CN104478085A - Anti-seepage treatment method for constructed wetland structure - Google Patents
Anti-seepage treatment method for constructed wetland structure Download PDFInfo
- Publication number
- CN104478085A CN104478085A CN201410661054.2A CN201410661054A CN104478085A CN 104478085 A CN104478085 A CN 104478085A CN 201410661054 A CN201410661054 A CN 201410661054A CN 104478085 A CN104478085 A CN 104478085A
- Authority
- CN
- China
- Prior art keywords
- artificial swamp
- constructed wetland
- polyurea
- water inlet
- seepage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Abstract
The invention relates to an anti-seepage treatment method for a constructed wetland structure. The anti-seepage treatment method comprises the following steps: spraying a polyurea anti-seepage layer according to different inflow water qualities, different inflow water pollutants varieties, different suspended particulate matter concentrations and different particle sizes, and realizing different inflow water conditions and different polyurea layer thicknesses, specifically when the inflow water pH value of the constructed wetland is 6.5-8 or the concentration of the inflow water suspended solids is lower than 20mg/L, the spraying thickness of the polyurea on the surface of the constructed wetland structure is 1-1.5mm; when the inflow water pH value of the constructed wetland is lower than 6.5 or higher than 8 or the concentration of the inflow water suspended solids is 21-50mg/L, the spraying thickness of the polyurea on the surface of the constructed wetland structure is 1.5-2mm; and when the concentration of the inflow water suspended solids of the constructed wetland is higher than 51mg/L, the spraying thickness of the polyurea on the surface of the constructed wetland structure is 2-4mm. The traditional geomembrane and asphalt are replaced by adopting a polyurea material, and substances with toxicity on organisms in the constructed wetland are not released in the process of contacting the polyurea material with sewage; and meanwhile, the anti-seepage requirement of the constructed wetland is met, and the adhesiveness on the surface of the anti-seepage material and the constructed wetland pool structure can be improved.
Description
Technical field
The present invention relates to a kind of artificial swamp structure anti-seepage processing method, belong to field of environment protection.
Background technology
Current artificial swamp many employings geomembrane, pitch are as the major technique of pond body antiseepage, but this technology in use exists resistant abrasion ability, seam crossing easily seeps water, affect the problems such as artificial swamp steady running containing toxic substance in part geomembrane inferior.Therefore how to improve the seepage capability of artificial swamp pond body, finding more efficient, safe impervious material is Important Problems in Artificial Wetland Techniques application process all the time.
Polyurea elastomer material is one of very fast coated material of development in recent years, this technology has solvent-free, pollution-free, its polyurea coating formed not only possesses good mechanical property, and antiseep, resistant abrasion, freeze-thaw-, antifatigue are destroyed, the excellent performance such as corrosion-resistant, ageing-resistant, quick construction, easy.At present, polyurea materials is widely used in the surface spraying of bridge pier, aqueduct, flooring Deng Gong China Democratic National Construction Association conventional building construction, and the application in hydraulic anti-seepage is still in the starting stage, polyurea materials is applied to the information then rarely seen report of body antiseepage aspect, artificial swamp pond.
Summary of the invention
In view of above-mentioned technology Problems existing, the object of this invention is to provide a kind of artificial swamp structure anti-seepage processing method, the method carries out improving for existing artificial swamp impervious barrier material, technique is optimized, improve the seepage capability of artificial swamp pond body, improve the cohesive strength of impervious material and basal layer, impervious material nontoxicity simultaneously.
To achieve these goals, the technical solution adopted in the present invention is: a kind of artificial swamp structure anti-seepage processing method, comprise artificial swamp structure, described artificial swamp structure from lower from comprising bottom surface, impervious barrier, packing layer, described impervious barrier bottom also has basal layer, described basal layer is concrete material, it is characterized in that impervious barrier is polyurea materials, its anti-seepage processing method is: according to the difference of influent quality, water inlet pollutant kind, the difference of suspended particulate matter concentration and particle diameter, polyureas impervious barrier is sprayed, realize different flow condition polyurea layer thickness different, be specially: when artificial swamp water inlet pH value be 6.5-8 or water inlet concentration of suspension lower than 20mg/L time, artificial swamp body structure surface polyureas coating thickness is 1-1.5mm, when artificial swamp water inlet pH value is lower than 6.5 or higher than 8, or when water inlet concentration of suspension is 21-50mg/L, artificial swamp body structure surface polyureas coating thickness is 1.5-2mm, when artificial swamp water inlet concentration of suspension is higher than 51mg/L, artificial swamp body structure surface polyureas coating thickness is 2-4mm.
Polyurea materials is adopted to substitute the barrier technologies such as traditional geomembrane, pitch, the cohesiveness on impervious material and body structure surface, artificial swamp pond can be improved, polyureas is adopted to carry out the artificial swamp of Anti-seeping technology, its impervious barrier and base concrete cohesive strength are greater than 3.0 MPa,, still keep the unit elongation of more than 50% in the winter time under-30 DEG C of cold condition simultaneously; Can not discharge virose material biological in wetland in polyurea materials and waste water process.The surface, pond of spray polyurea coating is without the need to laying waterproof mortar, and pond base concrete protective layer thickness is 20-40mm.
Described work wetland structure anti-seepage processing method, is less than 30 m/s artificial swamp resistant abrasion protection for flow velocity of intaking and protects with surface durability.
Described work wetland structure anti-seepage processing method, the spraying of polyureas impervious barrier can adopt mechanically spraying or artificial blade coating and in the body of artificial swamp pond, form a jointless flexible water overall.
The invention has the beneficial effects as follows: the present invention adopts polyurea materials to substitute traditional geomembrane, pitch, can not discharge virose material biological in wetland in polyurea materials and waste water process; While the antiseepage of guarantee artificial swamp requires, the cohesiveness on impervious material and body structure surface, artificial swamp pond can be improved, improve its structure splitting resistance; The spraying coating process of polyureas impervious barrier, avoids artificial swamp to enter water pollutant to large particulate matter in the burn into control artificial swamp water inlet of polyureas impervious barrier to the impact of impervious barrier and wearing and tearing.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
A kind of artificial swamp structure anti-seepage processing method, according to the difference of influent quality, the difference of water inlet pollutant kind, suspended particulate matter concentration and particle diameter, sprays polyureas impervious barrier, realizes different flow condition polyurea layer thickness different, is specially:
When artificial swamp water inlet pH value is 6.5-8, artificial swamp body structure surface polyureas coating thickness is 1-1.5mm;
When water suspension concentration is lower than 20mg/L, artificial swamp body structure surface polyureas coating thickness is 1-1.5mm.
When artificial swamp water inlet PH is lower than 6.5, artificial swamp body structure surface polyureas coating thickness is 1.5mm;
When artificial swamp water inlet PH is 9.5, artificial swamp body structure surface polyureas coating thickness is 2mm;
When concentration of suspension of intaking is 21mg/L, artificial swamp body structure surface polyureas coating thickness is 1.5-2mm;
When concentration of suspension of intaking is 21-50mg/L, artificial swamp body structure surface polyureas coating thickness is 1.5-2mm.
When artificial swamp water inlet concentration of suspension is higher than 51mg/L, artificial swamp body structure surface polyureas coating thickness is 2-4mm.
Claims (3)
1. an artificial swamp structure anti-seepage processing method, comprise artificial swamp structure, described artificial swamp structure from lower from comprising bottom surface, impervious barrier, packing layer, described impervious barrier bottom also has basal layer, described basal layer is concrete material, it is characterized in that impervious barrier is polyurea materials, its anti-seepage processing method is: according to the difference of influent quality, water inlet pollutant kind, the difference of suspended particulate matter concentration and particle diameter, polyureas impervious barrier is sprayed, realize different flow condition polyurea layer thickness different, be specially: when artificial swamp water inlet pH value be 6.5-8 or water inlet concentration of suspension lower than 20mg/L time, artificial swamp body structure surface polyureas coating thickness is 1-1.5mm, when artificial swamp water inlet pH value is lower than 6.5 or higher than 8, or when water inlet concentration of suspension is 21-50mg/L, artificial swamp body structure surface polyureas coating thickness is 1.5-2mm, when artificial swamp water inlet concentration of suspension is higher than 51mg/L, artificial swamp body structure surface polyureas coating thickness is 2-4mm.
2. a kind of artificial swamp structure anti-seepage processing method according to claim, it is characterized in that being less than 30 protection of m/s artificial swamp resistant abrasion and surfacecti proteons for flow velocity of intaking.
3. a kind of artificial swamp structure anti-seepage processing method according to claim, is characterized in that the spraying of polyureas impervious barrier can adopt mechanically spraying or artificial blade coating and in the body of artificial swamp pond, form a jointless flexible water overall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661054.2A CN104478085A (en) | 2014-11-19 | 2014-11-19 | Anti-seepage treatment method for constructed wetland structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661054.2A CN104478085A (en) | 2014-11-19 | 2014-11-19 | Anti-seepage treatment method for constructed wetland structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104478085A true CN104478085A (en) | 2015-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410661054.2A Pending CN104478085A (en) | 2014-11-19 | 2014-11-19 | Anti-seepage treatment method for constructed wetland structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178316A (en) * | 2017-12-31 | 2018-06-19 | 北京东方园林环境股份有限公司 | A kind of geomembrane anti-seepage layer protection structure of artificial swamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951866A (en) * | 1996-07-31 | 1999-09-14 | Grove; John E. | Cold climate wetland waste water treatment system |
| CN200981840Y (en) * | 2006-05-31 | 2007-11-28 | 山东大学 | Novel undercurrent artificial wet land |
| CN202787333U (en) * | 2012-03-29 | 2013-03-13 | 中国水利水电科学研究院 | Concrete surface protection structure of marine construction |
| CN203269659U (en) * | 2013-05-28 | 2013-11-06 | 天津市环境保护科学研究院 | High-efficiency nitrogen removal three-stage composite constructed wetland |
| CN204097273U (en) * | 2014-04-04 | 2015-01-14 | 环境保护部南京环境科学研究所 | A kind of artificial wet land system being suitable for cold operation |
-
2014
- 2014-11-19 CN CN201410661054.2A patent/CN104478085A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5951866A (en) * | 1996-07-31 | 1999-09-14 | Grove; John E. | Cold climate wetland waste water treatment system |
| CN200981840Y (en) * | 2006-05-31 | 2007-11-28 | 山东大学 | Novel undercurrent artificial wet land |
| CN202787333U (en) * | 2012-03-29 | 2013-03-13 | 中国水利水电科学研究院 | Concrete surface protection structure of marine construction |
| CN203269659U (en) * | 2013-05-28 | 2013-11-06 | 天津市环境保护科学研究院 | High-efficiency nitrogen removal three-stage composite constructed wetland |
| CN204097273U (en) * | 2014-04-04 | 2015-01-14 | 环境保护部南京环境科学研究所 | A kind of artificial wet land system being suitable for cold operation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178316A (en) * | 2017-12-31 | 2018-06-19 | 北京东方园林环境股份有限公司 | A kind of geomembrane anti-seepage layer protection structure of artificial swamp |
| CN108178316B (en) * | 2017-12-31 | 2023-07-25 | 北京东方园林环境股份有限公司 | Geomembrane impermeable layer protection structure of constructed wetland |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |
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| WD01 | Invention patent application deemed withdrawn after publication |