CN103406351B - A kind of renovation technique being applicable to pollute clay - Google Patents
A kind of renovation technique being applicable to pollute clay Download PDFInfo
- Publication number
- CN103406351B CN103406351B CN201310374645.7A CN201310374645A CN103406351B CN 103406351 B CN103406351 B CN 103406351B CN 201310374645 A CN201310374645 A CN 201310374645A CN 103406351 B CN103406351 B CN 103406351B
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- clay
- screening
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- pollution
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000004927 clay Substances 0.000 title claims abstract description 44
- 238000009418 renovation Methods 0.000 title claims abstract description 11
- 239000002689 soil Substances 0.000 claims abstract description 21
- 238000012216 screening Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000006641 stabilisation Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000007873 sieving Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000002585 base Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of be applicable to pollute clay renovation technique, the steps include: pending soil measure, add water, regulate pH value, dosing (stabilisation), stir, sieve, stand reaction, solidify and security landfill；The present invention can improve screening efficiency, improves treatment effect, screening operation is adjusted to after agitating procedure.Clay has stronger caking property and adherence when moisture content less, and water content is the fewest, and grogs distance is nearer, and molecular attraction is bigger, and caking property is the strongest.The existing technique screening clay time is longer, and screening efficiency is low.Will after screening operation adjusts, because of in processing procedure to add water, along with moisture increases, moisture film makes the distance between grogs strengthen, and molecular attraction weakens, and caking property and adherence reduce and be prone to screening, raising screening efficiency.While screening, dosing soil is served the effect again mixed, enhance treatment effect.
Description
Technical field
The present invention relates to a kind of renovation technique being applicable to pollute clay.
Background technology
Along with the development that workers and peasants produce and village urbanization is built, China's soil pollution spreads rapidly, and pollution level is gradually aggravated.After the heavy metal such as particle sedimentation and organic matter enter into soil environment in discharge of wastewater, the applications of pesticide, oil exploitation and air, destroy soil ecology, polluted underground water and agricultural product, thus jeopardize human health.Along with the pay attention to day by day of environmental protection, contaminated site administers the extensive concern having caused people.
Curing/stabilizing is the common method that contaminated site is administered, and has the advantages such as the process time is short, applied widely.The technological process that curing/stabilizing is conventional is: screening → dosing (stabilisation) → stir → solidify → store up.But, this technological process is not particularly suited for the clayed soil polluted, and clay has the strongest adherence and caking property, can adhere on appts wall and be difficult to sieve when sieving with broken scraper bowl, and treatment effeciency is low and treatment effect is poor.Therefore, the technological process optimizing curing/stabilizing has certain practical significance to the improvement polluting clay.
Summary of the invention
The technical problem to be solved in the present invention is the drawbacks described above how overcoming prior art, it is provided that a kind of renovation technique being applicable to pollute clay.
For solving above-mentioned technical problem, the present invention is applicable to pollute the renovation technique of clay, and it comprises the following steps:
1) pending soil metering: pending pollution clay loads dumper, with weight bridge weighing, is transported to disposal field after weighing, and point heap is disposed, pending pollution clay every heap weight 50t；
2) adding water: to through step 1) polluting in clay after metering add enough water, it is ensured that and soil moisture content is 20%～30%；
3) regulation pH: to through step 2) process after pollution clay in add acid or alkali is adjusted, regulate to acid-base condition needed for stabilization agent and pollutant reaction, utilize pH test paper to test；
4) dosing (stabilizes): to through step 3) process after pollution clay in add stabilization agent, chemical feeding quantity is 3%-5%；
5) stirring: by through step 4) process after clay utilize excavator to be stirred, mixing time is 1h；
6) screening: utilize sieving approach scraper bowl to through step 5) process after clay carry out sieving approach, screen out the building wastes such as the ratchel in clay, fragment of brick；
7) stand reaction: will be through step 6) process after clay stand 12h and more than；
8) curing reaction: to through step 7) process after soil in add curing agent, stir；
9) security landfill: by through step 8) process after soil detect, detect qualified soil and carry out security landfill, defective then return step 2) process to qualified rear security landfill.
Originally the renovation technique being applicable to pollute clay provides the benefit that: the present invention can improve screening efficiency, improves treatment effect, screening operation is adjusted to after agitating procedure.Clay has stronger caking property and adherence when moisture content less, and water content is the fewest, and grogs distance is nearer, and molecular attraction is bigger, and caking property is the strongest.The existing technique screening clay time is longer, and screening efficiency is low.Will after screening operation adjusts, because of in processing procedure to add water, along with moisture increases, moisture film makes the distance between grogs strengthen, and molecular attraction weakens, and caking property and adherence reduce and be prone to screening, raising screening efficiency.While screening, dosing soil is served the effect again mixed, enhance treatment effect.
Accompanying drawing explanation
The renovation technique that be applicable to pollute clay a kind of to the present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the schematic flow sheet being originally applicable to pollute the renovation technique of clay.
Detailed description of the invention
As it is shown in figure 1, the present invention is applicable to pollute the renovation technique of clay, it comprises the following steps:
1) pending soil metering: pending pollution clay loads dumper, with weight bridge weighing, is transported to disposal field after weighing, and point heap is disposed, pending pollution clay every heap weight 50t；
2) adding water: to through step 1) polluting in clay after metering add enough water, it is ensured that and soil moisture content is 20%～30%；
3) regulation pH: to through step 2) process after pollution clay in add acid or alkali is adjusted, regulate to acid-base condition needed for stabilization agent and pollutant reaction, utilize pH test paper to test；
4) dosing (stabilizes): to through step 3) process after pollution clay in add stabilization agent, chemical feeding quantity is 3%-5%；
5) stirring: by through step 4) process after clay utilize excavator to be stirred, mixing time is 1h；
6) screening: utilize sieving approach scraper bowl to through step 5) process after clay carry out sieving approach, screen out the building wastes such as the ratchel in clay, fragment of brick；
7) stand reaction: will be through step 6) process after clay stand 12h and more than；
8) curing reaction: to through step 7) process after soil in add curing agent, stir；
9) security landfill: by through step 8) process after soil detect, detect qualified soil and carry out security landfill, defective then return step 2) process to qualified rear security landfill.
It can be that professional and technical personnel in the field realize or use that above-mentioned embodiment is intended to illustrate the present invention; above-mentioned embodiment is modified and will be apparent from for those skilled in the art; therefore the present invention includes but not limited to above-mentioned embodiment; any the claims or specification of meeting describes; meet and principles disclosed herein and novelty, the product of inventive features and technique, within each falling within protection scope of the present invention.
Claims (1)
1. the renovation technique being applicable to pollute clay, it is characterised in that: comprise the following steps:
1) pending soil metering: pending pollution clay loads dumper, with weight bridge weighing, is transported to disposal field after weighing, and point heap is disposed, pending pollution clay every heap weight 50t；
2) adding water: to through step 1) polluting in clay after metering add enough water, it is ensured that and soil moisture content is 20%～30%；
3) regulation pH
: to through step 2) process after pollution clay in add acid or alkali is adjusted, regulate to acid-base condition needed for stabilization agent and pollutant reaction, utilize pH
Test paper is tested；
4) dosing: to through step 3) process after pollution clay in add stabilization agent, chemical feeding quantity is 3% 5%；
5) stirring: by through step 4) process after clay utilize excavator to be stirred, mixing time is 1h；
6) screening: utilize sieving approach scraper bowl to through step 5) process after clay carry out sieving approach, screen out the ratchel in clay, fragment of brick building waste；
7) stand reaction: will be through step 6) process after clay stand 12h and more than；
8) curing reaction: to through step 7) process after soil in add curing agent, stir；
9) security landfill: by through step 8) process after soil detect, detect qualified soil and carry out security landfill, defective then return step 2) process to qualified rear security landfill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374645.7A CN103406351B (en) | 2013-08-26 | 2013-08-26 | A kind of renovation technique being applicable to pollute clay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374645.7A CN103406351B (en) | 2013-08-26 | 2013-08-26 | A kind of renovation technique being applicable to pollute clay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103406351A CN103406351A (en) | 2013-11-27 |
| CN103406351B true CN103406351B (en) | 2016-08-31 |
Family
ID=49599418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310374645.7A Active CN103406351B (en) | 2013-08-26 | 2013-08-26 | A kind of renovation technique being applicable to pollute clay |
Country Status (1)
| Country | Link |
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| CN (1) | CN103406351B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532820A (en) * | 2014-12-12 | 2015-04-22 | 中国科学院武汉岩土力学研究所 | Polluted soil in-situ solidification/stabilization treatment device |
| CN104984989B (en) * | 2014-12-23 | 2017-05-03 | 格丰科技材料有限公司 | Method for removing active heavy metals from soil |
| CN111389900A (en) * | 2020-03-27 | 2020-07-10 | 招商局生态环保科技有限公司 | Contaminated soil solidification and stabilization equipment and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442499A (en) * | 2011-09-09 | 2012-05-09 | 盛世绍普(天津)环保科技有限公司 | Ectopic curing/stabilizing repair equipment, system and method |
| CN102921713A (en) * | 2012-10-30 | 2013-02-13 | 中国科学院武汉岩土力学研究所 | Solidification and stabilization treatment process for heavy-metal polluted soil |
| CN102950149A (en) * | 2012-05-15 | 2013-03-06 | 武汉市华鑫源环境科技有限公司 | Restoration method for organic contaminated soil |
-
2013
- 2013-08-26 CN CN201310374645.7A patent/CN103406351B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442499A (en) * | 2011-09-09 | 2012-05-09 | 盛世绍普(天津)环保科技有限公司 | Ectopic curing/stabilizing repair equipment, system and method |
| CN102950149A (en) * | 2012-05-15 | 2013-03-06 | 武汉市华鑫源环境科技有限公司 | Restoration method for organic contaminated soil |
| CN102921713A (en) * | 2012-10-30 | 2013-02-13 | 中国科学院武汉岩土力学研究所 | Solidification and stabilization treatment process for heavy-metal polluted soil |
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| Publication number | Publication date |
|---|---|
| CN103406351A (en) | 2013-11-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Qingjie Inventor after: Wang Tingtao Inventor after: Guo Bei Inventor after: Ke Yan Inventor after: Jia Shijie Inventor after: Chen Feng Inventor before: Han Qingjie |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170626 Address after: 266000 Shandong province Qingdao city Yanan Road No. 39 Patentee after: QINGDAO XINTIANDI ENVIRONMENTAL PROTECTION CO., LTD. Address before: Yanan City, Shandong province Qingdao City Road 266000 No. 39 Patentee before: Han Qingjie |
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| TR01 | Transfer of patent right |