CN204265593U - A kind of system reclaiming soda acid from glass production sewage - Google Patents
A kind of system reclaiming soda acid from glass production sewage Download PDFInfo
- Publication number
- CN204265593U CN204265593U CN201420718710.3U CN201420718710U CN204265593U CN 204265593 U CN204265593 U CN 204265593U CN 201420718710 U CN201420718710 U CN 201420718710U CN 204265593 U CN204265593 U CN 204265593U
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- CN
- China
- Prior art keywords
- alkali
- communicated
- sulfuric acid
- filtration unit
- output terminal
- 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.)
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- 239000002253 acid Substances 0.000 title claims abstract description 26
- 239000011521 glass Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000003513 alkali Substances 0.000 claims abstract description 68
- 238000001914 filtration Methods 0.000 claims abstract description 58
- 238000000909 electrodialysis Methods 0.000 claims abstract description 53
- 239000002351 wastewater Substances 0.000 claims abstract description 46
- 239000012528 membrane Substances 0.000 claims abstract description 29
- 238000001704 evaporation Methods 0.000 claims abstract description 19
- 230000001112 coagulant Effects 0.000 claims abstract description 18
- 239000000701 coagulant Substances 0.000 claims abstract description 18
- 238000002425 crystallisation Methods 0.000 claims abstract description 18
- 230000005712 crystallization Effects 0.000 claims abstract description 18
- 238000001556 precipitation Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 19
- 238000011084 recovery Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 abstract description 19
- 150000007528 brønsted-lowry bases Chemical class 0.000 abstract description 8
- 239000005864 Sulphur Substances 0.000 abstract description 6
- -1 sulphur bronsted lowry acids Chemical class 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 238000000151 deposition Methods 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 18
- 239000012535 impurity Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000007688 edging Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 150000007516 brønsted-lowry acids Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The utility model relates to a kind of system reclaiming soda acid from glass production sewage, comprises wastewater disposal basin, coagulant precipitation pond, filtration unit I, PH equalizing tank, filtration unit II, crystallization apparatus, dissolving tank, bipolar membrane electrodialysis film group device, electrodialysis concentrating unit, evaporation concentration device, retrieval of sulfuric acid pipeline and alkali collection pipeline.The utility model not only prevent environmental pollution, environmental protection; The sulphur bronsted lowry acids and bases bronsted lowry that can again utilize also is obtained by bipolar membrane electrodialysis film group device; Turn waste into wealth, adopt electrodialysis concentrating unit to concentrate alkali, directly can reclaim the alkali that alkali concn control is 5%-15%, adopt evaporation concentration device directly can reclaim the alkali that alkali concn control is 50%-100%, Be very effective; And adopt agitator effectively to prevent the situation occurring bottom wastewater disposal basin depositing.
Description
Technical field
The utility model relates to glass production field of waste liquid treatment, particularly relates to a kind of system reclaiming soda acid from glass production sewage.
Background technology
At present, in process of glass, produce a large amount of waste water, if obtain recycling bronsted lowry acids and bases bronsted lowry from waste water, become the important topic of wastewater treatment.
As the Chinese utility model patent " a kind of collection reclaiming system of glass edging waste water " that application number is 201220150706.2, disclose the collection reclaiming system of novel glass edging waste water, it can solve the problem of the decontamination effect improving difference existed in traditional glass edging wastewater collection reuse process, ensure the cooling performance of glass edging processing, improve product quality and production efficiency, and the glass granulated slag effectively processed in waste water, reduce environmental pollution.It comprises settling tank, wastewater equalization pond and combination equipment for separating liquid from solid, the edging waste water of glass edge-grinding machine connects into wastewater equalization pond by wastewater drainage pipe, wastewater equalization pond connects into settling tank by lift pump, sludge sump is connected by mud discharging pipeline bottom settling tank, settling tank connects combination equipment for separating liquid from solid by supernatant liquor transfer line, combination equipment for separating liquid from solid is provided with mud discharging mouth and supernatant liquor delivery pipe, mud discharging mouth connects into sludge sump, supernatant liquor delivery pipe is connected to reuse pool by reuse pipeline, reuse pool connects into the cooling apparatus of glass edge-grinding machine by pipe network.But this patent weak point is: in the process disposed waste liquid, all cannot reclaim recycling sulphur bronsted lowry acids and bases bronsted lowry from waste liquid, the waste liquid in a large number containing bronsted lowry acids and bases bronsted lowry is wasted.
Utility model content
The purpose of this utility model is the problems referred to above overcoming prior art existence, proposes a kind of system reclaiming soda acid from glass production sewage.The utility model not only prevent environmental pollution, environmental protection; The sulphur bronsted lowry acids and bases bronsted lowry that can again utilize also is obtained by bipolar membrane electrodialysis film group device; Turn waste into wealth; And adopt agitator effectively to prevent the situation occurring bottom wastewater disposal basin depositing.
The utility model realizes by the following technical solutions:
A kind of system reclaiming soda acid from glass production sewage, it is characterized in that: comprise wastewater disposal basin, coagulant precipitation pond, filtration unit I, PH equalizing tank, filtration unit II, crystallization apparatus, dissolving tank, bipolar membrane electrodialysis film group device, electrodialysis concentrating unit, evaporation concentration device, retrieval of sulfuric acid pipeline and alkali collection pipeline, the output terminal of described wastewater disposal basin is communicated with the input terminus in coagulant precipitation pond, the output terminal in described coagulant precipitation pond is communicated with the input terminus of filtration unit I, the output terminal of filtration unit I is communicated with the input terminus of PH equalizing tank, the output terminal of PH equalizing tank is communicated with the input terminus of filtration unit II, the output terminal of filtration unit II is communicated with the input terminus of crystallization apparatus, the output terminal of crystallization apparatus is communicated with the input terminus of dissolving tank, the output terminal of dissolving tank is communicated with the input terminus of bipolar membrane electrodialysis film group device, the sulfuric acid end that goes out of described bipolar membrane electrodialysis film group device is communicated with the sulfuric acid end that enters of electrodialysis concentrating unit, go out alkali end to be communicated with the alkali end that enters of electrodialysis concentrating unit, described electrodialysis concentrating unit go out sulfuric acid end with go out alkali end respectively with the entering sulfuric acid end and enter alkali end and be communicated with of evaporation concentration device, described evaporation concentration device go out sulfuric acid end with go out alkali end respectively with retrieval of sulfuric acid pipeline and alkali collection pipeline communication, agitator is provided with in described wastewater disposal basin, agitator comprises the stir shaft be fixed on bottom wastewater disposal basin and the paddle be arranged on stir shaft.
Described bipolar membrane electrodialysis film group device is provided with heat sink.
Described heat sink is interchanger.
Described filtration unit I is flame filter press, and filtration unit II is PP microporous filter.Flame filter press and PP microporous filter are physical filtering, can filter out a certain size the large granular impurity in waste liquid and suspended substance.
The diameter 0.22um-0.45um of PP micropore filtering film in described PP microporous filter.
Also comprise sulfuric acid storage tank and alkali storage tank, the acid end that goes out of described acid recovery pipeline is communicated with sulfuric acid storage tank, and the alkali end that goes out of alkali collection pipeline is communicated with alkali storage tank.
Compared with prior art, its advantage is the utility model:
1, the utility model not only prevent environmental pollution, environmental protection; The sulphur bronsted lowry acids and bases bronsted lowry that can again utilize also is obtained by bipolar membrane electrodialysis film group device; Turn waste into wealth.
2, be provided with agitator in wastewater disposal basin described in the utility model, agitator comprises the stir shaft be fixed on bottom wastewater disposal basin and the paddle be arranged on stir shaft, effectively prevents from occurring the situation causing pipeline obstructed of depositing bottom wastewater disposal basin.
3, the utility model adopts electrodialysis concentrating unit to concentrate alkali, directly can reclaim the alkali that alkali concn control is 5%-15%, adopts evaporation concentration device directly can reclaim the alkali that alkali concn control is 50%-100%, Be very effective.
4, this practicality newly adopts bipolar membrane electrodialysis film group device to be provided with heat sink, and heat sink is interchanger; Can lower the temperature to bipolar membrane electrodialysis film group device, facilitate the carrying out of follow-up matting.
5, this practicality newly adopts described filtration unit I to be flame filter press, and filtration unit II is PP microporous filter.Flame filter press and PP microporous filter are physical filtering, can filter out a certain size the large granular impurity in waste liquid and suspended substance.
6, the utility model also comprises sulfuric acid storage tank and alkali storage tank, and the acid end that goes out of acid recovery pipeline is communicated with sulfuric acid storage tank, and the alkali end that goes out of alkali collection pipeline is communicated with alkali storage tank; Soda acid after concentrated can be stored, easy to use.
7, the utility model adopts coagulating sedimentation principle under the effect of coagulating agent, the colloid in waste water and fine suspension is made to be condensed into flocs unit, the PH of waste liquid is adjusted to 7 by PH equalizing tank, filtration unit I and filtration unit II are by the large granular impurity of a certain size in waste liquid and suspended substance removal, and last waste liquid obtains the sulphur bronsted lowry acids and bases bronsted lowry that can again utilize successively by crystallization apparatus, dissolving tank II, bipolar membrane electrodialysis film group device; Not only prevent environmental pollution, environmental protection; The sulphur bronsted lowry acids and bases bronsted lowry that can again utilize also is obtained by bipolar membrane electrodialysis film group device; Turn waste into wealth.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram;
Fig. 2 is the utility model wastewater disposal basin structural representation;
Mark in figure: 1, wastewater disposal basin, 2, coagulant precipitation pond, 3, filtration unit I, 4, PH equalizing tank, 5, filtration unit II, 6, crystallization apparatus, 7, dissolving tank, 8, bipolar membrane electrodialysis film group device, 9, retrieval of sulfuric acid pipeline, 10, alkali collection pipeline, 11, heat sink, 12, sour storage tank, 13, alkali storage tank, 14, electrodialysis concentrating unit, 15, evaporation concentration device, 16, stir shaft, 17, paddle.
Embodiment
Below in conjunction with Figure of description, the utility model is further detailed:
Embodiment 1:
A kind of system reclaiming soda acid from glass production sewage, comprise wastewater disposal basin 1, coagulant precipitation pond 2, filtration unit I 3, PH equalizing tank 4, filtration unit II 5, crystallization apparatus 6, dissolving tank 7, bipolar membrane electrodialysis film group device 8, electrodialysis concentrating unit 14, evaporation concentration device 15, retrieval of sulfuric acid pipeline 9 and alkali collection pipeline 10, the output terminal of described wastewater disposal basin 1 is communicated with the input terminus in coagulant precipitation pond 2, the output terminal in described coagulant precipitation pond 2 is communicated with the input terminus of filtration unit I 3, the output terminal of filtration unit I 3 is communicated with the input terminus of PH equalizing tank 4, the output terminal of PH equalizing tank 4 is communicated with the input terminus of filtration unit II 5, the output terminal of filtration unit II 5 is communicated with the input terminus of crystallization apparatus 6, the output terminal of crystallization apparatus 6 is communicated with the input terminus of dissolving tank 7, the output terminal of dissolving tank 7 is communicated with the input terminus of bipolar membrane electrodialysis film group device 8, the sulfuric acid end that goes out of described bipolar membrane electrodialysis film group device 8 is communicated with the sulfuric acid end that enters of electrodialysis concentrating unit 14, go out alkali end to be communicated with the alkali end that enters of electrodialysis concentrating unit 14, described electrodialysis concentrating unit 14 go out sulfuric acid end with go out alkali end respectively with the entering sulfuric acid end and enter alkali end and be communicated with of evaporation concentration device 15, the going out sulfuric acid end and go out alkali end and be communicated with alkali collection pipeline 10 with retrieval of sulfuric acid pipeline 9 respectively of described evaporation concentration device 15, agitator is provided with in described wastewater disposal basin 1, agitator comprises the stir shaft 16 be fixed on bottom wastewater disposal basin 1 and the paddle 17 be arranged on stir shaft 16.
In the utility model, described bipolar membrane electrodialysis film group device 8 is provided with heat sink 11.
In the utility model, described heat sink 11 is interchanger.
In the utility model, described filtration unit I 4 is flame filter press, and filtration unit II 5 is PP microporous filter.Flame filter press and PP microporous filter are physical filtering, can filter out a certain size the large granular impurity in waste liquid and suspended substance.
In the utility model, the diameter 0.22um of PP micropore filtering film in described PP microporous filter.
In use, stir shaft 16 is connected with the motor output shaft of wastewater disposal basin 1 outside the utility model, and motor powered stir shaft 16 rotates, and keeps the waste liquid in wastewater disposal basin 1 even by paddle 17.
Embodiment 2:
A kind of system reclaiming soda acid from glass production sewage, comprise wastewater disposal basin 1, coagulant precipitation pond 2, filtration unit I 3, PH equalizing tank 4, filtration unit II 5, crystallization apparatus 6, dissolving tank 7, bipolar membrane electrodialysis film group device 8, electrodialysis concentrating unit 14, evaporation concentration device 15, retrieval of sulfuric acid pipeline 9 and alkali collection pipeline 10, the output terminal of described wastewater disposal basin 1 is communicated with the input terminus in coagulant precipitation pond 2, the output terminal in described coagulant precipitation pond 2 is communicated with the input terminus of filtration unit I 3, the output terminal of filtration unit I 3 is communicated with the input terminus of PH equalizing tank 4, the output terminal of PH equalizing tank 4 is communicated with the input terminus of filtration unit II 5, the output terminal of filtration unit II 5 is communicated with the input terminus of crystallization apparatus 6, the output terminal of crystallization apparatus 6 is communicated with the input terminus of dissolving tank 7, the output terminal of dissolving tank 7 is communicated with the input terminus of bipolar membrane electrodialysis film group device 8, the sulfuric acid end that goes out of described bipolar membrane electrodialysis film group device 8 is communicated with the sulfuric acid end that enters of electrodialysis concentrating unit 14, go out alkali end to be communicated with the alkali end that enters of electrodialysis concentrating unit 14, described electrodialysis concentrating unit 14 go out sulfuric acid end with go out alkali end respectively with the entering sulfuric acid end and enter alkali end and be communicated with of evaporation concentration device 15, the going out sulfuric acid end and go out alkali end and be communicated with alkali collection pipeline 10 with retrieval of sulfuric acid pipeline 9 respectively of described evaporation concentration device 15, agitator is provided with in described wastewater disposal basin 1, agitator comprises the stir shaft 16 be fixed on bottom wastewater disposal basin 1 and the paddle 17 be arranged on stir shaft 16.
In the utility model, described bipolar membrane electrodialysis film group device 8 is provided with heat sink 11.
In the utility model, described heat sink 11 is interchanger.
In the utility model, described filtration unit I 4 is flame filter press, and filtration unit II 5 is PP microporous filter.Flame filter press and PP microporous filter are physical filtering, can filter out a certain size the large granular impurity in waste liquid and suspended substance.
In the utility model, the diameter 0.34um of PP micropore filtering film in described PP microporous filter.
In the utility model, also comprise sulfuric acid storage tank 12 and alkali storage tank 13, the acid end that goes out of described acid recovery pipeline 9 is communicated with sulfuric acid storage tank 12, and the alkali end that goes out of alkali collection pipeline 10 is communicated with alkali storage tank 13.
In use, stir shaft 16 is connected with the motor output shaft of wastewater disposal basin 1 outside the utility model, and motor powered stir shaft 16 rotates, and keeps the waste liquid in wastewater disposal basin 1 even by paddle 17.
Embodiment 3:
A kind of system reclaiming soda acid from glass production sewage, comprise wastewater disposal basin 1, coagulant precipitation pond 2, filtration unit I 3, PH equalizing tank 4, filtration unit II 5, crystallization apparatus 6, dissolving tank 7, bipolar membrane electrodialysis film group device 8, electrodialysis concentrating unit 14, evaporation concentration device 15, retrieval of sulfuric acid pipeline 9 and alkali collection pipeline 10, the output terminal of described wastewater disposal basin 1 is communicated with the input terminus in coagulant precipitation pond 2, the output terminal in described coagulant precipitation pond 2 is communicated with the input terminus of filtration unit I 3, the output terminal of filtration unit I 3 is communicated with the input terminus of PH equalizing tank 4, the output terminal of PH equalizing tank 4 is communicated with the input terminus of filtration unit II 5, the output terminal of filtration unit II 5 is communicated with the input terminus of crystallization apparatus 6, the output terminal of crystallization apparatus 6 is communicated with the input terminus of dissolving tank 7, the output terminal of dissolving tank 7 is communicated with the input terminus of bipolar membrane electrodialysis film group device 8, the sulfuric acid end that goes out of described bipolar membrane electrodialysis film group device 8 is communicated with the sulfuric acid end that enters of electrodialysis concentrating unit 14, go out alkali end to be communicated with the alkali end that enters of electrodialysis concentrating unit 14, described electrodialysis concentrating unit 14 go out sulfuric acid end with go out alkali end respectively with the entering sulfuric acid end and enter alkali end and be communicated with of evaporation concentration device 15, the going out sulfuric acid end and go out alkali end and be communicated with alkali collection pipeline 10 with retrieval of sulfuric acid pipeline 9 respectively of described evaporation concentration device 15, agitator is provided with in described wastewater disposal basin 1, agitator comprises the stir shaft 16 be fixed on bottom wastewater disposal basin 1 and the paddle 17 be arranged on stir shaft 16.
In the utility model, described bipolar membrane electrodialysis film group device 8 is provided with heat sink 11.
In the utility model, described heat sink 11 is interchanger.
In the utility model, described filtration unit I 4 is flame filter press, and filtration unit II 5 is PP microporous filter.Flame filter press and PP microporous filter are physical filtering, can filter out a certain size the large granular impurity in waste liquid and suspended substance.
In the utility model, the diameter 0.45um of PP micropore filtering film in described PP microporous filter.
In the utility model, also comprise sulfuric acid storage tank 12 and alkali storage tank 13, the acid end that goes out of described acid recovery pipeline 9 is communicated with sulfuric acid storage tank 12, and the alkali end that goes out of alkali collection pipeline 10 is communicated with alkali storage tank 13.
In use, stir shaft 16 is connected with the motor output shaft of wastewater disposal basin 1 outside the utility model, and motor powered stir shaft 16 rotates, and keeps the waste liquid in wastewater disposal basin 1 even by paddle 17.
Claims (6)
1. one kind is reclaimed the system of soda acid from glass production sewage, it is characterized in that: comprise wastewater disposal basin (1), coagulant precipitation pond (2), filtration unit I (3), PH equalizing tank (4), filtration unit II (5), crystallization apparatus (6), dissolving tank (7), bipolar membrane electrodialysis film group device (8), electrodialysis concentrating unit (15), evaporation concentration device (15), retrieval of sulfuric acid pipeline (9) and alkali collection pipeline (10), the output terminal of described wastewater disposal basin (1) is communicated with the input terminus of coagulant precipitation pond (2), the output terminal of described coagulant precipitation pond (2) is communicated with the input terminus of filtration unit I (3), the output terminal of filtration unit I (3) is communicated with the input terminus of PH equalizing tank (4), the output terminal of PH equalizing tank (4) is communicated with the input terminus of filtration unit II (5), the output terminal of filtration unit II (5) is communicated with the input terminus of crystallization apparatus (6), the output terminal of crystallization apparatus (6) is communicated with the input terminus of dissolving tank (7), the output terminal of dissolving tank (7) is communicated with the input terminus of bipolar membrane electrodialysis film group device (8), the sulfuric acid end that goes out of described bipolar membrane electrodialysis film group device (8) is communicated with the sulfuric acid end that enters of electrodialysis concentrating unit (14), go out alkali end to be communicated with the alkali end that enters of electrodialysis concentrating unit (14), described electrodialysis concentrating unit (14) go out sulfuric acid end with go out alkali end respectively with the entering sulfuric acid end and enter alkali end and be communicated with of evaporation concentration device (15), the going out sulfuric acid end and go out alkali end and be communicated with alkali collection pipeline (10) with retrieval of sulfuric acid pipeline (9) respectively of described evaporation concentration device (15), described wastewater disposal basin is provided with agitator in (1), agitator comprises the stir shaft (16) being fixed on wastewater disposal basin (1) bottom and the paddle (17) be arranged on stir shaft (16).
2. a kind of system reclaiming soda acid from glass production sewage according to claim 1, is characterized in that: described bipolar membrane electrodialysis film group device (8) is provided with heat sink (11).
3. a kind of system reclaiming soda acid from glass production sewage according to claim 2, is characterized in that: described heat sink (11) is interchanger.
4. a kind of system reclaiming soda acid from glass production sewage according to claim 1, is characterized in that: described filtration unit I (3) is flame filter press, and filtration unit II (5) is PP microporous filter.
5. a kind of system reclaiming soda acid from glass production sewage according to claim 4, is characterized in that: the diameter 0.22um-0.45um of PP micropore filtering film in described PP microporous filter.
6. a kind of system reclaiming soda acid from glass production sewage according to claim 1, it is characterized in that: also comprise sulfuric acid storage tank (12) and alkali storage tank (13), the acid end that goes out of described acid recovery pipeline (9) is communicated with sulfuric acid storage tank (12), and the alkali end that goes out of alkali collection pipeline (10) is communicated with alkali storage tank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718710.3U CN204265593U (en) | 2014-11-26 | 2014-11-26 | A kind of system reclaiming soda acid from glass production sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420718710.3U CN204265593U (en) | 2014-11-26 | 2014-11-26 | A kind of system reclaiming soda acid from glass production sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204265593U true CN204265593U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420718710.3U Expired - Fee Related CN204265593U (en) | 2014-11-26 | 2014-11-26 | A kind of system reclaiming soda acid from glass production sewage |
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| Country | Link |
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| CN (1) | CN204265593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621763A (en) * | 2014-11-26 | 2016-06-01 | 成都锦汇科技有限公司 | System for recovering acid and alkali from glass production sewage |
-
2014
- 2014-11-26 CN CN201420718710.3U patent/CN204265593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621763A (en) * | 2014-11-26 | 2016-06-01 | 成都锦汇科技有限公司 | System for recovering acid and alkali from glass production sewage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20151126 |