CN217297412U - Handle processing apparatus of hazardous waste cyanide-containing waste liquid fast - Google Patents
Handle processing apparatus of hazardous waste cyanide-containing waste liquid fast Download PDFInfo
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- CN217297412U CN217297412U CN202220225986.2U CN202220225986U CN217297412U CN 217297412 U CN217297412 U CN 217297412U CN 202220225986 U CN202220225986 U CN 202220225986U CN 217297412 U CN217297412 U CN 217297412U
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- 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
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Abstract
The utility model relates to a deal with processing apparatus of hazardous waste cyanide-containing waste liquid fast, including oxidation reaction kettle, the last temperature control unit that sets up of oxidation reaction kettle, oxidation reaction kettle's upper portion sets up supplied materials import and medicament import, and oxidation reaction kettle's lower part sets up ejection of compact row mouth, its characterized in that: the incoming material inlet is connected with a cyanide-containing waste liquid storage tank and a waste copper etching liquid waste liquid storage tank, the agent inlet is connected with an acid reagent tank and an alkaline reagent tank, and the discharging outlet is connected with a plate-and-frame filter press. Can quickly and effectively treat the cyanide-containing waste liquid.
Description
Technical Field
The utility model relates to a liquid waste treatment system, concretely relates to handle processing apparatus that hazardous waste contains cyanogen waste liquid fast.
Background
Sodium cyanide is used for metal electroplating, ore flotation and dye, medicine and plastic production, and potassium cyanide is used for electrorefining of platinum, so that the production processes of metal coloring, electroplating, pharmacy and the like all generate cyanide-containing waste water with the mass concentration of 1-500 mg/L. Cyanide is a highly toxic substance, and the waste liquid directly discharged without treatment causes serious harm to the social environment. The existing treatment methods aiming at the cyanogen-containing waste liquid comprise a chemical method, a physical method and a biological method, and the methods have different types of advantages and disadvantages. For example, the acidification method (chemical method) is simple but has great potential safety hazard, the biological purification method and the electrolysis method are in a groping stage and only store some experiences, and the effect of removing cyanide by the ferrous sulfate-lime method is unstable and not complete. Therefore, it is necessary to find a cyanide-containing wastewater treatment device with simpler operation, less investment and better treatment effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a handle the processing apparatus that hazardous waste contains cyanogen waste liquid fast, effectual processing contains cyanogen waste liquid fast.
In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a handle dangerous waste material fast and contain processing apparatus of cyanogen waste liquid, includes oxidation reaction kettle, the last temperature control unit that sets up of oxidation reaction kettle, oxidation reaction kettle's upper portion sets up supplied materials import and medicament import, oxidation reaction kettle's lower part sets up ejection of compact row's mouth, supplied materials access connection contain cyanogen waste liquid storage tank and waste copper etching liquid waste liquid storage tank, medicament access connection acid reagent groove and alkaline reagent groove, ejection of compact row mouthful connect the filter press.
Furthermore, the temperature control unit is a water circulation cavity arranged on the outer wall of the oxidation reaction kettle.
Still further, the temperature of the water circulation cavity is 15 ℃ or 60 ℃.
Still further, the water circulation cavity completely covers the middle lower part of the oxidation reaction kettle, a water inlet of the water circulation cavity is arranged on the side part of the cavity of the water circulation cavity, and a water outlet of the water circulation cavity is arranged at the bottom of the cavity of the water circulation cavity.
Furthermore, a first pump is arranged between the cyanide-containing waste liquid storage tank and the incoming material inlet, a second pump is arranged between the waste copper etching liquid waste liquid storage tank and the incoming material inlet, and a third pump is arranged between the discharge outlet and the plate-and-frame filter press.
Still further, the supplied materials import be provided with two sets ofly, two sets of supplied materials import are connected cyanide-containing waste liquid storage tank and copper scrap etching liquid waste liquid storage tank respectively.
Furthermore, two groups of medicament inlets are arranged, and the two groups of medicament inlets are respectively connected with the acidic reagent groove and the alkaline reagent groove; the alkaline reagent tank is internally provided with sodium hydroxide with the concentration of not more than 42 percent and/or calcium hydroxide with the concentration of not more than 10 percent; the acid reagent tank is internally provided with hydrochloric acid with the concentration of 30% and/or sulfuric acid with the concentration of 50%.
Furthermore, the biochemical device is connected to the upper part of the plate-and-frame filter press, and the lower part of the plate-and-frame filter press is connected with the curing workshop.
The technical effects of the utility model reside in that: the utility model discloses a handle processing apparatus of hazardous waste cyanide-containing waste liquid fast can quick effectual processing cyanide-containing waste liquid.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to the attached drawing, a handle dangerous waste material cyanide-containing waste liquid processing apparatus fast, including oxidation reaction kettle 1, oxidation reaction kettle 1 is last to set up temperature control unit 2, and oxidation reaction kettle 1's upper portion sets up supplied materials import and medicament import, and oxidation reaction kettle 1's lower part sets up the ejection of compact row mouth, supplied materials access connection cyanide-containing waste liquid storage tank 4 and waste copper etching liquid waste liquid storage tank 5, the medicament import connect acid reagent groove 6 and alkaline reagent groove 7, the ejection of compact row mouth connect plate frame pressure filter 8.
Further, the temperature control unit 2 is a water circulation cavity arranged on the outer wall of the oxidation reaction kettle 1.
Still further, the water circulation cavity completely covers the middle lower part of the oxidation reaction kettle 1, a water inlet 2a of the water circulation cavity is arranged at the side part of the water circulation cavity, and a water outlet 2b of the water circulation cavity is arranged at the bottom of the water circulation cavity.
Still further, the temperature of the water circulation cavity is 15 ℃ or 60 ℃.
Furthermore, a first pump 3a is arranged between the cyanide-containing waste liquid storage tank 4 and the incoming material inlet, a second pump 3b is arranged between the waste copper etching liquid waste liquid storage tank 5 and the incoming material inlet, and a third pump 3c is arranged between the discharging outlet and the plate-and-frame filter press 8.
Furthermore, the incoming material inlets are provided with two groups, and the two groups of incoming material inlets are respectively connected with a cyanide-containing waste liquid storage tank 4 and a waste copper etching liquid waste liquid storage tank 5.
Furthermore, two groups of medicament inlets are arranged, and the two groups of medicament inlets are respectively connected with an acidic reagent groove 6 and an alkaline reagent groove 7; sodium hydroxide with the concentration not more than 42% and/or calcium hydroxide with the concentration not more than 10% are arranged in the alkaline reagent tank 7; the acid reagent tank 6 is internally provided with hydrochloric acid with the concentration of 30 percent and/or sulfuric acid with the concentration of 50 percent.
Further, the upper part of the plate-and-frame filter press 8 is connected with a biochemical device 9, and the lower part of the plate-and-frame filter press 8 is connected with a curing workshop 10.
Based on the above scheme, the utility model discloses a handle process of hazardous waste cyanide-containing waste liquid fast, including following step:
1) controlling the temperature of an oxidation reaction kettle 1 to be constant at 15 ℃ by using a water bath of a water circulation cavity (the low-temperature condition is used for preventing the cyanogen content of cyanogen-containing waste liquid from overflowing), pumping the cyanogen-containing waste liquid (with alkalinity) of hazardous waste into the oxidation reaction kettle 1 through a first pump 3a, and slowly adding an alkaline reagent and an acidic reagent (wherein the alkaline reagent is sodium hydroxide with the concentration of not more than 42 percent and calcium hydroxide with the concentration of not more than 10 percent; the acidic reagent is hydrochloric acid with the concentration of 30 percent and sulfuric acid with the concentration of 50 percent) to control the pH of the reaction system in the oxidation reaction kettle 1 to be 6-7.
2) The copper etching solution is added for a plurality of times in a small amount through the second pump 3b, and the copper etching solution contains copper ions and hydrogen peroxide. Under the catalysis of copper ions, cyanide is instantly complexed with copper, the complexed copper cyanide reacts with hydrogen peroxide to produce cyanate, and the copper ions produce copper hydroxide precipitate under an alkaline condition (the condition of the mixed liquid).
3) Adding the copper etching solution continuously until the copper etching solution is excessive (the content of hydrogen peroxide in the copper etching solution (containing copper ions and hydrogen peroxide) is more than 20 times of the theoretical reaction value of the cyanogen-containing waste liquid). The pH value of the reaction system is maintained at about 4, and cyanate, hydrogen peroxide and copper hydroxide precipitates (produced by precipitation at the pH value of 4-6) exist in the reaction system. Along with the continuous reaction, the produced cyanate is further oxidized into carbon dioxide and ammonia gas under the action of a strong oxydol oxidant (self-contained copper etching solution). The reaction system is finally water, copper hydroxide, carbonate and ammonia water.
4) The water bath temperature of the water circulation cavity is heated and controlled at 60 ℃ (the cyanogen-containing waste liquid is reacted, the temperature is increased to increase the reaction speed), calcium hydroxide is added to adjust the pH value to be 8, and the temperature is increased along with the increase of the pH value. And decomposing the carbonate in the oxidation reaction kettle 1 into water and carbon dioxide, overflowing ammonia gas, and finally obtaining water, copper hydroxide, calcium hydroxide and ammonia water as a reaction system of the oxidation reaction kettle 1. The solution after the reaction is pumped to a plate-and-frame filter press 8 of a filter press system through a third pump 3c, and copper hydroxide and calcium hydroxide are filtered out. And finally, ammonia water (the content of ammonia nitrogen is lower than 50mg/L) is contained in the wastewater, and the wastewater directly enters a biochemical device 9 of a biochemical system of a sewage station for treatment.
The filter-pressed sludge is solidified in a solidification workshop 10 and finally landfilled in a landfill pool.
The reaction mechanism of the treatment process is as follows:
2CN - +5H 2 O 2 →2HCO 3 - +N 2 +4H 2 O
2Cu(CN) 3 2- +7H 2 O 2 +2OH - →6CNO - +2Cu(OH) 2 +6H 2 O
CNO - +4H 2 O 2 →CO 2 +NH 3 +H 2 O 。
Claims (8)
1. the utility model provides a handle dangerous waste material fast and contain processing apparatus of cyanogen waste liquid, includes oxidation reaction cauldron (1), sets up temperature control unit (2) on oxidation reaction cauldron (1), and the upper portion of oxidation reaction cauldron (1) sets up supplied materials import and medicament import, and the lower part of oxidation reaction cauldron (1) sets up ejection of compact row mouth, its characterized in that: the incoming material inlet is connected with a cyanide-containing waste liquid storage tank (4) and a waste copper etching liquid waste liquid storage tank (5), the agent inlet is connected with an acidic reagent tank (6) and an alkaline reagent tank (7), and the discharging outlet is connected with a plate-and-frame filter press (8).
2. The device for rapidly disposing of the cyanide-containing waste liquid of hazardous waste according to claim 1, wherein: the temperature control unit (2) is a water circulation cavity arranged on the outer wall of the oxidation reaction kettle (1).
3. The device for rapidly disposing of the cyanide-containing waste liquid of hazardous waste according to claim 2, wherein: the water circulation cavity completely covers the middle lower part of the oxidation reaction kettle (1), a water inlet (2a) of the water circulation cavity is formed in the side part of the cavity of the water circulation cavity, and a water outlet (2b) of the water circulation cavity is formed in the bottom of the cavity of the water circulation cavity.
4. The apparatus for rapidly disposing of cyanide-containing waste liquid of hazardous waste according to claim 3, wherein: the temperature of the water circulation cavity is 15 ℃ or 60 ℃.
5. The device for rapidly disposing of the cyanide-containing waste liquid of hazardous waste according to claim 1, wherein: a first pump (3a) is arranged between the cyanide-containing waste liquid storage tank (4) and the incoming material inlet, a second pump (3b) is arranged between the waste copper etching liquid waste liquid storage tank (5) and the incoming material inlet, and a third pump (3c) is arranged between the discharging outlet and the plate-and-frame filter press (8).
6. The apparatus for rapidly disposing cyanide-containing waste liquid of hazardous waste according to claim 1 or 5, wherein: the incoming material inlets are provided with two groups, and the two groups of incoming material inlets are respectively connected with a cyanide-containing waste liquid storage tank (4) and a waste copper etching liquid waste liquid storage tank (5).
7. The device for rapidly disposing of the cyanide-containing waste liquid of hazardous waste according to claim 1, wherein: the two groups of the medicament inlets are respectively connected with an acidic reagent groove (6) and an alkaline reagent groove (7); the alkaline reagent tank (7) is filled with sodium hydroxide with the concentration not more than 42 percent and/or calcium hydroxide with the concentration not more than 10 percent; the acid reagent tank (6) is internally provided with hydrochloric acid with the concentration of 30 percent and/or sulfuric acid with the concentration of 50 percent.
8. The device for rapidly disposing of the cyanide-containing waste liquid of hazardous waste according to claim 1, wherein: the upper part of the plate-and-frame filter press (8) is connected with a biochemical device (9), and the lower part of the plate-and-frame filter press (8) is connected with a curing workshop (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220225986.2U CN217297412U (en) | 2022-01-24 | 2022-01-24 | Handle processing apparatus of hazardous waste cyanide-containing waste liquid fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220225986.2U CN217297412U (en) | 2022-01-24 | 2022-01-24 | Handle processing apparatus of hazardous waste cyanide-containing waste liquid fast |
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| Publication Number | Publication Date |
|---|---|
| CN217297412U true CN217297412U (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220225986.2U Active CN217297412U (en) | 2022-01-24 | 2022-01-24 | Handle processing apparatus of hazardous waste cyanide-containing waste liquid fast |
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| CN (1) | CN217297412U (en) |
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- 2022-01-24 CN CN202220225986.2U patent/CN217297412U/en active Active
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