CN101844828A - Treatment method for efficient catalytic oxidation of chlor-alkali industrial wastewater - Google Patents
Treatment method for efficient catalytic oxidation of chlor-alkali industrial wastewater Download PDFInfo
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- CN101844828A CN101844828A CN201010183996.6A CN201010183996A CN101844828A CN 101844828 A CN101844828 A CN 101844828A CN 201010183996 A CN201010183996 A CN 201010183996A CN 101844828 A CN101844828 A CN 101844828A
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- chlor
- waste water
- oxidizing
- nickel oxide
- alkali industrial
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- 239000003513 alkali Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 18
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 11
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 10
- 230000003647 oxidation Effects 0.000 title claims abstract description 10
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002351 wastewater Substances 0.000 claims abstract description 21
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 15
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000001590 oxidative effect Effects 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229910020068 MgAl Inorganic materials 0.000 claims description 2
- 239000005708 Sodium hypochlorite Substances 0.000 abstract 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000003206 sterilizing agent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a treatment method for high-efficiency catalytic oxidation of chlor-alkali industrial wastewater, which mainly decomposes sodium hypochlorite in chlor-alkali industrial wastewater by adding a nickel oxide catalyst with a high-efficiency surface and degrades a small amount of other pollutants in the wastewater. The invention relates to a treatment method for efficiently catalyzing and oxidizing chlor-alkali industrial wastewater, which comprises the step of enabling alkaline wastewater containing sodium hypochlorite to stand at an airspeed of 1.6-2.6 h from bottom to top-1Continuously passing through a catalytic oxidation reaction bed filled with the catalyst.
Description
Technical field
The present invention relates to a kind of processing method of industrial waste water, relate to a kind of treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water specifically.
Background technology
Chlorine industry is one of the most basic chemical industry, polyvinyl chloride (PVC) RESINS, caustic soda, hydrochloric acid.Chlorine-alkali products such as liquid chlorine all are national economy and the requisite material of people's lives, occupy critical role in national economy and national defense construction, but the chlor-alkali industry environmental pollution also is bigger simultaneously.Along with the enhancing of people's environmental protection consciousness, pollution of being caused in the chemical process based on chlorine industry and products thereof is more and more paid attention to the influence that environment causes.Therefore, when giving full play to chlorine industry and the effect of Chemical Manufacture in the national economic development, should reduce its disadvantageous effect to environment based on chlorine industry as far as possible.
In chlorine industry, can produce the alkaline waste water that contains clorox in a large number; Clorox is also used in a large number as SYNTHETIC OPTICAL WHITNER and sterilizing agent, also contains a large amount of chlorine residue in the waste water of discharge.The discharging of being rich in clorox waste water has not only caused a large amount of wastes of water resources, and environment and human lives have also been caused very big harm.Therefore, the discharging that contains the alkaline waste water of clorox has been subjected to strict control.Catalytic oxidation is the state-of-the-art technology of chemical field and a kind of efficient oxidation technology that corresponding efficient surface catalyst combines, and is the excellent means of handling wastewater of chemical industry with high concentration.The essence of catalytic oxidation is exactly the decomposition generation katalysis of catalyzer to oxygenant, the chemical reaction in the quickening waste water between organic pollutant and the oxygenant.Catalytic oxidation can reduce the chemical oxygen demand of waste water, improve the biodegradability of waste water, and cost is lower, has the favorable industrial prospect.
Summary of the invention:
The objective of the invention is at containing clorox in a large amount of trade effluents that discharge in the chlorine industry, bring the phenomenon of very big influence to environment and human lives, a kind of treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water is provided, mainly be to decompose clorox in the chlor-alkali industrial waste water, simultaneously a small amount of other pollutents in the waste water degraded by the nickel oxide catalyst that interpolation has an efficient surface.
Technical scheme of the present invention is as follows:
The treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water of the present invention, its step are that the alkaline waste water that will contain clorox is 1.6~2.6h with air speed from bottom to top
-1Continuously by the catalytic oxidation bed of catalyzer is housed.
The treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water of the present invention, its further technical scheme are that described catalyzer is nickel oxide loaded catalyzer; Further technical scheme is that described nickel oxide loaded Preparation of catalysts method is as follows again: earlier with the 100g carrier impregnation at 30~40% Ni (NO
3)
2In the solution, placing 10~15 hours, dry naturally, is in 5~10% the NaOH aqueous solution again to concentration expressed in percentage by weight with the air dried carrier impregnation, at the uniform velocity stirs under the normal temperature, and dipping time is 12~20 hours; And then, place 300~400 ℃ of following roastings of retort furnace 4~5 hours at 105~115 ℃ times dry 12~15 hours, and naturally cool to room temperature, promptly obtain nickel oxide loaded catalyzer; Further technical scheme is that described carrier is preferably Al again
2O
3, MgO or MgAl
2O
4
The treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water of the present invention, to account for the per-cent of nickel oxide loaded catalyzer total mass be 10~15% to the quality of burning nickel in its described nickel oxide loaded catalyzer.
Principle of the present invention is as follows:
Clorox decomposition reaction of the present invention is:
NaClO→NaCl+[O]
Nickel oxide catalytic decomposition clorox mechanism is:
The present invention mainly has following beneficial effect:
(1) preparation of loading type nickel oxide catalyst is simple, only needs simple dipping, roasting to use
(2) the present invention is in the chlor-alkali wastewater treatment that contains clorox, and technology is simple, running cost is cheap
(3), in decomposing waste water, in the clorox, can also make full use of and decompose the clorox generation according to method of the present invention
Active oxygen atom a small amount of other pollutent in the chlor-alkali waste water of degrading, reach the effect of the treatment of wastes with processes of wastes against one another.
Description of drawings
Fig. 1 is a treatment process process flow diagram of the present invention.
Among the figure: 1. contain clorox chlor-alkali waste water, 2. reservoir, 3. peristaltic pump, 4. jacketed reactor 5. goes out water storage tank, 6. circulation thermostatic water-circulator bath.
Embodiment:
Further specify the present invention below by specific examples, method for preparing catalyst used among the embodiment is as follows:
Earlier with 100gAl
2O
3Impregnated with particles is at 35% Ni (NO
3)
2In the solution, placing 10h, dry naturally, is in 7.5% the NaOH aqueous solution again to concentration expressed in percentage by weight with the air dried carrier impregnation, at the uniform velocity stirring under the normal temperature, and dipping time is 12h.At 110 ℃ of following dry 12h, place 350 ℃ of following roasting 4h of retort furnace, naturally cool to room temperature, the load that finally obtains this experiment usefulness has the aluminum trioxide catalyst of nickel, burns till afterwards that the weight metal percentage composition is 14% in the sample.
Embodiment 1: aluminium sesquioxide load nickel oxide catalyst catalytic oxidation treatment contains clorox chlor-alkali waste water
Reaction is to carry out in the reactor that is material with glass.The chlor-alkali waste water that will contain clorox places reservoir, utilizes peristaltic pump to regulate air speed, allow contain clorox alkaline waste water from bottom to top air speed be 1.6h
-1By the catalytic oxidation bed of 120g catalyzer is housed, catalyst decomposes the chlorine bleach liquor, the results are shown in Table 1 continuously.
Air speed sees Table 1 among the embodiment 2-6, and other condition and method the results are shown in Table 1 with embodiment 1:
Table 1 catalyzing oxidizing degrading contains clorox chlor-alkali waste water effect
Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
Embodiment 6 | |
Air speed h -1 | ??1.6 | ??1.8 | ??2.0 | ??2.2 | ??2.4 | ??2.6 |
NaClO transformation efficiency % | ??98.8 | ??97.6 | ??96.7 | ??77.2 | ??66.5 | ??58.3 |
From table experimental data as can be seen, chlor-alkali industrial waste water is with less than 2.0h
-1Air speed flow through the fixed-bed reactor of 120g catalyzer are housed after, the clorox degradation rate reaches more than 95% in the waste water, effect is remarkable.
Claims (5)
1. the treatment process of an efficiently catalyzing and oxidizing chlor-alkali industrial waste water is characterized in that may further comprise the steps:
The alkaline waste water that will contain clorox is 1.6~2.6h with air speed from bottom to top
-1Continuously by the catalytic oxidation bed of catalyzer is housed.
2. the treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water according to claim 1 is characterized in that described catalyzer is nickel oxide loaded catalyzer.
3. the treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water according to claim 2 is characterized in that described nickel oxide loaded Preparation of catalysts method is as follows: earlier with the 100g carrier impregnation at 30~40% Ni (NO
3)
2In the solution, placing 10~15 hours, dry naturally, is in 5~10% the NaOH aqueous solution again to concentration expressed in percentage by weight with the air dried carrier impregnation, at the uniform velocity stirs under the normal temperature, and dipping time is 12~20 hours; And then, place 300~400 ℃ of following roastings of retort furnace 4~5 hours at 105~115 ℃ times dry 12~15 hours, and naturally cool to room temperature, promptly obtain nickel oxide loaded catalyzer.
4. the treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water according to claim 3 is characterized in that described carrier is Al
2O
3, MgO or MgAl
2O
4
5. the treatment process of efficiently catalyzing and oxidizing chlor-alkali industrial waste water according to claim 3, the per-cent that the quality that it is characterized in that burning nickel in the described nickel oxide loaded catalyzer accounts for nickel oxide loaded catalyzer total mass is 10~15%.
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CN2010101839966A CN101844828B (en) | 2010-05-27 | 2010-05-27 | Treatment method for efficient catalytic oxidation of chlor-alkali industrial wastewater |
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CN101844828B CN101844828B (en) | 2011-12-14 |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102992468A (en) * | 2012-11-27 | 2013-03-27 | 常州大学 | Method for treating chlorine-containing waste water through catalytic oxidation |
CN104084026A (en) * | 2014-07-18 | 2014-10-08 | 贵州大龙银星汞业有限责任公司 | Processing method of chlorine-containing tail gas produced by mercuric chloride production |
CN104085904A (en) * | 2014-07-18 | 2014-10-08 | 贵州大龙银星汞业有限责任公司 | Method for decomposing sodium hypochlorite |
CN105797702A (en) * | 2014-12-30 | 2016-07-27 | 上海洗霸科技股份有限公司 | Novel supported catalyst, preparation method therefor and use of novel supported catalyst |
CN106345485A (en) * | 2016-08-25 | 2017-01-25 | 万华化学集团股份有限公司 | Catalyst for catalytic oxidation treatment of organic waste water, and preparation method and purpose thereof |
CN106396075A (en) * | 2016-10-27 | 2017-02-15 | 华中科技大学 | Method for catalytically degrading organic wastewater by using sodium hypochlorite |
CN106492785A (en) * | 2016-08-31 | 2017-03-15 | 浙江奇彩环境科技股份有限公司 | A kind of catalyst and its method of wastewater treatment for dye wastewater treatment |
CN106673253A (en) * | 2016-12-14 | 2017-05-17 | 安徽华塑股份有限公司 | Treatment method for chlorine alkali industrial wastewater catalytic oxidation |
CN112299651A (en) * | 2020-10-10 | 2021-02-02 | 浙江工业职业技术学院 | Method for treating rice milk water for brewing yellow rice wine |
CN114682262A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Hypochlorite decomposition catalyst |
CN115010286A (en) * | 2021-03-05 | 2022-09-06 | 万华化学集团股份有限公司 | Catalytic dechlorination process for dilute brine at outlet of electrolytic cell |
WO2022183513A1 (en) * | 2021-03-05 | 2022-09-09 | 万华化学集团股份有限公司 | Catalytic dechlorination process for brackish water at outlet of electrolytic cell |
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2010
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CN1772648A (en) * | 2005-09-29 | 2006-05-17 | 江苏工业学院 | Normal temperature and normal pressure ClO2 catalyzed oxidation process of treating high concentration organic waste water |
CN101559369A (en) * | 2009-05-21 | 2009-10-21 | 中国矿业大学(北京) | Supported catalyst for coal pyrolysis hydrogen production and preparation method thereof |
Non-Patent Citations (1)
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102992468A (en) * | 2012-11-27 | 2013-03-27 | 常州大学 | Method for treating chlorine-containing waste water through catalytic oxidation |
CN104084026A (en) * | 2014-07-18 | 2014-10-08 | 贵州大龙银星汞业有限责任公司 | Processing method of chlorine-containing tail gas produced by mercuric chloride production |
CN104085904A (en) * | 2014-07-18 | 2014-10-08 | 贵州大龙银星汞业有限责任公司 | Method for decomposing sodium hypochlorite |
CN104084026B (en) * | 2014-07-18 | 2016-01-27 | 贵州大龙银星汞业有限责任公司 | The processing method of chloride tail gas in a kind of mercury chloride production |
CN105797702A (en) * | 2014-12-30 | 2016-07-27 | 上海洗霸科技股份有限公司 | Novel supported catalyst, preparation method therefor and use of novel supported catalyst |
US11059033B2 (en) | 2016-08-25 | 2021-07-13 | Wanhua Chemical Group Co., Ltd. | Catalyst for catalytic oxidation treatment of organic wastewater, preparation method thereof, and application thereof |
CN106345485A (en) * | 2016-08-25 | 2017-01-25 | 万华化学集团股份有限公司 | Catalyst for catalytic oxidation treatment of organic waste water, and preparation method and purpose thereof |
CN106345485B (en) * | 2016-08-25 | 2018-12-07 | 万华化学集团股份有限公司 | A kind of catalyst and its preparation method and application for catalytic oxidation treatment organic wastewater |
CN106492785A (en) * | 2016-08-31 | 2017-03-15 | 浙江奇彩环境科技股份有限公司 | A kind of catalyst and its method of wastewater treatment for dye wastewater treatment |
CN106396075A (en) * | 2016-10-27 | 2017-02-15 | 华中科技大学 | Method for catalytically degrading organic wastewater by using sodium hypochlorite |
CN106673253A (en) * | 2016-12-14 | 2017-05-17 | 安徽华塑股份有限公司 | Treatment method for chlorine alkali industrial wastewater catalytic oxidation |
CN112299651A (en) * | 2020-10-10 | 2021-02-02 | 浙江工业职业技术学院 | Method for treating rice milk water for brewing yellow rice wine |
CN114682262A (en) * | 2020-12-29 | 2022-07-01 | 中国石油化工股份有限公司 | Hypochlorite decomposition catalyst |
CN114682262B (en) * | 2020-12-29 | 2023-09-01 | 中国石油化工股份有限公司 | Hypochlorite decomposition catalyst |
CN115010286A (en) * | 2021-03-05 | 2022-09-06 | 万华化学集团股份有限公司 | Catalytic dechlorination process for dilute brine at outlet of electrolytic cell |
WO2022183513A1 (en) * | 2021-03-05 | 2022-09-09 | 万华化学集团股份有限公司 | Catalytic dechlorination process for brackish water at outlet of electrolytic cell |
CN115010286B (en) * | 2021-03-05 | 2024-05-07 | 万华化学集团股份有限公司 | Catalytic dechlorination process for dilute brine at outlet of electrolytic tank |
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