CN210825511U - Combined treatment device for VOCs contaminated soil and wastewater - Google Patents
Combined treatment device for VOCs contaminated soil and wastewater Download PDFInfo
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- CN210825511U CN210825511U CN201921531967.7U CN201921531967U CN210825511U CN 210825511 U CN210825511 U CN 210825511U CN 201921531967 U CN201921531967 U CN 201921531967U CN 210825511 U CN210825511 U CN 210825511U
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a VOCs pollutes joint processing apparatus of soil and waste water. The main treatment methods for the VOCs-containing polluted soil include chemical oxidation, thermal desorption and the like. The chemical oxidation method oxidant reacts with the pollutants to release a large amount of heat, but the current treatment device cannot effectively utilize the heat energy. The utility model discloses a soil oxidation reaction case, oxidation medicament shower nozzle, waste water treatment case, on-off valve, aeration pipe, first air pump, second air pump and active carbon adsorption device. A plurality of oxidation agent nozzles are arranged at the top of the inner cavity of the soil oxidation reaction box; the bottom of the inner cavity of the wastewater treatment tank is provided with an aeration pipe. The top of the wastewater treatment box is provided with a gas overflow outlet. The utility model discloses a link soil oxidation reaction case and waste water treatment case, utilized the heat energy that produces when handling VOCs and polluting soil to realize the preliminary treatment to VOCs sewage. The cost of VOCs sewage pretreatment is reduced.
Description
Technical Field
The utility model belongs to the technical field of gu useless the processing, concretely relates to VOCs pollutes the joint processing apparatus of soil and waste water.
Background
As a large number of industrial enterprises move out of urban areas, the original industrial land is gradually developed into residential land or public building land, and the land properties change. A large amount of chemical enterprises are transferred and moved out of the central area of a city successively, and a large amount of polluted industrial sites are left, wherein VOCs (volatile organic compounds) pollution problems exist in soil and underground water of a plurality of sites. The main treatment methods for the VOCs-containing polluted soil include chemical oxidation, thermal desorption and the like. The chemical oxidation method oxidant reacts with pollutants to release a large amount of heat, but the prior treatment device cannot effectively utilize the heat energy; and the solubility of the VOCs in the underground water is reduced along with the temperature rise, and if the underground water is heated to a proper temperature, the VOCs can escape, so that the removal rate of the VOCs is improved.
Disclosure of Invention
An object of the utility model is to provide a VOCs pollutes the combined treatment device of soil and waste water.
The utility model discloses a joint processing apparatus of VOCs contaminated soil and waste water, including soil oxidation reaction case, oxidation medicament shower nozzle, waste water treatment case, on-off valve, aeration pipe, first air pump, second air pump and active carbon adsorption device. The soil oxidation reaction box is arranged in the wastewater treatment box, and the bottom of the soil oxidation reaction box and the bottom surface of the inner cavity of the wastewater treatment box are arranged at intervals. A plurality of oxidation agent nozzles are arranged at the top of the inner cavity of the soil oxidation reaction box; the wastewater treatment box is provided with a water inlet and a water outlet. The bottom of the inner cavity of the wastewater treatment tank is provided with an aeration pipe. The top of the wastewater treatment box is provided with a gas overflow outlet. The gas overflow outlet is connected with the input port of the active carbon adsorption device through a first air pump. The output port of the active carbon adsorption device is connected with the air inlet of the aeration pipe through a second air pump.
The utility model discloses a joint processing apparatus of VOCs contaminated soil and waste water, including soil oxidation reaction case, oxidation medicament shower nozzle, waste water treatment case, on-off valve, aeration pipe, first air pump, second air pump, third air pump and active carbon adsorption device. An oxidizing agent spray head is arranged at the top of the inner cavity of the soil oxidation reaction box; the soil oxidation reaction box is provided with a gas inlet and a gas outlet. The two ends of the wastewater treatment box are respectively provided with a water inlet and a water outlet. The bottom of the inner cavity of the wastewater treatment tank is provided with an aeration pipe. The top of the wastewater treatment box is provided with a gas overflow outlet. The gas overflow outlet is connected with the input port of the active carbon adsorption device through a first air pump. The output port of the active carbon adsorption device is connected with the gas inlet on the soil oxidation reaction box through a second air pump. And a gas outlet on the soil oxidation reaction box is connected with a gas inlet of the aeration pipe through a third gas pump.
Preferably, the top of the soil oxidation reaction box is provided with a soil inlet.
Preferably, the medicine inlet of the oxidation medicine spray head is connected with the medicine tank through a medicine adding pump.
Preferably, the water inlet and the water outlet of the wastewater treatment tank are both provided with on-off valves.
The utility model has the advantages that:
the utility model discloses a link soil oxidation reaction case and waste water treatment case, utilized the heat energy that produces when handling VOCs and polluting soil to realize the preliminary treatment to VOCs sewage. The cost of VOCs sewage pretreatment is reduced.
Drawings
Fig. 1 is a schematic view of embodiment 1 of the present invention;
fig. 2 is a schematic view of embodiment 2 of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
as shown in figure 1, the combined treatment device for VOCs contaminated soil and wastewater comprises a soil oxidation reaction box 1, an oxidation agent spray head 3, a wastewater treatment box 5, an on-off valve 7, an aeration pipe 10, a first air pump 11, an activated carbon adsorption device 12 and a gas delivery pipe 13.
Soil oxidation reaction case 1 sets up in waste water treatment case 5, and the bottom of soil oxidation reaction case 1 and the bottom surface interval of waste water treatment case 5 inner chamber set up. The top of the soil oxidation reaction box 1 is provided with a soil inlet 2. A plurality of oxidation agent nozzles 3 are arranged at the top of the inner cavity of the soil oxidation reaction box 1; the medicine inlet of the oxidation medicine nozzle 3 is connected with the medicine tank through a medicine adding pump.
The wastewater treatment tank 5 is provided with a water inlet 6 and a water outlet 9. The water inlet 6 is higher than the water outlet 9. The water inlet 6 and the water outlet 9 of the wastewater treatment tank 5 are provided with on-off valves 7 for controlling water inlet and outlet; an aeration pipe 10 is arranged at the bottom of the inner cavity of the wastewater treatment box 5. The water inlet 6 of the wastewater treatment tank 5 is connected with a water pipe for outputting VOCs sewage 8. The water outlet 9 of the wastewater treatment box 5 is connected with the subsequent water treatment process.
The top of the wastewater treatment tank 5 is provided with a plurality of gas overflow outlets. Each gas overflow outlet is connected with the input port of the activated carbon adsorption device 12 through a gas conveying pipe 13 and a first air pump 11. The output port of the activated carbon adsorption device 12 is connected with the air inlet of the aeration pipe 10 through a second air pump 14. The activated carbon adsorption device 12 is used for absorbing the VOCs waste gas generated by the system, and belongs to the prior art, and the details are not described herein.
The working principle of the utility model is as follows:
and adding VOCs polluted soil 4 into the soil oxidation reaction box 1. Opening an on-off valve at a water inlet 6 of the wastewater treatment tank 5, and adding VOCs sewage 8 into the wastewater treatment tank 5; thereafter, the on-off valve at the water inlet 6 of the wastewater treatment tank 5 is closed. Spraying an oxidizing agent to VOCs polluted soil 4 in the soil oxidation reaction box 1 through an oxidizing agent spray head 3; the oxidizing agent releases heat during the process of oxidatively decomposing the pollutants in the soil 4 contaminated by the VOCs. Because soil oxidation reaction case 1 soaks in VOCs sewage 8, the heat that produces in the soil oxidation reaction case 1 can transmit VOCs sewage 8 for VOCs sewage 8 heaies up. The temperature rise will cause the VOCs in the VOCs wastewater 8 to vaporize and escape.
The first and second air pumps 14 are activated. The first air pump pumps VOCs gas escaping from the VOCs sewage 8 into the activated carbon adsorption device 12. The gas after absorbing the pollutants by the activated carbon adsorption device 12 is pumped into the aeration pipe by the second air pump 14 to aerate the VOCs sewage 8, so that the escape of the VOCs gas in the VOCs sewage 8 is further promoted, and the treatment effect on the VOCs sewage 8 is improved. Therefore, the heat energy generated when the VOCs polluted soil 4 is treated can be utilized to realize the pretreatment of the VOCs sewage 8. After the treatment of the VOCs sewage 8 is completed, the on-off valve at the water outlet 9 of the wastewater treatment tank 5 is opened to discharge the VOCs sewage 8.
Example 2:
as shown in fig. 2, the combined treatment device for the VOCs contaminated soil and wastewater comprises a soil oxidation reaction tank 1, an oxidation agent spray head 3, a wastewater treatment tank 5, an on-off valve 7, an aeration pipe 10, a first air pump 11, a second air pump 14, a third air pump 15 and an activated carbon adsorption device 12.
The top of the soil oxidation reaction box 1 is provided with a soil inlet 2. A plurality of oxidation agent nozzles 3 are arranged at the top of the inner cavity of the soil oxidation reaction box 1; the medicine inlet of the oxidation medicine nozzle 3 is connected with the medicine tank through a medicine adding pump. And a gas inlet and a gas outlet are respectively arranged on two sides of the soil oxidation reaction box 1.
The two ends of the wastewater treatment box 5 are respectively provided with a water inlet 6 and a water outlet 9. The water inlet 6 is higher than the water outlet 9. The water inlet 6 and the water outlet 9 of the wastewater treatment tank 5 are provided with on-off valves 7 for controlling water inlet and outlet; an aeration pipe 10 is arranged at the bottom of the inner cavity of the wastewater treatment box 5. The water inlet 6 of the wastewater treatment tank 5 is connected with a water pipe for outputting VOCs sewage 8. The water outlet 9 of the wastewater treatment box 5 is connected with the subsequent water treatment process.
The top of the wastewater treatment box 5 is provided with a gas overflow outlet. The gas overflow outlet is connected with the input port of the activated carbon adsorption device 12 through a first air pump 11. The output port of the activated carbon adsorption device 12 is connected with the gas inlet on the soil oxidation reaction box 1 through a second air pump 14. The gas outlet on the soil oxidation reaction box 1 is connected with the gas inlet of the aeration pipe 10 through a third air pump 15. The activated carbon adsorption device 12 is used for absorbing the VOCs waste gas generated by the system, and belongs to the prior art, and the details are not described herein.
The working principle of the utility model is as follows:
and adding VOCs polluted soil 4 into the soil oxidation reaction box 1. Opening an on-off valve at a water inlet 6 of the wastewater treatment tank 5, and adding VOCs sewage 8 into the wastewater treatment tank 5; thereafter, the on-off valve at the water inlet 6 of the wastewater treatment tank 5 is closed. Spraying an oxidizing agent to VOCs polluted soil 4 in the soil oxidation reaction box 1 through an oxidizing agent spray head 3; the oxidizing agent releases heat during the process of oxidatively decomposing the pollutants in the soil 4 contaminated by the VOCs. The temperature in the soil oxidation reaction chamber 1 rises.
The first air pump, the second air pump 14, and the third air pump 15 are started. Third air pump 15 is with the gaseous suction aeration pipe of temperature rising in the soil oxidation reaction case 1, aerates VOCs sewage 8, because the bubble temperature that the aeration pipe produced is higher than VOCs sewage 8, so VOCs sewage 8 around the bubble will overflow VOCs gas and melt into the bubble in, reach the purpose that reduces VOCs content in the VOCs sewage 8. The first air pump pumps VOCs gas escaping from the VOCs sewage 8 along with the aeration bubbles into the activated carbon adsorption device 12. The gas after absorbing VOCs pollutants by the activated carbon adsorption device 12 is pumped into the soil oxidation reaction box 1 by the second air pump 14 to be heated; thereby forming a gas circulation to continuously reduce the content of the VOCs in the VOCs sewage 8. This utilizes the heat energy generated when treating the soil 4 contaminated by VOCs to effect pretreatment of the VOCs wastewater 8. After the treatment of the VOCs sewage 8 is completed, the on-off valve at the water outlet 9 of the wastewater treatment tank 5 is opened to discharge the VOCs sewage 8.
Claims (5)
- The combined treatment device for VOCs contaminated soil and wastewater comprises a soil oxidation reaction box, an oxidation agent spray head, a wastewater treatment box, an on-off valve, an aeration pipe, a first air pump, a second air pump and an active carbon adsorption device; the method is characterized in that: the soil oxidation reaction box is arranged in the wastewater treatment box, and the bottom of the soil oxidation reaction box and the bottom surface of the inner cavity of the wastewater treatment box are arranged at intervals; a plurality of oxidation agent nozzles are arranged at the top of the inner cavity of the soil oxidation reaction box; a water inlet and a water outlet are arranged on the wastewater treatment tank; an aeration pipe is arranged at the bottom of the inner cavity of the wastewater treatment tank; the top of the wastewater treatment tank is provided with a gas overflow outlet; the gas overflow outlet is connected with the input port of the active carbon adsorption device through a first air pump; the output port of the active carbon adsorption device is connected with the air inlet of the aeration pipe through a second air pump.
- The combined treatment device for VOCs contaminated soil and wastewater comprises a soil oxidation reaction box, an oxidation agent spray head, a wastewater treatment box, an on-off valve, an aeration pipe, a first air pump, a second air pump, a third air pump and an active carbon adsorption device; the method is characterized in that: an oxidizing agent spray head is arranged at the top of the inner cavity of the soil oxidation reaction box; the soil oxidation reaction box is provided with a gas inlet and a gas outlet; the two ends of the wastewater treatment box are respectively provided with a water inlet and a water outlet; an aeration pipe is arranged at the bottom of the inner cavity of the wastewater treatment tank; the top of the wastewater treatment tank is provided with a gas overflow outlet; the gas overflow outlet is connected with the input port of the activated carbon adsorption device through a first air pump; the output port of the activated carbon adsorption device is connected with the gas inlet on the soil oxidation reaction box through a second gas pump; and a gas outlet on the soil oxidation reaction box is connected with a gas inlet of the aeration pipe through a third gas pump.
- 3. The apparatus of claim 1 or 2 for the combined treatment of wastewater and soil contaminated with VOCs, wherein: and the top of the soil oxidation reaction box is provided with a soil inlet.
- 4. The apparatus of claim 1 or 2 for the combined treatment of wastewater and soil contaminated with VOCs, wherein: and the medicine inlet of the oxidation medicine sprayer is connected with the medicine tank through a medicine adding pump.
- 5. The apparatus of claim 1 or 2 for the combined treatment of wastewater and soil contaminated with VOCs, wherein: and on-off valves are arranged at the water inlet and the water outlet of the wastewater treatment tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531967.7U CN210825511U (en) | 2019-09-16 | 2019-09-16 | Combined treatment device for VOCs contaminated soil and wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921531967.7U CN210825511U (en) | 2019-09-16 | 2019-09-16 | Combined treatment device for VOCs contaminated soil and wastewater |
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| CN210825511U true CN210825511U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921531967.7U Active CN210825511U (en) | 2019-09-16 | 2019-09-16 | Combined treatment device for VOCs contaminated soil and wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115870321A (en) * | 2022-12-29 | 2023-03-31 | 中铁环境科技工程有限公司 | Movable distributed pollution remediation device for mine |
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2019
- 2019-09-16 CN CN201921531967.7U patent/CN210825511U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115870321A (en) * | 2022-12-29 | 2023-03-31 | 中铁环境科技工程有限公司 | Movable distributed pollution remediation device for mine |
| CN115870321B (en) * | 2022-12-29 | 2023-12-05 | 中铁环境科技工程有限公司 | Portable distributed pollution prosthetic devices in mine |
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Address after: 310012 room 1205, building a, No. 18, Wantang Road, Xihu District, Hangzhou, Zhejiang Province Patentee after: ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 310036 room 1502, block a, No. 18, Wantang Road, Xihu District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG TAOHUAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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