CN105645550A - Recycling technology of acid waste water produced by resin tower regeneration in chlor-alkali industry - Google Patents
Recycling technology of acid waste water produced by resin tower regeneration in chlor-alkali industry Download PDFInfo
- Publication number
- CN105645550A CN105645550A CN201610183966.2A CN201610183966A CN105645550A CN 105645550 A CN105645550 A CN 105645550A CN 201610183966 A CN201610183966 A CN 201610183966A CN 105645550 A CN105645550 A CN 105645550A
- Authority
- CN
- China
- Prior art keywords
- waste water
- acid
- acid waste
- resin tower
- dechlorination
- 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
Links
Classifications
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- 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)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a recycling technology of acid waste water produced by resin tower regeneration in chlor-alkali industry. The recycling technology is characterized in that the acid waste water produced by the resin tower regeneration each day enters an acid waste water tank, a pipeline connected to a saline water discharge tank is arranged at the outlet of an acid waste water pump, a pipeline connected with the outlet pipeline of a dechlorination system is arranged at the discharge outlet of the saline water discharge tank, the acid waste water and recycled chlorine water are guided into a light saline water system through the pump at the same time, acid is added to regulate pH, and the processed waste water is delivered to the dechlorination system for dechlorination. The recycling technology has the advantages that the acid waste water is recycled to the maximum extent by using an existing production system, the acid pH of the acid waste water is fully utilized, and the use amount of high-purity acid is lowered reasonably; the recycling technology is low in investment cost, only simple pipe connection is needed to achieve waste water recycling, and high-purity hydrochloric acid is saved.
Description
Technical field
The present invention relates to a kind of chlor-alkali industry resin tower regenerated acidic waste water reclamation and utilize technology, it is primarily directed to the acid waste water that chlor-alkali industry electrolysis unit secondary brine resin tower produces in regenerative process to carry out rationalizing and reclaim, belongs to waste water reclamation and utilize technical field.
Background technology
Major part chlor-alkali industry is when design, the acid waste water produced when being regenerated by resin tower carries out discharging to sewage disposal system, that is: the acid waste water that resin tower produces every day in regenerative process enters spent acidic water pot, then beat with spent acidic water pump process to sewage disposal system after carry out discharging (see accompanying drawing 1). Each enterprise strengthened water saving dynamics in recent years, major part the acid waste water produced in resin tower regenerative process is taked in acidic and alkaline waste water and pH value reach neutrality after deliver to primary brine salt and recycle, although the method reaches the purpose of waste water reclamation, but early stage equipment investment costly and needs special messenger to monitor in follow-up and in control.
Summary of the invention
The invention aims to the maximized acid waste water that realizes utilizes existing production system effectively to recycle, what make full use of that the acid pH feature of acid waste water reasonably reduces high purity acid makes consumption simultaneously, it is provided that a kind of chlor-alkali industry resin tower regenerated acidic waste water reclamation utilizes technology.
Technical scheme is as follows:
The acid waste water produced in resin tower regenerative process every day enters spent acidic water pot, pump discharge at spent acidic water pump configures a pipeline connecting brine discharge groove, utilize the discharging hole piece pipeline being connected to dechlorination system outlet line of configuration of brine discharge groove, utilize pump the chlorine water of acid waste water and recovery to be brought light salt brine system into simultaneously, after then adding acid for adjusting pH value, deliver to dechlorination system dechlorination.
The invention have the advantage that the maximized acid waste water that realizes utilizes existing production system effectively to recycle, take full advantage of the acid pH feature of acid waste water simultaneously, that reasonably reduces high purity acid makes consumption. Investment cost of the present invention is few, only need to carry out simple pipe arrangement connection, can realize waste water reclamation and use, and reaches to save the purpose of high purity hydrochloric acid.
Accompanying drawing explanation
Fig. 1 is the process chart of prior art;
Fig. 2 is the process chart of invention.
Detailed description of the invention
With reference to accompanying drawing 2, the acid waste water produced in resin tower regenerative process every day enters spent acidic water pot D-165, the pipeline of brine discharge groove D-280 is connected spent acidic water pump P-165 pump discharge one, utilize a brine discharge groove D-280 tank discharging hole piece CPVC pipeline being connected to dechlorination system D-317 outlet line of configuration, utilize pump P-317 the chlorine water of acid waste water and recovery to be brought light salt brine system into simultaneously, add acid for adjusting pH value between 1.5 �� 0.2, being then sent to dechlorination system dechlorination.
Claims (1)
1. a chlor-alkali industry resin tower regenerated acidic waste water reclamation utilizes technology, it is characterized in that: the acid waste water produced in resin tower regenerative process every day enters spent acidic water pot, pump discharge at spent acidic water pump configures a pipeline connecting brine discharge groove, utilize the discharging hole piece pipeline being connected to dechlorination system outlet line of configuration of brine discharge groove, utilize pump the chlorine water of acid waste water and recovery to be brought light salt brine system into simultaneously, after then adding acid for adjusting pH value, deliver to dechlorination system dechlorination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183966.2A CN105645550A (en) | 2016-03-29 | 2016-03-29 | Recycling technology of acid waste water produced by resin tower regeneration in chlor-alkali industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183966.2A CN105645550A (en) | 2016-03-29 | 2016-03-29 | Recycling technology of acid waste water produced by resin tower regeneration in chlor-alkali industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645550A true CN105645550A (en) | 2016-06-08 |
Family
ID=56494833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610183966.2A Pending CN105645550A (en) | 2016-03-29 | 2016-03-29 | Recycling technology of acid waste water produced by resin tower regeneration in chlor-alkali industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105645550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628674A (en) * | 2017-10-31 | 2018-01-26 | 南通江山农药化工股份有限公司 | The categorised collection of resin tower regenerated liquid utilizes technique |
| CN108147582A (en) * | 2017-12-29 | 2018-06-12 | 攀枝花钢企欣宇化工有限公司 | Chlor-alkali resin regeneration is given up water purification method |
| CN110668626A (en) * | 2019-09-10 | 2020-01-10 | 安徽华塑股份有限公司 | Chemical industry caustic soda device wastewater treatment process |
-
2016
- 2016-03-29 CN CN201610183966.2A patent/CN105645550A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 惠会青等: "螯合树脂塔再生酸性废水的回收利用", 《环保与安全》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628674A (en) * | 2017-10-31 | 2018-01-26 | 南通江山农药化工股份有限公司 | The categorised collection of resin tower regenerated liquid utilizes technique |
| CN108147582A (en) * | 2017-12-29 | 2018-06-12 | 攀枝花钢企欣宇化工有限公司 | Chlor-alkali resin regeneration is given up water purification method |
| CN110668626A (en) * | 2019-09-10 | 2020-01-10 | 安徽华塑股份有限公司 | Chemical industry caustic soda device wastewater treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |