CN210505914U - Integrated closed high-concentration acidic hazardous waste liquid treatment equipment - Google Patents
Integrated closed high-concentration acidic hazardous waste liquid treatment equipment Download PDFInfo
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- CN210505914U CN210505914U CN201920716840.6U CN201920716840U CN210505914U CN 210505914 U CN210505914 U CN 210505914U CN 201920716840 U CN201920716840 U CN 201920716840U CN 210505914 U CN210505914 U CN 210505914U
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Abstract
The utility model provides an integrated closed high-concentration acidic hazardous waste liquid treatment device, which belongs to the technical field of hazardous waste liquid treatment devices and comprises a reaction tank, a first-stage reaction tank and a second-stage reaction tank, wherein the reaction tank is provided with a feed inlet, a liquid outlet and an exhaust port, and the first-stage reaction tank is positioned inside the reaction tank and is added with a first micro-electrolysis filler; a second-stage reaction tank which is positioned outside the first-stage reaction tank and is added with a catalyst; the third-stage reaction tank is positioned outside the second-stage reaction tank and is added with second micro-electrolysis filler, and the dosing device is arranged at the upper part of the reaction tank; the danger waste liquid gets into the one-level reaction tank from the feed inlet, relies on gravity to flow to carry the danger waste liquid to the second grade reaction tank and tertiary reaction tank and handles the back and discharge from the leakage fluid dram. The utility model relates to an integrative closed reaction tank relies on gravity to flow and carries the danger waste liquid, and danger waste liquid continuous processing moves, operating personnel not with danger waste liquid direct contact, safe risk-free, the environment is clean and tidy, saves equipment investment, saves area, reduces the medicament and uses the kind, reduces medicament use cost and fortune dimension cost, improves the treatment effeciency.
Description
Technical Field
The utility model belongs to the technical field of danger waste liquid treatment facility, more specifically say, relate to an acid danger waste liquid treatment facility of integration closed high concentration.
Background
At present, the treatment of hazardous waste liquid in China is just started, all the technologies are in the exploration process, and the treatment of the hazardous waste liquid is mainly realized by adding the hazardous waste liquid into a reaction tank in a physicochemical workshop, adding various conventional reagents for acid-base neutralization reaction and Fenton catalytic oxidation reaction; the secondary hazardous waste yield is high because a large amount of medicament is consumed in the reaction process; generally, the method is a multi-unit reaction, the power consumption and the operation cost are high, the occupied area of equipment and devices is large, intermittent treatment is carried out, the temperature rises quickly due to violent reaction, the reaction mass transfer is incomplete, the reaction control is not good, the pollutant removal effect is not good, the ideal effect is not achieved, potential safety hazards can be caused in a reaction tank and a tank riser, the working efficiency is low, and the due economic benefit can not be achieved; because the reaction process is not in a completely closed state, great harm is caused to the body of an operator, and the surrounding environment has great smell of hazardous waste liquid, thereby influencing the environment. These disadvantages currently need to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an acid danger waste liquid treatment facility of integration closed high concentration, it is big to aim at solving present danger waste liquid treatment facility area, and consumption of power and running cost are higher, and the pollutant gets rid of the effect not good, technical problem that work efficiency is low.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an acid danger waste liquid treatment facility of integration closed high concentration, includes:
a reaction tank; the reaction tank is provided with a feed inlet, a liquid outlet and an exhaust port;
the first-stage reaction tank is positioned inside the reaction tank, and a first micro-electrolysis filler for increasing the PH value of the dangerous waste liquid is added inside the first-stage reaction tank;
the second-stage reaction tank is positioned in the reaction tank and sleeved outside the first-stage reaction tank, a first overflow pipe and an overflow weir are arranged between the first-stage reaction tank and the second-stage reaction tank, and a catalyst for reducing the pH value of the hazardous waste liquid treated by the first-stage reaction tank is added in the second-stage reaction tank; the first overflow pipe is used for communicating the bottom of the primary reaction tank with the overflow weir, the overflow weir is positioned at the upper part of the primary reaction tank, and the hazardous waste liquid treated by the primary reaction tank flows into the secondary reaction tank after passing through the overflow weir;
the third-stage reaction tank is positioned in the reaction tank and sleeved outside the second-stage reaction tank, and a second overflow pipe is arranged between the bottom of the second-stage reaction tank and the third-stage reaction tank; a second micro-electrolysis filler for changing the pH value of the hazardous waste liquid treated by the second-stage reaction tank into neutral is added into the third-stage reaction tank; and
the dosing device is arranged at the upper part of the reaction tank and is provided with a first dosing part for adding an oxidant into the overflow weir in the reaction and a second dosing part for adding an alkaline medicament into the tertiary reaction tank in the reaction;
the danger waste liquid is followed the feed inlet gets into the one-level reaction tank relies on gravity to flow and carries danger waste liquid extremely the second grade reaction tank reaches follow behind the tertiary reaction tank treatment the leakage fluid dram discharge.
Further, a distributing device is arranged below the feeding hole, and hazardous waste liquid passes through the feeding hole and uniformly enters the primary reaction tank through the distributing device.
Furthermore, a first lining support plate for supporting the first micro-electrolysis filler is arranged at the lower part of the first-stage reaction tank, a second lining support plate for supporting the catalyst is arranged at the lower part of the second-stage reaction tank, and a third lining support plate for supporting the second micro-electrolysis filler is arranged at the lower part of the third-stage reaction tank.
Further, the integrated closed high-concentration acidic hazardous waste liquid treatment equipment further comprises a blowing device arranged outside the reaction tank, and a first perforated aeration pipe and a second perforated aeration pipe which are communicated with the blowing device, wherein an air outlet of the first perforated aeration pipe is arranged at the bottom of the primary reaction tank; and the air outlet of the second perforated aeration pipe is arranged at the bottom of the secondary reaction tank.
Further, the air outlet of the first perforated aerator pipe faces downwards, and the air outlet direction of the air outlet faces to the bottom of the primary reaction tank; the air outlet of the second perforated aeration pipe faces downwards, and the air outlet direction of the air outlet faces to the bottom of the secondary reaction tank.
Further, a gas purification device is arranged at the air outlet.
The utility model provides an acid danger waste liquid treatment facility of integration closed high concentration's beneficial effect lies in: compared with the prior art, the utility model discloses acid danger liquid waste treatment equipment of integration closed high concentration is closed reaction tank as an organic whole, relies on gravity flow to carry the danger waste liquid, danger waste liquid continuous processing operation, operating personnel not with danger waste liquid direct contact, safe risk-free, the operation is safe simple, the operation environment is clean and tidy, the protection operational environment, save equipment investment, save area, reduce the medicament and use the kind, reduce medicament use cost, reduce the operation maintenance cost, the operation is stable high-efficient, improve the treatment effeciency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an integrated closed high-concentration acidic hazardous waste liquid treatment device provided by the embodiment of the utility model;
in the figure: 1. a first-stage reaction tank; 2. a secondary reaction tank; 3. a third-stage reaction tank; 4. an overflow weir; 5. a distributing device; 6. a first backing plate; 7. a second backing plate; 8. a third backing plate; 9. a reaction tank; 10. a feed inlet; 11. a liquid discharge port; 12. an exhaust port; 13. a gas purification device; 14. a dosing device; 15. a first medicine adding part; 16. a second medicine adding part; 17. a fan; 18. a first perforated aerator pipe; 19. a second perforated aeration pipe; 20. a first overflow pipe; 21. a second overflow tube; 22. a first microelectrolytic filler; 23. a catalyst; 24. a second microelectrolytic filler.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an integrated closed high-concentration acidic hazardous waste liquid treatment apparatus provided by the present invention will now be described. The acidic hazardous liquid waste treatment facility of integration closed high concentration includes:
a reaction tank 9, wherein the reaction tank 9 is provided with a feed inlet 10, a liquid outlet 11 and an exhaust port 12;
the first-stage reaction tank 1 is positioned inside the reaction tank 9, and a first micro-electrolysis filler 22 for increasing the PH value of the dangerous waste liquid is added inside the first-stage reaction tank 1;
the second-stage reaction tank 2 is positioned inside the reaction tank 9 and outside the first-stage reaction tank 1, a first overflow pipe 20 and an overflow weir 4 are arranged between the first-stage reaction tank 1 and the second-stage reaction tank 2, and a catalyst for reducing the pH value of the hazardous waste liquid treated by the first-stage reaction tank 1 is added in the second-stage reaction tank 2; the first overflow pipe 20 is used for communicating the bottom of the primary reaction tank 1 with the overflow weir 4, the overflow weir 4 is arranged at the upper part of the primary reaction tank 1, and the hazardous waste liquid treated by the primary reaction tank 1 flows into the secondary reaction tank after passing through the overflow weir 4;
the third-stage reaction tank 3 is positioned inside the reaction tank 9 and outside the second-stage reaction tank 2, and a second overflow pipe 21 is arranged between the bottom of the second-stage reaction tank 2 and the third-stage reaction tank 3; a second micro-electrolysis filler 24 for changing the pH value of the hazardous waste liquid treated by the second-stage reaction tank 2 into neutral is added in the third-stage reaction tank 3; and
the dosing device 14 is arranged at the upper part of the reaction tank 9, and the dosing device 14 is provided with a first dosing part 15 for adding an oxidant into the overflow weir 4 in the reaction and a second dosing part 16 for adding an alkaline medicament into the tertiary reaction tank 3 in the reaction;
the danger waste liquid gets into the one-level reaction tank from the feed inlet, relies on gravity to flow to carry the danger waste liquid to the second grade reaction tank and tertiary reaction tank and handles the back and discharge from the leakage fluid dram.
The microelectrolysis filler is also called iron carbon filler, and the microelectrolysis reaction is a good process for forming a galvanic cell to treat waste water by utilizing a metal corrosion principle method, also called an internal electrolysis method, an iron scrap filtration method and the like. The micro-electrolysis technology is an ideal process for treating high-concentration organic wastewater at present, and is also called as an internal electrolysis method. Under the condition of no power supply, the micro-electrolysis material filled in the wastewater generates a 1.2V potential difference to carry out electrolysis treatment on the wastewater so as to achieve the purpose of degrading organic pollutants.
The high-concentration acidic hazardous waste liquid enters a first-stage reaction tank 1 from a feed inlet 10, a first micro-electrolysis filler 22 is arranged in the first-stage reaction tank 1, the pH value of the waste liquid is increased to 4 by the first-stage reaction tank 1 through the micro-electrolysis reaction principle and enters a second-stage reaction tank 2, a catalyst 23 is arranged in the second-stage reaction tank 2, meanwhile, an oxidant is added into an overflow weir 4 by a chemical adding device 14 through a first chemical adding part 15, the waste liquid is subjected to catalytic oxidation reaction in the second-stage reaction tank 2, the pH value is reduced to 3 and then enters a third-stage reaction tank 3, a second micro-electrolysis filler 24 is arranged in the third-stage reaction tank 3, the chemical adding device adds an alkaline agent into the third-stage reaction tank 3 through a second chemical adding part 16, the alkaline agent is liquid alkali, the pH value of the waste liquid after being treated by the third-stage reaction tank 3 reaches neutral, the waste liquid is basically treated, carrying out separation treatment, wherein the separated water phase can enter a sewage treatment system for further mixing treatment; in addition, the reaction tank 9 is an integrated closed type, and gas generated in the reaction process of treating the hazardous waste liquid is discharged through an exhaust port 12; the utility model discloses rely on the form that gravity flowed to flow as the direction of flow, rely on gravity to flow completely and carry liquid, save power equipment's investment and use the maintenance cost, reduce running cost.
In this implementation, retort 9 is inside to adopt multistage annular structure, be equipped with first overflow pipe 20 and overflow weir 4 between one-level reaction tank 1 and second grade reaction tank 2, be equipped with second overflow pipe 21 between second grade reaction tank 2 and tertiary reaction tank 3, the multistage reaction tank area of contact of annular structure increases, reach even mass transfer and plate heat exchanger's effect, make the inside temperature stability of reaction tank, thereby reduce the violent exothermic degree of second grade reaction tank 2 catalytic oxidation reaction, the heat transfer reaction of second grade reaction tank 2 simultaneously, play the heating effect to one-level reaction tank 1 and tertiary reaction tank 3, improve the chemical reaction efficiency of one-level reaction tank 1 and tertiary reaction tank 3.
It should be noted here that, retort 9 adopts the formula of burying the installation, spatial layout about setting up, reduce cost, retort 9's overall structure appearance is cylinder barrel-shaped, inside is cylinder sleeve form, rely on gravity flow to carry the waste liquid, discharge from tertiary reaction tank 3 outside leakage fluid dram 11 at last, the inside filler that has different natures and effect of having installed of reaction tank at all levels, retort 9's main part adopts the component of diphase steel material, has heat transfer and acid-base corrosion's of prevention effect, improve the life of reaction tank, in addition, operating personnel need not with danger waste liquid direct contact, operating personnel operation safety is simple, no longer dispose professional operating personnel, at ordinary times only need patrol and examine equipment on the ground can, the plant maintenance is convenient.
The utility model provides an acid danger waste liquid treatment facility of integration closed high concentration's beneficial effect lies in: compared with the prior art, the utility model discloses acid danger waste liquid treatment facility of integration closed high concentration is closed reaction tank as an organic whole, relies on gravity flow to carry the waste liquid, and waste liquid continuous processing moves, operating personnel not with waste liquid direct contact, safe risk-free, the operation is safe simple, and operation environment is clean and tidy, and the protection operational environment saves equipment investment, saves area, reduces the medicament and uses the kind, reduces the medicament use cost, reduces the operation maintenance cost, and the operation is stable high-efficient, improves the treatment effeciency.
As a specific implementation manner of the integrated closed high-concentration acidic hazardous waste liquid treatment equipment provided by the utility model, please refer to fig. 1, a distributor 5 is arranged below a feed inlet 10, and hazardous waste liquid uniformly enters a primary reaction tank 1 from the feed inlet 10 through the distributor 5; the high-concentration acid hazardous waste liquid enters the primary reaction tank 11 from the feed inlet 10 through the distributing device 5, the heat is efficiently transferred, and the reaction efficiency is improved.
As a specific implementation manner of the integrated closed high-concentration acidic hazardous waste liquid treatment equipment provided by the present invention, please refer to fig. 1, a first support plate 6 for supporting a first micro-electrolysis filler 22 is disposed at the lower part of a first-stage reaction tank 1, a second support plate 7 for supporting a catalyst is disposed at the lower part of a second-stage reaction tank 2, and a third support plate 8 for supporting a second micro-electrolysis filler 24 is disposed at the lower part of a third-stage reaction tank 3; the first lining supporting plate 6, the second lining supporting plate 7 and the third lining supporting plate 8 are all net-shaped PE material components, and gas and liquid can pass through the net-shaped PE material components; the first lining support plate 6 divides the first-stage reaction tank 1 into an upper part and a lower part, the first lining support plate 6 is used for lining solid first micro-electrolysis filler 22 so that the solid first micro-electrolysis filler cannot enter the lower half part of the first-stage reaction tank 1 to ensure the smooth proceeding of micro-electrolysis reaction, and the lower half part of the first-stage reaction tank 1 is communicated with the first overflow pipe 20; the second lining support plate 7 divides the secondary reaction tank 2 into an upper part and a lower part, the second lining support plate 7 is used for supporting the solid catalyst 23, so that the solid catalyst cannot enter the lower half part of the secondary reaction tank 2, the catalytic oxidation reaction is ensured to be carried out smoothly, and the lower half part of the secondary reaction tank 2 is communicated with the second overflow pipe 21; the third bearing plate 8 divides the three-stage reaction tank into an upper part and a lower part, and the third bearing plate 8 is used for bearing solid second micro-electrolysis filler 24 so that the solid second micro-electrolysis filler cannot enter the lower half part of the three-stage reaction tank 3, thereby ensuring the smooth proceeding of micro-electrolysis reaction.
In this embodiment, the first bearing plate 6 is circular, and the second bearing plate 7 and the third bearing plate 8 are both circular.
As a specific embodiment of the integrated closed high-concentration acidic hazardous waste liquid treatment equipment provided by the present invention, referring to fig. 1, the integrated closed high-concentration acidic hazardous waste liquid treatment equipment further comprises a blowing device disposed outside the reaction tank 9, and a first perforated aeration pipe 18 and a second perforated aeration pipe 19 communicated with the blowing device, wherein an air outlet of the first perforated aeration pipe 18 is disposed at the bottom of the primary reaction tank 1; an air outlet of the second perforated aeration pipe 19 is arranged at the bottom of the secondary reaction tank 2, the blowing device is a fan 17, the first perforated aeration pipe 18 enters from the upper side of the reaction tank 9, the tail end of the first perforated aeration pipe is arranged below the first lining support plate 6, the second perforated aeration pipe 19 enters from the upper side of the reaction tank 9, and the tail end of the second perforated aeration pipe is arranged below the second lining support plate 7; in this embodiment, valves are disposed between the blower 17 and the first perforated aerator pipe 18 and the second perforated aerator pipe 19; the first perforated aeration pipe 18 and the second perforated aeration pipe 19 are used for providing oxygen to the first-stage reaction tank 11 and the second-stage reaction tank 22 respectively, and play a role in mixing and stirring to accelerate heat transfer and reaction.
In the embodiment, a plurality of circular air outlets are uniformly arranged on the same straight line of the pipe wall of the first perforated aeration pipe 18, the first perforated aeration pipe 18 is L-shaped, is introduced into the bottom of the first-stage reaction tank 1 from the side wall of the first-stage reaction tank, is provided with a corner at the bottom of the first-stage reaction tank, and is provided with a tail end above the bottom of the first lining supporting plate 6; a plurality of circular air outlets are uniformly arranged on the same straight line of the pipe wall of the second perforated aeration pipe 19.
As a specific implementation manner of the integrated closed high-concentration acidic hazardous waste liquid treatment equipment provided by the present invention, please refer to fig. 1, an air outlet of the first perforated aeration pipe 18 is located downward, and an air outlet direction of the air outlet faces to a bottom of the primary reaction tank 1; the air outlet of the second perforated aeration pipe 19 faces downwards, and the air outlet direction of the air outlet faces to the bottom of the secondary reaction tank 2; the direction of the air outlet faces the pool bottom, and the height of the air outlet and the pool bottom is 150 plus 280 mm, air is blown out from the air outlet and then directly blown to the pool wall of the pool bottom, and countless small bubbles are formed through reflection aeration of the pool wall, so that the mixing and stirring effect is increased, the oxygen utilization rate is improved, and the reaction rate is increased.
In this embodiment, the first perforated aeration pipe 18 is also uniformly provided with a plurality of circular air outlets on the same straight line of the pipe wall beside the side wall of the first-stage reaction tank 1, the air outlet direction of the air outlets faces the side wall direction of the first-stage reaction tank 1, and the distance from the air outlets to the side wall of the first-stage reaction tank 1 is 100-250 mm; the second perforated aeration pipe 19 is also evenly provided with a plurality of circular air outlets on the same straight line of the pipe wall beside the side wall of the secondary reaction tank 2, the air outlet direction of the air outlets faces the side wall direction of the secondary reaction tank 2, and the distance from the air outlets to the side wall of the secondary reaction tank 2 is 100 plus 250 mm; when the gas is blown out from the air outlet and directly blown to the side wall, countless small bubbles are formed through the reflection aeration of the side wall, the mixing and stirring effect is further increased, the oxygen utilization rate is improved, and the reaction rate is improved.
As a specific implementation manner of the integrated closed high-concentration acidic hazardous waste liquid treatment equipment provided by the present invention, please refer to fig. 1, a gas purification device 13 is further disposed at the exhaust port 12; waste gas that the hazardous waste liquid treatment in-process produced discharges through gas vent 12, and gas purification device 13 is equipped with in gas vent 12 department, need discharge after gas purification through gas purification device 13 before the waste gas discharge, clean environmental protection.
The utility model discloses a method of high concentration acid danger waste liquid is handled to integration closed high concentration acid danger waste liquid treatment facility includes following step:
a. raising the pH value of the high-concentration acidic hazardous waste liquid to be treated by using a micro-electrolysis reaction principle;
b. reducing the pH value of the hazardous waste liquid treated in the step a through catalytic oxidation reaction,
c. b, changing the pH value of the hazardous waste liquid treated in the step b into neutral through neutralization reaction;
d. and d, discharging the waste liquid treated in the step c, and carrying out solid-liquid separation to finish the waste liquid treatment.
Further, the following steps are included after step d: the liquid after solid-liquid separation enters a sewage treatment system for further mixing treatment; and the separated water phase can enter a sewage treatment system for further mixing treatment.
In the embodiment, the step a is carried out in a first-stage reaction tank 1, the step b is carried out in a second-stage reaction tank 2, the step c is carried out in a third-stage reaction tank 3, high-concentration acidic hazardous waste liquid enters the first-stage reaction tank 1 from a feed inlet 10 through a distributor 5, first micro-electrolysis fillers 22 are added into the first-stage reaction tank 1, the pH value of the hazardous waste liquid is increased to 4 through the micro-electrolysis reaction principle in the first-stage reaction tank 1 after aeration through a perforated aerator pipe, the hazardous waste liquid treated by the first-stage reaction tank 1 overflows to an overflow weir 4 through a first overflow pipe 20 arranged at the bottom of the first-stage reaction tank 1 and overflows to the second-stage reaction tank 2 through the overflow weir 4, meanwhile, a first dosing part 15 of a dosing device 14 is used for adding an oxidant into the overflow weir 4, a high-efficiency catalyst 23 is added into the second-stage reaction tank 2, hydrogen peroxide is uniformly mixed with the hazardous waste liquid and then is subjected to catalytic oxidation reaction, after carrying out catalytic oxidation reaction, the pH value reduces to 3, overflow to tertiary reaction tank 3 through second overflow pipe 21 in second grade reaction tank 2 bottoms, tertiary reaction tank 3 adds the little electrolysis of second and packs 24, add medicine portion 16 to tertiary reaction tank 3 interior liquid alkali through the second of charge device 14 simultaneously, through tertiary reaction tank 3's processing, the pH value of danger waste liquid reaches 7, waste liquid basic processing is complete this moment, the waste liquid has formed the mixture of solid phase and aqueous phase, after tertiary reaction tank 3, discharge through leakage fluid dram 11.
It should be noted here that the oxidant is hydrogen peroxide, and the catalyst is a noble metal catalyst; a noble metal catalyst (precious metal catalyst) is a noble metal material which can change the chemical reaction speed and does not participate in the final reaction product, almost all noble metals can be used as catalysts, but platinum, palladium, rhodium, silver, ruthenium and the like are commonly used, wherein the platinum and the rhodium are most widely used, d electron orbits of the noble metals are not filled, reactants are easily adsorbed on the surface, the strength is moderate, an intermediate active compound is favorably formed, the catalyst has higher catalytic activity, and meanwhile, the catalyst has comprehensive excellent characteristics of high temperature resistance, oxidation resistance, corrosion resistance and the like, and becomes the most important catalyst material; it should be noted here that the reaction condition of the noble metal catalyst is PH 4, and the activity of the noble metal catalyst is the best and the catalytic effect is the best when the PH of the hazardous waste liquid is 4; therefore, the PH value of the hazardous waste liquid needs to be increased to 4 in the first-stage reaction tank 1; hydrogen peroxide is added into the overflow weir 4, after the hydrogen peroxide and the hazardous waste liquid are uniformly mixed, the hydrogen peroxide and the hazardous waste liquid are subjected to catalytic oxidation reaction under the combined action of a noble metal catalyst in the secondary reaction tank 2, and after the reaction, the pH value of the hazardous waste liquid is reduced to 3.
It should be further noted that the alkaline agent is liquid alkali, and the liquid alkali neutralizes the acidic hazardous waste liquid to change the PH of the hazardous waste liquid to 7.
The utility model relates to an integral type structure, area is little, adopts and buries formula installation, waste liquid continuous processing operation, and mass transfer efficiency is high, saves the medicament, and pollutant treatment effect is good, and heat transfer cooling control reaction temperature is stable. The micro-electrolysis filler and the catalyst are adopted for reaction, so that the using types of the medicament are reduced, and the using cost of the medicament is reduced; the power form that adopts gravity to flow reduces the use investment and the maintenance cost of equipment, and the structure of integrative closed makes operating personnel not directly expose the contact with the waste liquid, and the operation is safe, and operating environment is healthy, and the equipment operation only needs daily equipment on ground of patrolling and examining, does not need the device personnel, easy operation, reduction personnel use cost.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. Acidic danger waste liquid treatment facility of integration closed high concentration, its characterized in that includes:
a reaction tank; the reaction tank is provided with a feed inlet, a liquid outlet and an exhaust port;
the first-stage reaction tank is positioned inside the reaction tank, and a first micro-electrolysis filler for increasing the PH value of the dangerous waste liquid is added inside the first-stage reaction tank;
the second-stage reaction tank is positioned in the reaction tank and sleeved outside the first-stage reaction tank, a first overflow pipe and an overflow weir are arranged between the first-stage reaction tank and the second-stage reaction tank, and a catalyst for reducing the pH value of the hazardous waste liquid treated by the first-stage reaction tank is added in the second-stage reaction tank; the first overflow pipe is used for communicating the bottom of the primary reaction tank with the overflow weir, the overflow weir is positioned at the upper part of the primary reaction tank, and the hazardous waste liquid treated by the primary reaction tank flows into the secondary reaction tank after passing through the overflow weir;
the third-stage reaction tank is positioned in the reaction tank and sleeved outside the second-stage reaction tank, and a second overflow pipe is arranged between the bottom of the second-stage reaction tank and the third-stage reaction tank; a second micro-electrolysis filler for changing the pH value of the hazardous waste liquid treated by the second-stage reaction tank into neutral is added into the third-stage reaction tank; and
the dosing device is arranged at the upper part of the reaction tank and is provided with a first dosing part for adding an oxidant into the overflow weir in the reaction and a second dosing part for adding an alkaline medicament into the tertiary reaction tank in the reaction;
the danger waste liquid is followed the feed inlet gets into the one-level reaction tank relies on gravity to flow and carries danger waste liquid extremely the second grade reaction tank reaches follow behind the tertiary reaction tank treatment the leakage fluid dram discharge.
2. The integrated closed high-concentration acidic hazardous waste liquid treatment equipment as claimed in claim 1, wherein a distributor is arranged below the feed inlet, and hazardous waste liquid passes through the distributor from the feed inlet and uniformly enters the primary reaction tank.
3. The integrated closed high-concentration acidic hazardous waste liquid treatment equipment as claimed in claim 2, wherein a first lining and supporting plate for supporting the first microelectrolysis filler is arranged at the lower part of the primary reaction tank, a second lining and supporting plate for supporting a catalyst is arranged at the lower part of the secondary reaction tank, and a third lining and supporting plate for supporting the second microelectrolysis filler is arranged at the lower part of the tertiary reaction tank.
4. The integrated closed high-concentration acidic hazardous waste liquid treatment equipment as claimed in any one of claims 1-3, further comprising an air blowing device arranged outside the reaction tank, and a first perforated aeration pipe and a second perforated aeration pipe communicated with the air blowing device, wherein the air outlet of the first perforated aeration pipe is arranged at the bottom of the primary reaction tank; and the air outlet of the second perforated aeration pipe is arranged at the bottom of the secondary reaction tank.
5. The integrated closed high-concentration acidic hazardous waste liquid treatment equipment as claimed in claim 4, wherein the air outlet of the first perforated aeration pipe faces downwards, and the air outlet of the air outlet faces to the bottom of the primary reaction tank; the air outlet of the second perforated aeration pipe faces downwards, and the air outlet direction of the air outlet faces to the bottom of the secondary reaction tank.
6. The integrated closed high-concentration acidic hazardous waste liquid treatment equipment as claimed in claim 5, wherein a gas purification device is further arranged at the exhaust port.
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| CN201920716840.6U CN210505914U (en) | 2019-05-17 | 2019-05-17 | Integrated closed high-concentration acidic hazardous waste liquid treatment equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054339A (en) * | 2019-05-17 | 2019-07-26 | 廊坊新奥龙河环保科技有限公司 | Integrated sealed formula high-concentration acidic wastewater danger waste liquor treatment equipment and processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054339A (en) * | 2019-05-17 | 2019-07-26 | 廊坊新奥龙河环保科技有限公司 | Integrated sealed formula high-concentration acidic wastewater danger waste liquor treatment equipment and processing method |
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