CN108655164A - A kind of elution device containing husky bed mud of heavy metal pollution - Google Patents
A kind of elution device containing husky bed mud of heavy metal pollution Download PDFInfo
- Publication number
- CN108655164A CN108655164A CN201810782069.2A CN201810782069A CN108655164A CN 108655164 A CN108655164 A CN 108655164A CN 201810782069 A CN201810782069 A CN 201810782069A CN 108655164 A CN108655164 A CN 108655164A
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- China
- Prior art keywords
- heavy metal
- bed mud
- mud
- elution
- sedimentation basin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
Abstract
The invention discloses a kind of elution device containing husky bed mud of heavy metal pollution, which includes the feeder being sequentially connected to, elution tank, slurry collecting slot and cyclone；Wherein, it elutes in tank and is provided with spraying mechanism；The underflow opening of cyclone is arranged with mud regulating reservoir, while the overflow port of cyclone is connected to sedimentation basin；The precipitation object area of sedimentation basin is connected to the feed inlet of plate and frame filter press, and the supernatant region of sedimentation basin is connected to water treatment facilities；Mud regulating reservoir is connected to the feed inlet of plate and frame filter press, and the filtered solid outlet of plate and frame filter press is arranged with clean bed mud collecting tank, and filtrate (liquid is arranged with wastewater collection pond, which is connected to water treatment facilities.The present invention can be effectively treated heavy metal pollution containing husky bed mud by way of elution, have a high treating effect, saving of labor, time saving feature when implementation.
Description
Technical field
The present invention relates in field of environment engineering technology soil remediation field more particularly to a kind of heavy metal pollution contain
The elution device of husky bed mud.
Background technology
Heavy metal element can not only be directly entered water environment, atmospheric environment and soil environment cause direct pollution
Harm, while can also carry out Transport And Transformation between water environment, atmospheric environment and soil environment, cause three kinds of environmental factors it
Between indirect contamination hazard.
Bed mud sources of heavy metal includes natural source and two, artificial source aspect, in natural cause, soil parent material and
Influence of the soil-forming process to bed mud content of beary metal is very big；Artificial pollution is the most important source of heavy metal in environment, mainly
Heavy metal pollution caused by industry, agricultural and urban transportation etc..Nowadays people's watershed bed mud heavy metal attention rate is increasingly
The Heavy Metal Pollution in Sediments problem of height, many places gradually highlights, and a large amount of high concentration heavy metal polluted bed mud, which is administered to become, works as
Modern environmental protection focus of attention.
Currently, it is domestic to large amount of polluted bed mud processing methods mainly by the way of curing/stabilizing or landfill,
Extraneous factor is influenced greatly, to can not achieve the innoxious of polluted bed mud, minimizing and recycling.For containing husky bed mud, about leaching
The technology of washing has certain research, but application is not wide.
Invention content
Place in view of the above-mentioned deficiencies in the prior art, the present invention provide a kind of heavy metal pollution containing husky bed mud
Elution device, the elution device can economically and efficiently handle heavy metal pollution and contain husky bed mud, and can be real in processing procedure
Existing bed mud, wastewater zero discharge, the purpose of non-secondary pollution.
The elution device containing husky bed mud of the heavy metal pollution includes the feeder being sequentially connected to, elution tank, mud receipts
Collect slot and cyclone；Wherein, it is provided in the elution tank for spraying a huge sum of money to the polluted bed mud for entering the elution tank
Belong to the spraying mechanism of eluent；
The underflow opening of the cyclone is arranged with a mud regulating reservoir for being added with flocculant, while the cyclone
Overflow port is connected to a sedimentation basin；The precipitation object area of the sedimentation basin is connected to the feed inlet of a plate and frame filter press, and described
The water treatment facilities that the supernatant region of sedimentation basin is handled heavy metal in water using flocculation and depositing technology with one are connected to；
The mud regulating reservoir is connected to the feed inlet of the plate and frame filter press, under the filtered solid outlet of the plate and frame filter press
Be provided with a clean bed mud collecting tank, filtrate (liquid is arranged with a wastewater collection pond, the wastewater collection pond at the water
Manage equipment connection.
Further, the feeder includes feed hopper and belt feeder；Wherein, the feed of the belt feeder
End is arranged below the discharge port of the feed hopper, and the delivery end of the belt feeder and the feed inlet of the elution tank connect
It is logical.
Further, the feeder further includes the vibrating screen for carrying out gradation to polluted bed mud；It is described to shake
Dynamic sieve one end is provided with polluted bed mud import, and the other end is provided with coarse fodder outlet, and bottom end is provided with slurry outlet, and the coarse fodder goes out
Mouth is connected to a coarse fodder collecting tank, and the feed hopper is arranged below the slurry outlet of the vibrating screen.
Further, the heavy metal leaching agent is made of citric acid and EDTA, and the quality of wherein citric acid and EDTA
Than being 5:1~3:Between 1.
Further, the flocculant is made of PAC, PAM, heavy metal chelating agent, and wherein PAC, PAM, heavy metal are caught
The mass ratio for catching agent is 10：2：1.
Further, after being provided between the elution tank and the slurry collecting slot for will be eluted in the elution tank
Polluted bed mud be transported to the first dredge pump of the slurry collecting slot；And it is arranged between the sludge collecting tank and the cyclone
Be useful for the second dredge pump sludge in the sludge collecting tank being transported in the cyclone.
Further, it is provided between the sedimentation basin and the plate and frame filter press for by the dirt of the sedimentation basin bottom
Mud is transported to the third dredge pump of the plate and frame filter press；
And it is provided between the sedimentation basin and the water treatment facilities for conveying the waste water on the sedimentation basin upper layer
To the first water pump of the water treatment facilities.
Further, it is provided between the mud regulating reservoir and the plate and frame filter press for by the mud regulating reservoir
Fourth dredge pump of the interior slurry transportation to the plate and frame filter press.
Further, it is provided between the wastewater collection pond and the water treatment facilities for by the wastewater collection pond
Interior waste water is transported to the second water pump of the water treatment facilities.
The present invention makes the heavy metal contaminants in bed mud be transferred in liquid phase by way of elution, realizes in bed mud
The processing of heavy metal contaminants；Then the leacheate containing heavy metal contaminants is carried out by way of flocculating and precipitating again effective
Processing, to realize bed mud, wastewater zero discharge, the purpose of non-secondary pollution in implementation process.Can economically and efficiently it locate
It manages heavy metal pollution and contains husky bed mud, realize the innoxious of polluted bed mud, minimizing and recycling.
Description of the drawings
Fig. 1 is the structural schematic diagram of the elution device containing husky bed mud of heavy metal pollution provided in an embodiment of the present invention.
Reference sign：
1：Elution tank, 2：Slurry collecting slot, 3：Cyclone, 4：Mud regulating reservoir, 5：Sedimentation basin,
6：Plate and frame filter press, 7：Water treatment facilities, 8：Wastewater collection pond, 9：Clean bed mud collecting tank,
10：Feed hopper, 11：Belt feeder, 12：Vibrating screen, 13：Coarse fodder collecting tank.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 shows that the structure of the elution device containing husky bed mud of the heavy metal pollution in the present embodiment is shown
It is intended to, which includes the feeder being sequentially connected to, elution tank 1, slurry collecting slot 2 and cyclone 3；Wherein, it gives
Expect mechanism be used for elution tank 1 convey polluted bed mud, and be then provided in the elution tank 1 for enter elution tank 1 pollution
Bed mud sprays the spraying mechanism of heavy metal leaching agent；
The underflow opening of above-mentioned cyclone 3 is arranged with a mud regulating reservoir 4 for being added with flocculant, while cyclone 3
Overflow port is connected to sedimentation basin 5；The precipitation object area of the sedimentation basin 5 is connected to the feed inlet of plate and frame filter press 6, and sedimentation basin 5
Supernatant region be connected to water treatment facilities 7；
Above-mentioned mud regulating reservoir 4 is connected to the feed inlet of plate and frame filter press 6, and the filtered solid outlet of the plate and frame filter press 6 is divided into
It is equipped with clean bed mud collecting tank 9, filtrate (liquid is arranged with wastewater collection pond 8, which connects with water treatment facilities 7
It is logical.
Further, above-mentioned feeder includes feed hopper 10 and belt feeder 11；Wherein, belt feeder 11 is given
Material end is arranged below the discharge port of feed hopper 10, and delivery end is connected to elution tank 1.Also, in the present embodiment, batcher
Structure further includes the vibrating screen 12 for carrying out gradation to polluted bed mud；12 one end of vibrating screen be provided with polluted bed mud into
Mouthful, the other end is provided with coarse fodder outlet, and bottom end is provided with slurry outlet, and coarse fodder exit is connected with a coarse fodder collecting tank 13,
Above-mentioned feed hopper 10 is arranged below the slurry outlet of vibrating screen 12.
Certainly, in order to realize the transport of each equipment room sludge and waste water, in the present embodiment, in elution tank 1 and slurry collecting
The first dredge pump for the polluted bed mud after elution in elution tank 1 to be transported to slurry collecting slot 2 is provided between slot 2；And it is dirty
The second mud for being transported to the sludge in sludge collecting tank 2 in cyclone 3 is provided between mud collecting tank 2 and cyclone 3
Pump；
It is provided between above-mentioned sedimentation basin 5 and plate and frame filter press 6 for the sludge of 5 bottom of sedimentation basin to be transported to sheet frame pressure
The third dredge pump of filter 6；And it is provided between sedimentation basin 5 and water treatment facilities 7 for the waste water on 5 upper layer of sedimentation basin to be transported to
First water pump of water treatment facilities 7.It is provided between mud regulating reservoir 4 and plate and frame filter press 6 for will be in mud regulating reservoir 4
Fourth dredge pump of the slurry transportation to plate and frame filter press 6.It is provided between wastewater collection pond 8 and water treatment facilities 7 for by waste water
Waste water in collecting pit 8 is transported to the second water pump of water treatment facilities 7.
When implementation, polluted bed mud is after natural-dehydration moisture content is reduced to 60% or less, through vibrating screen 12 by tree therein
The coarse fodders such as branch, ratchel are sized to coarse fodder collecting tank 13, and the coarse fodder screened out can carry out recycling treatment.Mud after sieving simultaneously
Slurry falls on the material feeding end of belt feeder 11 by feed hopper 11, by the belt feeder 11 by slurry transportation to eluting tank 1
In, elution tank 1 sprays heavy metal leaching agent by the spraying mechanism in it to polluted bed mud, and eluent is through spraying mechanism and pollution
Bed mud mixes, and achievees the effect that elution；
Mud after elution enters cyclone 3 by slurry collecting slot 2, and the sewage generated after the cyclone 3 separation enters
It is precipitated in sedimentation basin 5, the sludge generated after precipitation enters in plate and frame filter press 6, and the waste water of generation enters in water treatment facilities 7；
And pass through the mud that the separation of cyclone 3 generates and then enter in mud regulating reservoir 4, and entering plate and frame filter press 6 after overregulating
In, reach better flocculating effect by adding flocculant in the mud regulating reservoir 4, consequently facilitating preferably separation cleaning bottom
Mud；By the filter pressing of plate and frame filter press 6, the clean bed mud isolated enters in clean bed mud collecting tank 9, improved laggard
Row backfill realizes the effect of remedying sludge, and the waste water isolated then enters water treatment facilities 7 after wastewater collection pond 8.
7 technical process of water treatment facilities is flocculation-precipitation, can reach the better effects handled heavy metal.
In addition, the important parameter of the elution device in the present embodiment need to be carried out according to pollutant property and soil characteristic
It is determined after the lab scale of laboratory, wherein important parameter includes：Eluent type, dosage, liquid-solid ratio (eluent：Bed mud),
Elute time, flocculant, water treatment agent etc..Wherein, heavy metal leaching agent used in the present embodiment be citric acid and EDTA,
The control of its ratio is 5:1-3:Between 1.And the main component of flocculant wherein used includes PAC, PAM, heavy metal chelating agent,
Ratio control is 10：2：1.
The elution device makes the heavy metal contaminants in bed mud be transferred in liquid phase by way of elution, realizes the bottom of to
The processing of heavy metal contaminants in mud；Then the leacheate containing heavy metal contaminants is carried out by way of flocculating and precipitating again
It is effectively treated, to realize bed mud, wastewater zero discharge, the purpose of non-secondary pollution in implementation process.It can be economical, efficient
Ground handles heavy metal pollution and contains husky bed mud, realizes the innoxious of polluted bed mud, minimizing and recycling.
It should be noted that in the embodiment of the present invention, the appearance of " first ", " second ", it is only for make differentiation technology
Noun and description are convenient, should not be construed as the restriction to the embodiment of the present invention.The terms "include", "comprise" or its any other
Variant is intended to non-exclusive inclusion, so that including process, method, article or the terminal device of a series of elements
Include not only those elements, but also include other elements that are not explicitly listed, or further includes for this process, side
Method, article or the intrinsic element of terminal device.In the absence of more restrictions, being limited by sentence "including a ..."
Fixed element, it is not excluded that there is also other identical in process, method, article or the terminal device including the element
Element.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of elution device containing husky bed mud of heavy metal pollution, which is characterized in that including be sequentially connected to feeder, leaching
Cleaning of evaporator (1), slurry collecting slot (2) and cyclone (3)；Wherein, it is provided in the elution tank (1) for entering the leaching
The spraying mechanism of the polluted bed mud spray heavy metal leaching agent of cleaning of evaporator (1)；
The underflow opening of the cyclone (3) is arranged with a mud regulating reservoir (4) for being added with flocculant, while the cyclone
(3) overflow port is connected to a sedimentation basin (5)；The charging of the precipitation object area and a plate and frame filter press (6) of the sedimentation basin (5)
Mouth connection, and the supernatant region of the sedimentation basin (5) is handled heavy metal in water using flocculation and depositing technology with one
Water treatment facilities (7) connection；
The mud regulating reservoir (4) is connected to the feed inlet of the plate and frame filter press (6), the filter cake of the plate and frame filter press (6)
Outlet is arranged with a clean bed mud collecting tank (9), and filtrate (liquid is arranged with a wastewater collection pond (8), the wastewater collection
Pond (8) is connected to the water treatment facilities (7).
2. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the feeder
Including feed hopper (10) and belt feeder (11)；
Wherein, the material feeding end setting of the belt feeder (11) is below the discharge port of the feed hopper (10), the belt
The delivery end of feeder (11) is connected to the feed inlet of the elution tank (1).
3. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the feeder
It further include the vibrating screen (12) for carrying out gradation to polluted bed mud；
Described vibrating screen (12) one end is provided with polluted bed mud import, and the other end is provided with coarse fodder outlet, and bottom end is provided with mud
Outlet, the coarse fodder outlet are connected to a coarse fodder collecting tank (13), and the feed hopper (10) is arranged in the vibrating screen (12)
Below slurry outlet.
4. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the heavy metal leaching
Lotion is made of citric acid and EDTA, and the mass ratio of wherein citric acid and EDTA is 5:1~3:Between 1.
5. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the flocculant by
PAC, PAM, heavy metal chelating agent composition, and the mass ratio of wherein PAC, PAM, heavy metal chelating agent is 10：2：1.
6. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the elution tank
(1) it is provided between the slurry collecting slot (2) for the polluted bed mud after elution in the elution tank (1) to be transported to institute
State the first dredge pump of slurry collecting slot (2)；
And it is provided between the sludge collecting tank (2) and the cyclone (3) for by the dirt in the sludge collecting tank (2)
Mud is transported to the second dredge pump in the cyclone (3).
7. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the sedimentation basin
(5) it is provided between the plate and frame filter press (6) for the sludge of the sedimentation basin (5) bottom to be transported to the sheet frame pressure
The third dredge pump of filter (6)；
And it is provided between the sedimentation basin (5) and the water treatment facilities (7) for by the waste water on the sedimentation basin (5) upper layer
It is transported to the first water pump of the water treatment facilities (7).
8. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the mud is adjusted
It is provided between pond (4) and the plate and frame filter press (6) for by the slurry transportation in the mud regulating reservoir (4) to the plate
4th dredge pump of frame filter press (6).
9. the elution device containing husky bed mud of heavy metal pollution as described in claim 1, which is characterized in that the wastewater collection
It is provided between pond (8) and the water treatment facilities (7) for the waste water in the wastewater collection pond (8) to be transported to the water
Second water pump of processing equipment (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782069.2A CN108655164A (en) | 2018-07-17 | 2018-07-17 | A kind of elution device containing husky bed mud of heavy metal pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782069.2A CN108655164A (en) | 2018-07-17 | 2018-07-17 | A kind of elution device containing husky bed mud of heavy metal pollution |
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| Publication Number | Publication Date |
|---|---|
| CN108655164A true CN108655164A (en) | 2018-10-16 |
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| CN201810782069.2A Pending CN108655164A (en) | 2018-07-17 | 2018-07-17 | A kind of elution device containing husky bed mud of heavy metal pollution |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722005A (en) * | 2013-12-25 | 2014-04-16 | 天津生态城环保有限公司 | Chemical leaching system for treating soil heavy metal and organic pollution |
| CN105598147A (en) * | 2015-12-30 | 2016-05-25 | 北京高能时代环境技术股份有限公司 | Soil washing device and washing method thereof |
| CN106904703A (en) * | 2017-03-23 | 2017-06-30 | 湖北保灵华环保科技有限公司 | A kind of method of heavy-metal contaminated soil leachates treatment |
| CN208680152U (en) * | 2018-07-17 | 2019-04-02 | 北京高能时代环境技术股份有限公司 | A kind of elution device containing husky bed mud of heavy metal pollution |
-
2018
- 2018-07-17 CN CN201810782069.2A patent/CN108655164A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722005A (en) * | 2013-12-25 | 2014-04-16 | 天津生态城环保有限公司 | Chemical leaching system for treating soil heavy metal and organic pollution |
| CN105598147A (en) * | 2015-12-30 | 2016-05-25 | 北京高能时代环境技术股份有限公司 | Soil washing device and washing method thereof |
| CN106904703A (en) * | 2017-03-23 | 2017-06-30 | 湖北保灵华环保科技有限公司 | A kind of method of heavy-metal contaminated soil leachates treatment |
| CN208680152U (en) * | 2018-07-17 | 2019-04-02 | 北京高能时代环境技术股份有限公司 | A kind of elution device containing husky bed mud of heavy metal pollution |
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