CN201567278U - Repair system for repairing ground water polluted by organics - Google Patents
Repair system for repairing ground water polluted by organics Download PDFInfo
- Publication number
- CN201567278U CN201567278U CN2009202106382U CN200920210638U CN201567278U CN 201567278 U CN201567278 U CN 201567278U CN 2009202106382 U CN2009202106382 U CN 2009202106382U CN 200920210638 U CN200920210638 U CN 200920210638U CN 201567278 U CN201567278 U CN 201567278U
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- Prior art keywords
- repair system
- activated carbon
- phreatic
- organic pollutants
- artificial swamp
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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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- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model relates to a repair system for repairing ground water polluted by organics, which comprises an artificial wet land, a sedimentation tank and a biological active carbon reactor. The repair system is built and installed according to the order of the artificial wet land, the sedimentation tank and the biological active carbon reactor. The artificial wet land and the sedimentation tank are connected in series and built together or are connected through a pipeline. The sedimentation tank is connected with the biological active carbon reactor through the pipeline. The utility model has the advantages of relatively simple system design, convenient implementation, wide ground water repairing range, various removable pollutant types and extensive application. When being used for repairing the ground water polluted by organics, the utility model is high-efficiency and economical and does not have secondary pollution.
Description
[technical field]
The utility model relates to the underground water technical field, specifically, is the phreatic repair systems of a kind of Organic pollutants.
[background technology]
Along with the aggravation of mankind's activity, phreatic pollution is serious day by day.In China, to the continuous monitoring in 2～7 years in 118 cities statistics, there is 64% and 33% urban groundwater to suffer severe and slight pollution according to relevant department approximately, wherein the Organic pollutants problem is considerably outstanding.The existing long history of external underground water organic contamination Study on treatment technology and practice has obtained more achievement; And domestic improvement research to the underground water organic contamination mostly is in the laboratory study stage, and urgent need can effectively be administered the engineering practical technique and the method for groundwater pollution.
At present main groundwater pollution is administered technology and restorative procedure mainly contains: physics method, chemical method, biological process.The physics method mainly is meant the extraction facture, is the representative art that underground water is repaired, and is most widely used.Chemical oxidization method also is usually used in underground water reparation petroleum hydrocarbon contaminated and that hydrochloric ether pollutes, but cost is higher.Biological process comprises microbiological deterioration and phytoremediation, and inoculating efficiently in soil, bacterial classification can significantly improve degradation effect; Phytoremediation is exactly absorption, assimilation or a Degradation of utilizing plant direct or indirect, and reparation and purification are subjected to organism Contaminated soil and underground water.Practical studies shows that biological process is handled petroleum hydrocarbon contaminated, polycyclic aromatic hydrocarbons contaminated and the hydrochloric ether pollution can reach higher removal efficient, and the extraction processing is still present predominant methods.
Gac is big with its specific surface area, and it is strong that performance is removed in the absorption of pollutent, has a wide range of applications in the advanced treatment of sewage disposal, middle water reuse and tap water.Biological activated carbon technology (BAC) is development and come on the basis of activated carbon technology, it utilizes gac that organism in the water and dissolved oxygen are had very strong characterization of adsorption, with it as carrier, for germs collect and breeding provide good place, this method has prolonged adsorption saturation time and gac work-ing life of gac, has strengthened the adsorption treatment effect of gac.Studies show that at present biological activated carbon has effect preferably to the underground water improvement of Organic pollutants.
Artificial swamp is to go up one or more plants of plantation in certain matrix (filler), and organism and nitrogen, phosphor contaminant are had stronger degradation capability.Artificial swamp is physics, chemistry and the biological triple coordinative roles of utilizing matrix-microorganism-this complex ecosystem of plant, realizes efficient purification to polluted water by filtration, precipitation, ion-exchange, plant absorbing and microbiological degradation.As a kind of ecological wastewater processing technology, artificial swamp has that working cost is low, maintenance management is simple,, the advantage of can decentralized miniaturization building little to the periphery influence.And artificial swamp only is widely used in domestic sewage treating in developed country and developing country at present, at the rare report of application of underground water reparation.
Because the pollutent scope that independent using artificial wet land and biological activated carbon processing underground water can be repaired is less, can not reach the cleaning target, if use activated carbon treatment then cost is too high for the underground water of high pollution concentration, so the utility model improves prior art and effectively combination at the phreatic situation of Organic pollutants.
[utility model content]
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of Organic pollutants phreatic repair system; It can use the economy of scale as engineering, feasible dystopy is repaired combined method, comprising phytoremediation, and microbiological deterioration, biological activated carbon technology restorative procedures such as (BAC); Main reparation target contaminant is the pollution of organic pollutant, particularly low-concentration organic in the underground water.
The purpose of this utility model is achieved through the following technical solutions:
The phreatic repair system of a kind of Organic pollutants comprises artificial swamp, settling tank and biological activated carbon reactor; According to artificial swamp, the order of settling tank and biological activated carbon reactor is built the installation repair system, and artificial swamp and settling tank polyphone is built jointly or passed through pipe connection; Settling tank and biological activated carbon reactor pipe connection;
Described pipeline is steel pipe or pvc pipe;
Described artificial swamp is the Zigzag type artificial swamp, comprises a body and matrix; The bed body is provided with water-in, and water outlet and water reservoir, water-in are provided with hydraulic pipe and baffle plate; Matrix is divided three layers, and the upper strata is a pedosphere, in, lower floor then is a packing layer;
The bed wall and the bottom of described constructed wetland bed body adopt non-leakage material to make, and the bed wall adopts brick wall, and the inboard is a finishing cement, and the bottom is for mixing clay structure;
Described artificial swamp length is 10～50m, and wide is 5～20m, long-width ratio 10: 1～2: 1; The gallery of wherein turning back has at least more than three, and to guarantee the soil in sewage and the bed body, filler and root system of plant fully contact, and through matrix, plant and action of microorganisms make pollutent fully be degraded and absorb, and each gallery are wide at least more than 1m;
The matrix unit of described artificial swamp is followed successively by pebble bed from bottom to top, layer of sand and pedosphere, and total thickness is 0.5～1m; Pebble bed thickness 20～30cm wherein, sand layer thickness 10～20cm, pedosphere thickness 20～50cm;
The plant of described artificial swamp plantation is adopted willow, willow, and cyperus alternifolius, Rush, cattail, reed, more than one in the Canna generalis Bailey carry out the subregion plantation, willow wherein, willow must have a kind of;
Willow on the described artificial swamp (or willow) is 1m at interval, interspersed therebetween cattail, reed, aquatic or hygrophyte such as Canna generalis Bailey;
Described settling tank adopts rectangular sedimentation tank commonly used in the sewage disposal;
Described biological activated carbon reactor is that biological activated carbon filter also can be simple casing or cylindrical structure;
Loaded particles shaped activated carbon filtrate in the described biological activated carbon reactor both can adopt regular cylindric charcoal also can adopt irregular broken charcoal; Its material can adopt ature of coal, woodenly also can adopt nut-shell or coconut husk etc.; In artificial screening and domestication engineering strain liquid adding biological activated carbon reactor well, feed the polluted underground water that needs to handle again and after submergence charcoal layer circulated 24 hours with pump, promptly finish engineering bacteria fixing on gac.
Compared with prior art, positively effect of the present utility model is:
(1) the utility model is used for reference artificial swamp technology commonly used in the sewage disposal, has made up the repairing organic polluted phreatic repair system of dystopy according to the groundwater pollution particular case, and in conjunction with comparatively advanced biological activated carbon technology to guarantee repairing effect;
(2) System Design of the present utility model is simple relatively, implements comparatively convenient, to the underground water of Organic pollutants have efficiently, the characteristics of economy, non-secondary pollution;
(3) the utility model is repaired the underground water wide ranges, and removable pollutant kind is very extensive, as petroleum hydrocarbon, and polycyclic aromatic hydrocarbons, common groundwater pollutant such as hydrochloric ether, this method also has certain removal effect to heavy metal in addition;
(4) the utility model has more than and is confined to phreatic improvement, also can be applied to the improvement of municipal effluent and sanitary sewage.
[description of drawings]
Fig. 1 underground water ex-situ repair system floor map;
Fig. 2 Zigzag type artificial swamp sectional view;
Label in the accompanying drawing is respectively: 1, water inlet pipe, 2, the Zigzag type artificial swamp, 3, the water outlet water collecting basin, 4, rectangular sedimentation tank, 5, the biological activated carbon reactor, 6, rising pipe, 7, constructed wetland bed wall, 8, constructed wetland bed bottom, 9, pebble bed, 10, layer of sand, 11, pedosphere, 12, willow or willow, 13, aquatic, hygrophyte, 14, water inlet water collecting basin, 15, pipeline or channel, 16, pipe connecting.
[embodiment]
The embodiment of the phreatic repair system of a kind of Organic pollutants of the utility model below is provided.
Embodiment 1
Be described further below in conjunction with accompanying drawing 1 and 2 pairs of systems of the present utility model of accompanying drawing.As shown in Figure 1, the utility model mainly comprises Zigzag type constructed wetland bed 2, rectangular sedimentation tank 4 and biological activated carbon reactor 5; Specific operation process is: built artificial wetland bed body 8 and constructed wetland bed wall 7 on request, loaded filler successively by pebble bed 9, layer of sand 10 and pedosphere 11 on constructed wetland bed body 8, what in the end pebble bed 9 and layer of sand 10 can suitably be loaded on one gallery is thicker.Plantation willow or willow 12 are planted hygrophytes 13 such as suitable cattail, reed therebetween on soil layer.Select suitable dominant bacteria to tame according to the polluted underground water water quality that will repair, inoculate in the soil matrix layer.After treating system stability, extracting Organic pollutants underground water to be processed out enters the Zigzag type artificial swamp 2 from water-in 1, polluted underground water is entered in the soil matrix by the top overflow of water inlet water collecting basin 14, and through matrix, plant and action of microorganisms, pollutent is degraded fully and absorbed.Enter in the horizontal sedimentation tank 4 by pipeline 15 after water outlet water collecting basin 3 is done to stop slightly through polluted underground water that artificial swamp was handled and to precipitate.The polluted underground water of post precipitation is by pipeline 16 or enter biological activated carbon reactor 5 with pump suction and carry out final advanced treatment.Water up to standard after the processing can directly enter water body or be recycled into underground again by rising pipe 6.
Detailed process is:
(1) artificial swamp is prepared: adopt long * wide * height to simulate 3 gallery Zigzag type artificial swamps for 2m * 0.6m * 0.5m synthetic glass casing, wherein pebble bed 10cm, layer of sand 5cm, natural soils layer 20cm.Each gallery is planted 4 in the willow (meaning poplar) of high 0.5m, and this willow is to be transplanted in the soil after bough water planting grows ripe root system, plants Rush between willow; Add certain nutritive medium around plant, plant strain growth is stable after 2～3 days; Soil surface covers the volatilization that layer of plastic film prevents TCE;
The pre-treatment of plant: get the branch 50cm of Salicaceae plant, under the natural condition earth culture to its send out roots, stem, leaf; This branch is put into the nutrient solution of dress ISO8692, put into biochemical incubator, temperature is controlled at 25 ± 1 ℃, at the successive illumination condition is to cultivate 2 days under the fluorescent tube of 40w;
(2) biological activated carbon preparation: long be the gac of filling particle diameter in 0.5mm～2.0mm scope in the glass column of 10cm for the 0.5m diameter, fixedly finish circulating 24 hours microorganisms with pump in the TCE degradation bacteria liquid feeding glass column;
(3) continuously water inlet experiment: with concentration is that the TCE solution of 100mg/L is packed in the elevated tank of sealing, by the flow velocity of 0.5L/min intake the simulation artificial swamp in, reach stable back artificial wetland effluent TCE concentration and be about 22mg/L, after biological activated carbon is handled, reach 8mg/L again; Whole TCE removes efficient and is about 92%, and as seen this system can reach effect preferably to the reparation of lower concentration TCE polluted underground water.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection domain of the present utility model.
Claims (8)
1. the phreatic repair system of Organic pollutants comprises artificial swamp, settling tank and biological activated carbon reactor; It is characterized in that according to artificial swamp, the order of settling tank and biological activated carbon reactor is built the installation repair system, artificial swamp and settling tank polyphone is built jointly or is passed through pipe connection; Settling tank and biological activated carbon reactor pipe connection.
2. the phreatic repair system of a kind of Organic pollutants as claimed in claim 1 is characterized in that, described settling tank adopts rectangular sedimentation tank commonly used in the sewage disposal.
3. the phreatic repair system of a kind of Organic pollutants as claimed in claim 1 is characterized in that, described biological activated carbon reactor is biological activated carbon filter or casing or cylindrical structure.
4. the phreatic repair system of a kind of Organic pollutants as claimed in claim 3 is characterized in that, loaded particles shaped activated carbon filtrate in the described biological activated carbon reactor adopts regular cylindric charcoal or adopts irregular broken charcoal; Its material adopts ature of coal, and is wooden, nut-shell or coconut husk; In artificial screening and domestication engineering strain liquid adding biological activated carbon reactor well, feed the polluted underground water that needs to handle again and after submergence charcoal layer circulated 24 hours with pump, promptly finish engineering bacteria fixing on gac.
5. the phreatic repair system of a kind of Organic pollutants as claimed in claim 1 is characterized in that described artificial swamp is the Zigzag type artificial swamp, comprises a body and matrix; The bed body is provided with water-in, and water outlet and water reservoir, water-in are provided with hydraulic pipe and baffle plate; Matrix is divided three layers, and the upper strata is a pedosphere, in, lower floor then is a packing layer.
6. the phreatic repair system of a kind of Organic pollutants as claimed in claim 1 is characterized in that, the bed wall and the bottom of described constructed wetland bed body adopt non-leakage material to make, and the bed wall adopts brick wall, and the inboard is a finishing cement, and the bottom is for mixing clay structure.
7. the phreatic repair system of a kind of Organic pollutants as claimed in claim 1 is characterized in that described artificial swamp length is 10～50m, and wide is 5～20m, long-width ratio 10: 1～2: 1; The gallery of wherein turning back has at least more than three, and each gallery is wide at least more than 1m.
8. the phreatic repair system of a kind of Organic pollutants as claimed in claim 1 is characterized in that the matrix unit of described artificial swamp is followed successively by pebble bed from bottom to top, layer of sand and pedosphere, and total thickness is 0.5～1m; Pebble bed thickness 20～30cm wherein, sand layer thickness 10～20cm, pedosphere thickness 20～50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202106382U CN201567278U (en) | 2009-10-13 | 2009-10-13 | Repair system for repairing ground water polluted by organics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202106382U CN201567278U (en) | 2009-10-13 | 2009-10-13 | Repair system for repairing ground water polluted by organics |
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| Publication Number | Publication Date |
|---|---|
| CN201567278U true CN201567278U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202106382U Expired - Fee Related CN201567278U (en) | 2009-10-13 | 2009-10-13 | Repair system for repairing ground water polluted by organics |
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| Country | Link |
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| CN (1) | CN201567278U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463253A (en) * | 2011-03-30 | 2012-05-23 | 华东理工大学 | Plant microorganism combination remediation soil and shallow groundwater organic pollutant system |
| CN103693744A (en) * | 2013-12-21 | 2014-04-02 | 浙江大学 | Method for purifying eutrophic water by employing willow partial flooding method and application thereof |
| 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 |
-
2009
- 2009-10-13 CN CN2009202106382U patent/CN201567278U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463253A (en) * | 2011-03-30 | 2012-05-23 | 华东理工大学 | Plant microorganism combination remediation soil and shallow groundwater organic pollutant system |
| CN102463253B (en) * | 2011-03-30 | 2013-08-28 | 华东理工大学 | Plant microorganism combination remediation soil and shallow groundwater organic pollutant system |
| CN103693744A (en) * | 2013-12-21 | 2014-04-02 | 浙江大学 | Method for purifying eutrophic water by employing willow partial flooding method and application thereof |
| CN103693744B (en) * | 2013-12-21 | 2015-08-26 | 浙江大学 | The method of willow part waterflooding method purification eutrophic water body and application |
| 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 |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111013 |