CN215032284U - Pile type elution repair system for contaminated soil - Google Patents
Pile type elution repair system for contaminated soil Download PDFInfo
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- CN215032284U CN215032284U CN202120611567.8U CN202120611567U CN215032284U CN 215032284 U CN215032284 U CN 215032284U CN 202120611567 U CN202120611567 U CN 202120611567U CN 215032284 U CN215032284 U CN 215032284U
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Abstract
The utility model provides a pile-type elution restoration system for polluted soil, which comprises an leachate preparation and supply module, a polluted soil storage and leaching module, a tail gas collection and treatment module, a waste liquid treatment and recycling module and a sludge collection and treatment module, wherein the leachate preparation and supply module comprises a medicament A storage tank, a mass meter, a dry powder pump, a medicament B storage tank, a first liquid pump, a tap water storage tank, a second liquid pump, a stirrer, a dispensing tank and a third liquid pump, jar is supplied with to first medicament supply tank, fourth drawing liquid pump and second medicament, pollutes soil and stores leaching module and include that first blast pipe, storehouse body upper cover, solution shower nozzle, first flexible sealed lock, soil store storehouse, flexible filter layer, permeable stone layer, mount, the flexible sealed lock of second, storehouse body lower cover, second blast pipe, and processing module, waste liquid treatment and retrieval and utilization module, mud sediment are collected processing module and are all stored leaching module intercommunication with polluting soil to tail gas.
Description
Technical Field
The utility model relates to a soil remediation technical field especially relates to a pollute soil heap formula elution repair system.
Background
Currently, contaminated site remediation technologies can be divided into passivation and separation technologies depending on whether the contaminants are separated from the soil. Passivation techniques mainly include curing/stabilization, chemical stabilization and microbial remediation; the separation technology mainly comprises plant extraction, elution separation, electric restoration and the like.
The elution separation and restoration technology adopts physical separation or synergistic elution and other measures, separates polluted soil components or transfers pollutants from soil to liquid phase by adding water or proper synergists, effectively reduces the treatment capacity of the polluted soil, can treat heavy metal, semi-volatile organic pollutants and nonvolatile organic pollutants by treating the wastewater of an elution system to remove the pollutants for reuse or standard discharge, is not suitable for soil with the content of fine particles (sticky/powder particles) of the soil higher than 25 percent, has the advantages of multiple types of applicable pollutants, high restoration efficiency, total amount of removable pollutants and the like, and is widely used in the restoration engineering of the polluted soil at home and abroad. Currently, ectopic elution is the most widely applied remediation technology, but the use function of the soil is damaged and effective components are lost due to stirring disturbance of the polluted soil passing through a drum-type leaching screening machine in the elution process; secondly, a large amount of leacheate needs to be added into the drum-type leaching screening machine to pulp and elute the polluted soil, and harmful waste liquid can be generated; finally, the grading screening of the drum-type leaching screening machine can cause pollutants to be enriched in fine particles (sticky/powdery particles), so that the environmental risk of fine soil is increased, the fine soil can only be treated as dangerous waste, and the repair cost is increased.
In recent years, the heap elution is a novel elution technology and has the characteristics of simple process, large treatment capacity, low cost, wide applicability and the like. However, many relevant researches and equipment related to heap elution are concentrated on experimental researches and indoor equipment, and few equipment related to engineering application is provided, for example, the intellectual property agency of China publishes a device for classifying, piling and leaching polluted soil in a mining area and a using method (application number: 201610419390.5) in 2017, 2, month and 22. However, the device has the following disadvantages: (1) the polluted soil needs to be screened into coarse grains and fine grains, so that the construction cost is increased, and the repair procedure is increased; (2) the device is not provided with a waste gas, waste liquid and waste residue treatment device, so that secondary pollution is easily caused, and the leacheate cannot be recycled due to the absence of a waste liquid treatment and recycling device, so that the repair cost is remarkably increased; (3) the leachate of the device can only be naturally leached under the action of gravity, the leaching period is long, the pollutant removal efficiency is low, and the leachate has great difference in leaching speed of two different areas of coarse grains and fine grains due to the fact that the device has the two areas of the coarse grains and the fine grains, so that the consistency of the contaminated soil remediation efficiency is poor, and the remediation period and the cost are increased. In order to solve the defects of the prior heap-type elution equipment, the development of equipment capable of being applied and repaired in an engineering way has extremely high engineering significance and practical value.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide an economy high efficiency, convenient operation, rational in infrastructure, strong adaptability, but a contaminated soil heap formula elution repair system that engineering scale was used, solved the part problem among the prior art at least.
The utility model discloses a realize like this:
the utility model provides a pile-type elution restoration system for polluted soil, which comprises an leachate preparation and supply module, a polluted soil storage and leaching module, a tail gas collection and treatment module, a waste liquid treatment and recycling module and a sludge collection and treatment module,
the leachate preparation and supply module comprises a medicament A storage tank, a mass meter, a dry powder pump, a medicament B storage tank, a first flowmeter, a first liquid pump, a tap water storage tank, a second flowmeter, a second liquid pump, a stirrer, a dispensing tank, a third flowmeter, a third liquid pump, a first medicament supply tank, a fourth flowmeter, a fourth liquid pump, a fifth flowmeter and a second medicament supply tank,
the drug outlet of the drug A storage tank is connected with the drug inlet of the dry powder pump through a pipeline, a mass meter is arranged on the pipeline between the drug A storage tank and the dry powder pump, the drug outlet of the dry powder pump is connected with the drug inlet of the dispensing tank through a pipeline, the drug outlet of the drug B storage tank is connected with the drug inlet of the first liquid pump through a pipeline, a first flowmeter is arranged on the pipeline between the drug B storage tank and the first liquid pump, the drug outlet of the first liquid pump is connected with the drug inlet of the dispensing tank through a pipeline, the water outlet of the running water storage tank is connected with the drug inlet of the second liquid pump through a pipeline, a second flowmeter is arranged on the pipeline between the running water storage tank and the second liquid pump, the drug outlet of the second liquid pump is connected with the drug inlet of the dispensing tank through a pipeline, the dispensing tank is arranged above the drug B storage tank, a stirrer is arranged at the bottom of the dispensing tank, the liquid inlet of the third liquid pump is connected with the liquid outlet of the dispensing tank through a pipeline, a third flow meter is arranged on a pipeline between the dispensing tank and the third liquid pump, a liquid outlet of the third liquid pump is connected with a liquid inlet of the first medicament supply tank through a pipeline, a liquid outlet of the first medicament supply tank is connected with a liquid inlet of the fourth liquid pump through a pipeline, a fourth flow meter is arranged on a pipeline between the first medicament supply tank and the fourth liquid pump, a liquid outlet of the second medicament supply tank is connected with a liquid inlet of the fourth liquid pump through a pipeline, and a fifth flow meter is arranged on a pipeline between the second medicament supply tank and the fourth liquid pump;
the contaminated soil storage leaching module comprises a first exhaust pipe, a bin body upper cover, a solution spray head, a first flexible sealing lock, a soil storage bin, a flexible filter layer, a permeable stone layer, a fixing frame, a second flexible sealing lock, a bin body lower cover and a second exhaust pipe,
the soil storage bin is arranged below the first medicament supply tank, the soil storage bin is an inverted trapezoidal bin body with openings at two ends, the upper bin body cover is arranged at the upper end of the soil storage bin and is connected with the soil storage bin through a sealing lock, the first exhaust pipe is arranged on the upper surface of the upper bin body cover, the solution spray nozzle is arranged on the lower surface of the upper bin body cover, a liquid inlet of the solution spray nozzle is connected with a liquid outlet of a fourth liquid pump through a pipeline, the liquid outlet of the solution spray nozzle faces the soil storage bin, the lower bin body cover is arranged at the lower end of the soil storage bin and is connected with the soil storage bin through a second flexible sealing lock, a flexible filter layer, a permeable rock layer and a fixing frame are sequentially arranged between the lower bin body cover and the soil storage bin, the fixing frame is arranged above the lower bin body cover and is arranged on the upper surface of the fixing frame, and a permeable rock layer is arranged between the flexible filter layer and the fixing frame, a second vent tube is disposed at the second flexible seal lock surface,
the tail gas collecting and processing module, the waste liquid processing and recycling module and the sludge collecting and processing module are all communicated with the contaminated soil storing and leaching module.
Preferably, the tail gas collecting and processing module comprises a vacuum pump, a first air pump, a second air pump, a tail gas processing device, a first pollutant testing device, a third air pump, a first stop valve and a fourth air pump,
the air inlet of the first air pump is connected with the first exhaust pipe through a pipeline, the air outlet of the first air pump is connected with the air inlet of the tail gas treatment device through a pipeline, the air inlet of the second air pump is connected with the second exhaust pipe through a pipeline, a vacuum pump is arranged on the pipeline between the second air pump and the second exhaust pipe, the air outlet of the second air pump is connected with the air inlet of the tail gas treatment device through a pipeline, the first pollutant testing device is arranged below the tail gas treatment device, the air inlet of the first pollutant testing device is connected with the air outlet of the tail gas treatment device through a pipeline, the air outlet of the first pollutant testing device is connected with the air inlet of the fourth air pump through a pipeline, a first stop valve is arranged on the pipeline between the first pollutant testing device and the fourth air pump, the air outlet of the fourth air pump is connected with the outside atmosphere through a pipeline, and the air inlet of the third air pump is connected with the air outlet of the first pollutant testing device through a pipeline, the gas outlet of the third air pump is connected with the gas inlet of the tail gas treatment device through a pipeline.
Preferably, the waste liquid treatment and recycling module comprises a liquid discharge pipe, a first filter, a fifth liquid pump, a first storage tank for leachate, a second filter, a leachate purification treatment device, a sixth liquid pump, a seventh liquid pump, a second storage tank for leachate, a second pollutant testing device, a second stop valve and an eighth liquid pump,
a liquid discharge pipe is arranged on the lower surface of the lower cover of the bin body, a liquid inlet of a fifth liquid pump is connected with the liquid discharge pipe through a pipeline, a first filter is arranged on the pipeline between the liquid discharge pipe and the fifth liquid pump, a liquid outlet of the fifth liquid pump is connected with a liquid inlet of a first filtrate storage tank through a pipeline, a liquid outlet of the first filtrate storage tank is connected with a liquid inlet of an leachate purification treatment device through a pipeline, a second filter is arranged on the pipeline between the first filtrate storage tank and the leachate purification treatment device, a liquid outlet of the leachate purification treatment device is connected with a liquid inlet of a second filtrate storage tank through a pipeline, a sixth liquid pump is arranged on the pipeline between the leachate purification treatment device and the second filtrate storage tank, a liquid outlet of the second filtrate storage tank is connected with a liquid inlet of a second pollutant testing device through a pipeline, a liquid outlet of the second pollutant testing device is connected with a liquid inlet of an eighth liquid pump through a pipeline, the pipeline between second pollutant testing arrangement and the eighth drawing liquid pump is provided with the second stop valve, and the liquid outlet of eighth drawing liquid pump passes through the pipeline and is connected with the inlet of second medicament supply tank, and the inlet of seventh drawing liquid pump passes through the pipeline and is connected with the liquid outlet of leachate second holding vessel, and the liquid outlet of seventh drawing liquid pump passes through the pipeline and is connected with the inlet of leachate first holding vessel.
Preferably, the sludge collection and treatment module comprises a first sludge pump, a sludge harmless treatment device, a second sludge pump, a third pollutant testing device, a third stop valve and a fourth sludge pump,
the sludge outlet of the first filter is connected with the sludge inlet of the sludge harmless treatment device through a pipeline, a first sludge pump is arranged on the pipeline between the first filter and the sludge harmless treatment device, the sludge outlet of the second filter is connected with the sludge inlet of the sludge harmless treatment device through a pipeline, a second sludge pump is arranged on the pipeline between the second filter and the sludge harmless treatment device, the sludge inlet of the third pollutant testing device is connected with the sludge outlet of the sludge harmless treatment device through a pipeline, the sludge outlet of the third pollutant testing device is connected with the sludge inlet of the fourth sludge pump through a pipeline, a third stop valve is arranged on the pipeline between the third pollutant testing device and the fourth sludge pump, the sludge outlet of the fourth sludge pump is connected with the outside through a pipeline, and the sludge outlet of the third sludge pump is connected with the sludge inlet of the sludge harmless treatment device through a pipeline, and a mud inlet of the third sludge pump is connected with a mud outlet of the third pollutant testing device through a pipeline.
The utility model discloses following beneficial effect has:
the utility model provides a pollute soil heap formula elution repair system, adopt the leachate to prepare and supply with the module and realize liquid, multiple eluent such as solid-state and the accurate ration of running water are prepared, pollute soil and store the leaching module and realize polluting the quick restoration of soil, tail gas collection processing module, mud sediment collection processing module has realized tail gas among the repair process respectively, the innocent treatment of mud sediment, liquid water disposal and retrieval and utilization module have realized the innocent treatment and the secondary recycle of repair process waste liquid, the eluent has effectively been improved, the rate of utilization of running water, the production volume of waste liquid has been reduced, intelligent control module has realized the accuracy of each equipment parameter of repair process, real-time control, ensure repair process's accurate nature. The utility model has the advantages of being simple in structure and convenient in operation, low cost can be used by extensive engineering, realizes high efficiency, economy, the restoration of various contaminated soil.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a contaminated soil heap elution remediation system provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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 belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
As shown in fig. 1, the embodiment of the utility model provides an economic, high-efficient, quick, but a contaminated soil heap elution repair system that engineering scale was used is prepared by leachate and is supplied with module, contaminated soil and stores leaching module, tail gas collection processing module, waste liquid treatment and retrieval and utilization module, mud sediment collection processing module and intelligent control module and constitute.
The leachate preparation and supply module is composed of a medicament A storage tank 1, a mass meter 2, a dry powder pump 3, a medicament B storage tank 4, a first flow meter 5, a first liquid pump 6, a tap water storage tank 7, a second flow meter 8, a second liquid pump 9, a stirrer 10, a dispensing tank 11, a third flow meter 12, a third liquid pump 13, a first medicament supply tank 14, a fourth flow meter 15, a fourth liquid pump 16, a fifth flow meter 17 and a second medicament supply tank 18.
The medicine outlet of the medicine A storage tank 1 is connected with the medicine inlet of the dry powder pump 3 through a pipeline, a mass meter 2 is arranged on the pipeline between the medicine A storage tank 1 and the dry powder pump 3, the medicine outlet of the dry powder pump 3 is connected with the medicine inlet of the medicine dispensing tank 11 through a pipeline, the medicine B storage tank 4 is arranged on the left side of the medicine A storage tank 1, the medicine outlet of the medicine B storage tank 4 is connected with the medicine inlet of the first liquid pump 6 through a pipeline, a first flow meter 5 is arranged on the pipeline between the medicine B storage tank 4 and the first liquid pump 6, the medicine outlet of the first liquid pump 6 is connected with the medicine inlet of the medicine dispensing tank 11 through a pipeline, the running water storage tank 7 is arranged on the left side of the medicine B storage tank 4, the medicine outlet of the running water storage tank 7 is connected with the medicine inlet of the second liquid pump 9 through a pipeline, a second flow meter 8 is arranged on the pipeline between the running water storage tank 7 and the second liquid pump 9, a medicine outlet of the second liquid pump 9 is connected with a medicine inlet of a medicine preparation tank 11 through a pipeline, the medicine preparation tank 11 is arranged above the medicine B storage tank 4, the bottom of the medicine preparation tank 11 is provided with an agitator 10, a liquid inlet of a third liquid pump 13 is connected with a liquid outlet of the medicine preparation tank 11 through a pipeline, a third flow meter 12 is arranged on the pipeline between the medicine preparation tank 11 and the third liquid pump 13, a first medicine supply tank 14 is arranged at the left side of the medicine preparation tank 11, a liquid outlet of the third liquid pump 13 is connected with a liquid inlet of the first medicine supply tank 14 through a pipeline, a liquid outlet of the first medicine supply tank 14 is connected with a liquid inlet of a fourth liquid pump 16 through a pipeline, a fourth flow meter 15 is arranged on the pipeline between the first medicine supply tank 14 and the fourth liquid pump 16, a second medicine supply tank 18 is arranged at the left side of the first medicine supply tank 14, a liquid outlet of the second medicine supply tank 18 is connected with a liquid inlet of the fourth liquid pump 16 through a pipeline, a fifth flow meter 17 is provided in a pipe between the second drug supply tank 18 and the fourth liquid pump 16.
The contaminated soil storage leaching module is composed of a first exhaust pipe 19, a bin body upper cover 20, a solution spray nozzle 21, a first flexible sealing lock 22, a soil storage bin 23, a flexible filtering layer 24, a permeable stone layer 25, a fixing frame 26, a second flexible sealing lock 27, a bin body lower cover 28 and a second exhaust pipe 29.
The soil storage bin 23 is arranged below the first medicament supply tank 14, the soil storage bin 23 is a trapezoidal bin body with two open ends, the upper bin body cover 20 is arranged at the upper end of the soil storage bin 23, the upper bin body cover 20 is connected with the soil storage bin 23 through a sealing lock, the first exhaust pipe 19 is arranged on the upper surface of the upper bin body cover 20, the solution spray heads 21 are uniformly arranged on the lower surface of the upper bin body cover 20, a liquid inlet of the solution spray heads 21 is connected with a liquid outlet of the fourth liquid pump 16 through a pipeline, a liquid outlet of the solution spray heads 21 faces the soil storage bin 23, the lower bin body cover 28 is arranged at the lower end of the soil storage bin 23, the lower bin body cover 28 is connected with the soil storage bin 23 through a second flexible sealing lock 27, a flexible filter layer 24, a permeable stone layer 25 and a fixing frame 26 are sequentially arranged between the lower bin body cover 28 and the soil storage bin 23, the fixing frame 26 is arranged above the lower bin body cover 28, the flexible filter layer 24 is arranged on the upper surface of the fixing frame 26, the transparent stone layer 25 is arranged between the flexible filter layer 24 and the fixing frame 26, and the second exhaust pipe 29 is arranged on the surface of the second flexible sealing lock 27.
The tail gas collecting and processing module is composed of a vacuum pump 30, a first air pump 31, a second air pump 32, a tail gas processing device 33, a first pollutant testing device 34, a third air pump 35, a first stop valve 36 and a fourth air pump 37.
An air inlet of a first air pump 31 is connected with a first exhaust pipe 19 through a pipeline, an air outlet of the first air pump 31 is connected with an air inlet of a tail gas treatment device 33 through a pipeline, an air inlet of a second air pump 32 is connected with a second exhaust pipe 29 through a pipeline, a vacuum pump 30 is arranged on the pipeline between the second air pump 32 and the second exhaust pipe 29, an air outlet of the second air pump 32 is connected with an air inlet of the tail gas treatment device 33 through a pipeline, a first pollutant testing device 34 is arranged below the tail gas treatment device 33, an air inlet of the first pollutant testing device 34 is connected with an air outlet of the tail gas treatment device 33 through a pipeline, an air outlet of the first pollutant testing device 34 is connected with an air inlet of a fourth air pump 37 through a pipeline, a first stop valve 36 is arranged on the pipeline between the first pollutant testing device 34 and the fourth air pump 37, and an air outlet of the fourth air pump 37 is connected with the outside atmosphere through a pipeline, the third air pump 35 is arranged on the left side of the tail gas treatment device 33, an air inlet of the third air pump 35 is connected with an air outlet of the first pollutant testing device 34 through a pipeline, and an air outlet of the third air pump 35 is connected with an air inlet of the tail gas treatment device 33 through a pipeline.
The waste liquid treatment and recycling module is composed of a liquid discharge pipe 38, a first filter 39, a fifth liquid pump 40, a first storage tank 41 for leachate, a second filter 42, a leachate purification treatment device 43, a sixth liquid pump 44, a seventh liquid pump 45, a second storage tank 46 for leachate, a second pollutant testing device 47, a second stop valve 48 and an eighth liquid pump 49.
A liquid discharge pipe 38 is arranged on the lower surface of the bin body lower cover 28, a liquid inlet of a fifth liquid pump 40 is connected with the liquid discharge pipe 38 through a pipeline, a first filter 39 is arranged on the pipeline between the liquid discharge pipe 38 and the fifth liquid pump 40, a liquid outlet of the fifth liquid pump 40 is connected with a liquid inlet of a first filtrate storage tank 41 through a pipeline, a liquid outlet of the first filtrate storage tank 41 is connected with a liquid inlet of a filtrate purification treatment device 43 through a pipeline, a second filter 42 is arranged on the pipeline between the first filtrate storage tank 41 and the filtrate purification treatment device 43, a liquid outlet of the filtrate purification treatment device 43 is connected with a liquid inlet of a second filtrate storage tank 46 through a pipeline, a sixth liquid pump 44 is arranged on the pipeline between the filtrate purification treatment device 43 and the second filtrate storage tank 46, a liquid outlet of the second filtrate storage tank 46 is connected with a liquid inlet of a second pollutant testing device 47 through a pipeline, the liquid outlet of second pollutant testing arrangement 47 passes through the pipeline and is connected with eighth drawing liquid pump 49's inlet, be provided with second stop valve 48 on the pipeline between second pollutant testing arrangement 47 and the eighth drawing liquid pump 49, the liquid outlet of eighth drawing liquid pump 49 passes through the pipeline and is connected with the inlet of second medicament supply tank 18, seventh drawing liquid pump 45 sets up the left side at leachate purification unit 43, the inlet of seventh drawing liquid pump 45 passes through the pipeline and is connected with the liquid outlet of leachate second holding vessel 46, the liquid outlet of seventh drawing liquid pump 45 passes through the pipeline and is connected with the inlet of leachate first holding vessel 41.
The sludge collection and treatment module is composed of a first sludge pump 50, a sludge harmless treatment device 51, a second sludge pump 52, a third sludge pump 53, a third pollutant testing device 54, a third stop valve 55 and a fourth sludge pump 56.
The sludge outlet of the first filter 39 is connected with the sludge inlet of the sludge harmless treatment device 51 through a pipeline, a first sludge pump 50 is arranged on the pipeline between the first filter 39 and the sludge harmless treatment device 51, the sludge outlet of the second filter 42 is connected with the sludge inlet of the sludge harmless treatment device 51 through a pipeline, a second sludge pump 52 is arranged on the pipeline between the second filter 42 and the sludge harmless treatment device 51, a third pollutant testing device 54 is arranged on the left side of the sludge harmless treatment device 51, the sludge inlet of the third pollutant testing device 54 is connected with the sludge outlet of the sludge harmless treatment device 51 through a pipeline, the sludge outlet of the third pollutant testing device 54 is connected with the sludge inlet of the fourth sludge pump 56 through a pipeline, a third stop valve 55 is arranged on the pipeline between the third pollutant testing device 54 and the fourth sludge pump 56, the sludge outlet of the fourth sludge pump 56 is connected with the outside through a pipeline, the third sludge pump 53 is arranged above the third pollutant testing device 54, a sludge outlet of the third sludge pump 53 is connected with a sludge inlet of the sludge harmless treatment device 51 through a pipeline, and a sludge inlet of the third sludge pump 53 is connected with a sludge outlet of the third pollutant testing device 54 through a pipeline.
The intelligent control module is composed of a pipeline collector 57 and a computer control end 58, wherein one end of the pipeline collector 57 is respectively connected with the mass meter 2, the dry powder pump 3, the first flowmeter 5, the first liquid pump 6, the second flowmeter 8, the second liquid pump 9, the stirrer 10, the third flowmeter 12, the third liquid pump 13, the first medicament supply tank 14, the fourth flowmeter 15, the fourth liquid pump 16, the fifth flowmeter 17, the solution spray head 21, the vacuum pump 30, the first air pump 31, the second air pump 32, the tail gas treatment device 33, the first pollutant testing device 34, the third air pump 35, the first stop valve 36, the fourth air pump 37, the first filter 39, the fifth liquid pump 40, the second filter 42, the leachate purification treatment device 43, the sixth liquid pump 44, the seventh liquid pump 45, the leachate second storage tank 46, the second pollutant testing device 47, the second air pump 40, the second filter 42, the leachate purification treatment device 43, the sixth liquid pump 44, the seventh liquid pump 45, the second storage tank 46, the second pollutant testing device 47, the third air pump 15, the third air pump, the fifth air pump, the third air pump, the fifth air pump, the third air pump, the third air pump, the air, The second stop valve 48, the eighth liquid pump 49, the first sludge pump 50, the sludge harmless treatment device 51, the second sludge pump 52, the third sludge pump 53, the third pollutant testing device 54, the third stop valve 55 and the fourth sludge pump 56 are connected. The other end of the pipeline collector 57 is connected with the computer control end 58 through a pipeline.
Referring to the attached drawing 1, the repairing method of the contaminated soil heap-type elution repairing system comprises nine parts, namely a contaminated soil pretreatment process, a contaminated soil filling process, an intelligent control process, an leachate preparation and supply process, a contaminated soil elution repairing process, a tail gas collecting and treating process, a waste liquid treatment and recycling process, a sludge collecting and treating process, a repaired soil acceptance and transfer process and the like, and the concrete flow of each part is as follows:
the pretreatment process of the polluted soil comprises the following steps: and excavating, crushing and sieving the polluted soil to be eluted and repaired, and removing impurities such as stones, plastics and the like in the polluted soil for later use.
And (3) a contaminated soil filling process: firstly opening the first flexible sealing lock 22, removing the bin body upper cover 20, closing the second flexible sealing lock 27 and the bin body lower cover 28, fixing the fixing frame 26 above the bin body lower cover 28, secondly arranging the permeable stone layer 25 and the flexible filtering layer 24 on the fixing frame 26 from bottom to top, filling the broken and screened polluted soil into the soil storage bin 23 again, waiting for the polluted soil to be filled into a preset height, and finally closing the first flexible sealing lock 22 and the bin body upper cover 20.
Preparing and supplying leachate: firstly, a mass meter 2 and a dry powder pump 3 are powered on and started, the dry powder pump 3 pumps a medicament A from a medicament A storage tank 1 to a dispensing tank 11, the mass meter 2 meters the pumping mass of the medicament A at any moment, and when the pumping mass of the medicament A reaches a preset value, the mass meter 2 and the dry powder pump 3 are powered off and closed; secondly, the first flow meter 5 and the first liquid pump 6 are powered on and started, the first liquid pump 6 pumps the medicine B from the medicine B storage tank 4 to the medicine dispensing tank 11, the first flow meter 5 meters the extraction volume of the medicine B at the moment, and when the extraction volume of the medicine B reaches a preset value, the first flow meter 5 and the first liquid pump 6 are powered off and closed; thirdly, the second flow meter 8 and the second liquid pump 9 are powered on, tap water is pumped into the dispensing tank 11 from the tap water storage tank 7 by the second liquid pump 9, the second flow meter 8 meters the pumping volume of the tap water at any time, and when the pumping volume of the tap water reaches a preset value, the second flow meter 8 and the second liquid pump 9 are powered off and closed; the stirrer 10 is powered on, and the medicine A, the medicine B and tap water in the dispensing tank 11 are stirred by the stirrer 10 into homogeneous leachate for later use.
Eluting and repairing the polluted soil: the third flow meter 12 and the third liquid pump 13 are powered on, the third liquid pump 13 pumps the leachate from the dispensing tank 11 into the first medicament supply tank 14, the third flow meter 12 meters the extraction volume of the leachate at any time, and when the extraction volume of the leachate reaches a preset value, the third flow meter 12 and the third liquid pump 13 are powered off and closed.
The fourth flow meter 15, the fourth liquid pump 16, and the fifth flow meter 17 are electrically powered on, the fourth liquid pump 16 pumps the leaching solution from the first drug supply tank 14 and the second drug supply tank 18, respectively, and the fourth flow meter 15 and the fifth flow meter 17 measure the volume of the leaching solution in the first drug supply tank 14 and the second drug supply tank 18 at the time of the extraction;
the leachate is uniformly sprayed on the surface of the polluted soil in the soil storage bin 23 through the solution spray head 21, and when the spraying volume of the leachate reaches a preset value, the fourth flowmeter 15, the fourth liquid pump 16 and the fifth flowmeter 17 are powered off and closed.
And (3) tail gas collection and treatment process: the vacuum pump 30, the second air pump 32 and the first pollutant testing device 34 are powered on and started, the second air pump 32 continuously pumps out tail gas between the fixing frame 26 and the lower cover 28 of the bin body through the second exhaust pipe 29, the vacuum pump 30 meters air pressure between the fixing frame 26 and the lower cover 28 of the bin body at any time, the tail gas processing device 33 carries out harmless treatment on the pumped tail gas to remove harmful components in the tail gas, the first pollutant testing device 34 monitors the components of the tail gas processed by the tail gas processing device 33 at any time, if the processed tail gas reaches the emission standard, the first stop valve 36 and the fourth air pump 37 are powered on and the fourth air pump 37 pumps the tail gas which reaches the standard to the atmosphere; if the treated tail gas does not reach the emission standard, the first stop valve 36 and the fourth air pump 37 are powered off and closed, the third air pump 35 is powered on and started, and the third air pump 35 pumps the tail gas which does not reach the standard to the tail gas treatment device 33 for secondary treatment until the tail gas reaches the standard. The first air pump 31 is powered on and started after the second air pump 32 is powered off, and the first air pump 31 pumps the tail gas between the bin body upper cover 20 and the surface of the polluted soil into the tail gas treatment device 33 through the first exhaust pipe 19 to repeat the tail gas treatment process.
The waste liquid treatment and recycling process comprises the following steps: the leachate and the pollutants in the polluted soil move downwards continuously under the action of air pressure and then are collected into the groove of the bin body lower cover 28, the first filter 39 and the fifth liquid pump 40 are powered on, the fifth liquid pump 40 pumps the leachate to the leachate first storage tank 41 through the liquid discharge pipe 38 and the first filter 39, the first filter 39 performs primary filtration treatment on solid impurities of the leachate,
the second filter 42, the leachate purification treatment device 43 and the sixth liquid pump 44 are powered on, the sixth liquid pump 44 pumps leachate in the leachate first storage tank 41 into the leachate purification treatment device 43 through the second filter 42, the second filter 42 performs secondary filtration treatment on solid impurities of the leachate, the leachate purification treatment device 43 performs innocent treatment on the leachate filtered by the second filter 42 to remove harmful and ineffective components in the leachate, the sixth liquid pump 44 pumps the treated leachate into the leachate second storage tank 46, the second pollutant testing device 47 is powered on, the second pollutant testing device 47 monitors the components of the leachate treated by the leachate purification treatment device 43 at any time, and if the treated leachate reaches the recycling standard, the second stop valve 48 and the eighth liquid pump 49 are powered on, the eighth liquid pump 49 pumps the leachate which reaches the standard in the treatment from the second leachate storage tank 46 to the second chemical supply tank 18; if the treated leaching waste liquid does not reach the recycling standard, the second stop valve 48 and the eighth liquid pump 49 are powered off and closed, the seventh liquid pump 45 is powered on and started, and the seventh liquid pump 45 pumps the leaching waste liquid which does not reach the standard in the second leaching liquid storage tank 46 to the leaching liquid purification treatment device 43 for secondary treatment until the leaching waste liquid reaches the standard.
And (3) sludge collection and treatment process: the first sludge pump 50, the sludge harmless treatment device 51 and the second sludge pump 52 are powered on and started, the first sludge pump 50 and the second sludge pump 52 respectively pump solid impurities from the first filter 39 and the second filter 42 into the sludge harmless treatment device 51, the sludge harmless treatment device 51 carries out harmless treatment on the pumped solid impurities, the third pollutant testing device 54 is powered on and started, the third pollutant testing device 54 monitors the components of the solid impurities treated by the sludge harmless treatment device 51 at any time,
if the treated solid impurities reach the discharge standard, the third stop valve 55 and the fourth sludge pump 56 are powered on and started, and the fourth sludge pump 56 pumps and discharges the treated solid impurities reaching the standard to the external environment; if the treated solid impurities do not reach the discharge standard, the third stop valve 55 and the fourth sludge pump 56 are powered off and closed, the third sludge pump 53 is powered on and started, and the third sludge pump 53 pumps the solid impurities which do not reach the standard to the sludge harmless treatment device 51 for secondary treatment until the solid impurities reach the standard.
The process of checking and transporting the repaired soil comprises the following steps: firstly, opening the first flexible sealing lock 22, removing the bin body upper cover 20, taking a representative soil sample for detection, if the polluted soil is restored to reach the standard, opening the second flexible sealing lock 27 and removing the bin body lower cover 28, sequentially removing the fixing frame 26, the permeable stone layer 25 and the flexible filtering layer 24, and transferring and utilizing the restored polluted soil reaching the standard. If the polluted soil restoration does not reach the standard, the first flexible sealing lock 22 and the bin body upper cover 20 are closed, and the leaching restoration process is repeated until the polluted soil restoration reaches the standard.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a pollute soil heap elution repair system which characterized in that: comprises an leachate preparation and supply module, a contaminated soil storage leaching module, a tail gas collection and treatment module, a waste liquid treatment and recycling module and a sludge collection and treatment module,
the leachate preparation and supply module comprises a medicament A storage tank, a mass meter, a dry powder pump, a medicament B storage tank, a first flowmeter, a first liquid pump, a tap water storage tank, a second flowmeter, a second liquid pump, a stirrer, a dispensing tank, a third flowmeter, a third liquid pump, a first medicament supply tank, a fourth flowmeter, a fourth liquid pump, a fifth flowmeter and a second medicament supply tank,
the drug outlet of the drug A storage tank is connected with the drug inlet of the dry powder pump through a pipeline, a mass meter is arranged on the pipeline between the drug A storage tank and the dry powder pump, the drug outlet of the dry powder pump is connected with the drug inlet of the dispensing tank through a pipeline, the drug outlet of the drug B storage tank is connected with the drug inlet of the first liquid pump through a pipeline, a first flowmeter is arranged on the pipeline between the drug B storage tank and the first liquid pump, the drug outlet of the first liquid pump is connected with the drug inlet of the dispensing tank through a pipeline, the water outlet of the running water storage tank is connected with the drug inlet of the second liquid pump through a pipeline, a second flowmeter is arranged on the pipeline between the running water storage tank and the second liquid pump, the drug outlet of the second liquid pump is connected with the drug inlet of the dispensing tank through a pipeline, the dispensing tank is arranged above the drug B storage tank, a stirrer is arranged at the bottom of the dispensing tank, the liquid inlet of the third liquid pump is connected with the liquid outlet of the dispensing tank through a pipeline, a third flow meter is arranged on a pipeline between the dispensing tank and the third liquid pump, a liquid outlet of the third liquid pump is connected with a liquid inlet of the first medicament supply tank through a pipeline, a liquid outlet of the first medicament supply tank is connected with a liquid inlet of the fourth liquid pump through a pipeline, a fourth flow meter is arranged on a pipeline between the first medicament supply tank and the fourth liquid pump, a liquid outlet of the second medicament supply tank is connected with a liquid inlet of the fourth liquid pump through a pipeline, and a fifth flow meter is arranged on a pipeline between the second medicament supply tank and the fourth liquid pump;
the contaminated soil storage leaching module comprises a first exhaust pipe, a bin body upper cover, a solution spray head, a first flexible sealing lock, a soil storage bin, a flexible filter layer, a permeable stone layer, a fixing frame, a second flexible sealing lock, a bin body lower cover and a second exhaust pipe,
the soil storage bin is arranged below the first medicament supply tank, the soil storage bin is an inverted trapezoidal bin body with openings at two ends, the upper bin body cover is arranged at the upper end of the soil storage bin and is connected with the soil storage bin through a sealing lock, the first exhaust pipe is arranged on the upper surface of the upper bin body cover, the solution spray nozzle is arranged on the lower surface of the upper bin body cover, a liquid inlet of the solution spray nozzle is connected with a liquid outlet of a fourth liquid pump through a pipeline, the liquid outlet of the solution spray nozzle faces the soil storage bin, the lower bin body cover is arranged at the lower end of the soil storage bin and is connected with the soil storage bin through a second flexible sealing lock, a flexible filter layer, a permeable rock layer and a fixing frame are sequentially arranged between the lower bin body cover and the soil storage bin, the fixing frame is arranged above the lower bin body cover and is arranged on the upper surface of the fixing frame, and a permeable rock layer is arranged between the flexible filter layer and the fixing frame, a second vent tube is disposed at the second flexible seal lock surface,
the tail gas collecting and processing module, the waste liquid processing and recycling module and the sludge collecting and processing module are all communicated with the contaminated soil storing and leaching module.
2. The contaminated soil heap elution remediation system of claim 1, wherein: the tail gas collecting and processing module comprises a vacuum pump, a first air pump, a second air pump, a tail gas processing device, a first pollutant testing device, a third air pump, a first stop valve and a fourth air pump,
the air inlet of the first air pump is connected with the first exhaust pipe through a pipeline, the air outlet of the first air pump is connected with the air inlet of the tail gas treatment device through a pipeline, the air inlet of the second air pump is connected with the second exhaust pipe through a pipeline, a vacuum pump is arranged on the pipeline between the second air pump and the second exhaust pipe, the air outlet of the second air pump is connected with the air inlet of the tail gas treatment device through a pipeline, the first pollutant testing device is arranged below the tail gas treatment device, the air inlet of the first pollutant testing device is connected with the air outlet of the tail gas treatment device through a pipeline, the air outlet of the first pollutant testing device is connected with the air inlet of the fourth air pump through a pipeline, a first stop valve is arranged on the pipeline between the first pollutant testing device and the fourth air pump, the air outlet of the fourth air pump is connected with the outside atmosphere through a pipeline, and the air inlet of the third air pump is connected with the air outlet of the first pollutant testing device through a pipeline, the gas outlet of the third air pump is connected with the gas inlet of the tail gas treatment device through a pipeline.
3. The contaminated soil heap elution remediation system of claim 1, wherein: the waste liquid treatment and recycling module comprises a liquid discharge pipe, a first filter, a fifth liquid pump, a first storage tank for leachate, a second filter, a leachate purification treatment device, a sixth liquid pump, a seventh liquid pump, a second storage tank for leachate, a second pollutant testing device, a second stop valve and an eighth liquid pump,
a liquid discharge pipe is arranged on the lower surface of the lower cover of the bin body, a liquid inlet of a fifth liquid pump is connected with the liquid discharge pipe through a pipeline, a first filter is arranged on the pipeline between the liquid discharge pipe and the fifth liquid pump, a liquid outlet of the fifth liquid pump is connected with a liquid inlet of a first filtrate storage tank through a pipeline, a liquid outlet of the first filtrate storage tank is connected with a liquid inlet of an leachate purification treatment device through a pipeline, a second filter is arranged on the pipeline between the first filtrate storage tank and the leachate purification treatment device, a liquid outlet of the leachate purification treatment device is connected with a liquid inlet of a second filtrate storage tank through a pipeline, a sixth liquid pump is arranged on the pipeline between the leachate purification treatment device and the second filtrate storage tank, a liquid outlet of the second filtrate storage tank is connected with a liquid inlet of a second pollutant testing device through a pipeline, a liquid outlet of the second pollutant testing device is connected with a liquid inlet of an eighth liquid pump through a pipeline, the pipeline between second pollutant testing arrangement and the eighth drawing liquid pump is provided with the second stop valve, and the liquid outlet of eighth drawing liquid pump passes through the pipeline and is connected with the inlet of second medicament supply tank, and the inlet of seventh drawing liquid pump passes through the pipeline and is connected with the liquid outlet of leachate second holding vessel, and the liquid outlet of seventh drawing liquid pump passes through the pipeline and is connected with the inlet of leachate first holding vessel.
4. The contaminated soil heap elution remediation system of claim 3, wherein: the sludge collecting and processing module comprises a first sludge pump, a sludge harmless treatment device, a second sludge pump, a third pollutant testing device, a third stop valve and a fourth sludge pump,
the sludge outlet of the first filter is connected with the sludge inlet of the sludge harmless treatment device through a pipeline, a first sludge pump is arranged on the pipeline between the first filter and the sludge harmless treatment device, the sludge outlet of the second filter is connected with the sludge inlet of the sludge harmless treatment device through a pipeline, a second sludge pump is arranged on the pipeline between the second filter and the sludge harmless treatment device, the sludge inlet of the third pollutant testing device is connected with the sludge outlet of the sludge harmless treatment device through a pipeline, the sludge outlet of the third pollutant testing device is connected with the sludge inlet of the fourth sludge pump through a pipeline, a third stop valve is arranged on the pipeline between the third pollutant testing device and the fourth sludge pump, the sludge outlet of the fourth sludge pump is connected with the outside through a pipeline, and the sludge outlet of the third sludge pump is connected with the sludge inlet of the sludge harmless treatment device through a pipeline, and a mud inlet of the third sludge pump is connected with a mud outlet of the third pollutant testing device through a pipeline.
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| CN202120611567.8U CN215032284U (en) | 2021-03-25 | 2021-03-25 | Pile type elution repair system for contaminated soil |
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| CN113263043A (en) * | 2021-03-25 | 2021-08-17 | 中冶南方都市环保工程技术股份有限公司 | Pile-type elution remediation system for contaminated soil and remediation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113263043A (en) * | 2021-03-25 | 2021-08-17 | 中冶南方都市环保工程技术股份有限公司 | Pile-type elution remediation system for contaminated soil and remediation method thereof |
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