CN204018363U - A kind of integration unit for contaminated soil reparation and revegetation - Google Patents
A kind of integration unit for contaminated soil reparation and revegetation Download PDFInfo
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- CN204018363U CN204018363U CN201320584889.3U CN201320584889U CN204018363U CN 204018363 U CN204018363 U CN 204018363U CN 201320584889 U CN201320584889 U CN 201320584889U CN 204018363 U CN204018363 U CN 204018363U
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Abstract
The utility model discloses a kind of integration unit for contaminated soil reparation and revegetation, collection, purification and recycling four parts of by original position plant, being fixed, entered infiltration are set up.Wherein phytoremediation district, is comprised of rehabilitation plant and contaminated soil, according to the concrete condition of contaminated soil and view requirement, selects suitable Pioneer plant community; Washing water passage, be positioned at the below that needs to repair soil layer, by dividing layer, leached layer, impermeable layer, formed successively from the top down, wherein there is certain slope leached layer below, and be that drainpipe junction is provided with PVC membrane filtration net at the leached layer place of converging, two-phase counter-slope angle, be convenient to the initial gross separation of moisture and particle and converging of moisture; Drainage channel, between two screen packs, fills by drainpipe and end the black wood charcoal compression polymerization sphere that specification is consistent, for receiving washing water to enter the preliminary absorption of processing region and drip washing organic pollutants etc.; Drug-throwing chamber, is built into by fluid-tight cement, and mixing plant is arranged at bottom, for mixing of medicine; Flocculation sediment chamber, for the deposition of pollutant; Clear water is recycled pond, is positioned at after settler, for the storage of water purification and clean rainwater; Filter, is comprised of filter membrane, screen pack, triple valve, Pressure gauge, after flocculation sediment, and the secondary filter of soluble pollutant still; Clean water is recharged pipeline; Fluid-tight water pipe and drip irrigation shower nozzle, consist of, for watering green planting, water pipe end is provided with venturi balling iron, and for adding medicament to improve the dissolubility of the difficult water-soluble pollutant of soil, the pouring of being convenient to pollutant goes out.
Description
Technical field
the utility model relates to contaminated soil restoration of the ecosystem field, particularly organic matter or the drip washing reparation of heavy-metal contaminated soil original position and moisture reutilization technology field.
Background technology
fast development along with urban economy, soil pollution is more and more serious, the soil resource that can be used for agriculture, forest development is more and more deficienter, in order to address this problem, people start Tu Yuan to lock onto contaminated soil, and as heavy metal pollution of mine soil, industrial or agricultural are given up, soil solid and that waste water causes is inorganic, organic contamination.Corresponding soil physics, chemistry, biological renovation method arise at the historic moment, but have certain limitation.Only, according to the concrete condition of contaminated soil, in line with the principle for the treatment of with a certain discrimination, meet target energy-conservation, that economize on water, save land, save investment, be only the direction that contaminated soil is repaired.
the utility model is used as the problem existing in afforestation land used for current contaminated soil, designed a kind of with phytoremediation, chemical leaching and after-treatment are recycled as the chemistry-microorganism-plant combined prosthetic device of core technology, finally make the contaminated soil leaching concentration after repairing should reach national underground water standard (GB14848-93) III class water quality requirement, moisture water outlet irrigation soils water quality after drip washing purifies reaches urban sewage reutilization water for scenic environment use water standard (GB/T 18921-2002), the rate of being recycled of moisture brings up to 50% ~ 82%.
Summary of the invention
a kind of integration unit for contaminated soil reparation and revegetation, collection, purification and recycling four parts of by original position plant, being fixed, entered infiltration are set up, comprise: phytoremediation district, by rehabilitation plant and the thick contaminated soil of 0.2m--1m, formed, according to the concrete condition of contaminated soil and view requirement, select suitable Pioneer plant community;
washing water passage, be positioned at the below that needs the rehabilitating soil degree of depth, from the top down successively by separate layer (being formed by porous materials such as geotextiles), leached layer (being formed by blinding or rough sand etc.), impermeable layer (fluid-tight antiseepage film material) forms, wherein, separate layer is used for separating soil and sneaks into leached layer, the leached layer of certain thickness and the bottom gradient, the pouring of being convenient to soil moisture moves and collects, at the metalling place of converging, two-phase counter-slope angle, be that drainpipe junction is respectively equipped with the pvc membrane filtration net that aperture is 1 ~ 2mm simultaneously, as one-level moisture filter, prevent rear line clogging, bottom is provided with impermeable layer, the HDPE antiseepage film that is 0.2mm ~ 3mm by thickness or LDPE antiseepage film form, the thing of preventing and remedying pollution moves downwards, polluted underground water,
drainage channel, starts between two screen packs, is the double wave soakaway trench of diameter 315mm ~ 500mm, and drainpipe does not fill up position and filled by the black wood charcoal compression polymerization sphere that is 5mm ~ 10mm by specification;
sewage diposal area, is recycled pond and is formed by drug-throwing chamber, flocculation sediment chamber, clear water, by fluid-tight cement, is built into, wherein mixing plant is arranged at drug-throwing chamber bottom, for mixing of medicine after offeing medicine, and flocculation sediment chamber, bottom is trapezoidal shape, for the deposition of pollutant; Clear water is recycled pond, is positioned at after settler, and pond is deeper than flocculation sediment chamber, for the storage of water purification and clean rainwater;
filter, is comprised of filter membrane, screen pack, triple valve, Pressure gauge, after flocculation sediment, and the secondary filter of soluble pollutant still;
clean water is recharged pipeline, consists of, for watering green planting water pipe and dropper shower nozzle.Water pipe end is provided with venturi balling iron, and for adding medicament to improve the dissolubility of the difficult water-soluble pollutant of soil, the pouring of being convenient to pollutant goes out.
preferably, the leached layer bottom of described washing water passage is skewed, its gradient is 15 ~ 25 °, be convenient to collecting of moisture, at the metalling place of converging, two-phase counter-slope angle, be that drainpipe junction is respectively equipped with the pvc membrane filtration net that aperture is 1 ~ 2mm simultaneously, as one-level moisture filter, control rear line clogging.
preferably, in described sewage diposal area, drug-throwing chamber mesospore is provided with high and low water alarm, and when water level is too low, water pump stops pumping, and when water level is too high, stops pouring water.
preferably in described sewage diposal area, flocculation sedimentation tank bottom is stepped, which is provided with a dismountable flexible base plate, the anaerobe culture medium and the fibrous activated carbon that on substrate, containing with good grounds sewage composition, arrange; At the right end of flocculation sedimentation tank, be provided with mud discharging mouth, be convenient to discharge and the recovery of mud simultaneously.
described filter preferably, after flocculation sediment, the secondary filter of soluble pollutant still, by two filters, (filter membrane and screen pack form; Filter membrane can be selected according to pollutant situation NF membrane, microfiltration membranes etc.), two triple valves, Pressure gauges form, when pressure tabular value exceeds limit value, can manual adjustments triple valve, thereby while making to change filter, do not affect whole flow process and effluent quality.
the beneficial effects of the utility model: the utility model has designed a kind ofly to be fixed for contaminated soil original position plant, after extraction and moisture drip washing, moisture is collected, purify and re-use device, with plant, chemical leaching is core, microbial technique is auxiliary combined remediation technology, can realize the fast purification of contaminated soil, the high efficiente callback utilization of moisture, finally make the contaminated soil leaching concentration after repairing should reach national underground water standard (GB14848-93) III class water quality requirement, moisture water outlet irrigation soils water quality after drip washing reaches urban sewage reutilization water for scenic environment use water standard (GB/T 18921-2002), the rate of being recycled of moisture brings up to 50% ~ 82%.
the utility model prevents that by washing water passage being set below contaminated soil, can playing the effect of waterlogging from appearring in soil, collects washing water and rainwater, effectively stops underground water pollution; Washing water passage rear arranges sewage diposal area, can play the recycling of washing water and rainwater, effectively checks secondary pollution, saving water resource.
Accompanying drawing explanation
fig. 1 be described in the utility model for contaminated soil original position plant fix, the schematic diagram of moisture collection after extraction and moisture drip washing, purification and re-use device.
The specific embodiment
below in conjunction with accompanying drawing, the utility model is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
as shown in Figure 1, the utility model provides a kind of integration unit for contaminated soil reparation and revegetation, collection, purification and recycling four parts of by original position plant, being fixed, entered infiltration are set up, comprise: phytoremediation district, by rehabilitation plant 1 and contaminated soil 2, formed, according to the concrete condition of contaminated soil and view requirement, select suitable Pioneer plant community, washing water passage, by separate layer, 3(is comprised of porous materials such as geotextiles), leached layer 4(is comprised of blinding or rough sand etc.), the fluid-tight antiseepage film of impermeable layer 6() form, at the metalling place of converging, two-phase counter-slope angle, be wherein that drainpipe junction is provided with pvc membrane filtration net 5, drainage channel 7, between two screen packs, the black wood charcoal ball consistent by the specification of drainpipe and interior cloth forms, for receiving washing water to enter processing region, sewage diposal area, by drug-throwing chamber 8, flocculation sedimentation tank 12, clear water is recycled pond 17 and is formed, in drug-throwing chamber, can select suitable medicament according to contaminated soil situation, as flocculating settling agents such as polyacrylamides, below drug-throwing chamber, be provided with mixing plant 9, so that medicine and water fully mix, reaction, simultaneously, on the sidewall of drug-throwing chamber, be provided with high and low water alarm device 10, in case the too high or too low harm causing of water level, in flocculation sedimentation tank, can select suitable anaerobe culture medium and microorganism and biological carbon cellulose fiber 13 according to contaminated soil situation, flocculation sedimentation tank below is provided with sewage draining exit, and by electrically operated valve 14, mud is entered and polluted after collecting chamber 15, continue to process, wherein between drug-throwing chamber and flocculation sedimentation tank, by pump 11, carry out moisture extraction, flocculation sedimentation tank and clear water are recycled pond and are carried out water transport by manually-operated gate 16, filter is comprised of two filter 20(filter membranes and screen pack, filter membrane can be selected according to pollutant situation NF membrane, microfiltration membranes etc.), 21 one-tenth, two triple valves 19, Pressure gauge group, when pressure tabular value exceeds limit value, can manual adjustments triple valve, thereby while making to change filter, do not affect whole flow process and effluent quality, clean water is recharged pipeline, by water pipe 22 and dropper shower nozzle 24, formed, water pipe end is provided with venturi balling iron 23, can add medicament according to actual conditions, such as rainy season, can add corresponding chelating agent (as EDTA, NTA etc.) according to soil regime, the dissolubility that improves difficult water-soluble pollutant in soil, the pouring of being convenient to pollutant goes out, in non-rainy season, adding medicine, does not improve fixing, extract and volatilization of plant.
Claims (9)
1.
an integration unit for contaminated soil reparation and revegetation, is characterized in that, comprising:
phytoremediation district, is comprised of rehabilitation plant and the thick contaminated soil of 0.2 ~ 1m, according to the concrete condition of contaminated soil and view requirement, selects suitable Pioneer plant community, washing water passage, be positioned at the below that needs the rehabilitating soil degree of depth, from the top down successively by separate layer, leached layer, impermeable layer, wherein, separate layer is comprised of porous geotextiles, be used for separating soil and sneak into leached layer, leached layer is comprised of the thick blinding of 20cm or the consistent thick sea sand of particle diameter, leached layer bottom has certain slope, the pouring of being convenient to soil moisture moves and collects, at the metalling place of converging, two-phase counter-slope angle, be that drainpipe junction is respectively equipped with the pvc membrane filtration net that aperture is 1 ~ 2mm simultaneously, as one-level moisture filter, prevent rear line clogging, bottom is provided with impermeable layer, the HDPE antiseepage film that is 0.2mm ~ 3mm by thickness or LDPE antiseepage film form, the thing of preventing and remedying pollution moves downwards, polluted underground water, drainage channel, starts between two screen packs, is the dual damascene porous pipe of diameter 315mm ~ 500mm, and drainpipe does not fill up the black wood charcoal compression polymerization sphere that position is 5mm ~ 10mm by specification and fills,
sewage diposal area, is recycled pond and is formed by drug-throwing chamber, flocculation sediment chamber, clear water, by fluid-tight cement, is built into, wherein mixing plant is arranged at drug-throwing chamber bottom, for mixing of medicine after offeing medicine, and flocculation sediment chamber, bottom is trapezoidal shape, is convenient to the deposition of pollutant;
clear water is recycled pond, is positioned at after settler, and pond is deeper than flocculation sediment chamber, for the storage of water purification and clean rainwater;
filter, is comprised of filter membrane, screen pack, triple valve, Pressure gauge, after flocculation sediment, and the secondary filter of soluble pollutant still;
clean water is recharged pipeline, water pipe and dropper shower nozzle, consists of, and for watering green planting, water pipe end is provided with venturi balling iron, and for adding medicament to improve the dissolubility of the difficult water-soluble pollutant of soil, the pouring of being convenient to pollutant goes out.
2.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, it is characterized in that, the leached layer bottom of described washing water passage is skewed, its gradient is 15 ° ~ 25 °, be convenient to collecting of moisture, at the metalling place of converging, two-phase counter-slope angle, be that drainpipe junction is respectively equipped with the pvc membrane filtration net that aperture is 1 ~ 2mm simultaneously, as one-level moisture filter, prevent rear line clogging.
3.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1; it is characterized in that; described drainage channel; start between two screen packs; dual damascene porous pipe for diameter 315mm ~ 500mm; drainpipe does not fill up the black wood charcoal compression polymerization sphere that position is 5mm ~ 10mm by specification and fills; can play support protective effect to drainpipe; pollutant in washing water is had to preliminary absorption, black wood charcoal compression polymerization ball packing is located at end and can under the prerequisite of not destroying whole flow process, be changed simultaneously.
4.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, is characterized in that, in described sewage diposal area, drug-throwing chamber mesospore is provided with high and low water alarm, and when water level is too low, water pump stops pumping.
5.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, it is characterized in that, in described sewage diposal area, flocculation sedimentation tank bottom is stepped, which is provided with a dismountable flexible base plate, the anaerobe and culture medium and the fibrous activated carbon that on substrate, containing with good grounds sewage composition, arrange; At the right end of flocculation sedimentation tank, be provided with mud discharging mouth, be convenient to discharge and the recovery of mud simultaneously.
6.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, is characterized in that, in described sewage diposal area, between drug-throwing chamber and flocculation sediment chamber, by pump, is connected; Flocculation sediment chamber is recycled between pond and is connected by manually operated door with clear water, and manually operated door position exceeds 20 ~ 30cm than flocculation sedimentation tank bottom.
7.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, is characterized in that, in described sewage diposal area, clear water is recycled pond than the dark 20 ~ 30cm of flocculation sedimentation tank.
8.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, is characterized in that, described filter, and after flocculation sediment, the secondary filter of soluble pollutant still, by two filters, filter membrane and screen pack form; Filter membrane can select NF membrane, microfiltration membranes, two triple valves, Pressure gauges to form according to pollutant situation.
9.
a kind of integration unit for contaminated soil reparation and revegetation as claimed in claim 1, is characterized in that, described clean water is recharged pipe end and is provided with venturi balling iron.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584889.3U CN204018363U (en) | 2013-09-23 | 2013-09-23 | A kind of integration unit for contaminated soil reparation and revegetation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584889.3U CN204018363U (en) | 2013-09-23 | 2013-09-23 | A kind of integration unit for contaminated soil reparation and revegetation |
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| CN204018363U true CN204018363U (en) | 2014-12-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671385A (en) * | 2015-01-14 | 2015-06-03 | 同济大学 | Method for controlling pollution of ground water of sulfate polluted site and remediating soil |
| CN105750318A (en) * | 2016-05-05 | 2016-07-13 | 长江水利委员会长江科学院 | Device and method for removing heavy metals in soil |
| CN106180165A (en) * | 2016-07-28 | 2016-12-07 | 崔晓辉 | A kind of for arsenic contaminated soil cleaning equipment |
| CN108097710A (en) * | 2017-12-01 | 2018-06-01 | 常州大学 | A kind of original position soil prosthetic device |
| CN108994062A (en) * | 2018-09-20 | 2018-12-14 | 东北师范大学 | A kind of heavy-metal contaminated soil original position leaching repairing method of dry and wet combination plantation |
| CN111887136A (en) * | 2020-07-16 | 2020-11-06 | 海南广军实业有限公司 | Farmland water-saving device and method |
| CN113228869A (en) * | 2021-04-22 | 2021-08-10 | 黑龙江省农业科学院草业研究所 | Comprehensive biological improvement method for severe saline-alkali grassland |
-
2013
- 2013-09-23 CN CN201320584889.3U patent/CN204018363U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671385A (en) * | 2015-01-14 | 2015-06-03 | 同济大学 | Method for controlling pollution of ground water of sulfate polluted site and remediating soil |
| CN105750318A (en) * | 2016-05-05 | 2016-07-13 | 长江水利委员会长江科学院 | Device and method for removing heavy metals in soil |
| CN106180165A (en) * | 2016-07-28 | 2016-12-07 | 崔晓辉 | A kind of for arsenic contaminated soil cleaning equipment |
| CN108097710A (en) * | 2017-12-01 | 2018-06-01 | 常州大学 | A kind of original position soil prosthetic device |
| CN108994062A (en) * | 2018-09-20 | 2018-12-14 | 东北师范大学 | A kind of heavy-metal contaminated soil original position leaching repairing method of dry and wet combination plantation |
| CN108994062B (en) * | 2018-09-20 | 2021-01-08 | 东北师范大学 | In-situ leaching remediation method for heavy metal contaminated soil by dry-wet combined planting |
| CN111887136A (en) * | 2020-07-16 | 2020-11-06 | 海南广军实业有限公司 | Farmland water-saving device and method |
| CN113228869A (en) * | 2021-04-22 | 2021-08-10 | 黑龙江省农业科学院草业研究所 | Comprehensive biological improvement method for severe saline-alkali grassland |
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Granted publication date: 20141217 |
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| CX01 | Expiry of patent term |