CN107954562A - A kind of method of efficient process arsenic wastewater from chemical industry - Google Patents
A kind of method of efficient process arsenic wastewater from chemical industry Download PDFInfo
- Publication number
- CN107954562A CN107954562A CN201711168247.4A CN201711168247A CN107954562A CN 107954562 A CN107954562 A CN 107954562A CN 201711168247 A CN201711168247 A CN 201711168247A CN 107954562 A CN107954562 A CN 107954562A
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- China
- Prior art keywords
- arsenic
- chemical industry
- wastewater
- vacuum distillation
- arsenic wastewater
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/02—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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/103—Arsenic compounds
-
- 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
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A kind of method of efficient process arsenic wastewater from chemical industry, high salt arsenic-containing waste water is handled using vacuum distillation, and arsenic wastewater from chemical industry first is added standing groove is staticly settled, and is layered arsenic wastewater from chemical industry；Then vacuum distillation processing will be carried out in liquid pump among the arsenic wastewater from chemical industry after stratification to vacuum distillation concentration kettle, condensate liquid water quality reaches arsenic content and is less than 100mg/L, Na after vacuum distillation+Content is less than the arsenic chemical products reuse water standard of 50mg/L.Present invention process equipment is simple, and production cost is low, non-secondary pollution, and condensate liquid water quality can reach arsenic chemical products reuse water quality requirement.
Description
Technical field
The present invention relates to process for treating industrial waste water technical field.
Background technology
The technology of existing processing arsenic wastewater from chemical industry mainly has lime precipitation and the concentration way of distillation.Lime precipitation handles arsenic
Desalination effect is undesirable during wastewater from chemical industry, influences the normal reuse of water after processing.In lime precipitation equipment actual motion, due to
The impurity such as calcium, magnesium is excessive in water, be easy to cause equipment pipe blocking, influences normally to produce.Concentration way of distillation processing arsenic chemical industry gives up
Waste water is set to reach fluidized state during water, required energy consumption is big, and operating cost is high, and concentration temperature in the kettle is excessive, to subsequently setting
Standby condensing tower requirement is stringent, can also produce secondary tail gas, secondary pollution is caused to environment.
The content of the invention
Present invention aim to address the above-mentioned problems of the prior art, there is provided a kind of process equipment is simple, is produced into
This low, non-secondary pollution, condensate liquid water quality can reach the method for the processing arsenic wastewater from chemical industry of arsenic chemical products reuse water quality requirement.
The purpose of the present invention is achieved through the following technical solutions：
A kind of method of efficient process arsenic wastewater from chemical industry, handles high salt arsenic-containing waste water, method and step is such as using vacuum distillation
Under：
(1) arsenic wastewater from chemical industry is added standing groove to be staticly settled, is layered arsenic wastewater from chemical industry；
(2) will be carried out in liquid pump among the arsenic wastewater from chemical industry after stratification to vacuum distillation concentration kettle at vacuum distillation
Reason, condensate liquid water quality reaches arsenic content and is less than 100mg/L, Na after vacuum distillation+Arsenic chemical products of the content less than 50mg/L are returned
Use water standard.
When the time that the method for the present invention is staticly settled arsenic wastewater from chemical industry addition standing groove is 10-12 small；Decompression is steamed
The vacuum for evaporating concentration kettle is 0.02 ± 0.002MPa, and temperature in the kettle maintains 88 ± 2 DEG C, warming-up section steam pressure
0.15MPa -0.2MPa, soaking zone heating steam pressure 0.05MPa.
The present invention has the following advantages：
1st, reduced pressure distillation technique is made full use of to distill processing arsenic wastewater from chemical industry at a lower temperature, it is not necessary to high-temperature heating dress
Put, save the energy；High temperature resistant is not required in container, and cost is low；Arsenic wastewater from chemical industry is handled using vacuum distillation, obtained condensate liquid
Water quality can reach arsenic chemical products reuse requirement, can be recycled, and realize that arsenic chemical products produce wastewater zero discharge；
2nd, arsenic wastewater from chemical industry is handled using reduced pressure distillation process, boiling temperature reduces by 10 DEG C or so compared with air-distillation, energy
Consume low, can effectively reduce arsenic chemical wastewater treatment cost；The steam produced in kettle can be condensed effectively, emission-free secondary pollution；
3rd, special installation need not be put into, investment is low with use and maintenance expense, and technological process is simple, convenient operating maintenance, fortune
Row cost is low, treatment effect is stablized.
Embodiment
A kind of method of efficient process arsenic wastewater from chemical industry, method and step are as follows：
(1) arsenic wastewater from chemical industry is added stand groove staticly settle 10-12 it is small when, be layered arsenic wastewater from chemical industry.Arsenic
Work waste water stands termination in groove is stood and mainly sees that liquid layered changes, and salt is saturation in arsenic wastewater from chemical industry, in muddy before standing
Turbid shape, stand 10-12 it is small when after, arsenic wastewater from chemical industry has obvious layering, and wherein organic matter floats on upper strata, mass crystallization salt meeting
Precipitation is sunken to bottom, takes middle clear liquid to be evaporated under reduced pressure, and reduces organic matter and salt brings the amount of concentration kettle into；
(2) will be carried out in liquid pump among the arsenic wastewater from chemical industry after stratification to vacuum distillation concentration kettle at vacuum distillation
Reason, condensate liquid water quality reaches arsenic chemical products reuse water standard to after being evaporated under reduced pressure.Vacuum distillation processing arsenic wastewater from chemical industry skill
Art parameter is as follows：Warming-up section heating steam pressure 0.15-0.2MPa, temperature rise to 85 DEG C, adjust steam heated pressure
0.05MPa.Soaking zone heating steam pressure 0.05MPa, 88 ± 2 DEG C of temperature, 0.02 ± 0.002MPa of vacuum.
Embodiment 1
After when arsenic wastewater from chemical industry standing 10 is small, by liquid pump among the 20L arsenic wastewater from chemical industry after standing to small-sized vacuum distillation
Device starts to be evaporated under reduced pressure, warming-up section heating steam pressure 0.15MPa, after temperature rises to 85 DEG C, adjusts steam heated pressure
0.05MPa, is continuously heating to 88 DEG C, into soaking zone, soaking zone heating steam pressure 0.05MPa, vacuum 0.02MPa.Subtract
Arsenic content is 39mg/L, Na in the condensate liquid obtained after the completion of pressure distillation+For 19mg/L, reach arsenic chemical products reuse standard.
Embodiment 2
After when arsenic wastewater from chemical industry standing 11 is small, liquid pump to small-sized vacuum distillation among the 4L arsenic wastewater from chemical industry after standing is filled
Put and start to be evaporated under reduced pressure, warming-up section heating steam pressure 0.17MPa, after temperature rises to 85 DEG C, adjusts steam heated pressure
0.05MPa, is continuously heating to 86 DEG C, into soaking zone, soaking zone heating steam pressure 0.05MPa, vacuum 0.021MPa.Subtract
Arsenic content is 89mg/L, Na in the condensate liquid obtained after the completion of pressure distillation+For 17mg/L, reach arsenic chemical products reuse standard.
Embodiment 3
After when arsenic wastewater from chemical industry standing 12 is small, liquid pump to small-sized vacuum distillation among the 4L arsenic wastewater from chemical industry after standing is filled
Put and start to be evaporated under reduced pressure, warming-up section heating steam pressure 0.20MPa, after temperature rises to 85 DEG C, adjusts steam heated pressure
0.05MPa, is continuously heating to 90 DEG C, into soaking zone, soaking zone heating steam pressure 0.05MPa, vacuum 0.022MPa.Subtract
Arsenic content is 86mg/L, Na in the condensate liquid obtained after the completion of pressure distillation+For 19mg/L, reach arsenic chemical products reuse standard.
Claims (2)
- A kind of 1. method of efficient process arsenic wastewater from chemical industry, it is characterised in that using vacuum distillation processing high salt arsenic-containing waste water, side Method step is as follows：(1) arsenic wastewater from chemical industry is added standing groove to be staticly settled, is layered arsenic wastewater from chemical industry；(2) vacuum distillation processing will be carried out in liquid pump among the arsenic wastewater from chemical industry after stratification to vacuum distillation concentration kettle, subtracted Condensate liquid water quality reaches arsenic content and is less than 100mg/L, Na after pressure distillation+Content is less than the arsenic chemical products reuse water quality of 50mg/L Standard.
- 2. the method for a kind of efficient process arsenic wastewater from chemical industry according to claim 1, it is characterised in that by arsenic wastewater from chemical industry When the time that addition standing groove is staticly settled is 10-12 small；Be evaporated under reduced pressure the vacuum of concentration kettle for 0.02 ± 0.002MPa, temperature in the kettle maintain 88 ± 2 DEG C, warming-up section steam pressure 0.15MPa -0.2MPa, soaking zone heating vapour pressure Power 0.05MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711168247.4A CN107954562A (en) | 2017-11-21 | 2017-11-21 | A kind of method of efficient process arsenic wastewater from chemical industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711168247.4A CN107954562A (en) | 2017-11-21 | 2017-11-21 | A kind of method of efficient process arsenic wastewater from chemical industry |
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| CN107954562A true CN107954562A (en) | 2018-04-24 |
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| CN201711168247.4A Pending CN107954562A (en) | 2017-11-21 | 2017-11-21 | A kind of method of efficient process arsenic wastewater from chemical industry |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282805A (en) * | 2019-07-22 | 2019-09-27 | 红河砷业有限责任公司 | A kind of method of comprehensive utilization of waste acid containing arsenic that flue gas during smelting generates |
| CN112341496A (en) * | 2020-11-17 | 2021-02-09 | 红河砷业有限责任公司 | Method for recovering benzyl arsonic acid product by using benzyl arsonic acid waste residues |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468841A (en) * | 2007-12-27 | 2009-07-01 | 中国科学院生态环境研究中心 | Processing method for arsenic-containing water |
| WO2012047142A1 (en) * | 2010-10-05 | 2012-04-12 | Bio-Works Company Limited | Method for removing arsenic from water using polymer based matrices with chelating groups comprising metal ions |
| CN204237589U (en) * | 2014-11-26 | 2015-04-01 | 江西海宸光电科技有限公司 | Arsenic-containing waste water concentration device |
| CN104828995A (en) * | 2015-05-20 | 2015-08-12 | 中冶东方工程技术有限公司 | Treatment method of ferrous waste hydrochloric acid |
| CN107162307A (en) * | 2017-07-12 | 2017-09-15 | 赵伟洲 | A kind of sewage-treatment plant |
-
2017
- 2017-11-21 CN CN201711168247.4A patent/CN107954562A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468841A (en) * | 2007-12-27 | 2009-07-01 | 中国科学院生态环境研究中心 | Processing method for arsenic-containing water |
| WO2012047142A1 (en) * | 2010-10-05 | 2012-04-12 | Bio-Works Company Limited | Method for removing arsenic from water using polymer based matrices with chelating groups comprising metal ions |
| CN204237589U (en) * | 2014-11-26 | 2015-04-01 | 江西海宸光电科技有限公司 | Arsenic-containing waste water concentration device |
| CN104828995A (en) * | 2015-05-20 | 2015-08-12 | 中冶东方工程技术有限公司 | Treatment method of ferrous waste hydrochloric acid |
| CN107162307A (en) * | 2017-07-12 | 2017-09-15 | 赵伟洲 | A kind of sewage-treatment plant |
Non-Patent Citations (1)
| Title |
|---|
| 朱玉芹: "高砷氯化收尘溶液蒸馏脱砷的研究", 《有色金属(冶炼部分)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282805A (en) * | 2019-07-22 | 2019-09-27 | 红河砷业有限责任公司 | A kind of method of comprehensive utilization of waste acid containing arsenic that flue gas during smelting generates |
| CN112341496A (en) * | 2020-11-17 | 2021-02-09 | 红河砷业有限责任公司 | Method for recovering benzyl arsonic acid product by using benzyl arsonic acid waste residues |
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Application publication date: 20180424 |