CN102557348A - Soil remediation and sewage purification integrated ecological treatment device - Google Patents
Soil remediation and sewage purification integrated ecological treatment device Download PDFInfo
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- CN102557348A CN102557348A CN2012100047282A CN201210004728A CN102557348A CN 102557348 A CN102557348 A CN 102557348A CN 2012100047282 A CN2012100047282 A CN 2012100047282A CN 201210004728 A CN201210004728 A CN 201210004728A CN 102557348 A CN102557348 A CN 102557348A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to a soil remediation and sewage purification integrated ecological treatment device. In the device, constructed wetland is surface flow constructed wetland and sequentially comprises a surface soil layer, a deep treatment layer, a draining layer, a filter layer and a water guide layer from top to bottom, wherein the surface soil layer is composite soil formed by mixing soil infected by heavy metal, a zeolite molecular sieve and bentonite; the deep treatment layer is iron carbon filler; the draining layer is gravel; the filter layer is non-woven fabric; upper and lower layers of gravel fillers are paved on the water guide layer and the middle part of the water guide layer is separated by the non-woven fabric; an alkaline injection device is arranged at the water inlet end of the constructed wetland and used for controlling the pH value of the constructed wetland and preventing the heavy metal in the constructed wetland from being separated out; an aeration disc is arranged at the bottom of an integrated ecological pool; a water distributor is arranged above the aeration disc; flowing fillers are filled in the integrated ecological pool; an artificial ecological floating bed is floated on the surface of the pool; and a water outlet of the constructed wetland is connected with the integrated ecological pool through a pressure pump. The device performs soil remediation and sewage purification and makes the soil remediation process simple and practical.
Description
Technical field
The invention belongs to the United Technologies of WWT and soil remediation; The integrated ecological treatment apparatus that relates to a kind of soil remediation and sewage purification particularly; When disposing of sewage, the soil that infected by heavy metal is repaired, form by repairing type artificial swamp and integration ecological pond.
The invention still further relates to and utilize said apparatus to carry out the method for soil remediation and sewage purification.
Background technology
In recent years, China's heavy metal contamination alarm bell is beaten again and again, " the cadmium rice disturbance " from " blood lead incident " to the shock whole nation; In rapid succession; If let alone the lasting generation of heavy metal pollution of soil, according to present development trend, the heavy metal pollution of soil accumulation will further aggravate after the several years; In case heavy metal content reaches pathogenic degree, situation is just with irremediable.Existing soil remediation technology not only construction cost, working cost is high, and operational means is complicated, and repairing effect is not high.
Summary of the invention
The object of the present invention is to provide the integrated ecological treatment apparatus of a kind of soil remediation and sewage purification.
Another purpose of the present invention is to provide the method for utilizing said apparatus to carry out soil remediation and sewage purification.
For realizing above-mentioned purpose, the integrated ecological treatment apparatus of soil remediation provided by the invention and sewage purification mainly is made up of artificial swamp and integration ecological pond, wherein:
Artificial swamp is the surface low artificial swamp, is followed successively by from top to bottom:
The surface soil layer is mixed the composite soil of forming by the soil that infected by heavy metal, zeolite molecular sieve and wilkinite;
The advanced treatment layer is the iron carbon filler;
The draining layer is gravel;
Filtering layer is non-woven fabrics;
The water guide layer is equipped with two-layer gravel filling up and down, and the centre separates with non-woven fabrics;
The feed-water end of artificial swamp is provided with alkaline injection device, and the pH value with the control artificial swamp prevents that the heavy metal in the artificial swamp from separating out;
The integration ecological pond, its bottom is provided with aeration plate, and the aeration plate top is provided with water distributor, and the inside in integration ecological pond is filled with mobile filler, and the pond face is floating to have artificial ecology to float bed;
The water outlet of artificial swamp connects the integration ecological pond through force (forcing) pump.
The integrated ecological treatment apparatus of said soil remediation and sewage purification, wherein, the bottom of artificial swamp is a slope to water outlet, and its gradient is 0.1% more excellently.
The integrated ecological treatment apparatus of said soil remediation and sewage purification, wherein, the plant of the surface soil layer of artificial swamp plantation is Herba pteridis vittatae, Herba Houttuyniae, gold leaf glossy privet, reed and the sainfoin that heavy metal is had ultra inrichment.
The integrated ecological treatment apparatus of said soil remediation and sewage purification, wherein, upward plantation has typha orientalis to the floating bed in integration ecological pond, power is spent again, and the plantation ratio is 1: 1.
The integrated ecological treatment apparatus of said soil remediation and sewage purification, wherein, aeration plate connects an aerator.
The integrated ecological treatment apparatus of said soil remediation and sewage purification wherein, is connected with under meter between aerator and the aeration plate.
The integrated ecological treatment apparatus of said soil remediation and sewage purification, wherein, the nozzle of water distributor is a convergent nozzle.
The present invention utilizes said apparatus to carry out the method for soil remediation and sewage purification; Be after waste water is flowed into artificial swamp; Open alkaline injection device injection alkaline solution (like sodium carbonate solution), the surface soil layer pH of control artificial swamp is slight alkalinity, prevents that heavy metal from separating out; The plant of artificial swamp plantation is adsorbed heavy metal;
Sewage after the processing imports the integration ecological pond, opens aerator simultaneously, and the filler that flows is flowed in welter, under aerobic environment, clears up pollution substance remaining in the sewage through plant adsorption and microorganism growth effect.
Described method wherein, is gathered in also serike again behind the plant absorption heavy metal.
The present invention is made up of artificial swamp and integration ecological pond.Artificial swamp can be repaired the soil that infected by heavy metal when disposing of sewage, and integration ecological pond of series connection prevents the leakage of heavy metal in the wetland in the artificial swamp rear end, and sewage is carried out advanced treatment.The employing artificial swamp of the invention property is administered the heavy metal pollution of soil problem, and soil remediation and WWT are carried out simultaneously, and effect is better, and easy handling becomes simple with the soil remediation process.
Description of drawings
Fig. 1 is the structural representation of the integrated ecological treatment apparatus of soil remediation of the present invention and sewage purification.
Primary clustering nomenclature in the accompanying drawing:
1 artificial swamp; 2 integration ecological ponds; 3 surface soil layers; 4 advanced treatment layers; 5 draining layers; 6 filtering layers; 7 water guide layers; 8 mobile fillers; The floating bed of 9 artificial ecologys; 10 water inlet nozzles; 11 aeration plates; 12 aerators; 13 alkaline injection devices; 14 force (forcing) pumps.
Embodiment
Please combine shown in Figure 1, the integrated ecological treatment apparatus of soil remediation provided by the invention and sewage purification, primary structure is:
Artificial swamp is the surface low artificial swamp, is followed successively by five parts such as the surperficial pedosphere of branch 3, advanced treatment layer 4, draining layer 5, filtering layer 6 and water guide layer 7 from top to bottom.The thickness of surface soil layer 3 is 0.5m; Mix the composite soil of forming by the soil that infected by heavy metal, zeolite molecular sieve and a small amount of wilkinite; Can be used for serike; The plant of plantation is selected Herba pteridis vittatae, Herba Houttuyniae, gold leaf glossy privet, reed and the sainfoin etc. that heavy metal had ultra inrichment for use, in the absorption heavy metal, also has landscape effect; Advanced treatment layer 4 is the iron carbon filler of thick 0.3m; Draining layer 5 is the gravel of thick 0.2m, and particle diameter is 4mm-8mm; Filtering layer is the non-woven fabrics of thickness 50mm; Water guide bed thickness 30mm lays gravel filling, divides upper and lower two-layerly, middlely separates through non-woven fabrics, and the particle diameter of upper strata gravel filling is 8mm-15mm, and the particle diameter of lower floor's gravel filling is 15mm-30mm.
The feed-water end of artificial swamp is provided with known alkaline injection device 13, and the pH of control wetland is meta-alkalescence (the pH value is about 7-9) slightly, prevents separating out of wetland heavy metal;
The bottom of artificial swamp is a slope, and its gradient is 0.1%, so that reach better water guide effect.
The water outlet of artificial swamp directly imports integration ecological pond 2 through force (forcing) pump 14.The bottom in this integration ecological pond 2 is provided with aeration plate 11, and aeration plate 11 connects the outside aerator 12 in integration ecological pond through under meter (known technology, not shown in the figures); Aeration plate 11 tops are provided with water distributor 10; Be filled with the filler 8 (like known modification biological floating stuffing, stereo hollow fluidized-bed filler) that flows in the pond, the pond face is the floating bed 9 of artificial ecology adrift.Artificial ecology is floated and is planted typha orientalis on the bed 9, power is spent again, and the plantation ratio is 1: 1, and this moment is better to the assimilation effect of ammonia nitrogen, has landscape effect simultaneously.
The nozzle of the water distributor 10 of 2 inside, integration ecological pond is convergent nozzles, under the effect of force (forcing) pump 14, strengthens stream competence, and the flowability of reinforcing filler in water distribution improves its treatment effect.
Artificial swamp of the present invention can be repaired the soil that infected by heavy metal when disposing of sewage, and integration ecological pond of series connection prevents the leakage of heavy metal in the wetland in repairing type artificial swamp rear end, and sewage is carried out advanced treatment.
When the integrated ecological treatment apparatus of soil remediation of the present invention and sewage purification uses, sewage is deployed in the artificial swamp, in artificial swamp, is divided into plant treatment and microbiological treatment two portions.
The plant treatment part; Be to utilize the anti-heavy metal plant or the ultra activity of accumulating plant reduction heavy metal of planting on the surface soil layer; And the root hair that passes through plant directly adsorbs heavy metal with fixing from the soil exchange; Then heavy metal hyperaccumulative plant is drawn metal pollutant from soil, gathers in over-ground part subsequently and focuses on.This plant of plantation reaches the purpose that reduces or remove heavy metal pollution of soil continuously.The mikrobe partly mikrobe of the root system of plant through plantation reduces the toxicity of heavy metal in soil, absorption accumulation heavy metal; Mikrobe can change rhizosphere environment simultaneously, thereby improves absorption, volatilization or the fixed efficiency of plant to heavy metal.
Be filled with high efficiency mobile filler in the integration ecological pond; The water surface is provided with the floating bed of artificial ecology, under aerobic environment, through plant adsorption and microorganism growth effect advanced treatment is carried out in the water outlet of artificial swamp, and pollution substance remaining in the sewage is not only cleared up in this step reaction; Its water outlet ammonia nitrogen, total phosphorus, COD removal effect are up to 90-95%; Running cost is low, and effluent quality is good, satisfies national sewage discharge requirement.
Waste water flows into artificial swamp, and water inlet back 30min opens alkaline injection device, carries out the fs and handles.Sewage after the processing imports the integration ecological pond through the convergent nozzle pressurization under the supercharging of pressure pump, open aerator simultaneously; Under the flow action after the pressurization and under the aeration effect of aeration plate, the filler that flows flows in welter, and the filler flowability strengthens greatly, and the plant growing way is also more luxuriant.
Claims (9)
1. the integrated ecological treatment apparatus of soil remediation and sewage purification mainly is made up of artificial swamp and integration ecological pond, wherein:
Artificial swamp is the surface low artificial swamp, is followed successively by from top to bottom:
The surface soil layer is mixed the composite soil of forming by the soil that infected by heavy metal, zeolite molecular sieve and wilkinite;
The advanced treatment layer is the iron carbon filler;
The draining layer is gravel;
Filtering layer is non-woven fabrics;
The water guide layer is equipped with two-layer gravel filling up and down, and the centre separates with non-woven fabrics;
The feed-water end of artificial swamp is provided with alkaline injection device, and the pH value with the control artificial swamp prevents that the heavy metal in the artificial swamp from separating out;
The integration ecological pond, its bottom is provided with aeration plate, and the aeration plate top is provided with water distributor, and the inside in integration ecological pond is filled with mobile filler, and the pond face is floating to have artificial ecology to float bed;
The water outlet of artificial swamp connects the integration ecological pond through force (forcing) pump.
2. according to the integrated ecological treatment apparatus of said soil remediation of claim 1 and sewage purification, wherein, the bottom of artificial swamp is a slope to water outlet, and its gradient is 0.1%.
3. according to the integrated ecological treatment apparatus of claim 1 or 2 said soil remediation and sewage purification, wherein, the plant of the surface soil layer of artificial swamp plantation is Herba pteridis vittatae, Herba Houttuyniae, gold leaf glossy privet, reed and the sainfoin that heavy metal is had ultra inrichment.
4. according to the integrated ecological treatment apparatus of said soil remediation of claim 1 and sewage purification, wherein, upward plantation has typha orientalis to the floating bed in integration ecological pond, power is spent again, and the plantation ratio is 1: 1.
5. according to the integrated ecological treatment apparatus of said soil remediation of claim 1 and sewage purification, wherein, aeration plate connects an aerator.
6. according to the integrated ecological treatment apparatus of said soil remediation of claim 1 and sewage purification, wherein, be connected with under meter between aerator and the aeration plate.
7. according to the integrated ecological treatment apparatus of said soil remediation of claim 1 and sewage purification, wherein, the nozzle of water distributor is a convergent nozzle.
8. the method for utilizing the said device of claim 1 to carry out soil remediation and sewage purification, waste water flowed into artificial swamp after, open alkaline injection device injection alkaline solution, the surface soil layer pH of control artificial swamp is slight alkalinity, prevents that heavy metal from separating out; The plant of artificial swamp plantation is adsorbed heavy metal;
Sewage after the processing imports the integration ecological pond, opens aerator simultaneously, and the filler that flows is flowed in welter, under aerobic environment, clears up pollution substance remaining in the sewage through plant adsorption and microorganism growth effect.
9. method according to claim 8 wherein, is gathered in also serike again behind the plant absorption heavy metal.
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| CN103420544A (en) * | 2013-08-14 | 2013-12-04 | 广西大学 | In-situ water repair method for clean aquaculture |
| CN103464454A (en) * | 2013-10-11 | 2013-12-25 | 南开大学 | Method for renovating soil suffered from multiple pollution of cadmium, lead and arsenic with ligustrum malongense |
| CN103708672A (en) * | 2012-10-09 | 2014-04-09 | 中国科学院城市环境研究所 | An efficient purification method of heavy-metal waste water by combining plants and enrichment by a composite filling material |
| CN103864227A (en) * | 2014-03-21 | 2014-06-18 | 中国环境科学研究院 | Treatment device for recycling micro-invasive excavation multi-medium subsurface leachate as water for cultivation |
| CN103951064A (en) * | 2014-04-16 | 2014-07-30 | 重庆大学 | Ecological filter used for micro-polluted water treatment |
| CN104150706A (en) * | 2014-07-25 | 2014-11-19 | 席北斗 | Device and method for purifying sewage by utilizing slow infiltration system and unpowered rotating biological contactor |
| CN104692531A (en) * | 2013-12-04 | 2015-06-10 | 北京德瑞科森环保科技有限公司 | Underground water heavy metal pollution remediation device |
| CN104801535A (en) * | 2015-05-13 | 2015-07-29 | 天津城建大学 | Enriching and transformation ditch device of protection forest for removal of farmland heavy metals |
| CN105236585A (en) * | 2015-11-11 | 2016-01-13 | 辽宁石油化工大学 | Tide current constructed wetland substrate packing for deep treatment of rural domestic sewage |
| CN105537265A (en) * | 2016-03-11 | 2016-05-04 | 安徽工程大学 | Heavy metal contaminated soil remediation method and system with water hyacinths |
| CN106365389A (en) * | 2016-11-11 | 2017-02-01 | 广州资源环保科技股份有限公司 | Artificial wetland purifying treatment system applicable to urban black and odorous river courses |
| CN106396298A (en) * | 2016-11-30 | 2017-02-15 | 广州蓝碧环境科学工程顾问有限公司 | Purification device for treating poultry farming wastewater through solar bio-floating bed |
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| CN107200441A (en) * | 2017-07-11 | 2017-09-26 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of compound sewage processing and the method for heavy metal soil remediation |
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| CN103708672A (en) * | 2012-10-09 | 2014-04-09 | 中国科学院城市环境研究所 | An efficient purification method of heavy-metal waste water by combining plants and enrichment by a composite filling material |
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| CN103464454A (en) * | 2013-10-11 | 2013-12-25 | 南开大学 | Method for renovating soil suffered from multiple pollution of cadmium, lead and arsenic with ligustrum malongense |
| CN104692531A (en) * | 2013-12-04 | 2015-06-10 | 北京德瑞科森环保科技有限公司 | Underground water heavy metal pollution remediation device |
| CN103864227A (en) * | 2014-03-21 | 2014-06-18 | 中国环境科学研究院 | Treatment device for recycling micro-invasive excavation multi-medium subsurface leachate as water for cultivation |
| CN103864227B (en) * | 2014-03-21 | 2015-07-22 | 中国环境科学研究院 | Treatment device for recycling micro-invasive excavation multi-medium subsurface leachate as water for cultivation |
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| CN104150706B (en) * | 2014-07-25 | 2016-01-20 | 席北斗 | Slowly system unpowered biological rotating disk water purifying device and method is oozed |
| CN104150706A (en) * | 2014-07-25 | 2014-11-19 | 席北斗 | Device and method for purifying sewage by utilizing slow infiltration system and unpowered rotating biological contactor |
| CN104801535B (en) * | 2015-05-13 | 2017-08-08 | 天津城建大学 | A kind of shelter-forest enrichment conversion ditch device for being used to remove heavy metals in farmland |
| CN104801535A (en) * | 2015-05-13 | 2015-07-29 | 天津城建大学 | Enriching and transformation ditch device of protection forest for removal of farmland heavy metals |
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| CN105537265B (en) * | 2016-03-11 | 2018-08-24 | 安徽工程大学 | A kind of the water hyacinth restorative procedure and repair system of heavy-metal contaminated soil |
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| CN106513429A (en) * | 2016-12-31 | 2017-03-22 | 许伟琦 | Integrated ecological remediation system combining soil remediation and sewage treatment, remediation conditioning agent and treating agent |
| CN106946354A (en) * | 2017-05-17 | 2017-07-14 | 中机国际环保科技有限公司 | A kind of cesspool sewage end-o f-pipe -control device |
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| CN107200441A (en) * | 2017-07-11 | 2017-09-26 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of compound sewage processing and the method for heavy metal soil remediation |
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| CN108975625A (en) * | 2018-08-18 | 2018-12-11 | 江苏澳洋生态园林股份有限公司 | A kind of artificial wet land system with recovery of nitrogen and phosphorus effect |
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| CN113307371A (en) * | 2020-11-18 | 2021-08-27 | 西南大学 | Construction method of constructed wetland system |
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