CN104230065A - Treating method and system of high-concentration salt waste water on photosensitizer production alkaline hydrolysis section - Google Patents
Treating method and system of high-concentration salt waste water on photosensitizer production alkaline hydrolysis section Download PDFInfo
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- CN104230065A CN104230065A CN201410523479.7A CN201410523479A CN104230065A CN 104230065 A CN104230065 A CN 104230065A CN 201410523479 A CN201410523479 A CN 201410523479A CN 104230065 A CN104230065 A CN 104230065A
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Abstract
The invention relates to the technical field of chemical waste water treatment and specifically relates to a treating method of high-concentration salt waste water on a photosensitizer production alkaline hydrolysis section and a treating system thereof, and the treating method comprises the following steps of: acidifying and filtrating the high-concentration salt waste water on the photosensitizer production alkaline hydrolysis section to remove macromolecular organic substances and inorganic suspension colloid; desalting to the pretreated high-concentration salt waste water on the photosensitizer production alkaline hydrolysis section through a bipolar membrane device, and directly conversing sodium chloride from the waste water into relative-concentration hydrochloric acid and sodium hydroxide solution. In the treating method and the treating system, there are no secondary pollution and solid waste production, and removed salt can be directly conversed into hydrochloric acid and sodium hydroxide solution with a certain concentration and applied to the primary acidification or production process, thus the method and the system have the advantages of excellent desalting effect, resources and energy saving, simple processes and low operating cost.
Description
Technical field
The present invention relates to wastewater from chemical industry technical field, be specifically related to a kind of photosensitizers and produce alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process and system thereof.
Background technology
Photosensitizers is a class can absorb certain wavelength energy at ultraviolet region (250 ~ 420nm) or visible region (400 ~ 800nm), produces free radical, positively charged ion etc., thus the compound of trigger monomer polymerization crosslinking solidification.
Photosensitizers is one of important component of photocuring sizing agent, and it plays decisive role to solidification rate.Light trigger is by after UV-irradiation, and light absorbing energy, splits into 2 living radicals, causes photosensitive resin and reactive thinner generation chain reaction polymerization, makes sizing agent crosslinking curing, is characterized in fast, environmental protection, energy-conservation.
In the building-up process of photosensitizers, use the materials such as a large amount of hydrochloric acid, liquid caustic soda and chlorine.Wherein can discharge the brine waste containing a large amount of sodium-chlor composition in alkaline hydrolysis process, waste water component comprises: water 85 ~ 90% (W/W), sodium-chlor 8.0 ~ 10.0% (W/W), other material.Waste water accounts for more than 30% of whole displacement product.It is high that this type of waste water has organic concentration, the feature that salt content is high.As directly entered biochemical treatment system, system will be caused normally to run.Current processing mode enters two kinds of processing modes of biochemical treatment system after mainly containing distillation desalination and dilution.
Distillation desalination adopts the mode of triple effect underpressure distillation or MVR distillation, the moisture in waste water and some volatile organism is distilled with water vapor form, and residue dope goes out the waste residue containing sodium-chlor crystallization through crystallization kettle Crystallization Separation.This type of waste residue, due to containing the difficult volatile organic compounds of part and building-up reactions intermediate, cannot directly be utilized, and only have as industrial dangerous waste process, very easily cause secondary pollution, and running cost is high.The method entering biochemical treatment system after dilution, because of salt excessive concentration, for meeting the requirement of biochemical treatment water inlet, need be diluted more than at least 30 times and just can meet the demands, causing a large amount of wastes of water, have larger problem in actually operating.Therefore, treatment process and the system thereof of developing a kind of photosensitizers production alkaline hydrolysis workshop section high-concentration salt-containing wastewater also just become one of study hotspot.
Summary of the invention
The object of this invention is to provide a kind of photosensitizers and produce alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process and system thereof, non-secondary pollution, produce without solid waste, the salt that removes can be converted into certain density hydrochloric acid and sodium hydroxide solution, reuse to front end acid out treating processes or production process, have desalting effect good, economize on resources and the energy, the advantage such as technique is simple, working cost is low.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by a kind of photosensitizers, comprises the steps:
(1) pre-treatment: photosensitizers is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater through acid out and filtration treatment, to remove macromolecule organic substance in waste water and inorganic suspensoid;
(2) pretreated photosensitizers is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater and carry out desalting treatment by bipolar membrane device, the sodium-chlor in waste water is converted into hydrochloric acid and the sodium hydroxide solution of respective concentration, to reach the object of desalination.
Further, alkaline hydrolysis workshop section high-concentration salt-containing wastewater produced by described photosensitizers is the middle-stage wastewater discharged in heparin sodium production process, its component comprises: alkaline hydrolysis workshop section high-concentration salt-containing wastewater produced by described photosensitizers is the middle-stage wastewater discharged in photosensitizers production process, and its component comprises: water 85 ~ 90% (W/W), sodium-chlor 8.0 ~ 10.0% (W/W), other material.
Further, described acid out process adopts hydrochloric acid as acid adjustment medicament, by waste water ph to 5 ~ 6, and adds flocculation agent, and the macromolecule organic substance in waste water and mineral suspensions are separated out.
Further, the concentration of hydrochloric acid that described acid out process uses controls at 15% ~ 20%(W/W), it is formulated that the hydrochloric acid produced by described bipolar membrane device adds fresh hydrochloric acid.
Further, described filtration treatment comprises single filter and cascade filtration, described single filter adopts order number to be 500 ~ 1000 object plate-and-frame filter press, and cascade filtration adopts precision to be the filter element filtering device of 0.45 ~ 1.0 μm, to remove macromolecule organic substance in waste water and mineral suspensions.
Further, described bipolar membrane device comprises cathode compartment, sour room, salt room, alkali room, anolyte compartment, and by anions and canons exchange membrane or Bipolar Membrane partitioned arrangement composition between each room, its arrangement mode is cationic exchange membrane-Bipolar Membrane-anion-exchange membrane.
Further, the plate current density of described bipolar membrane device is 320-340A/m
2, the spacing 4 ~ 8mm between each room, arranges flow-guiding channel in the middle of dividing plate; In acid room and alkali room, solution crosses Flow Velocity 8 ~ 10cm/s, salt room solution crosses Flow Velocity 10 ~ 14cm/s.
Further, acid in described desalting treatment process, alkali, salt three kinds of solution arrange independently basin and recycle pump respectively, by controlling the side line outflow rate of corresponding circulating pump, control waste water ratio of desalinization and concentration that is sour, alkaline solution; Controlling ratio of desalinization in described desalting treatment process is 85 ~ 90%, and concentration of hydrochloric acid is 12 ~ 15% (W/W), and naoh concentration is 15 ~ 17% (W/W).
Further, the treatment system that described nigrosine produces high-concentration salt-containing wastewater comprises: waste water tank, acid out device, filtration unit, bipolar membrane device, recirculated cooling water heat-exchanger rig, acid case, alkali case, described waste water tank, acid out device, filtration unit, be interconnected by lift pump or topping-up pump and connecting tube between bipolar membrane device, be interconnected by pump and connecting tube between described bipolar membrane device and recirculated cooling water heat-exchanger rig, salt water tank and salt water circulating pump is provided with between described filtration unit and bipolar membrane device, described sour case is communicated with the sour room in described bipolar membrane device by acid circulating pump, described alkali case is communicated with the alkali room in described bipolar membrane device by alkali recycle pump.
Further, described salt water circulating pump exit end is provided with ready-package candle filter, to filter the suspensoid produced in demineralising process.
Ion-exchange in bipolar membrane device of the present invention is intermembranous is elastic baffle with runner, and anode adopts Ti-Ru electrode, and negative electrode adopts stainless steel electrode, the following (see figure 2) of specific works principle:
Waste water after filtration is pumped into the salt room of bipolar membrane device, and pump into deionized water at acid, alkali in room, room, pole adds the alkali lye of 10.0 ~ 15.0% (W/W) concentration simultaneously; The cathode and anode of bipolar membrane device be connected with the negative, positive pole of direct supply respectively, controlling DC electric field current density is 320 ~ 340A/m
2, voltage across poles 40V; Acid, alkali, salt room solution adopt recycle pump to circulate in respective chambers respectively, control at 1 ~ 40 DEG C by heat-exchanger rig by each room solution temperature, set temperature sensor in Controlling System, when exceeding design temperature, strengthen interchanger coolant rate, damage membrane module to prevent excessive temperature.
Chlorion in waste water is under electric field action, and selectivity arrives sour room through anion-exchange membrane, is combined generates hydrochloric acid with the hydrogen ion that Bipolar Membrane produces; Sodium ion selective in waste water arrives alkali room through cationic exchange membrane, is combined generates sodium hydroxide with the hydroxide ion that Bipolar Membrane produces, thus realizes the sodium-chlor in waste water to be separately converted to corresponding acid and alkali, achieves the object of desalination.
Solution in sour room in bipolar membrane device, alkali room, salt room all adopts recycle pump alone cycle, and pump discharge side line goes out to flow finished product, controls ratio of desalinization, acid concentration, alkali concn respectively by the side line outflow rate controlling different recycle pump.Under the prerequisite of comprehensive accounting running cost, control ratio of desalinization 85 ~ 90%, concentration of hydrochloric acid controls at 12 ~ 15% (W/W), and naoh concentration controls at 15 ~ 17% (W/W).
Positively effect of the present invention is: by means of the combination of acid out pre-treatment and bipolar membrane device, changes the conventional process mode that alkaline hydrolysis workshop section high-concentration salt-containing wastewater produced by photosensitizers.Sodium-chlor in waste water is regenerated hydrochloric acid and sodium hydroxide, completely avoid the secondary pollution problem of the waste residue that original distil process produces; The hydrochloric acid produced and sodium hydroxide inclusion-free, purity is high, can direct reuse to the acid out treating processes of front end or production process; Meanwhile, utilize acid out process, macromolecule organic substances most in waste water and inorganic suspensoid are separated out, and by secondary filtration, they is removed, the COD of waste water after pre-treatment
crclearance can reach 30.0 ~ 40.0%.Use the present invention, can by whole production process more than 60 ~ 80% acid, alkali recycle, to greatly reduce in production process the consumption of acid, alkali; Meanwhile, the impact of salt on follow-up Sewage treatment systems is also reduced.Brine waste after process of the present invention, sodium chloride content can be reduced to 15 ~ 20g/L, substantially meets the basic saltiness requirement of biochemical wastewater treatment system.Contrast with Conventional espresso process, treatment method produces without any secondary pollution, the acid generated, alkali can direct reuse to acid out treating processes or production process, and energy consumption cost is less than 195 yuan/m
3waste water.The present invention also can substitute current dilution process mode, reduces waste water total release at double.
accompanying drawing illustrates:
Fig. 1 is the process flow diagram that alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment system produced by photosensitizers of the present invention;
Fig. 2 is bipolar membrane device principle of work schematic diagram of the present invention.
embodiment:
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment one, see shown in Fig. 1 to Fig. 2:
Alkaline hydrolysis workshop section high-concentration salt-containing wastewater produced by photosensitizers: day quantity discharged be about 20 tons, waste water component comprises: water 90% (W/W), sodium-chlor 8.2% (W/W), other material 1.8% (W/W).
Photosensitizers is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment system and is comprised: 120m
3volume waste water tank 1, lift pump 1, acid out device 1 overlap, topping-up pump 2, flame filter press 1, candle filter 1 overlap, 20m
3volume salt water tank 1,20m
31, volumetric acid case, 20m
31, volume alkali case, acid circulating pump 1, alkali recycle pump 1, salt water circulating pump 1, bipolar membrane device 1 overlap, recirculated cooling water heat-exchanger rig 1 overlaps.
A kind of photosensitizers produces alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process and system thereof, comprises the steps and technological process:
(1) preprocessing process:
1) photosensitizers collected separately is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater and be promoted to acid out treatment unit by lift pump sequence batch (waste water tank, with hydrochloric acid, waste water ph is adjusted to 5 ~ 6, and add appropriate flocculation agent (PAM medicament), separate out to make macromolecule organic substance and mineral suspensions;
2) waste water after acid out process is promoted to filtration 500 object flame filter press by topping-up pump to filter, filtrate waste water is promoted to by topping-up pump the candle filter that precision is 0.45 μm, and clear liquid gravity flow enters salt water tank, residue collection outward transport process;
(2) desalting treatment process:
1) sour case and alkali case are put into deionized water respectively, room, pole adds the alkali lye that concentration is 10.0% (W/W);
2) open bipolar membrane device, current density between cathode and anode is controlled at 320A/m
2, voltage across poles 40V, start acid, alkali, salt recycle pump, control sour room, alkali room solution crosses Flow Velocity 10cm/s, salt room solution crosses Flow Velocity 14cm/s, the spacing 8mm between each room, and arrange flow-guiding channel in the middle of dividing plate, each room solution temperature controls at 30 ~ 40 DEG C;
3) after in acid, alkali, salt water tank, respective concentration reaches set(ting)value, the side line opening corresponding circulating pump respectively goes out stream, under the prerequisite meeting ratio of desalinization 85%, acid concentration 12%, alkali concn 15%, salt solution: acid: the side line of alkali goes out stream than controlling at 1:1.26:1.14.
Anion-exchange membrane in described bipolar membrane device is Selemion CMV high-durability film, cationic exchange membrane is the high temperature resistant alkali resistance film of Selemion AHO, Bipolar Membrane is Neosebta BP-1 film, the intermembranous elastic baffle being provided with band runner of ion-exchange, anode adopts Ti-Ru electrode, and negative electrode adopts 304 stainless steel electrodes.Described salt water circulating pump exit end is provided with ready-package candle filter, to filter the suspensoid produced in demineralising process.
Under the prerequisite by above step operation, system runs 8 hours every day.After end of run, adopt 5.0% sodium hydroxide solution, inject acid, the indoor soaking and washing of salt 30 minutes, waste liquid enters salt water tank.
Find within cycle of operation of 80 days altogether, be under the condition of 8% (W/W) at former water sodium chloride concentration, by adjustment recycle pump side line water flow, all the time can ensure that water outlet sodium chloride concentration is less than 1.2% (W/W), comprehensive power consumption is about 195kwh/ ton (waste water).Recovery is produced concentration of hydrochloric acid and is about 12%, and alkali concn is about 15%, and the rear de-salted water of process directly enters plant area's Sewage treatment systems and carries out subsequent disposal.In whole treatment cycle, membrane module is without considerable change.
Embodiment two, see shown in Fig. 1 to Fig. 2:
Alkaline hydrolysis workshop section high-concentration salt-containing wastewater produced by photosensitizers: day quantity discharged be about 15 tons, waste water component comprises: water 85% (W/W), sodium-chlor 10.0% (W/W), other material 5% (W/W).
Photosensitizers alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment system comprises: 60m
3volume waste water tank 1, lift pump 1, acid out device 1 overlap, topping-up pump 2, flame filter press 1, candle filter 1 overlap, 10m
3volume salt water tank 1,10m
31, volumetric acid case, 10m
31, volume alkali case, acid circulating pump 1, alkali recycle pump 1, salt water circulating pump 1, bipolar membrane device 1 overlap, recirculated cooling water heat-exchanger rig 1 overlaps.
A kind of photosensitizers produces alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process and system thereof, comprises the steps and technological process:
(1) preprocessing process:
1) photosensitizers collected separately is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater and be promoted to acid out treatment unit by lift pump sequence batch (waste water tank, with hydrochloric acid, waste water ph is adjusted to 5 ~ 6, and add appropriate flocculation agent (PAM medicament), separate out to make macromolecule organic substance and mineral suspensions;
2) waste water after acid out process is promoted to filtration 1000 object flame filter press by topping-up pump to filter, filtrate waste water is promoted to by topping-up pump the candle filter that precision is 1.0 μm, and clear liquid gravity flow enters salt water tank, residue collection outward transport process;
(2) desalting treatment process:
1) sour case and alkali case are put into deionized water respectively, room, pole adds the alkali lye that concentration is 15.0% (W/W);
2) open bipolar membrane device, current density between cathode and anode is controlled at 340A/m
2, voltage across poles 40V, start acid, alkali, salt recycle pump, control sour room, alkali room solution crosses Flow Velocity 8cm/s, salt room solution crosses Flow Velocity 10cm/s, the spacing 4mm between each room, and arrange flow-guiding channel in the middle of dividing plate, each room solution temperature controls at 20 ~ 30 DEG C;
3) after in acid, alkali, salt water tank, respective concentration reaches set(ting)value, the side line opening corresponding circulating pump respectively goes out stream, under the prerequisite meeting ratio of desalinization 90%, acid concentration 15%, alkali concn 17%, salt solution: acid: the side line of alkali goes out stream than controlling at 1:1.20:1.10.
Anion-exchange membrane in described bipolar membrane device is Selemion CSO type monovalent ion permselective membrane, cationic exchange membrane is Selemion ASV type monovalent ion permselective membrane, Bipolar Membrane is Neosebta BP-1 film, the intermembranous elastic baffle being provided with band runner of ion-exchange, anode adopts Ti-Ru electrode, and negative electrode adopts 304 stainless steel electrodes.Described salt water circulating pump exit end is provided with ready-package candle filter, to filter the suspensoid produced in demineralising process.
Under the prerequisite by above step operation, system runs 8 hours every day.After end of run, adopt 5.0% sodium hydroxide solution, inject acid, the indoor soaking and washing of salt 30 minutes, waste liquid enters salt water tank.
Find within cycle of operation of 80 days altogether, be under the condition of 10% (W/W) at former water sodium chloride concentration, by adjustment recycle pump side line water flow, all the time can ensure that water outlet sodium chloride concentration is less than 1.0% (W/W), comprehensive power consumption is about 205kwh/ ton (waste water).Recovery is produced concentration of hydrochloric acid and is about 15%, and alkali concn is about 17%, and the rear de-salted water of process directly enters plant area's Sewage treatment systems and carries out subsequent disposal.In whole treatment cycle, membrane module is without considerable change.
The above is only better embodiment of the present invention, therefore all equivalences done according to the ultimate principle described in patent claim of the present invention change or modify, and are included in patent claim of the present invention.
Claims (10)
1. an alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers, it is characterized in that comprising the steps:
(1) pre-treatment: photosensitizers is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater through acid out and filtration treatment, to remove macromolecule organic substance in waste water and inorganic suspensoid;
(2) pretreated photosensitizers is produced alkaline hydrolysis workshop section high-concentration salt-containing wastewater and carry out desalting treatment by bipolar membrane device, the sodium-chlor in waste water is converted into hydrochloric acid and the sodium hydroxide solution of respective concentration.
2. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: alkaline hydrolysis workshop section high-concentration salt-containing wastewater produced by described photosensitizers is the middle-stage wastewater discharged in photosensitizers production process, and its component comprises: water 85 ~ 90% (W/W), sodium-chlor 8.0 ~ 10.0% (W/W), other material.
3. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: described acid out process adopts hydrochloric acid as acid adjustment medicament, by waste water ph to 5 ~ 6, and add flocculation agent, the macromolecule organic substance in waste water and mineral suspensions are separated out.
4. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: the concentration of hydrochloric acid that described acid out process uses controls at 15% ~ 20%(W/W), it is formulated that the hydrochloric acid produced by described bipolar membrane device adds fresh hydrochloric acid.
5. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: described filtration treatment comprises single filter and cascade filtration, described single filter adopts order number to be 500 ~ 1000 object plate-and-frame filter press, and cascade filtration employing precision is the filter element filtering device of 0.45 ~ 1.0 μm.
6. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: described bipolar membrane device comprises cathode compartment, sour room, salt room, alkali room, anolyte compartment, by anions and canons exchange membrane or Bipolar Membrane partitioned arrangement composition between each room, its arrangement mode is cationic exchange membrane-Bipolar Membrane-anion-exchange membrane.
7. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: the plate current density of described bipolar membrane device is 320-340A/m
2, the spacing 4 ~ 8mm between each room, arranges flow-guiding channel in the middle of dividing plate; In acid room and alkali room, solution crosses Flow Velocity 8 ~ 10cm/s, salt room solution crosses Flow Velocity 10 ~ 14cm/s.
8. alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 1, it is characterized in that: acid in described desalting treatment process, alkali, salt three kinds of solution arrange independently basin and recycle pump respectively, by controlling the side line outflow rate of corresponding circulating pump, control waste water ratio of desalinization and concentration that is sour, alkaline solution; Controlling ratio of desalinization in described desalting treatment process is 85 ~ 90%, and concentration of hydrochloric acid is 12 ~ 15% (W/W), and naoh concentration is 15 ~ 17% (W/W).
9. the treatment system of alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by the photosensitizers according to claim 1 or 6, it is characterized in that comprising: waste water tank, acid out device, filtration unit, bipolar membrane device, recirculated cooling water heat-exchanger rig, acid case, alkali case, described waste water tank, acid out device, filtration unit, be interconnected by lift pump or topping-up pump and connecting tube between bipolar membrane device, be interconnected by pump and connecting tube between described bipolar membrane device and recirculated cooling water heat-exchanger rig, salt water tank and salt water circulating pump is provided with between described filtration unit and bipolar membrane device, described sour case is communicated with the sour room in described bipolar membrane device by acid circulating pump, described alkali case is communicated with the alkali room in described bipolar membrane device by alkali recycle pump.
10. the treatment system of alkaline hydrolysis workshop section high-concentration salt-containing wastewater treatment process produced by photosensitizers according to claim 9, it is characterized in that: described salt water circulating pump exit end is provided with ready-package candle filter, to filter the suspensoid produced in demineralising process.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112254831A (en) * | 2020-10-26 | 2021-01-22 | 湖南衡标检测技术有限公司 | Deep water temperature measuring device for wastewater monitoring |
| CN113401983A (en) * | 2020-03-16 | 2021-09-17 | 佛山市云米电器科技有限公司 | Water purification method and separation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838240A (en) * | 2012-09-28 | 2012-12-26 | 武汉大学 | Method and system for recovering waste water generated in carbocisteine production |
| CN103073132A (en) * | 2012-12-28 | 2013-05-01 | 中国环境科学研究院 | Process for treating amantadine amination waste water through bipolar membrane electrodialysis process |
-
2014
- 2014-10-08 CN CN201410523479.7A patent/CN104230065A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838240A (en) * | 2012-09-28 | 2012-12-26 | 武汉大学 | Method and system for recovering waste water generated in carbocisteine production |
| CN103073132A (en) * | 2012-12-28 | 2013-05-01 | 中国环境科学研究院 | Process for treating amantadine amination waste water through bipolar membrane electrodialysis process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401983A (en) * | 2020-03-16 | 2021-09-17 | 佛山市云米电器科技有限公司 | Water purification method and separation device |
| CN112254831A (en) * | 2020-10-26 | 2021-01-22 | 湖南衡标检测技术有限公司 | Deep water temperature measuring device for wastewater monitoring |
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Address after: 200437, room 3, building 900, Lane 205, Quyang Road, Shanghai, Hongkou District Applicant after: SHANGHAI BODAN ENVIRONMENTAL ENGINEERING TECHNOLOGY CO., LTD. Address before: 200437, room 3, building 900, Lane 205, Quyang Road, Shanghai, Hongkou District Applicant before: Shanghai Bodan Environmental Engineering Technology Co., Ltd. |
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Application publication date: 20141224 |