Electric adsorption device (4) is activated carbon-two Titanium oxide electrode electric adsorption device.
4. Treated sewage reusing processing unit according to claim 1, it is characterised in that:Further include flocculant doser (15), Flocculant doser (15) is connected to coagulative precipitation device (14).
5. Treated sewage reusing processing unit according to claim 1, it is characterised in that:Coagulative precipitation device (14) is gone back and spoil disposal Pipe is connected to.
CN201721919316.6U 2017-12-29 2017-12-29 Treated sewage reusing processing unit Active CN208022827U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721919316.6U CN208022827U (en) 2017-12-29 2017-12-29 Treated sewage reusing processing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721919316.6U CN208022827U (en) 2017-12-29 2017-12-29 Treated sewage reusing processing unit

Publications (1)

Publication Number Publication Date
CN208022827U true CN208022827U (en) 2018-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721919316.6U Active CN208022827U (en) 2017-12-29 2017-12-29 Treated sewage reusing processing unit

Country Status (1)

Country Link
CN (1) CN208022827U (en)

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Address after: 12 / F, building 1, 329 Shangtang Road, Gongshu District, Hangzhou, Zhejiang 310000

Patentee after: ZHEJIANG HUANYAO ENVIRONMENTAL CONSTRUCTION Co.,Ltd.

Address before: 310000 4th floor, complex building, Tuofeng Science Park, No. 48, Huanggushan Road, Xihu District, Hangzhou, Zhejiang

Patentee before: ZHEJIANG HUANYAO ENVIRONMENTAL CONSTRUCTION Co.,Ltd.