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CN106927604A - Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit - Google Patents

Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit Download PDF

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Publication number
CN106927604A
CN106927604A CN201710345243.2A CN201710345243A CN106927604A CN 106927604 A CN106927604 A CN 106927604A CN 201710345243 A CN201710345243 A CN 201710345243A CN 106927604 A CN106927604 A CN 106927604A
Authority
CN
China
Prior art keywords
sodium
salt wastewater
processing unit
discharge processing
zero discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710345243.2A
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Chinese (zh)
Inventor
慕史臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZIBO GERUI WATER TREATMENT ENGINEERING Co Ltd
Original Assignee
ZIBO GERUI WATER TREATMENT ENGINEERING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZIBO GERUI WATER TREATMENT ENGINEERING Co Ltd filed Critical ZIBO GERUI WATER TREATMENT ENGINEERING Co Ltd
Priority to CN201710345243.2A priority Critical patent/CN106927604A/en
Publication of CN106927604A publication Critical patent/CN106927604A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00Halides of sodium, potassium or alkali metals in general
    • C01D3/04Chlorides
    • C01D3/06Preparation by working up brines; seawater or spent lyes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a kind of sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit, it is related to high-salt wastewater processing technology field, solves the technical problem that high-salt wastewater recovery difficult is big, recovering effect is poor produced in resin regeneration process present in prior art.Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit of the invention includes passing sequentially through waste water tank, regenerative agent conversion unit and the concentration reuse unit of pipeline connection, mouth and liquid caustic soda is added to add mouth by setting sodium carbonate on regenerative agent conversion unit, you can to successively introducing OH in sodium bed regeneration liquid wasteAnd CO3 2‑Ion, makes the divalent ion Ca in waste liquid2+、Mg2+Form aggregate, you can the divalent ion in removal sodium bed regeneration liquid waste, remaining sodium chloride solution is concentrated, continues resin regeneration, realizes the recycling of regeneration effluent brine, realize the zero-emission of sodium bed regeneration liquid waste and recycle.

Description

Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit
Technical field
The present invention relates to high-salt wastewater processing technology field, a kind of particularly sodium bed regeneration high-salt wastewater resource zero Discharging processing device.
Background technology
Sodium bed regenerative wastewater refer to:During sodium ionomer resin swap tank soft water preparation, produced when sodium form positive resin regenerates Raw waste water.When softened water is prepared, while resin constantly exchanges calcium, magnesium cation, gradually tend to saturation, when resin saturation When just lose water-making ability, at this moment resin is regenerated with sodium chloride brine, and sodium ion displaces calcium, magnesium ion, resin regeneration The a large amount of high-salt wastewaters of Cheng Zhongyou produce (mainly calcium, magnesium and chlorion), these waste water containing salt ion, if by its direct row Put, it will environmental pollution, and waste a large amount of water sources;If reclaimed, technical difficulty is very big, is not molded also in the prior art Process the processing unit of sodium form resin regeneration waste water.
The content of the invention
The present invention provides a kind of sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit, for solving in the prior art The technical problem that high-salt wastewater recovery difficult is big, recovering effect is poor produced in the resin regeneration process of presence.
The present invention provides a kind of sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit, including passes sequentially through pipeline company Waste water tank, regenerative agent conversion unit and the concentration reuse unit for connecing, sodium carbonate is provided with the regenerative agent conversion unit Mouth and liquid caustic soda is added to add mouth.
In one embodiment, the regenerative agent conversion unit includes mixing reactor, the sodium carbonate add mouth and The liquid caustic soda adds mouth to be respectively positioned on the top of the mixing reactor, and the mixing reactor is internally provided with agitator.
In one embodiment, the regenerative agent conversion unit also includes plate and frame filter press, the plate and frame filter press point It is not connected with the mixing reactor and the concentration reuse unit, solid precipitation is provided with the plate and frame filter press Mouthful.
In one embodiment, it is in series with screw rod on the pipeline between the mixing reactor and the plate and frame filter press Pump.
In one embodiment, it is in series with pipeline on the pipeline between the waste water tank and the regenerative agent conversion unit Blender, dosing mouth is provided with the pipe-line mixer.
In one embodiment, the concentration reuse unit includes concentration membrane stack, on the concentration membrane stack respectively Fresh water output end and strong brine output end be set, the fresh water output end and sodium chloride strong brine output end respectively with the fresh water Case is connected with strong brine case.
In one embodiment, connected on the pipeline being connected between the concentration membrane stack and the regenerative agent conversion unit There are booster pump and micro-filtration.
Compared with prior art, the advantage of the invention is that:
(1) mouth and liquid caustic soda is added to add mouth by setting sodium carbonate on regenerative agent conversion unit, you can be regenerated to sodium bed OH- and CO is successively introduced in waste liquid3 2-Ion, makes the divalent ion Ca in waste liquid2+、Mg2+Form aggregate, you can removal sodium bed Divalent ion in regeneration liquid waste, realizes the process continuous of abraum salt water process, and realizes the zero-emission of sodium bed regeneration liquid waste And cyclic regeneration.
(2) Ca is eliminated2+、Mg2+Waste water by after concentration reuse unit, further separating concentration, obtain Fresh water may be recovered utilization, the sodium chloride strong brine of acquisition can be used as regenerated liquid and use, therefore to the concentration point of waste water From treatment more thoroughly, utilization rate is higher.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is the schematic diagram of the sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit in embodiments of the invention.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Reference:
1- waste water tanks;2- regenerative agents convert list 3- concentration reuse lists
4- pipe-line mixers;5- fresh-water tanks;6- strong brine casees;
7- booster pumps;8- micro-filtrations;21- sodium carbonate adds mouth;
22- liquid caustic soda adds mouth;23- mixing reactors;24- agitators;
25- plate and frame filter press;26- screw pumps;31- concentrates membrane stack;
41- dosing mouths;251- solids separate out 311- fresh water output ends;
312- sodium chloride strong brine output ends.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is that a kind of structure of sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit in the embodiment of the present invention is shown It is intended to;As shown in figure 1, the present invention provides a kind of sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit, pipe is passed sequentially through Waste water tank 1, regenerative agent conversion unit 2 and concentration reuse unit 3 that road connects, carbon is provided with regenerative agent conversion unit 2 Sour sodium adds mouth 21 and liquid caustic soda to add mouth 22.Wherein, it is sodium hydroxide solution that liquid caustic soda adds the liquid caustic soda added in mouth 22.
Add mouth 21 and liquid caustic soda to add mouth 22 by setting sodium carbonate on regenerative agent conversion unit 2, you can to sodium bed again OH is successively introduced in raw waste liquid-And CO3 2-Ion, makes the divalent ion Ca in waste liquid2+、Mg2+Form aggregate, you can removal sodium Divalent ion in bed regeneration liquid waste, realizes the process continuous of abraum salt water process, and realizes the zero-emission of sodium bed regeneration liquid waste Put and cyclic regeneration.
In one embodiment, regenerative agent conversion unit 2 includes mixing reactor 23, and sodium carbonate adds mouth 21 and liquid caustic soda to add Entrance 22 is respectively positioned on the top of mixing reactor 23, and mixing reactor 23 is internally provided with agitator 24.Agitator 24 can Liquid agitation in mixing reactor 23 is uniform, waste liquid is fully contacted and is reacted with sodium carbonate and liquid caustic soda.
Specifically, the equation for being reacted in mixing reactor 23 is:
CaCl2+MgCl2+Na2CO3+ 2NaOH=CaCO3↓+Mg(OH)2↓+4NaCl
In the present embodiment, regenerative agent conversion unit 2 also include plate and frame filter press 25, plate and frame filter press 25 respectively with mix Reactor 23 is connected with concentration reuse unit 3, solid is provided with plate and frame filter press 25 and separates out mouth 26.
In the present embodiment, it is in series with screw pump 26 on the pipeline between mixing reactor 23 and plate and frame filter press 25.
Turbid solution after being reacted in mixing reactor 23 is input in plate and frame filter press 25 by screw pump 26, is led to Cross the press filtration of plate and frame filter press 25 carries out separation of solid and liquid by turbid solution, makes the solids of sedimentation such as calcium carbonate and magnesium hydroxide in turbid solution Emitted from solid precipitation mouth 26 in the form of filter residue, and the press filtration clear liquid isolated is input into concentration by clear liquid pipeline It is further processed in treatment for reuse unit 3.
In the present embodiment, pipe-line mixer 4 is in series with the pipeline between waste water tank 1 and regenerative agent conversion unit 2, is managed Dosing mouth 41 is provided with road blender 4.By dosing mouth 41 to poly-aluminium (PAC) is added in pipe-line mixer 4, it is to high concentrtion The purified treatment effect of water and low temperature and low turbidity water is particularly evident, can be not added with alkaline assistant or other flocculation aids.
In one embodiment, concentration reuse unit 3 includes concentration membrane stack 31, is respectively provided with concentration membrane stack 31 light Water output end 311 and strong brine output end 312, fresh water output end 311 and sodium chloride strong brine output end 312 respectively with fresh-water tank 5 are connected with strong brine case 6.Wherein, concentration membrane stack 31 can select electrodialysis membrane stack.
In one embodiment, supercharging is in series with the pipeline being connected between concentration membrane stack 31 and regenerative agent conversion unit 2 Pump 7 and micro-filtration 8.Before micro-filtration 8 can carry out Ion transfer concentration in concentration reuse unit 3, to raw water Filtration treatment is carried out, is prevented impurity from entering and is caused ionic membrane dirty stifled in concentration membrane stack 31.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.

Claims (7)

1. a kind of sodium bed regenerates high-salt wastewater recycling and zero discharge processing unit, it is characterised in that connect including passing sequentially through pipeline Waste water tank (1), regenerative agent conversion unit (2) and concentration reuse unit (3) for connecing, on the regenerative agent conversion unit (2) Being provided with sodium carbonate adds mouth (21) and liquid caustic soda to add mouth (22).
2. sodium bed according to claim 1 regenerates high-salt wastewater recycling and zero discharge processing unit, it is characterised in that described Regenerative agent conversion unit (2) includes mixing reactor (23), and the sodium carbonate adds mouth (21) and the liquid caustic soda to add mouth (22) It is respectively positioned on the top of the mixing reactor (23), the mixing reactor (23) is internally provided with agitator (24).
3. sodium bed according to claim 2 regenerates high-salt wastewater recycling and zero discharge processing unit, it is characterised in that described Regenerative agent conversion unit (2) also include plate and frame filter press (25), the plate and frame filter press (25) respectively with the mixing reactor (23) it is connected with the concentration reuse unit (3), solid is provided with the plate and frame filter press (25) and separates out mouth (251).
4. sodium bed according to claim 3 regenerates high-salt wastewater recycling and zero discharge processing unit, it is characterised in that described Screw pump (26) is in series with pipeline between mixing reactor (23) and the plate and frame filter press (25).
5. the sodium bed according to any one in claim 2-4 regenerates high-salt wastewater recycling and zero discharge processing unit, its It is characterised by, pipe-line mixer (4) is in series with the pipeline between the waste water tank (1) and the regenerative agent conversion unit (2), Dosing mouth (41) is provided with the pipe-line mixer (4).
6. the sodium bed according to any one in claim 1-4 regenerates high-salt wastewater recycling and zero discharge processing unit, its It is characterised by, the concentration reuse unit (3) includes concentration membrane stack (31), is respectively provided with concentration membrane stack (31) light Water output end (311) and strong brine output end (312), the fresh water output end (311) and sodium chloride strong brine output end (312) It is connected with the fresh-water tank (5) and strong brine case (6) respectively.
7. sodium bed according to claim 6 regenerates high-salt wastewater recycling and zero discharge processing unit, it is characterised in that described Booster pump (7) and micro-filtration are in series with the pipeline being connected between concentration membrane stack (31) and the regenerative agent conversion unit (2) (8)。
CN201710345243.2A 2017-05-16 2017-05-16 Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit Pending CN106927604A (en)

Priority Applications (1)

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CN201710345243.2A CN106927604A (en) 2017-05-16 2017-05-16 Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit

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Application Number Priority Date Filing Date Title
CN201710345243.2A CN106927604A (en) 2017-05-16 2017-05-16 Sodium bed regeneration high-salt wastewater recycling and zero discharge processing unit

Publications (1)

Publication Number Publication Date
CN106927604A true CN106927604A (en) 2017-07-07

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207397A (en) * 1978-09-15 1980-06-10 Water Refining Company, Inc. Method for recovering and treating brine from water softener regeneration
US20110077144A1 (en) * 2006-07-14 2011-03-31 Rayne Dealership Corporation Regeneration of ion exchange resin and recovery of regenerant solution
CN103319042A (en) * 2013-07-16 2013-09-25 北京倍杰特国际环境技术有限公司 High-salt complex wastewater reuse and zero discharge integrated equipment and technology
CN104478133A (en) * 2014-09-05 2015-04-01 陕西省石油化工研究设计院 Method and system for recycling regenerated waste liquid of sodium bed
CN104628186A (en) * 2015-01-30 2015-05-20 西安聚方环境科技有限公司 Method for treating sodium ion exchanger regenerated waste liquor in wastewater zero emission process and recycling system
CN105540974A (en) * 2015-12-25 2016-05-04 东华工程科技股份有限公司 Processing method of high-hardness wastewater generated by ion exchange regeneration in high-concentration salt water treatment system
CN105858981A (en) * 2016-04-06 2016-08-17 北京高能时代环境技术股份有限公司 Quality-divided reclamation treatment device and process for strong brine
JP2016198747A (en) * 2015-04-14 2016-12-01 王子ホールディングス株式会社 Method for regenerating ion exchange resin, method for treating paper mill waste water, apparatus for regenerating ion exchange resin and apparatus for treating paper mill waste water
CN106396210A (en) * 2016-12-06 2017-02-15 淄博格瑞水处理工程有限公司 Anion/cation resin regeneration wastewater zero-discharge recycling device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207397A (en) * 1978-09-15 1980-06-10 Water Refining Company, Inc. Method for recovering and treating brine from water softener regeneration
US20110077144A1 (en) * 2006-07-14 2011-03-31 Rayne Dealership Corporation Regeneration of ion exchange resin and recovery of regenerant solution
CN103319042A (en) * 2013-07-16 2013-09-25 北京倍杰特国际环境技术有限公司 High-salt complex wastewater reuse and zero discharge integrated equipment and technology
CN104478133A (en) * 2014-09-05 2015-04-01 陕西省石油化工研究设计院 Method and system for recycling regenerated waste liquid of sodium bed
CN104628186A (en) * 2015-01-30 2015-05-20 西安聚方环境科技有限公司 Method for treating sodium ion exchanger regenerated waste liquor in wastewater zero emission process and recycling system
JP2016198747A (en) * 2015-04-14 2016-12-01 王子ホールディングス株式会社 Method for regenerating ion exchange resin, method for treating paper mill waste water, apparatus for regenerating ion exchange resin and apparatus for treating paper mill waste water
CN105540974A (en) * 2015-12-25 2016-05-04 东华工程科技股份有限公司 Processing method of high-hardness wastewater generated by ion exchange regeneration in high-concentration salt water treatment system
CN105858981A (en) * 2016-04-06 2016-08-17 北京高能时代环境技术股份有限公司 Quality-divided reclamation treatment device and process for strong brine
CN106396210A (en) * 2016-12-06 2017-02-15 淄博格瑞水处理工程有限公司 Anion/cation resin regeneration wastewater zero-discharge recycling device

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Application publication date: 20170707

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