CN206538352U - A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water - Google Patents
A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water Download PDFInfo
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- CN206538352U CN206538352U CN201621444572.XU CN201621444572U CN206538352U CN 206538352 U CN206538352 U CN 206538352U CN 201621444572 U CN201621444572 U CN 201621444572U CN 206538352 U CN206538352 U CN 206538352U
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Abstract
The utility model discloses a kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water, the permeable reactive brick is made up of surface layer, intermediate reaction layer and bottom；Described surface layer and bottom are mixed by crude iron CHARACTERISTICS OF TAILINGS SAND, portland cement, coarse steel slag, rubble and water, and intermediate reaction layer is mixed by iron-carbon micro-electrolysis haydite, portland cement.Described crude iron CHARACTERISTICS OF TAILINGS SAND particle diameter is 0.2 0.6 millimeters, and coarse steel slag particle diameter is 0.2 0.4 millimeters, and ballast grain sizes are 1.0 5.0 millimeters, and iron-carbon micro-electrolysis haydite particle diameter is 3.0 12.0 millimeters.The permeable reactive brick is molded using brickmaking machine pressurization and vibration.The utility model utilizes the mine solid wastes such as iron tailings sand, slag, and add iron-carbon micro-electrolysis haydite permeable reaction brick is made, with the characteristics of preparation technology is simple, compression strength is high, seepage of water is good, and the heavy metals such as Mercury in Water Body, arsenic, chromium, cadmium, lead and thallium can be effectively removed, heavy metal-polluted water harnessing project in situ will be widely used in.
Description
Technical field
The utility model belongs to field of environment engineering technology, is related to the purified in situ device of heavy metal-polluted water, more
Say it is a kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water body.
Background technology
With urbanization process and industrial and agricultural production, do not add the waste water containing heavy metal, waste residue and the waste gas of processing largely
Farm environment is discharged into, a large amount of agricultural land soils are caused by different degrees of pollution.Farmland soil heavy metals pollution refers to tool
There are mercury, chromium, cadmium, lead, copper, nickel, antimony, thallium, zinc of bio-toxicity etc. and metalloid arsenic, into after agricultural land soil, these elements
If long-term excess is present, not only there is negative effect to soil microbe quantity, population structure, soil enzyme activities, cause soil
Fertility declines, and the normal metabolic processes of interference crop, causes crop yield, quality decline, finally through food chain
Accumulated in human body, the health even life of the harm mankind.
The characteristics of pollution course of the heavy metal in agricultural land soil system has disguised, chronicity and irreversibility, and
It is and the heavy metal in farmland will be lost in river with rainwater and farmland irrigating water, the basin for causing large area is heavy metal-polluted
Dye.The recovery technique of current heavy metal pollution agricultural land soil mainly includes thermal desorption method, heavy metal pollution of soil, stably/immobilization technology, water
Wash method, microbial method, phytoremediation etc..These methods either have that efficiency is low or cost high or repairing efficiency length etc. lacks
Point, in addition, can in most cases cause the original biotic environment of soil to change.Permeable reaction wall（permeable
reactive barrier）It is that current European and American developed countries are generally studied, is developed well and have started to preliminary commercialization
One pollution waters restoration technology of application.Environmental Protection Agency（USEPA）Distribution in 1998《The PRB technologies that pollutant is repaired》
PRB is defined as by handbook：Dispose active material wall to intercept pollution pinnule in underground, pollution pinnule is passed through reaction
After medium, its pollutant can be converted into another form of environment receiving, so that realizing makes pollutant solubility reach environmental standard
Target.The flow direction that the technology pollutes reaction material pinnule in underground water is placed, when this pinnule stream
During reacted wall, occur the effects such as physics, chemistry and biology with reaction material and be degraded, adsorb, precipitate or remove, make dirt
Dye pinnule is handled, and permeable reactive barrier technology early stage is primarily used to the reparation of polluted underground water, following by this skill
The reparation that art is applied to earth's surface polluted-water need further research.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided a kind of in-situ immobilization heavy metal-containing polluted water
The permeable reactive brick of body.
The technical solution of the utility model is as follows：
A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water, it is characterised in that it is by abandoned mine top of the slag layer 1, iron
Carbon filler intermediate layer 2 and useless slag bottom layer 3 are constituted.Described surface layer and bottom are by crude iron CHARACTERISTICS OF TAILINGS SAND, portland cement, thick
Slag, rubble and water are mixed, and iron carbon filler intermediate layer is mixed by iron-carbon micro-electrolysis haydite, portland cement.Reaction
Surface layer, the intermediate reaction layer of brick are consistent with floor dimension.
Described abandoned mine top of the slag layer and useless slag bottom layer be by 15-40 parts of crude iron CHARACTERISTICS OF TAILINGS SANDs, 5-10 parts of portland cements,
20-30 parts of coarse steel slags, 10-30 parts of rubble compositions, described crude iron CHARACTERISTICS OF TAILINGS SAND particle diameter is 0.2-0.6 millimeters, coarse steel slag particle diameter
For 0.2-0.4 millimeters, ballast grain sizes are 1.0-5.0 millimeters.
Described iron carbon filler intermediate layer is made up of 80-90 parts of iron-carbon micro-electrolysis haydites and 10-20 parts of portland cements,
Described iron-carbon micro-electrolysis haydite particle diameter is 3.0-12.0 millimeters.
The permeable reactive brick is molded using non-baking brick machine pressurization and vibration, is made after maintenance with compression strength height,
Seepage of water is good, can effectively remove the reaction brick of the heavy metals such as mercury, arsenic, chromium, cadmium, lead and thallium in polluted-water.
The utility model further discloses the application method of permeable reactive brick, it is characterised in that will permeate anti-during implementation
Brick is answered to assemble the shore protection as heavy metal pollution farmland, tailing dam, lake and river etc., wherein when polluted-water oozed reaction brick
During wall, the heavy metal that the iron-carbon micro-electrolysis haydite in conversion zone will be removed effectively in sewage, it is ensured that the heavy metal concentration in water outlet
It is up to standard.Monitoring result shows：The system is 85~95% to Mercury in Water Body clearance, and arsenic removal rate maintains 80-90%, and chromium is removed
Rate is 80-95%, and cadmium clearance is 85-90%, and lead clearance is 85-95%, and thallium clearance is 70-85%.
The beneficial effects of the utility model are：
（1）A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water of the present utility model, energy is economical, effectively go
Except heavy metal in agricultural run-off, the engineerings such as tailing dam flood discharge Water warfare, mine tailings bank protection can also be applied to as emergency set
In, control Heavy Metals in Waters is lost in, and prevents the heavy metal pollution of area source of large area.
（2）Using permeable reactive brick of the present utility model, heavy metal pollution river course or lake are may be directly applied to, is led to
The wall for building permeable reactive brick structure by laying bricks or stones in water body is crossed, can be effectively in purifying water body when water body flows through reaction brick wall body
Heavy metal, the systematic difference improve river, Lake Water Body water quality, support area water conservancy safely, built man and nature and
Humorous water environment.
Brief description of the drawings
Fig. 1 is a kind of permeable reactive brick schematic diagram of in-situ immobilization heavy metal-polluted water of the present utility model;
Label in figure：1 is abandoned mine top of the slag layer, and 2 be iron carbon filler intermediate layer, and 3 be useless slag bottom layer.
Embodiment
Describe a kind of oozing for in-situ immobilization heavy metal-polluted water of the utility model in detail with reference to the accompanying drawings and examples
Transflection answers the structure of brick.But the present embodiment is not limited to the utility model, every to use similar structure of the present utility model
And its similar change, protection domain of the present utility model all should be included in.
Embodiment 1
A kind of making of permeable reactive brick of in-situ immobilization heavy metal-polluted water and application method
A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water, it is characterised in that it is by abandoned mine top of the slag layer 1, iron
Carbon filler intermediate layer 2 and useless slag bottom layer 3 are constituted.Described abandoned mine top of the slag layer and useless slag bottom layer are by 35 parts of crude iron mine tailings
Sand, 5 parts of portland cements, 30 parts of coarse steel slags, 30 parts of rubble compositions, described iron carbon filler intermediate layer is by 90 parts of micro- electricity of iron carbon
Haydite and 10 parts of portland cement compositions are solved, the good material of said ratio is molded using oscillating mode brickmaking machine pressurization and vibration, rule
Lattice are 240 × 115 × 90 millimeters, are made after maintenance and react brick well with compression strength height, seepage of water.
Using permeable reactive brick as the shore protection in mercury pollution farmland during implementation, mercury pollution water body oozed reaction brick masonry in farmland
Shore protection when, will with reaction brick in the middle of iron-carbon micro-electrolysis haydite occur absorption and ion-exchange reactions, effectively reduce water
Mercury concentration in body, clearance is up to more than 85%.
Embodiment 2
In Tianjin pollution of chromium irrigation canals and ditches end, by building permeable reactive brick wall, the system Inlet and outlet water is monitored, tied
Fruit shows the system to Cr in water body（Ⅵ）Clearance is 90%, and mechanism is redox and coprecipitation reaction, and product is mainly Fe
(OH) 3、Cr(OH)3, illustrate that the system can fast and effeciently remove the Cr in polluted-water（Ⅵ）, effectively prevent pollution of chromium
Water body causes pollution of area source.
Embodiment 3
In the lead tailings pollution streams of Guizhou, permeable reactive brick wall is built by being segmented, to streams upstream and downstream water body lead
Concentration is monitored, and it is 90% to lead clearance in water body as a result to show the system, and cutting mechanisms are that redox and coagulation are inhaled
Attached, product is Pb (0), Pb (OH)2, brick is reacted using iron-carbon micro-electrolysis haydite, can effectively anti-water-stop body basin lead contamination.
In summary, in the embodiment that content of the present utility model is not limited in, the knowledgeable people in same area can
Can propose other embodiments easily within technological guidance's thought of the present utility model, but this embodiment is included in
Within the scope of the utility model.
Claims (2)
1. a kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water, it is characterised in that it is by abandoned mine top of the slag layer（1）, iron
Carbon filler intermediate layer（2）With useless slag bottom layer（3）Composition.
2. the permeable reactive brick of in-situ immobilization heavy metal-polluted water according to claim 1, it is characterised in that reaction brick
Abandoned mine top of the slag layer, iron carbon filler intermediate layer are consistent with abandoned mine slag floor dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444572.XU CN206538352U (en) | 2016-12-27 | 2016-12-27 | A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444572.XU CN206538352U (en) | 2016-12-27 | 2016-12-27 | A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water |
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| Publication Number | Publication Date |
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| CN206538352U true CN206538352U (en) | 2017-10-03 |
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| CN201621444572.XU Expired - Fee Related CN206538352U (en) | 2016-12-27 | 2016-12-27 | A kind of permeable reactive brick of in-situ immobilization heavy metal-polluted water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115611350A (en) * | 2022-08-15 | 2023-01-17 | 河海大学 | Combined seepage interception reaction wall for harbour groundwater environment treatment |
-
2016
- 2016-12-27 CN CN201621444572.XU patent/CN206538352U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115611350A (en) * | 2022-08-15 | 2023-01-17 | 河海大学 | Combined seepage interception reaction wall for harbour groundwater environment treatment |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20191227 |