CN108623071A - A kind of processing unit and method of resin regeneration waste water - Google Patents
A kind of processing unit and method of resin regeneration waste water Download PDFInfo
- Publication number
- CN108623071A CN108623071A CN201810727939.6A CN201810727939A CN108623071A CN 108623071 A CN108623071 A CN 108623071A CN 201810727939 A CN201810727939 A CN 201810727939A CN 108623071 A CN108623071 A CN 108623071A
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- Prior art keywords
- water
- nanofiltration
- electrodialysis
- resin regeneration
- regeneration waste
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- 239000002351 wastewater Substances 0.000 title claims abstract description 52
- 230000008929 regeneration Effects 0.000 title claims abstract description 50
- 238000011069 regeneration method Methods 0.000 title claims abstract description 50
- 239000011347 resin Substances 0.000 title claims abstract description 43
- 229920005989 resin Polymers 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000001728 nano-filtration Methods 0.000 claims abstract description 68
- 238000000909 electrodialysis Methods 0.000 claims abstract description 50
- 239000013505 freshwater Substances 0.000 claims abstract description 28
- 238000001704 evaporation Methods 0.000 claims abstract description 24
- 230000008020 evaporation Effects 0.000 claims abstract description 24
- 238000003672 processing method Methods 0.000 claims abstract description 7
- 238000002425 crystallisation Methods 0.000 claims abstract description 6
- 230000008025 crystallization Effects 0.000 claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 6
- 239000013078 crystal Substances 0.000 claims abstract description 3
- 239000012528 membrane Substances 0.000 claims description 11
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical group C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000003456 ion exchange resin Substances 0.000 claims description 6
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 229910001410 inorganic ion Inorganic materials 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000004781 supercooling Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000001640 fractional crystallisation Methods 0.000 abstract description 2
- 238000005373 pervaporation Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The present invention provides a kind of processing units of resin regeneration waste water, including sequentially connected raw water tank, nanofiltration processing unit, electrodialysis process unit, evaporation process unit.The device includes the following steps the processing method of resin regeneration waste water：（a）Resin regeneration waste water enters nanofiltration processing unit from raw water tank and carries out nanofiltration processing, obtains nanofiltration concentrated water and nanofiltration fresh water, nanofiltration fresh water is discharged to the external world；（b）Nanofiltration concentrated water is entered into electrodialysis process unit and carries out electrodialysis concentration, obtains electrodialysis concentrated water and electrodialysis fresh water, electrodialysis fresh water return to step（a）It is mixed with resin regeneration waste water；（c）Electrodialysis concentrated water is entered into evaporation process unit and carries out substep evaporative crystallization, obtains steam and different crystal salts.The present invention makes final outflow water that can reduce the discharge capacity of sewage, while through pervaporation fractional crystallization, obtaining different inorganic salts with qualified discharge using the group technology of " nanofiltration+electrodialysis+evaporation ", has certain economic benefit.
Description
Technical field
The present invention relates to a kind of processing units and method of resin regeneration waste water.
Background technology
TDS (Total dissolved solids), i.e. total dissolved solidss, also known as dissolvability solid amount, units of measurement
For mg/litre (mg/L), it shows in 1 liter of water dissolved with how many milligrams of soluble solids.
Ion-exchange is widely used in preparing softened water and demineralized water at present.During ion exchange resin regeneration
A large amount of brine waste can be discharged.Ion exchange resin regeneration acidic and alkaline waste water is largely seen as a kind of waste, with water
Greatly, high organic content and the features such as be difficult to biodegradation.General wastewater treatment method such as flocculence, conventional chemical aoxidize
Method, biochemical process are difficult to prove effective to ion exchange resin regeneration acidic and alkaline waste water.Therefore, the current waste water that is treated as of such waste water is controlled
One of problem of reason.Therefore, it is effectively treated for this effluent part, enables processed waste water qualified discharge, to make
Brine waste recycling is obtained, is had a very important significance.
Invention content
The purpose of the present invention is to provide the inorganic salts that can be recycled in resin regeneration waste water, while making processed useless
Water is capable of the processing unit and method of qualified discharge.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
It is an object of the present invention to provide a kind of processing units of resin regeneration waste water, including are used to store resin regeneration
Nanofiltration processing unit that raw water tank, the water inlet of waste water are connected with the water outlet of the raw water tank, water inlet with it is described
Electrodialysis process unit, the water inlet that the concentrated water outlet of nanofiltration processing unit is connected are dense with the electrodialysis process unit
The water outlet of the evaporation process unit that water out is connected, the nanofiltration processing unit is connected with the external world, the electricity
The water outlet of electrodialysis treatment units is connected with the water inlet of the nanofiltration processing unit.
In the present invention, in order to make resin regeneration waste water enter nanofiltration processing unit from raw water tank, raw water tank with receive
It is also provided with water pump between filter processing unit.
Specifically, the nanofiltration processing unit is filtered using NF membrane, and the material of the NF membrane is polyamides
The molecular weight of amine, retention is 150-1000Da.
Preferably, the molecular cut off of the NF membrane is 150-300Da.
Specifically, the resin regeneration waste water is ion exchange resin regeneration high-salt wastewater, and TDS contents are 9000-
12000mg/L。
Preferably, the resin regeneration waste water is the acid high-salt wastewater of generation during cation resin regeneration.
It is further preferred that the soluble inorganic ion of the resin regeneration waste water includes Ca2+、Mg2+、Cl-In it is more
Kind.
Specifically, the evaporation process unit includes one or both of multiple-effect evaporation unit, MVR evaporation elements.
Specifically, the device further includes the condensing tower being connected with the gas outlet of the evaporation process unit.
Second object of the present invention is the processing method to resin regeneration waste water using device as described above, described
Method includes the following steps：
(a) the resin regeneration waste water described in enters the nanofiltration processing unit from the raw water tank and carries out nanofiltration place
Reason, obtains nanofiltration concentrated water and nanofiltration fresh water, the nanofiltration fresh water is discharged to the external world；
(b) the nanofiltration concentrated water is entered into the electrodialysis process unit and carries out electrodialysis concentration, obtain electricity
Dialysis concentrated water and electrodialysis fresh water, the electrodialysis fresh water return to step (a) are mixed with the resin regeneration waste water；
(c) the electrodialysis concentrated water is entered into the evaporation process unit and carries out substep evaporative crystallization, obtain steam
With different crystal salts.
Specifically, the nanofiltration processing operation pressure is 0.7-4.0MPa, and temperature is 20-45 DEG C.
Preferably, the nanofiltration processing operation pressure is 1.5-3.0MPa, and temperature is 34-36 DEG C.
Specifically, the TDS contents for the obtained nanofiltration concentrated water being handled by step (a) are 4.5 × 104-6×
104The TDS contents of mg/L, the nanofiltration fresh water are 150-250mg/L.
Specifically, the TDS contents for the obtained electrodialysis concentrated water being handled by step (b) are 16 × 104-20×104
The TDS contents of mg/L, the electrodialysis fresh water are 0.8 × 104-1×104mg/L。
Specifically, it is 50-60mg/L to handle obtained steam by condensed TDS contents by step (c).
Due to the implementation of above technical scheme, the present invention has the following advantages that compared with prior art：
The present invention makes final water outlet that can be reduced with qualified discharge using the group technology of " nanofiltration+electrodialysis+evaporation "
The discharge capacity of sewage, while through pervaporation fractional crystallization, different inorganic salts are obtained, there is certain economic benefit.
Description of the drawings
Attached drawing 1 is the flow diagram of the present invention；
Wherein：1, raw water tank；2, nanofiltration processing unit；3, electrodialysis process unit；4, evaporation process unit；5, water pump.
Specific implementation mode
The present invention is described in further details below in conjunction with specific embodiment.It should be understood that these embodiments are for saying
The bright basic principles, principal features and advantages of the present invention, and the present invention is not limited by the following examples.It is used in embodiment
Implementation condition can do further adjustment according to specific requirement, and the implementation condition being not specified is usually the condition in routine experiment.
A kind of processing unit of resin regeneration waste water, include for store the raw water tank 1 of resin regeneration waste water, water inlet with
Nanofiltration processing unit 2 that the water outlet of raw water tank 1 is connected, water inlet are connected with the outlet of the concentrated water of nanofiltration processing unit 2
Electrodialysis process unit 3, water inlet and electrodialysis process unit 3 concentrated water export the evaporation process unit 4 being connected, at nanofiltration
The water outlet of reason unit 2 is connected with the external world, the water inlet of the water outlet and nanofiltration processing unit 2 of electrodialysis process unit 3
The condensing tower (not shown) that mouth is connected, is connected with the gas outlet of evaporation process unit.
In order to make resin regeneration waste water enter nanofiltration processing unit 2 from raw water tank 1, raw water tank 1 and nanofiltration processing are single
It is also provided with water pump 5 between member 2.
Resin regeneration waste water is ion exchange resin regeneration high-salt wastewater, and TDS contents are 0.9 × 104-1.2×104mg/
L.Resin regeneration waste water in the present embodiment is the acid high-salt wastewater of generation during cation resin regeneration.Resin regeneration
The soluble inorganic ion of waste water includes Ca2+、Mg2+、Cl-In it is a variety of.Solubility in the present embodiment in resin regeneration waste water
Inorganic ions includes Ca2+、Mg2+、Cl-。
Nanofiltration processing unit 2 is filtered using NF membrane, and the material of NF membrane is polyamide, and the molecular weight of retention is
150-1000Da, it is preferable that the molecular cut off of NF membrane is 150-300Da.
Evaporation process unit 4 includes one or both of multiple-effect evaporation unit, MVR evaporation elements.
It is explained by taking specific embodiment as an example below.
Embodiment 1：
(a) resin regeneration waste water TDS (total dissolved solidss) content 1.0 × 104Mg/L, resin regeneration waste water is from raw water tank 1
Nanofiltration processing is carried out into nanofiltration processing unit 2, and the material of NF membrane is polyamide, and the molecular weight of retention is 150Da, at nanofiltration
The pressure 2.0MPa of reason, 35 DEG C of temperature, it is 5 × 10 to obtain TDS contents4The nanofiltration concentrated water and TDS contents of mg/L is 200 mg/L
Nanofiltration fresh water, nanofiltration fresh water are discharged to the external world；
(b) nanofiltration concentrated water is entered into electrodialysis process unit 3 and carries out electrodialysis concentration, obtained TDS contents and reach 16
× 104The electrodialysis concentrated water of mg/L is 0.8 × 10 with TDS contents4The electrodialysis fresh water of mg/L, electrodialysis fresh water return to step
(a) it is mixed with resin regeneration waste water；
(c) electrodialysis concentrated water is entered into evaporation process unit 4 and carries out substep evaporative crystallization, obtain calcium chloride product, chlorination
The TDS contents of magnesium products, steam, the condensed water that steam is condensed are 50mg/L, can direct qualified discharge.
Embodiment 2：
(a) resin regeneration waste water TDS (total dissolved solidss) content 1.2 × 104Mg/L, resin regeneration waste water is from raw water tank 1
Nanofiltration processing is carried out into nanofiltration processing unit 2, and the material of NF membrane is polyamide, and the molecular weight of retention is 150Da, at nanofiltration
The pressure 3.0MPa of reason, 35 DEG C of temperature, it is 6 × 10 to obtain TDS contents4The nanofiltration concentrated water and TDS contents of mg/L is 250 mg/L
Nanofiltration fresh water, nanofiltration fresh water are discharged to the external world；
(b) nanofiltration concentrated water is entered into electrodialysis process unit 3 and carries out electrodialysis concentration, obtained TDS contents and reach 20
×104The electrodialysis concentrated water of mg/L is 1.0 × 10 with TDS contents4The electrodialysis fresh water of mg/L, electrodialysis fresh water return to step
(a) it is mixed with resin regeneration waste water；
(c) electrodialysis concentrated water is entered into evaporation process unit 4 and carries out substep evaporative crystallization, obtain calcium chloride product, chlorination
The TDS contents of magnesium products, steam, the condensed water that steam is condensed are 60mg/L, can direct qualified discharge.
Embodiment 3：
(a) resin regeneration waste water TDS (total dissolved solidss) content 0.9 × 104Mg/L, resin regeneration waste water is from raw water tank 1
Nanofiltration processing is carried out into nanofiltration processing unit 2, and the material of NF membrane is polyamide, and the molecular weight of retention is 300Da, at nanofiltration
The pressure 1.5MPa of reason, 35 DEG C of temperature, it is 4.5 × 10 to obtain TDS contents4The nanofiltration concentrated water and TDS contents of mg/L is 150mg/
L nanofiltration fresh water, nanofiltration fresh water are discharged to the external world；
(b) nanofiltration concentrated water is entered into electrodialysis process unit 3 and carries out electrodialysis concentration, obtained TDS contents and reach 18
×104The electrodialysis concentrated water of mg/L is 0.9 × 10 with TDS contents4The electrodialysis fresh water of mg/L, electrodialysis fresh water return to step
(a) it is mixed with resin regeneration waste water；
(c) electrodialysis concentrated water is entered into evaporation process unit 4 and carries out substep evaporative crystallization, obtain calcium chloride product, chlorination
The TDS contents of magnesium products, steam, the condensed water that steam is condensed are 50mg/L, can direct qualified discharge.
Comparative example：
Resin regeneration waste water TDS (total dissolved solidss) content 1.0 × 104Mg/L adds alkali into resin regeneration waste water, obtains
The precipitation of calcium hydroxide and magnesium hydroxide, then filter residue is obtained by plate compression.Since filter residue is calcium hydroxide and magnesium hydroxide
The mixing of precipitation can only be used as dangerous waste or solid waste to be handled, pollute environment；Meanwhile the TDS contents of filtrate are 2000mg/L,
It is unable to qualified discharge.
The present invention includes but not limited to above example, and those skilled in the art can become in the claims in the present invention
Get more embodiments in return.
Claims (10)
1. a kind of processing unit of resin regeneration waste water, it is characterised in that：It include the raw water tank for storing resin regeneration waste water
（1）, water inlet and the raw water tank（1）The nanofiltration processing unit that is connected of water outlet（2）, water inlet and the nanofiltration
Processing unit（2）Concentrated water export the electrodialysis process unit that is connected（3）, water inlet and the electrodialysis process unit
（3）Concentrated water export the evaporation process unit that is connected（4）, the nanofiltration processing unit（2）Water outlet and extraneous phase
Connection, the electrodialysis process unit（3）Water outlet and the nanofiltration processing unit（2）Water inlet be connected.
2. the apparatus according to claim 1, it is characterised in that：The nanofiltration processing unit（2）It is carried out using NF membrane
The material of filtering, the NF membrane is polyamide, and the molecular weight of retention is 150-1000Da.
3. the apparatus according to claim 1, it is characterised in that：The resin regeneration waste water is ion exchange resin regeneration
High-salt wastewater, TDS contents are 0.9 × 104-1.2×104mg/L。
4. device according to claim 3, it is characterised in that：The soluble inorganic ion packet of the resin regeneration waste water
Include Ca2+、Mg2+、Cl-In it is a variety of.
5. the apparatus according to claim 1, it is characterised in that：The evaporation process unit（4）Including multiple-effect evaporation list
One or both of member, MVR evaporation elements.
6. using the device as described in any in claim 1-5 to the processing method of resin regeneration waste water, it is characterised in that：Institute
The method stated includes the following steps：
（a）The resin regeneration waste water is from the raw water tank（1）Into the nanofiltration processing unit（2）It carries out at nanofiltration
Reason, obtains nanofiltration concentrated water and nanofiltration fresh water, the nanofiltration fresh water is discharged to the external world；
（b）The nanofiltration concentrated water is entered into the electrodialysis process unit（3）Electrodialysis concentration is carried out, electric osmose is obtained
Analyse concentrated water and electrodialysis fresh water, the electrodialysis fresh water return to step（a）It is mixed with the resin regeneration waste water；
（c）The electrodialysis concentrated water is entered into the evaporation process unit（4）Carry out substep evaporative crystallization, obtain steam and
Different crystal salts.
7. processing method according to claim 5, it is characterised in that：The nanofiltration processing operation pressure is 0.7-
4.0MPa, temperature are 20-45 DEG C.
8. processing method according to claim 5, it is characterised in that：By step（a）Handle the obtained nanofiltration
The TDS contents of concentrated water are 4.5 × 104-6×104The TDS contents of mg/L, the nanofiltration fresh water are 150-250 mg/L.
9. processing method according to claim 5, it is characterised in that：By step（b）Handle the obtained electric osmose
The TDS contents for analysing concentrated water are 16 × 104-20×104The TDS contents of mg/L, the electrodialysis fresh water are 0.8 × 104-1×
104 mg/L。
10. processing method according to claim 5, it is characterised in that：By step（c）Obtained steam is handled through supercooling
TDS contents after solidifying are 50-60 mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727939.6A CN108623071A (en) | 2018-07-05 | 2018-07-05 | A kind of processing unit and method of resin regeneration waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727939.6A CN108623071A (en) | 2018-07-05 | 2018-07-05 | A kind of processing unit and method of resin regeneration waste water |
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| Publication Number | Publication Date |
|---|---|
| CN108623071A true CN108623071A (en) | 2018-10-09 |
Family
ID=63689695
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| CN201810727939.6A Withdrawn CN108623071A (en) | 2018-07-05 | 2018-07-05 | A kind of processing unit and method of resin regeneration waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336308A (en) * | 2018-11-30 | 2019-02-15 | 佛山市云米电器科技有限公司 | A kind of circulating household water purifier and domestic water purifying machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508602A (en) * | 2013-07-23 | 2014-01-15 | 南京九思高科技有限公司 | Membrane and evaporative crystallization integrated high-salinity industrial wastewater zero-discharge process |
| CN104743717A (en) * | 2015-03-11 | 2015-07-01 | 英诺伟霆（北京）环保技术有限公司 | Method and system for reduction of concentrated brine |
| CN106396234A (en) * | 2016-11-25 | 2017-02-15 | 洁海瑞泉膜技术（天津）有限公司 | Zero-discharge treatment method for reverse osmosis concentrated water |
| CN208429992U (en) * | 2018-07-05 | 2019-01-25 | 苏州聚微环保科技有限公司 | A kind of processing unit of resin regeneration waste water |
-
2018
- 2018-07-05 CN CN201810727939.6A patent/CN108623071A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508602A (en) * | 2013-07-23 | 2014-01-15 | 南京九思高科技有限公司 | Membrane and evaporative crystallization integrated high-salinity industrial wastewater zero-discharge process |
| CN104743717A (en) * | 2015-03-11 | 2015-07-01 | 英诺伟霆（北京）环保技术有限公司 | Method and system for reduction of concentrated brine |
| CN106396234A (en) * | 2016-11-25 | 2017-02-15 | 洁海瑞泉膜技术（天津）有限公司 | Zero-discharge treatment method for reverse osmosis concentrated water |
| CN208429992U (en) * | 2018-07-05 | 2019-01-25 | 苏州聚微环保科技有限公司 | A kind of processing unit of resin regeneration waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336308A (en) * | 2018-11-30 | 2019-02-15 | 佛山市云米电器科技有限公司 | A kind of circulating household water purifier and domestic water purifying machine |
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