CN102765801A - Air catalytic oxidation treatment benzyl cyanide waste water method - Google Patents
Air catalytic oxidation treatment benzyl cyanide waste water method Download PDFInfo
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- CN102765801A CN102765801A CN2012102810080A CN201210281008A CN102765801A CN 102765801 A CN102765801 A CN 102765801A CN 2012102810080 A CN2012102810080 A CN 2012102810080A CN 201210281008 A CN201210281008 A CN 201210281008A CN 102765801 A CN102765801 A CN 102765801A
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- benzyl cyanide
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Abstract
The invention discloses an air catalytic oxidation treatment benzyl cyanide waste water method. Active carbon serves as promoter and copper sulfate solution serves as a main catalytic agent to soak the active carbon to prepare composite catalyst which is filled in an air oxidation tower. Benzyl cyanide waste water after pretreatment enters the tower from the upper portion of the tower, air is led in from the lower portion of the tower, the waste water and the air are in countercurrent contact, and water after treatment flows out form the lower portion of the tower. Copper sulfate solution with mass fraction of 15% is prepared, the copper sulfate is infiltrated in the air oxidation tower to spray and soak the activated carbon, and moisture is dried for reserve through lead-in air. The benzyl cyanide waste water after pretreatment is infiltrated in a head tank, oil water is separated again at normal temperature after settling separation, the air is led in, and airflow is kept to be stable for 10min. The benzyl cyanide waste water after pretreatment is added in an air oxidation tower, water after pretreatment is observed, the water is colorless and transparent, cyanide ion content in the water after treatment is detected, when the cyanide ion content is smaller than 0.5mg/L, the waste water is qualified, on the contrary, the waste water is disqualified. The qualified water is discharged or enters a next working procedure for comprehensive utilization.
Description
Technical field
The present invention relates to Industrial Wastewater Treatment, especially a kind of air catalytic oxidation is handled the benzyl cyanide method for waste water.
Background technology
Produce great amount of wastewater in the production process of benzyl cyanide in the industry at present, benzyl cyanide waste water need carry out harmless treatment for containing the toxic waste water of cyanogen, could get into next process or qualified discharge.The benzyl cyanide wastewater treatment method all is the traditional cyanogen method of carrying, thermal decomposition method, strong oxidizer oxidation style etc., and handling procedure is complicated, and processing costs is high, and treating processes is accompanied by unsafe factor.
Summary of the invention
The objective of the invention is for overcoming the deficiency of above-mentioned prior art, provide a kind of air catalytic oxidation to handle the benzyl cyanide method for waste water.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
A kind of air catalytic oxidation is handled the benzyl cyanide method for waste water, as promotor, soaks gac with copper-bath as Primary Catalysts with gac, is made into composite catalyst, the atmospheric oxidation tower of packing into; Pretreated benzyl cyanide waste water gets in the said tower from said tower top, and air feeds from said tower bottom, and waste water contacts with air inversion, and the water after the processing flows out from said tower bottom; The concrete operations step is following:
(1) activation of gac, preparation massfraction are 15% copper-bath, and it are squeezed into the atmospheric oxidation tower spray Immesion active carbon, and bubbling air dries up moisture content subsequent use;
(2) Wastewater Pretreatment is squeezed into header tank with benzyl cyanide waste water, separates through first grade subsides separating still, the settlement separate still of secondary, three grades of settlement separate still profit normal temperature again, makes regular check on the oil reservoir situation;
(3) oxide treatment is opened air earlier, and with in the air bubbling air oxidizing tower, steady air current 10min in the atmospheric oxidation tower; Open the benzyl cyanide waste water the waste water transferpump adds said (2) step process in the atmospheric oxidation tower after, observe, keep gas-liquid smooth, liquid flooding does not take place from the visor mouth;
(4) detect water outlet, observe the water after handling, color is a water white transparency, detects cyanide ion content in the water after handling, when said cyanide ion content qualified during less than 0.5mg/L; Otherwise, then defective;
(5) qualified water in the drain steps (4), or qualified water gets into the next procedure comprehensive utilization in the step (4).
Said step (3) air flow is 1 ~ 2m
3/ h, said benzyl cyanide wastewater flow is 2～3m
3/ h.
The invention has the beneficial effects as follows that this technology is simpler than the method for conventional process benzyl cyanide waste water, easy handling, turndown ratio is big; Use air to be oxygenant, running cost is low; Handle the waste water serialization, treat effluent is stable.This technology has that technical process is simple, cycle of operation length, save energy, essential safety, advantage such as reduce production costs.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein 1. benzyl cyanide wastewater feed mouths, 2. waste water header tank, 3. first grade subsides separating still, the 4. settlement separate still of secondary, 5. three grades of settlement separate stills, 6. atmospheric oxidation tower, 7. air feed mouth, 8. treat effluent mouth.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
A kind of air catalytic oxidation is handled the benzyl cyanide method for waste water, as promotor, soaks gac with copper-bath as Primary Catalysts with gac, is made into composite catalyst, the atmospheric oxidation tower 6 of packing into; Pretreated benzyl cyanide waste water gets in the atmospheric oxidation tower 6 from atmospheric oxidation tower 6 tops, and air feeds from atmospheric oxidation tower 6 bottoms, and waste water contacts with air inversion, and the water after the processing flows out from said tower bottom; The concrete operations step is following:
(1) activation of gac, preparation massfraction are 15% copper-bath, and it are squeezed into atmospheric oxidation tower 6 spray Immesion active carbon, moisture content are dried up subsequent use from air feed mouth 7 bubbling airs;
(2) Wastewater Pretreatment is squeezed into waste water header tank 2 with benzyl cyanide waste water through benzyl cyanide wastewater feed mouth 1, separates through the settlement separate still of first grade subsides separating still 3, secondary 4, three grades of settlement separate still 5 profit normal temperature again, makes regular check on the oil reservoir situation; Before when the oil reservoir height is at 50cm in the settlement separate still of first grade subsides separating still 3, secondary 4, the three grades of settlement separate stills 5, in time benzyl cyanide waste water being returned waste water jar;
(3) oxide treatment is opened air earlier, and in air bubbling air oxidizing tower 6, air flow quantity is 1m
3/ h, steady air current 10min in the atmospheric oxidation tower 6; Open the benzyl cyanide waste water the waste water transferpump adds said (2) step process in atmospheric oxidation tower 6 after, the benzyl cyanide wastewater flow is 2m
3/ h observes from the visor mouth, keeps gas-liquid smooth, and liquid flooding does not take place;
(4) detect water outlet, observe the water after handling, color is a water white transparency, detects cyanide ion content in the water after handling, when said cyanide ion content qualified during less than 0.5mg/L; Otherwise, then defective;
(5) qualified water in the drain steps (4), or qualified water gets into the next procedure comprehensive utilization in the step (4).
A kind of air catalytic oxidation is handled the benzyl cyanide method for waste water, as promotor, soaks gac with copper-bath as Primary Catalysts with gac, is made into composite catalyst, the atmospheric oxidation tower 6 of packing into; Pretreated benzyl cyanide waste water gets in the atmospheric oxidation tower 6 from atmospheric oxidation tower 6 tops, and air feeds from atmospheric oxidation tower 6 bottoms, and waste water contacts with air inversion, and the water after the processing flows out from said tower bottom; The concrete operations step is following:
(1) activation of gac, preparation massfraction are 15% copper-bath, and it are squeezed into atmospheric oxidation tower 6 spray Immesion active carbon, moisture content are dried up subsequent use from air feed mouth 7 bubbling airs;
(2) Wastewater Pretreatment is squeezed into waste water header tank 2 with benzyl cyanide waste water through benzyl cyanide wastewater feed mouth 1, separates through the settlement separate still of first grade subsides separating still 3, secondary 4, three grades of settlement separate still 5 profit normal temperature again, makes regular check on the oil reservoir situation; Before when the oil reservoir height is at 50cm in the settlement separate still of first grade subsides separating still 3, secondary 4, the three grades of settlement separate stills 5, in time benzyl cyanide waste water being returned waste water jar;
(3) oxide treatment is opened air earlier, and in air bubbling air oxidizing tower 6, air flow quantity is 1m
3/ h, steady air current 10min in the atmospheric oxidation tower 6; Open the benzyl cyanide waste water the waste water transferpump adds said (2) step process in atmospheric oxidation tower 6 after, the benzyl cyanide wastewater flow is 3m
3/ h observes from the visor mouth, keeps gas-liquid smooth, and liquid flooding does not take place;
(4) detect water outlet, observe the water after handling, color is a water white transparency, detects cyanide ion content in the water after handling, when said cyanide ion content qualified during less than 0.5mg/L; Otherwise, then defective;
(5) qualified water in the drain steps (4), or qualified water gets into the next procedure comprehensive utilization in the step (4).
A kind of air catalytic oxidation is handled the benzyl cyanide method for waste water, as promotor, soaks gac with copper-bath as Primary Catalysts with gac, is made into composite catalyst, the atmospheric oxidation tower 6 of packing into; Pretreated benzyl cyanide waste water gets in the atmospheric oxidation tower 6 from atmospheric oxidation tower 6 tops, and air feeds from atmospheric oxidation tower 6 bottoms, and waste water contacts with air inversion, and the water after the processing flows out from said tower bottom; The concrete operations step is following:
(1) activation of gac, preparation massfraction are 15% copper-bath, and it are squeezed into atmospheric oxidation tower 6 spray Immesion active carbon, moisture content are dried up subsequent use from air feed mouth 7 bubbling airs;
(2) Wastewater Pretreatment is squeezed into waste water header tank 2 with benzyl cyanide waste water through benzyl cyanide wastewater feed mouth 1, separates through the settlement separate still of first grade subsides separating still 3, secondary 4, three grades of settlement separate still 5 profit normal temperature again, makes regular check on the oil reservoir situation; Before when the oil reservoir height is at 50cm in the settlement separate still of first grade subsides separating still 3, secondary 4, the three grades of settlement separate stills 5, in time benzyl cyanide waste water being returned waste water jar;
(3) oxide treatment is opened air earlier, and in air bubbling air oxidizing tower 6, air flow quantity is 2m
3/ h, steady air current 10min in the atmospheric oxidation tower 6; Open the benzyl cyanide waste water the waste water transferpump adds said (2) step process in atmospheric oxidation tower 6 after, the benzyl cyanide wastewater flow is 2m
3/ h observes from the visor mouth, keeps gas-liquid smooth, and liquid flooding does not take place;
(4) detect water outlet, observe the water after handling, color is a water white transparency, detects cyanide ion content in the water after handling, when said cyanide ion content qualified during less than 0.5mg/L; Otherwise, then defective;
(5) qualified water in the drain steps (4), or qualified water gets into the next procedure comprehensive utilization in the step (4).
A kind of air catalytic oxidation is handled the benzyl cyanide method for waste water, as promotor, soaks gac with copper-bath as Primary Catalysts with gac, is made into composite catalyst, the atmospheric oxidation tower 6 of packing into; Pretreated benzyl cyanide waste water gets in the atmospheric oxidation tower 6 from atmospheric oxidation tower 6 tops, and air feeds from atmospheric oxidation tower 6 bottoms, and waste water contacts with air inversion, and the water after the processing flows out from said tower bottom; The concrete operations step is following:
(1) activation of gac, preparation massfraction are 15% copper-bath, and it are squeezed into atmospheric oxidation tower 6 spray Immesion active carbon, moisture content are dried up subsequent use from air feed mouth 7 bubbling airs;
(2) Wastewater Pretreatment is squeezed into waste water header tank 2 with benzyl cyanide waste water through benzyl cyanide wastewater feed mouth 1, separates through the settlement separate still of first grade subsides separating still 3, secondary 4, three grades of settlement separate still 5 profit normal temperature again, makes regular check on the oil reservoir situation; Before when the oil reservoir height is at 50cm in the settlement separate still of first grade subsides separating still 3, secondary 4, the three grades of settlement separate stills 5, in time benzyl cyanide waste water being returned waste water jar;
(3) oxide treatment is opened air earlier, and in air bubbling air oxidizing tower 6, air flow quantity is 2m
3/ h, steady air current 10min in the atmospheric oxidation tower 6; Open the benzyl cyanide waste water the waste water transferpump adds said (2) step process in atmospheric oxidation tower 6 after, the benzyl cyanide wastewater flow is 3m
3/ h observes from the visor mouth, keeps gas-liquid smooth, and liquid flooding does not take place;
(4) detect water outlet, observe the water after handling, color is a water white transparency, detects cyanide ion content in the water after handling, when said cyanide ion content qualified during less than 0.5mg/L; Otherwise, then defective;
(5) qualified water in the drain steps (4), or qualified water gets into the next procedure comprehensive utilization in the step (4).
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (2)
1. an air catalytic oxidation is handled the benzyl cyanide method for waste water, it is characterized in that, as promotor, soaks gac with copper-bath as Primary Catalysts with gac, is made into composite catalyst, the atmospheric oxidation tower of packing into; Pretreated benzyl cyanide waste water gets in the said tower from said tower top, and air feeds from said tower bottom, and waste water contacts with air inversion, and the water after the processing flows out from said tower bottom; The concrete operations step is following:
(1) activation of gac, preparation massfraction are 15% copper-bath, and it are squeezed into the atmospheric oxidation tower spray Immesion active carbon, and bubbling air dries up moisture content subsequent use;
(2) Wastewater Pretreatment is squeezed into the waste water header tank with benzyl cyanide waste water, separates through first grade subsides separating still, the settlement separate still of secondary, three grades of settlement separate still profit normal temperature again, makes regular check on the oil reservoir situation;
(3) oxide treatment is opened air earlier, in air bubbling air oxidizing tower, and steady air current 10min in the atmospheric oxidation tower; Open the benzyl cyanide waste water the waste water transferpump adds said (2) step process in the atmospheric oxidation tower after, observe, keep gas-liquid smooth, liquid flooding does not take place from the visor mouth;
(4) detect water outlet, observe the water after handling, color is a water white transparency, detects cyanide ion content in the water after handling, when said cyanide ion content qualified during less than 0.5mg/L; Otherwise, then defective;
(5) qualified water in the drain steps (4), or qualified water gets into the next procedure comprehensive utilization in the step (4).
2. a kind of air catalytic oxidation as claimed in claim 1 is handled the benzyl cyanide method for waste water, it is characterized in that said step (3) air flow is 1 ~ 2m
3/ h, the benzyl cyanide wastewater flow is 2～3m in the said step (3)
3/ h.
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| CN2012102810080A CN102765801A (en) | 2012-08-09 | 2012-08-09 | Air catalytic oxidation treatment benzyl cyanide waste water method |
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| CN2012102810080A CN102765801A (en) | 2012-08-09 | 2012-08-09 | Air catalytic oxidation treatment benzyl cyanide waste water method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540077A (en) * | 2016-06-27 | 2018-01-05 | 中国石油化工股份有限公司 | A kind for the treatment of by catalytic oxidation in 3,3 '-dichlorobenzidine hydrochloride with waste water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272185A (en) * | 1969-09-12 | 1972-04-26 | Zellweger Uster Ag | A process for the catalytic detoxication of aqueous cyanide solution |
| US3817862A (en) * | 1970-10-16 | 1974-06-18 | Krupp Gmbh | Method for treating waste waters |
| US4203835A (en) * | 1977-08-25 | 1980-05-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Waste water treatment method using activated carbon |
| CN1059133A (en) * | 1991-07-22 | 1992-03-04 | 国营黄金管理局长春黄金研究所 | The catalystic oxidation activated carbon method of Treatment of Cyanide-containing Wastewater |
| CN101601998A (en) * | 2009-06-11 | 2009-12-16 | 浙江省环境保护科学设计研究院 | A kind of Preparation of catalysts method that is used for treating high-concentration organic wastewater through catalytic oxidation |
-
2012
- 2012-08-09 CN CN2012102810080A patent/CN102765801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272185A (en) * | 1969-09-12 | 1972-04-26 | Zellweger Uster Ag | A process for the catalytic detoxication of aqueous cyanide solution |
| US3817862A (en) * | 1970-10-16 | 1974-06-18 | Krupp Gmbh | Method for treating waste waters |
| US4203835A (en) * | 1977-08-25 | 1980-05-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Waste water treatment method using activated carbon |
| CN1059133A (en) * | 1991-07-22 | 1992-03-04 | 国营黄金管理局长春黄金研究所 | The catalystic oxidation activated carbon method of Treatment of Cyanide-containing Wastewater |
| CN101601998A (en) * | 2009-06-11 | 2009-12-16 | 浙江省环境保护科学设计研究院 | A kind of Preparation of catalysts method that is used for treating high-concentration organic wastewater through catalytic oxidation |
Non-Patent Citations (1)
| Title |
|---|
| 汪玲，等: "载铜活性炭处理含氰废水的试验研究", 《三峡环境与生态》, vol. 3, no. 1, 31 January 2010 (2010-01-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540077A (en) * | 2016-06-27 | 2018-01-05 | 中国石油化工股份有限公司 | A kind for the treatment of by catalytic oxidation in 3,3 '-dichlorobenzidine hydrochloride with waste water |
| CN107540077B (en) * | 2016-06-27 | 2020-08-21 | 中国石油化工股份有限公司 | Catalytic oxidation treatment method for neutralizing wastewater by 3, 3' -dichlorobenzidine hydrochloride |
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Application publication date: 20121107 |