CN111926178A - Device and method for cracking organic matters in zinc sulfate solution - Google Patents
Device and method for cracking organic matters in zinc sulfate solution Download PDFInfo
- Publication number
- CN111926178A CN111926178A CN202010801731.1A CN202010801731A CN111926178A CN 111926178 A CN111926178 A CN 111926178A CN 202010801731 A CN202010801731 A CN 202010801731A CN 111926178 A CN111926178 A CN 111926178A
- Authority
- CN
- China
- Prior art keywords
- reaction kettle
- zinc sulfate
- sulfate solution
- kettle device
- organic matters
- 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.)
- Granted
Links
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 title claims abstract description 84
- 229960001763 zinc sulfate Drugs 0.000 title claims abstract description 84
- 229910000368 zinc sulfate Inorganic materials 0.000 title claims abstract description 84
- 238000005336 cracking Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 108
- 239000000243 solution Substances 0.000 claims abstract description 103
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000003756 stirring Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 230000009471 action Effects 0.000 claims abstract description 29
- 238000003541 multi-stage reaction Methods 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 14
- 239000011550 stock solution Substances 0.000 claims abstract description 4
- 230000035484 reaction time Effects 0.000 claims description 35
- 239000005416 organic matter Substances 0.000 claims description 33
- 230000001590 oxidative effect Effects 0.000 claims description 18
- 239000012295 chemical reaction liquid Substances 0.000 claims description 14
- 238000010517 secondary reaction Methods 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 abstract description 14
- 238000007254 oxidation reaction Methods 0.000 abstract description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011701 zinc Substances 0.000 abstract description 8
- 229910052725 zinc Inorganic materials 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 229940024464 emollients and protectives zinc product Drugs 0.000 abstract description 3
- 238000009854 hydrometallurgy Methods 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/26—Refining solutions containing zinc values, e.g. obtained by leaching zinc ores
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a device and a method for cracking organic matters in a zinc sulfate solution, and the device comprises a water inlet tank, a water inlet pump, a multistage reaction kettle device, an ozone generator, a tail gas treatment device and a liquid storage tank, wherein the water inlet tank is connected with a zinc sulfate stock solution water inlet of a first-stage reaction kettle device through a liquid pipeline through the water inlet pump, the multistage reaction kettle device is arranged in a stepped manner, and an ultrasonic generator and a stirring device are arranged in the multistage reaction kettle device. The method comprises the following steps: zinc sulfate solution containing organic matters is sequentially subjected to stepwise cracking removal through a multistage reaction kettle device under the action of ultrasonic waves and ozone. The invention can effectively crack the organic matters in the zinc sulfate solution through the oxidation of ultrasonic waves and ozone under the condition of not changing the conventional zinc hydrometallurgy process, thereby achieving the purposes of improving the quality of zinc products and improving the electric efficiency. Meanwhile, the method has low cost and simple operation, and can effectively remove the organic matters in the zinc sulfate solution in a short time.
Description
Technical Field
The invention belongs to the field of nonferrous metallurgy, and particularly relates to a device and a method for cracking organic matters in a zinc sulfate solution.
Background
The zinc sulfate solution is generally used as a raw material for wet-method zinc smelting, and the wet-method zinc metallurgical process comprises three steps of zinc calcine leaching, leachate purification and electrolytic deposition. In the zinc hydrometallurgy process, some organic pollutants often float in the used zinc sulfate raw material, which seriously affects the zinc electrodeposition process and causes the consequence of low electric efficiency. With the increasing social demand for zinc ingots, how to effectively remove organic matters in a zinc sulfate solution to improve the quality of zinc products and improve the electric efficiency becomes a technical problem to be solved urgently.
The existing method for removing organic matters in zinc sulfate solution mainly comprises the following steps: physical sedimentation, activated carbon adsorption, a liquid membrane filtration method and an oxidation method, wherein the oxidation method has the advantages of low cost, simple process and strong environmental protection. The ozone oxidation method is applied to the invention as a typical representative of the oxidation method, but because ozone has the limitations of low solubility, poor ozone utilization rate, long reaction time and the like, the invention provides an ultrasonic wave reinforced oxidation process, thereby achieving the aim of comprehensively improving the ozone oxidation capability.
The existing method for removing organic matters in zinc sulfate solution mainly comprises the following steps: physical sedimentation, activated carbon adsorption, a liquid membrane filtration method and an oxidation method, wherein the oxidation method has the advantages of low cost, simple process and strong environmental protection. For example, in Chinese patent, a method for removing arsenic, iron and organic matters from a zinc sulfate solution after germanium precipitation of a zinc oxide smoke leachate is disclosed as 201911178781.2, and the application date is 2019.11.27. Meanwhile, the required temperature in the reaction kettle is too high, and the requirement on equipment is extremely strict. Finally, the pH value is narrow in effective range and difficult to regulate, and the problem cannot be ignored. The ozone oxidation method is a typical representative of the oxidation method, and is also involved in a process for removing organic matters in the zinc sulfate solution, but due to the limitations of low solubility and the like of ozone, the defects of poor ozone utilization rate, complex structure, long reaction time and the like in the treatment of the zinc sulfate solution in the prior art are caused.
Disclosure of Invention
In view of the above problems, a first object of the present invention is to provide an apparatus for cracking organic matters in a zinc sulfate solution, and another object of the present invention is to provide a method for cracking organic matters in a zinc sulfate solution.
The first purpose of the invention is realized in such a way that the device for cracking the organic matters in the zinc sulfate solution comprises a water inlet pool, a water inlet pump, a multi-stage reaction kettle device, an ozone generator, a tail gas treatment device and a liquid storage pool, wherein the water inlet pool is connected with a zinc sulfate stock solution water inlet of the first-stage reaction kettle device through the water inlet pump through a liquid pipeline; an ultrasonic generator and a stirring device are arranged in the multistage reaction kettle device, and a liquid outlet of the reaction of the final stage reaction kettle device is connected with a liquid storage tank through a liquid pipeline.
The ozone method for cracking the organic matters in the zinc sulfate solution comprises the following steps:
(1) adding the zinc sulfate solution containing organic matters into a first-stage reaction kettle device from a zinc sulfate solution water inlet, simultaneously introducing ozone into the first-stage reaction kettle device, completing preliminary organic matter oxidative cracking under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a first-stage reaction liquid.
(2) And adding the first-stage reaction liquid into a second-stage reaction kettle device through a water inlet, introducing ozone into the second-stage reaction kettle device, performing further organic matter oxidative cracking under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a second-stage reaction liquid.
(3) And adding the second-stage reaction liquid into a third-stage reaction kettle device, introducing ozone into the third-stage reaction kettle device, completely oxidizing and cracking residual organic matters under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a target solution.
(4) After the reaction is finished, the target solution is discharged from a zinc sulfate solution water outlet, and redundant ozone and tail gas enter a tail gas treatment device for treatment.
The invention has the beneficial effects that: according to the invention, under the condition that the existing zinc hydrometallurgy flow is not changed, the organic matters in the zinc sulfate solution are effectively cracked through the oxidation action of ultrasonic waves and ozone, so that the purposes of improving the quality of zinc products and improving the electric efficiency are achieved; meanwhile, the method has low cost and simple operation, and can effectively remove the organic matters in the zinc sulfate solution in a short time;
the multistage reaction kettles in the cracking device are arranged in a stepped mode, the reaction time and the ultrasonic power are gradually reduced along with the number of the reaction stages, the first reaction liquid in the first-stage reaction kettle device enters the second reaction kettle device along the liquid pipeline for further cracking reaction, the obtained second reaction liquid enters the third reaction kettle device for further cracking reaction … … of residual organic matters until the organic matters are cracked and removed completely. The method has high organic matter cracking efficiency, can crack the organic matter completely, can effectively improve the reaction contact area by the gradient cracking of the organic matter by the multistage reaction kettle device, improves the efficiency, reduces the reaction time and the ultrasonic power used by each reaction kettle device along with the reaction stage number, and has lower total energy consumption than the complete energy consumption of the reaction in the first-stage reaction kettle device;
in addition, the invention overcomes the problem that ozone has low solubility and is not easy to react with the solution through the enhanced cracking function and the stirring function of the ultrasonic wave in the reaction kettle device, and is beneficial to the full reaction of the ozone and the organic matters in the zinc sulfate solution.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the apparatus for cracking organic substances in zinc sulfate solution according to the present invention;
1-water inlet tank, 2-water inlet pump, 3-multistage reaction kettle device, 31-first-stage reaction kettle device, 32-second-stage reaction kettle device, 33-third-stage reaction kettle device, 311-ultrasonic generator, 312-stirring device, 4-ozone generator, 5-first gas pipeline, 6-gas flow valve, 7-liquid flow control valve, 8-tail gas back pressure valve, 9-tail gas treatment device, 10-second gas pipeline and 70-liquid storage tank.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The invention relates to a device for cracking organic matters in a zinc sulfate solution, which comprises a water inlet tank 1, a water inlet pump 2, a multistage reaction kettle device 3, an ozone generator 4, a tail gas treatment device 9 and a liquid storage tank 70, wherein the water inlet tank 1 is connected with a zinc sulfate stock solution water inlet of a first-stage reaction kettle device 31 through the water inlet pump 2 through a liquid pipeline, the multistage reaction kettle devices 3 are arranged in a ladder way, a liquid outlet and a liquid inlet of adjacent reaction kettle devices are connected through the liquid pipeline, the ozone generator 4 is connected with a gas inlet of each stage of reaction kettle through a first gas pipeline 5, and the tail gas treatment device 9 is connected with a gas outlet of each stage of reaction kettle through a second gas pipeline 10; the multistage reaction kettle device 3 is provided with an ultrasonic generator 311 and a stirring device 312, and a liquid outlet of the reaction of the final stage reaction kettle device is connected with the liquid storage tank 70 through a liquid pipeline.
The air inlet of the ozone is arranged at the lower part or the bottom of the multistage reaction kettle device 3, so that the ozone is better dissolved in the solution for oxidation; a gas flow valve 6 is arranged between the ozone generator 4 and a first gas pipeline 5 of the multistage reaction kettle device 3 and is used for controlling the speed of ozone flowing into the multistage reaction device 3 so as to control the pressure in the multistage reaction kettle device 3; and a tail gas backpressure valve 8 is arranged between the tail gas treatment device 9 and a second gas pipeline 10 of the multistage reaction kettle device to control the speed and flow of tail gas emission and ensure the safety of exhaust.
And the liquid pipeline is provided with a liquid flow control valve 7 for controlling the flow rate of the zinc sulfate solution.
The stirring device 312 is a stirring paddle.
The liquid inlets are respectively provided with a filtering structure which is a filter or an ultrafiltration membrane and is used for filtering solid particulate matters in the zinc sulfate solution.
The multistage reaction kettle comprises a first-stage reaction kettle device 31, a second-stage reaction kettle device 32 and a third-stage reaction kettle device 33.
The invention relates to a method for cracking organic matters in a zinc sulfate solution, which specifically comprises the following steps:
(1) adding the zinc sulfate solution containing the organic matters into the first-stage reaction kettle device 31 from a zinc sulfate solution water inlet, simultaneously introducing ozone into the first-stage reaction kettle device 31, completing preliminary organic matter oxidative cracking under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a first-stage reaction liquid.
(2) And adding the primary reaction liquid into a secondary reaction kettle device 32 through a water inlet, introducing ozone into the secondary reaction kettle device, performing further organic matter oxidative cracking under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a secondary reaction liquid.
(3) And adding the second-stage reaction liquid into a third-stage reaction kettle device 33, introducing ozone into the third-stage reaction kettle device 33, completely oxidizing and cracking residual organic matters under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a target solution.
(4) After the reaction is finished, the target solution is discharged from a zinc sulfate solution outlet, and redundant ozone and tail gas enter a tail gas treatment device 9 for treatment.
In the step 1, the pH value of the zinc sulfate solution is as follows: 2.0-6.0, wherein the concentration of organic matters in the zinc sulfate solution is as follows: 200-900 mg/L.
In the step 3, the concentration range of the used ozone is as follows: 70-100 percent.
The reaction time in step 3 < reaction time in step 2 < reaction time in step 1.
The stirring rate is 100-800 rpm.
In step 1, the power range of the ultrasonic wave is as follows: 1-1.5 kW.
In the step 2, the power range of the ultrasonic wave is as follows: 0.5-1 kW.
In step 3, the power range of the ultrasonic wave is as follows: 0.1-0.5 kW.
The present invention is further illustrated by the following examples.
Example 1
A method for cracking organic matters in a zinc sulfate solution specifically comprises the following steps: zinc sulfate solution with the organic matter concentration of 200mg/L, PH value of 2.0 is filtered by a filter from a zinc sulfate solution water inlet and then added into a first-stage reaction kettle device 31, ozone with the concentration of 70% is introduced into the first-stage reaction kettle device 31, first-stage organic matter oxidative cracking is completed under the action of ultrasonic waves with the power of 1 kW and stirring with the stirring speed of 100 revolutions per minute, and the reaction time is controlled for 10 minutes. The solution completely reacted in the first-stage reaction kettle device 31 is added into the second-stage reaction kettle device 32 through a water inlet, meanwhile, ozone with the concentration of 70% is introduced into the second-stage reaction kettle device 32, the second-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power of 0.5 kW and stirring with the stirring speed within the range of 100 revolutions per minute, and the reaction time is controlled for 5 minutes. And adding the completely reacted solution in the second-stage reaction kettle device 32 into the third-stage reaction kettle device 33 through a water inlet, introducing 70% ozone into the third-stage reaction kettle device 33, completing the third-stage organic matter oxidative cracking under the action of ultrasonic waves with the power range of 0.1 kW and stirring with the stirring speed range of 100 revolutions per minute, and controlling the reaction time for 5 minutes. After the reaction is finished, the zinc sulfate solution with the completely cracked organic matter and the redundant ozone are discharged from a zinc sulfate solution outlet and a tail gas discharge port respectively, the zinc sulfate solution with the completely cracked organic matter enters the liquid storage tank 70, and the ozone directly enters the tail gas treatment device 9.
Example 2
A method for cracking organic matters in a zinc sulfate solution specifically comprises the following steps: zinc sulfate solution with the organic matter concentration of 300mg/L, PH value of 3.0 is filtered by a filter from a zinc sulfate solution water inlet and then added into a first-stage reaction kettle device 31, ozone with the concentration of 70% is introduced into the first-stage reaction kettle device 31, first-stage organic matter oxidative cracking is completed under the action of ultrasonic waves with the power of 1.1 kW and stirring with the stirring speed of 200 revolutions per minute, and the reaction time is controlled for 10 minutes. The solution completely reacted in the first-stage reaction kettle device 31 is added into the second-stage reaction kettle device 32 through a water inlet, meanwhile, ozone with the concentration of 70% is introduced into the second-stage reaction kettle device 32, the second-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 0.6 kW and stirring with the stirring speed range of 200 revolutions per minute, and the reaction time is controlled for 17 minutes. And adding the completely reacted solution in the second-stage reaction kettle device 32 into the third-stage reaction kettle device 33 through a water inlet, introducing 70% ozone into the third-stage reaction kettle device 33, completing the oxidation and cracking of the third-stage organic matters under the action of ultrasonic waves with the power of 0.2 kW and stirring with the stirring speed of 200 rpm, and controlling the reaction time for 12 minutes. After the reaction is finished, the solution and the redundant ozone are discharged from a zinc sulfate solution outlet and a tail gas discharge port respectively, the zinc sulfate solution with completely cracked organic matters enters the liquid storage tank 70, and the ozone directly enters the tail gas treatment device 9.
Example 3
A method for cracking organic matters in a zinc sulfate solution specifically comprises the following steps: zinc sulfate solution with the organic matter concentration of 400mg/L, PH value of 4.0 is filtered by a filter from a zinc sulfate solution water inlet and then added into a first-stage reaction kettle device 31, ozone with the concentration range of 80% is introduced into the first-stage reaction kettle device 31, first-stage organic matter oxidative cracking is completed under the action of ultrasonic waves with the power range of 1.2 kW and stirring with the stirring speed range of 300 revolutions per minute, and the reaction time is controlled for 15 minutes. The solution completely reacted in the first-stage reaction kettle device 31 is added into the second-stage reaction kettle device 32 through a water inlet, ozone with the concentration range of 80% is introduced into the second-stage reaction kettle device 32, the second-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 0.7 kW and stirring with the stirring speed range of 300 revolutions per minute, and the reaction time is controlled for 13 minutes. The solution completely reacted in the second-stage reaction kettle device 32 is added into the third-stage reaction kettle device 33 through a water inlet, ozone with the concentration range of 80% is introduced into the third-stage reaction kettle device 33, the third-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 0.3 kW and stirring with the stirring speed range of 300 revolutions per minute, and the reaction time is controlled for 10 minutes. After the reaction is finished, the solution and the redundant ozone are discharged from a zinc sulfate solution outlet and a tail gas discharge port respectively, the zinc sulfate solution with completely cracked organic matters enters the liquid storage tank 70, and the ozone directly enters the tail gas treatment device 12.
Example 4
A method for cracking organic matters in a zinc sulfate solution specifically comprises the following steps: zinc sulfate solution with the organic matter concentration of 500mg/L, PH value of 5.0 is filtered by a filter from a zinc sulfate solution water inlet and then added into a first-stage reaction kettle device 31, ozone with the concentration of 80% is introduced into the first-stage reaction kettle device 31, first-stage organic matter oxidative cracking is completed under the action of ultrasonic waves with the power range of 1.3 kW and stirring with the stirring speed range of 400 revolutions per minute, and the reaction time is controlled for 20 minutes. The solution completely reacted in the first-stage reaction kettle device 31 is added into the second-stage reaction kettle device 32 through a water inlet, ozone with the concentration of 80% is introduced into the second-stage reaction kettle device 32, the second-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 0.8 kW and stirring with the stirring speed range of 400 rpm, and the reaction time is controlled for 12 minutes. And adding the completely reacted solution in the second-stage reaction kettle device 32 into the third-stage reaction kettle device 33 through a water inlet, simultaneously introducing ozone with the concentration range of 80% into the third-stage reaction kettle device 33, completing the oxidative cracking of the third-stage organic matters under the action of ultrasonic waves with the power range of 0.4 kW and stirring with the stirring speed range of 400 rpm, and controlling the reaction time for 7 minutes. After the reaction is finished, the solution and the redundant ozone are discharged from a zinc sulfate solution outlet and a tail gas discharge port respectively, the zinc sulfate solution with completely cracked organic matters enters the liquid storage tank 70, and the ozone directly enters the tail gas treatment device 9.
Example 5
A method for cracking organic matters in a zinc sulfate solution specifically comprises the following steps: zinc sulfate solution containing 800mg/L organic matter and having a pH value of 5.0 is filtered from a zinc sulfate solution water inlet through a filter and then added into a first-stage reaction kettle device 331, ozone with a concentration range of 90% is introduced into the first-stage reaction kettle device 31, first-stage organic matter oxidative cracking is completed under the action of ultrasonic waves with a power range of 1.4 kW and stirring with a stirring speed range of 700 revolutions per minute, and the reaction time is controlled for 25 minutes. The solution completely reacted in the first-stage reaction kettle device 31 is added into the second-stage reaction kettle device 32 through a water inlet, meanwhile, ozone with the concentration range of 90% is introduced into the second-stage reaction kettle device 32, the second-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 0.9 kW and stirring with the stirring speed range of 700 revolutions per minute, and the reaction time is controlled for 20 minutes. The solution completely reacted in the second-stage reaction kettle device 32 is added into the third-stage reaction kettle device 33 through a water inlet, meanwhile, ozone with the concentration range of 90% is introduced into the third-stage reaction kettle device 33, the third-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 0.5 kW and stirring with the stirring speed range of 700 rpm, and the reaction time is controlled for 10 minutes. After the reaction is finished, the solution and the redundant ozone are discharged from a zinc sulfate solution outlet and a tail gas discharge port respectively, the zinc sulfate solution with completely cracked organic matters enters the liquid storage tank 70, and the ozone directly enters the tail gas treatment device 9.
Example 6
A method for cracking organic matters in a zinc sulfate solution specifically comprises the following steps: zinc sulfate solution containing 900mg/L organic matter and having a pH value of 6.0 is filtered from a zinc sulfate solution water inlet through a filter and then added into a first-stage reaction kettle device 31, ozone with the concentration of 100% is introduced into the first-stage reaction kettle device 31, first-stage organic matter oxidative cracking is completed under the action of ultrasonic waves with the power range of 1.5 kW and stirring with the stirring speed range of 800 revolutions per minute, and the reaction time is controlled for 30 minutes. The solution completely reacted in the first-stage reaction kettle device 31 is added into the second-stage reaction kettle device 32 through a water inlet, meanwhile, ozone with the concentration range of 100% is introduced into the second-stage reaction kettle device 32, the second-stage organic matter is oxidized and cracked under the action of ultrasonic waves with the power range of 1 kW and stirring with the stirring speed range of 800 rpm, and the reaction time is controlled for 15 minutes. And adding the completely reacted solution in the second-stage reaction kettle device 15 into the third-stage reaction kettle device 33 through a water inlet, introducing 100% ozone into the third-stage reaction kettle device 33, completing the third-stage organic matter oxidative cracking under the action of ultrasonic waves with the power range of 0.5 kW and stirring with the stirring speed range of 800 rpm, and controlling the reaction time for 10 minutes. After the reaction is finished, the solution and the redundant ozone are discharged from a zinc sulfate solution outlet and a tail gas discharge port respectively, the zinc sulfate solution with completely cracked organic matters enters the liquid storage tank 70, and the ozone directly enters the tail gas treatment device 9.
In examples 1-6, the total organic cracking removal reaction time was not more than 55 minutes, indicating that the method can effectively remove the organic in the zinc sulfate solution in a short time.
Claims (10)
1. A device for cracking organic matters in a zinc sulfate solution is characterized by comprising a water inlet pool, a water inlet pump, a multi-stage reaction kettle device, an ozone generator, a tail gas treatment device and a liquid storage pool, wherein the water inlet pool is connected with a zinc sulfate stock solution water inlet of a first-stage reaction kettle device through the water inlet pump through a liquid pipeline; an ultrasonic generator and a stirring device are arranged in the multistage reaction kettle device, and a liquid outlet of the reaction of the final stage reaction kettle device is connected with a liquid storage tank through a liquid pipeline.
2. The device for cracking organic matters in zinc sulfate solution according to claim 1, wherein the ozone inlet is arranged at the lower part or bottom of the reaction kettle device, a gas flow valve is arranged between the ozone generator and the first gas pipeline of the multistage reaction kettle device, and a tail gas back pressure valve is arranged between the tail gas treatment device and the second gas pipeline of the multistage reaction kettle device.
3. The apparatus for cracking organic matters in zinc sulfate solution according to claim 1, wherein the liquid pipeline is provided with a liquid flow control valve.
4. The device for cracking the organic matters in the zinc sulfate solution according to the claim 1, wherein the stirring device is a stirring paddle.
5. The device for cracking organic matters in zinc sulfate solution according to claim 1, wherein the liquid inlets are provided with filter structures.
6. The device of claim 1, wherein the multi-stage reaction kettle comprises a first-stage reaction kettle device, a second-stage reaction kettle device and a third-stage reaction kettle device.
7. A method for cracking organic matters in a zinc sulfate solution is characterized in that the device of any one of claims 1 to 6 is used for cracking the organic matters, and the method specifically comprises the following steps:
(1) adding a zinc sulfate solution containing organic matters into a primary reaction kettle device from a zinc sulfate solution water inlet, introducing ozone into the primary reaction kettle device, completing preliminary organic matter oxidative cracking under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a primary reaction liquid;
(2) adding the primary reaction liquid into a secondary reaction kettle device through a water inlet, introducing ozone into the secondary reaction kettle device, performing further organic matter oxidative cracking under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a secondary reaction liquid;
(3) adding the second-stage reaction liquid into a third-stage reaction kettle device, introducing ozone into the third-stage reaction kettle device, completely oxidizing and cracking residual organic matters under the action of ultrasonic waves and stirring, and controlling the reaction time for 5-30 minutes to obtain a target solution;
(4) after the reaction is finished, the target solution is discharged from a zinc sulfate solution water outlet, and redundant ozone and tail gas enter a tail gas treatment device for treatment.
8. The method of claim 7, wherein in step 1, the pH value of the zinc sulfate solution is as follows: 2.0-6.0, wherein the concentration of organic matters in the zinc sulfate solution is as follows: 200-900 mg/L.
9. The method for cracking the organics in the zinc sulfate solution according to the claim 7, wherein the concentration of the ozone used in the step 3 is in the range of: 70-100 percent.
10. The method for cracking organic matters in zinc sulfate solution as claimed in claim 7, wherein the stirring rate is 100-800 rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801731.1A CN111926178B (en) | 2020-08-11 | 2020-08-11 | Device and method for cracking organic matters in zinc sulfate solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010801731.1A CN111926178B (en) | 2020-08-11 | 2020-08-11 | Device and method for cracking organic matters in zinc sulfate solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111926178A true CN111926178A (en) | 2020-11-13 |
| CN111926178B CN111926178B (en) | 2022-07-01 |
Family
ID=73311537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010801731.1A Active CN111926178B (en) | 2020-08-11 | 2020-08-11 | Device and method for cracking organic matters in zinc sulfate solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111926178B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651297A (en) * | 2021-09-01 | 2021-11-16 | 昆明理工大学 | Ultrasonic and ozone synergistic treatment method for quality improvement of high-chroma industrial sulfuric acid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424381A (en) * | 2002-12-18 | 2003-06-18 | 宁波市镇海众利化工有限公司 | Devices for continuously producing chlorinated paraffin |
| CN1429781A (en) * | 2001-12-30 | 2003-07-16 | 中国科学院沈阳应用生态研究所 | Oil extraction waste water treatment method and its special reaction equipment |
| CN201923916U (en) * | 2010-12-15 | 2011-08-10 | 李庚承 | Super oxidation-ultrasound-ultrafiltration combined sewage treatment device |
| CN102424407A (en) * | 2011-09-08 | 2012-04-25 | 韩扶军 | Continuous production device of sodium amide |
| CN104630470A (en) * | 2015-03-01 | 2015-05-20 | 云南驰宏锌锗股份有限公司 | Method and device for removing organic matters in zinc sulphate solution by pressurizing and atomizing |
| CN105420493A (en) * | 2015-12-28 | 2016-03-23 | 云南云铜锌业股份有限公司 | Wet-metallurgy continuous reaction kettle equipment |
| CN107082519A (en) * | 2017-06-22 | 2017-08-22 | 吉林大学 | A kind of preprocessing system and method to the pollutant waste water of water soluble polymer containing difficult degradation |
-
2020
- 2020-08-11 CN CN202010801731.1A patent/CN111926178B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429781A (en) * | 2001-12-30 | 2003-07-16 | 中国科学院沈阳应用生态研究所 | Oil extraction waste water treatment method and its special reaction equipment |
| CN1424381A (en) * | 2002-12-18 | 2003-06-18 | 宁波市镇海众利化工有限公司 | Devices for continuously producing chlorinated paraffin |
| CN201923916U (en) * | 2010-12-15 | 2011-08-10 | 李庚承 | Super oxidation-ultrasound-ultrafiltration combined sewage treatment device |
| CN102424407A (en) * | 2011-09-08 | 2012-04-25 | 韩扶军 | Continuous production device of sodium amide |
| CN104630470A (en) * | 2015-03-01 | 2015-05-20 | 云南驰宏锌锗股份有限公司 | Method and device for removing organic matters in zinc sulphate solution by pressurizing and atomizing |
| CN105420493A (en) * | 2015-12-28 | 2016-03-23 | 云南云铜锌业股份有限公司 | Wet-metallurgy continuous reaction kettle equipment |
| CN107082519A (en) * | 2017-06-22 | 2017-08-22 | 吉林大学 | A kind of preprocessing system and method to the pollutant waste water of water soluble polymer containing difficult degradation |
Non-Patent Citations (1)
| Title |
|---|
| 郑穹等: "《制药工程基础》", 30 September 2007, 武汉：武汉大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651297A (en) * | 2021-09-01 | 2021-11-16 | 昆明理工大学 | Ultrasonic and ozone synergistic treatment method for quality improvement of high-chroma industrial sulfuric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111926178B (en) | 2022-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111926178B (en) | Device and method for cracking organic matters in zinc sulfate solution | |
| CN106495215B (en) | A kind of method that magnesium arsenate is produced containing arsenic waste solution | |
| CN102153219B (en) | Treatment method for waste water after purification of graphite | |
| CN100343187C (en) | Treatment process for industrial wastewater of VB12 production and dedicated wastewater treatment machine therefor | |
| CN213326899U (en) | Fenton treatment device for sewage | |
| CN111675385A (en) | Method and system for ultrafiltration aeration and alkali addition iron removal | |
| CN107902839B (en) | Modular integrated system and process suitable for electroplating mixed wastewater treatment | |
| CN207079099U (en) | A kind of graphite production wastewater treatment device | |
| CN212403790U (en) | System for treating comprehensive wastewater generated by anodic oxidation process | |
| CN202881027U (en) | Device for removing organophosphorus from wastewater produced in rare earth extraction process | |
| CN205473211U (en) | Sewage treatment plant for boats and ships | |
| CN114368857A (en) | Electroplating cyanide-containing wastewater treatment and recycling and heavy metal recovery process and system device | |
| CN213895415U (en) | Zinc-nickel mixed sedimentation tank structure for electroplating | |
| CN115072902A (en) | System and process for efficiently removing iron and manganese metal ions in acid mine wastewater | |
| JP7354710B2 (en) | Method for producing high-purity nickel sulfate aqueous solution | |
| CN208603898U (en) | A kind of graphite waste water treatment system | |
| CN107935299B (en) | Coking wastewater treatment method and device | |
| CN112176346A (en) | Regenerant of phosphorus/sulfur mixed acid for chemical polishing, online regeneration method and system adopted by same | |
| CN104876373B (en) | High concentration wastewater treatment all-in-one | |
| CN204981433U (en) | High concentration waste water treatment all -in -one | |
| CN111747595A (en) | Waste water purification process in incineration slag treatment process | |
| CN214528427U (en) | Metal blackening wastewater treatment device | |
| CN220745633U (en) | Nanofiltration concentrated water COD removal system | |
| CN215102707U (en) | Efficient suspended matter intercepting device based on petrochemical sewage treatment system | |
| CN212581673U (en) | Electroplating industry waste water and heavy metal industrial waste water's processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |