CN109365501A - A kind of method and system of soil remediation - Google Patents
A kind of method and system of soil remediation Download PDFInfo
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- CN109365501A CN109365501A CN201811501255.0A CN201811501255A CN109365501A CN 109365501 A CN109365501 A CN 109365501A CN 201811501255 A CN201811501255 A CN 201811501255A CN 109365501 A CN109365501 A CN 109365501A
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- mud
- level
- tank
- settling tank
- water
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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
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of method and system of soil remediation, this method includes that contaminated soil is broken into mud material；The mud material is eluted, mud is formed；The mud is subjected to filters pressing separation, dewatered mud cake becomes qualified soil.Using technical solution of the present invention, the saliferous pollutant in soil can be handled energy-efficiently.
Description
Technical field
The present invention relates to environmental technology field more particularly to a kind of method and systems of soil remediation.
Background technique
Soil is material base required for people's production and living, once it is polluted in various degree, it will to the mankind
Life, life environment generate bad influence.Soil washing is to carry out physics, chemical remediation side to contaminated site soil
Soil washing can be divided into original position according to contaminated site soil treatment position difference by the common method of one of method
Reparation and showering.Relative to elution technique in situ, dystopy elution technique operationally more has controllability, technically more
Mature advantage, but still it is faced with that too low processing capacity, eluent secondary pollution, Meteorological is high, the soil remediation time is slow
The problems such as.
Summary of the invention
To solve problems of the prior art, the embodiment of the present invention provides a kind of method and system of soil remediation,
The saliferous pollutant in soil can be handled energy-efficiently.
One side according to an embodiment of the present invention provides a kind of method of soil remediation, comprising the following steps:
Contaminated soil is broken into mud material；
The mud material is eluted, mud is formed；
The mud is subjected to filters pressing separation, dewatered mud cake becomes qualified soil.
Further, the mud material is solid particle size in 3 millimeters of mud materials below.
The mud material is eluted, mud is formed, further includes steps of
The mud material transmission is precipitated to level-one settling tank, the mud after precipitating sends the stirring of level-one agitator tank to；
Mud after stirring sends two-stage precipitation tank precipitating to, and the mud after precipitating sends the stirring of second level agitator tank to；
Mud after stirring sends three-level settling tank precipitating to, and the mud after precipitating sends the stirring of three-level agitator tank to；
Mud after stirring sends level Four settling tank precipitating to, and the mud after precipitating sends the stirring of level Four agitator tank to；
Mud after stirring sends Pyatyi settling tank precipitating to, forms mud.
It is further comprising the steps of:
The water that filters pressing is separated is mixed into clear water as level Four agitator tank water after water process；
The water that Pyatyi settling tank overflows enters three-level agitator tank；
The water that level Four settling tank overflows enters second level agitator tank；
The water that three-level settling tank overflows enters level-one agitator tank；
The water that two-stage precipitation tank overflows is used as slurrying liquid；
The water that level-one settling tank overflows uses after water process as slurrying liquid.
It is further comprising the steps of:
The qualification soil is added modifying agent and is conserved, and backfills after up to standard.
The other side of the embodiment of the present invention additionally provides a kind of system of soil remediation, including fragmentation pulp grinder, no
Less than two settling tanks, fewer than settling tank quantity one agitator tank and filter press, the fragmentation pulp grinder and first precipitating
Tank connection, settling tank and agitator tank interconnection, the last one settling tank are connect with the filter press,
The fragmentation pulp grinder is used to contaminated soil being broken into mud material, sends settling tank to；
For the settling tank for precipitating the mud material, the mud after precipitating sends next agitator tank to, last
A settling tank sends mud to filter press；
The agitator tank sends next settling tank to for stirring the mud；
The filter press is used to carry out mud filters pressing separation, and dewatered mud cake becomes qualified soil.
Further, including 5 settling tanks and 4 agitator tanks.
Further, further include two water treatment facilities groups, the first water treatment facilities group respectively with first settling tank and
The connection of fragmentation pulp grinder, the second water treatment facilities group are connect with filter press and the last one agitator tank respectively, wherein
The water that second water treatment facilities group is used to separate filter press filters pressing is mixed into clear water conduct after carrying out water process
Level Four agitator tank water；
Pyatyi settling tank is connect with three-level agitator tank, and the water overflowed for Pyatyi settling tank enters three-level agitator tank；
Level Four settling tank is connect with second level agitator tank, and the water overflowed for level Four settling tank enters second level agitator tank；
Three-level settling tank is connect with level-one agitator tank, and the water overflowed for three-level settling tank enters level-one agitator tank；
Two-stage precipitation tank is connect with fragmentation pulp grinder, and the water overflowed for two-stage precipitation tank enters fragmentation pulp grinder,
It is used as slurrying liquid；
The water that first water treatment facilities group is used to overflow level-one settling tank enters fragmentation slurry after carrying out water process
Machine is used as slurrying liquid.
It further, further include dredge pump, the dredge pump is installed between fragmentation pulp grinder and first settling tank, is used
In by mud material transmission give first settling tank.
It further, further include Pulp pump, the Pulp pump is installed on after settling tank, the mud for precipitating settling tank
Slurry sends next equipment to.
The technical solution that the embodiment of the present invention provides utilizes water, and by precipitation, the pollutant in soil is shifted
Carry out water process to liquid phase, then to the leacheate containing pollutant, can energy-efficiently to the saliferous pollutant in soil into
Row processing.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the structural schematic diagram of soil repair system in the embodiment of the present invention.
Fig. 2 is the flow chart of soil remediation in the embodiment of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and related application, method being described in detail in claims, some aspects of the invention are consistent.
The technical scheme is that for the soil of the lower saliferous pollutant of other concentration in addition to manganese containing salt
Elution is repaired.
Fig. 1 is the structural schematic diagram of soil repair system in the embodiment of the present invention.As shown in Figure 1, the soil remediation system
System includes fragmentation pulp grinder, 5 settling tanks, 4 agitator tanks, filter press and 2 water treatment facilities groups.
Fragmentation pulp grinder is connect with first settling tank, settling tank and agitator tank interconnection, the last one settling tank with
Filter press connection.
Fragmentation pulp grinder 101 is used to contaminated soil being broken into mud material, sends first settling tank to.Wherein it is crushed
Dredge pump is installed between slurrying machine and first settling tank, for giving mud material transmission to first settling tank.
Settling tank is for precipitating mud material, and the mud after precipitating sends next agitator tank to, the last one settling tank
Send mud to filter press, agitator tank sends next agitator tank to for stirring the mud.
Specifically, first settling tank 102 is connect with first agitator tank 103, it is equipped with after first settling tank
Pulp pump, the mud after capable of precipitating first settling tank send first agitator tank to, first agitator tank to mud into
Second settling tank is sent to again after row stirring.
Second settling tank 104 is connect with second agitator tank 105, is equipped with Pulp pump after the second settling tank, can
Mud after second settling tank is precipitated sends second agitator tank to, and second agitator tank passes again after being stirred to mud
Give third settling tank.
Third settling tank 106 is connect with third agitator tank 107, and Pulp pump, energy are equipped with after third settling tank
It is enough third settling tank is precipitated after mud send third agitator tank to, third agitator tank mud is stirred after again
Send the 4th settling tank to.
4th settling tank 108 is connect with the 4th agitator tank 109, and Pulp pump, energy are equipped with after the 4th settling tank
It is enough 4th settling tank is precipitated after mud send the 4th agitator tank to, the 4th agitator tank mud is stirred after again
Send the 5th settling tank to.
5th settling tank 110 is connect with filter press 111, is equipped with Pulp pump after the 5th settling tank, can be by the
Mud after five settling tank precipitatings sends filter press to.
Filter press is used to carry out mud filters pressing separation, and dewatered mud cake becomes qualified soil.
In above system, is saved water to realize, two water treatment facilities groups, each water treatment facilities are also mounted
Group includes sedimentation basin, oxidation reaction pond, pH conditioning tank and flocculation basin.
First water treatment facilities group 112 is connect with first settling tank and fragmentation pulp grinder respectively, the second water treatment facilities
Group 113 is connect with filter press and the 4th agitator tank respectively.
The water that second water treatment facilities group is used to separate filter press filters pressing is mixed into clear water conduct after carrying out water process
4th agitator tank (level Four agitator tank) uses water.
5th settling tank (Pyatyi settling tank) connect with third agitator tank (three-level agitator tank), for the 5th precipitating
The water that tank (Pyatyi settling tank) overflows enters third agitator tank (three-level agitator tank).
4th settling tank (level Four settling tank) connect with second agitator tank (second level agitator tank), for the 4th precipitating
The water that tank (level Four settling tank) overflows enters second agitator tank (second level agitator tank).
Third settling tank (three-level settling tank) is connect with first agitator tank (level-one agitator tank), is precipitated for third
The water that tank (three-level settling tank) overflows enters first agitator tank (level-one agitator tank).
Second settling tank (two-stage precipitation tank) connect with fragmentation pulp grinder, is used for second settling tank (two-stage precipitation tank)
The water overflowed enters fragmentation pulp grinder, uses as slurrying liquid.
The water that first water treatment facilities group is used to overflow first settling tank (level-one settling tank) carries out water process
Enter fragmentation pulp grinder afterwards, is used as slurrying liquid.
Above-mentioned water treatment facilities group can washing water be sent into washing unit by treated, to be recycled to it,
Realize water circulation.
The workflow of above system is described below, Fig. 2 is the flow chart of soil remediation in the embodiment of the present invention.Such as figure
Shown in 2, the soil remediation process the following steps are included:
Contaminated soil is sent into fragmentation pulp grinder by step 201, is broken into solid particle size in 3 millimeters of mud materials below.
Step 202 elutes mud material, forms mud.
This step further includes steps of
Mud material is sent to level-one settling tank precipitating by dredge pump, the mud after precipitating sends level-one agitator tank to
Stirring.
Mud after stirring sends two-stage precipitation tank precipitating to, and the mud after precipitating sends the stirring of second level agitator tank to.
Mud after stirring sends three-level settling tank precipitating to, and the mud after precipitating sends the stirring of three-level agitator tank to；
Mud after stirring sends level Four settling tank precipitating to, and the mud after precipitating sends the stirring of level Four agitator tank to；
Mud after stirring sends Pyatyi settling tank precipitating to, obtains the mud for having reached elution effect.
Mud is carried out filters pressing separation by step 203, and dewatered mud cake becomes qualified soil, adds modifying agent, conserves
It can be backfilled after up to standard.
In order to save water while the above process, realization water circulation is further comprising the steps of:
The water that filter press filters pressing is separated is mixed into clear water as level Four agitator tank water after water process.
The water that Pyatyi settling tank overflows enters three-level agitator tank.
The water that level Four settling tank overflows enters second level agitator tank.
The water that three-level settling tank overflows enters level-one agitator tank.
The water that two-stage precipitation tank overflows is used as slurrying liquid.
The water that level-one settling tank overflows uses after water process as slurrying liquid.
Using the technical solution in above-described embodiment, the pollutant in soil is shifted by precipitation using water
Carry out water process to liquid phase, then to the leacheate containing pollutant, can energy-efficiently to the saliferous pollutant in soil into
Row processing.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of method of soil remediation, which comprises the following steps:
Contaminated soil is broken into mud material；
The mud material is eluted, mud is formed；
The mud is subjected to filters pressing separation, dewatered mud cake becomes qualified soil.
2. the method for soil remediation according to claim 1, which is characterized in that the mud material is solid particle size 3
Millimeter mud material below.
3. the method for soil remediation according to claim 1 or 2, which is characterized in that drench the mud material
It washes, forms mud, further include steps of
The mud material transmission is precipitated to level-one settling tank, the mud after precipitating sends the stirring of level-one agitator tank to；
Mud after stirring sends two-stage precipitation tank precipitating to, and the mud after precipitating sends the stirring of second level agitator tank to；
Mud after stirring sends three-level settling tank precipitating to, and the mud after precipitating sends the stirring of three-level agitator tank to；
Mud after stirring sends level Four settling tank precipitating to, and the mud after precipitating sends the stirring of level Four agitator tank to；
Mud after stirring sends Pyatyi settling tank precipitating to, forms mud.
4. the method for soil remediation according to claim 3, which is characterized in that further comprising the steps of:
The water that filters pressing is separated is mixed into clear water as level Four agitator tank water after water process；
The water that Pyatyi settling tank overflows enters three-level agitator tank；
The water that level Four settling tank overflows enters second level agitator tank；
The water that three-level settling tank overflows enters level-one agitator tank；
The water that two-stage precipitation tank overflows is used as slurrying liquid；
The water that level-one settling tank overflows uses after water process as slurrying liquid.
5. the method for soil remediation according to claim 1, which is characterized in that further comprising the steps of:
The qualification soil is added modifying agent and is conserved, and backfills after up to standard.
6. a kind of system of soil remediation, which is characterized in that including fragmentation pulp grinder, no less than two settling tanks, compare settling tank
Quantity few one agitator tank and filter press, the fragmentation pulp grinder are connect with first settling tank, and settling tank and agitator tank are handed over
Fork connection, the last one settling tank are connect with the filter press,
The fragmentation pulp grinder is used to contaminated soil being broken into mud material, sends settling tank to；
For the settling tank for precipitating the mud material, the mud after precipitating sends next agitator tank to, the last one is heavy
Shallow lake tank sends mud to filter press；
The agitator tank sends next settling tank to for stirring the mud；
The filter press is used to carry out mud filters pressing separation, and dewatered mud cake becomes qualified soil.
7. the system of soil remediation according to claim 6, which is characterized in that including 5 settling tanks and 4 agitator tanks.
8. the system of soil remediation according to claim 7, which is characterized in that it further include two water treatment facilities groups, the
One water treatment facilities group is connect with first settling tank and fragmentation pulp grinder respectively, the second water treatment facilities group respectively with filter press
It is connected with the last one agitator tank, wherein
The water that second water treatment facilities group is used to separate filter press filters pressing is mixed into clear water as level Four after carrying out water process
Agitator tank water；
Pyatyi settling tank is connect with three-level agitator tank, and the water overflowed for Pyatyi settling tank enters three-level agitator tank；
Level Four settling tank is connect with second level agitator tank, and the water overflowed for level Four settling tank enters second level agitator tank；
Three-level settling tank is connect with level-one agitator tank, and the water overflowed for three-level settling tank enters level-one agitator tank；
Two-stage precipitation tank is connect with fragmentation pulp grinder, and the water overflowed for two-stage precipitation tank enters fragmentation pulp grinder, as
Slurrying liquid uses；
The water that first water treatment facilities group is used to overflow level-one settling tank enters fragmentation pulp grinder after carrying out water process, makees
For the use of slurrying liquid.
9. the system of soil remediation according to claim 8, which is characterized in that it further include dredge pump, the dredge pump peace
Loaded between fragmentation pulp grinder and first settling tank, it is used for mud material transmission to first settling tank.
10. the system of soil remediation according to claim 9, which is characterized in that it further include Pulp pump, the Pulp pump peace
After settling tank, the mud for precipitating settling tank sends next equipment to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501255.0A CN109365501A (en) | 2018-12-10 | 2018-12-10 | A kind of method and system of soil remediation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811501255.0A CN109365501A (en) | 2018-12-10 | 2018-12-10 | A kind of method and system of soil remediation |
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| CN109365501A true CN109365501A (en) | 2019-02-22 |
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| CN201811501255.0A Pending CN109365501A (en) | 2018-12-10 | 2018-12-10 | A kind of method and system of soil remediation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110014033A (en) * | 2019-05-07 | 2019-07-16 | 陆炯 | A kind of multistage repair system and its restorative procedure of metallic pollution soil |
| CN111136095A (en) * | 2019-12-05 | 2020-05-12 | 浙江海洋大学 | Water-phase liquid soil pollutant collecting device and method |
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| JP2006110466A (en) * | 2004-10-14 | 2006-04-27 | Nippon Kensetsu Gijutsu Kk | Contaminated soil treating method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111136095A (en) * | 2019-12-05 | 2020-05-12 | 浙江海洋大学 | Water-phase liquid soil pollutant collecting device and method |
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Application publication date: 20190222 |