CN2623365Y - Biologic repair facility for polluted soil - Google Patents
Biologic repair facility for polluted soil Download PDFInfo
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- CN2623365Y CN2623365Y CN 03214009 CN03214009U CN2623365Y CN 2623365 Y CN2623365 Y CN 2623365Y CN 03214009 CN03214009 CN 03214009 CN 03214009 U CN03214009 U CN 03214009U CN 2623365 Y CN2623365 Y CN 2623365Y
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- pool
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- contaminated soil
- polluted
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Abstract
The utility model relates to a repair technology for polluted soil, in particular to a biologic repair facility for polluted soil. The utility model is in shelf structure, and comprises a built-in polluted deposit pool filled with polluted soil, an impervious layer is arranged below the polluted deposit pool, and a tap water hose mounting spout is passed through the upper part of the polluted deposit pool. The polluted deposit pool is further provided with an aeration pipe, which has a plurality of vent holes and is communicated with the fan. A plastic cloth is laid on the ceiling. Adopted the technology mentioned in the utility model, the environmental condition can be easily controlled, and has the advantages of free from contamination, fast decontamination speed and high efficiency; the facility adopted in the utility model can easily improve the process condition of the organic matter polluted soil to satisfy survive demand and breed demand of microorganism, which is suitable to be applied in macro engineering.
Description
Technical field
The utility model relates to the contaminated soil recovery technique, specifically a kind of contaminated soil biological restoration facility.
Background technology
The biological restoration organic material contaminated soil comprises oil-polluted soils, mainly contain in-situ treatment and dystopy at present and handle two classes, the biology in situ processing method is directly to adopt bioremediation technology in contaminated area, this technology is fit to the soil of large tracts of land slight pollution, expense is low, but because environmental condition is wayward, so long processing period.The heterotopic biological recovery technique is polluted soil to be transported to specific project site carry out biological restoration, this method can guarantee biodegradable more satisfactory condition, thereby good to the contaminated soil treatment effect, can prevent that also pollutant from shifting, and is regarded as a treatment technology with broad prospect of application.The sort of method does not all have mature technique at present, and is international and domestic all in discussion, and is confined to laboratory scale more, also do not have ripe practical engineering and technology.Document 1: (Dinke is strong, Sun Tiehang, Li Peijun, Zhang Hairong to the Study on degradation of oil-polluted soils for fungi, " (JOURNAL OF MICROBIOLOGY ", 1999,19 (4): 25-26, control temperature (under 28 ℃ of ideal conditions) when 34) disclosing a kind of processing Liaohe Oil Field contaminated soil with incubator in the laboratory, to the recovery technique of the contaminated soil of oil-containing 65g/kg, the clearance of crude oil total amount is 61%～66% after 50 days; This work only is breadboard lab scale, replaces treatment facility with the beaker of 100ml, and the 10g greasy dirt is dyed the soil research that experimentizes.Document 2: reported open-air medium scale experimental study.Biotechnology is handled east, Ji oil field oil-containing soil (Wang Hongjun, Wu Rengang, Wang Jialin, " Research of Environmental Sciences ", 2000,13 (5): 20-23) disclose a kind of biologic treating technique and disposal field.It is thick to spread native 4cm on the ground, surrounds 1m
2The experiment field of size adds crude oil, treats that it oozes down naturally, turns over about the 20cm of upper strata, makes oil content cloth even.Adopt Jia Shui, add bacterium, add slag, Ensure Liquid, the measure of turning over for 2 times/wait weekly, handled 183 days, the former oil concentration of soil drops to 16g/kg from 85g/kg, degradation rate is 81.6%; Wherein the bacterium that is added is a bacterium, 2 pseudomonas belong to, 1 strain xanthomonas, and wherein nutrients is urea, potassium dihydrogen phosphate, but owing to do not have suitable treatment facility to influence effective control of experiment condition, and cause easily environment and phreatic secondary pollution.In addition, experiment condition is single, is not easy to control again.
The utility model content
The purpose of this utility model is to provide a kind of contaminated soil biological restoration facility, and its environmental condition is convenient to control, and is pollution-free, remove that pollutant speed is fast, efficient is high; Can satisfy existence, the breeding needs of microorganism, be suitable for the application of project scale.
To achieve these goals, the technical solution of the utility model is as follows:
For constituting, have the canopy shape structure of water-resistant performance by ceiling and canopy wall, in establish rotten pool, be the contaminated soil windrow on it, the infiltration layer of below rotten pool, setting up defences, shower nozzle is installed by running water pipe in the rotten pool top, wherein is provided with the breather pipe that is covered with passage on the wall; Lay Polypropylence Sheet on the ceiling, breather pipe links to each other with air blast by gas pipeline;
On breather pipe in each rotten pool and the gas pipeline between the air blast gas control valve is installed all, a total gas valve is installed at the air blast place; Can add gas flowmeter between breather pipe in each rotten pool and the gas control valve; Between air blast and the total gas valve Pressure gauge is arranged; The part of the Polypropylence Sheet of the above laying of ceiling is the movable structure that can roll at any time; Described breather pipe available nylon kachoji before test encases it; Described ceiling and canopy wall adopt transparent plastic material; Described rotten pool is that brick mixes material, and impervious barrier adopts cement material; The quantity of described rotten pool can be 2～10.
Compared with prior art, the utility model has more following advantage:
1. can be applied to medium-scale test.The utility model contaminated soil restoration facilities are simple in structure, applicable performance is strong, and the condition that can control environment makes the realization of this technical applicationization, industrialization become possibility.
2. environmental condition is multiple and controlled.The utility model can provide the selection test of microorganism fungus kind, can select a plurality of (as condition KB, CK, P) rotten condition of different heaps to carry out the reparation of contaminated soil simultaneously.The breather pipe of design band passage is also installed water pipe and shower nozzle in its rotten pool, and the breather pipe of each rotten pool and water pipe design gauge tap respectively.Also can select different pollutant windrows, different throughputs, different moisture, different repairing polluted soils such as pH, with existence and the breeding demand (as: oxygen, moisture, nutrients etc.) that satisfies microorganism.
3. can prevent from surrounding environment and underground water are caused secondary pollution.The infiltration layer owing to set up defences in the rotten pool of the utility model facility bottom has xoncrete structure, can prevent from underground water is polluted, and has the high brick of 12.5cm to mix pool wall around the rotten pool, can prevent that contaminated soil from polluting surrounding environment.
4. can satisfy the living necessities of microorganism.Facility described in the utility model has ceiling, is semi-transparent plastic material, can be rainproof but not shading; Also have waterpipe and shower nozzle in time evenly to keep the skin wet as required.Adopt the utility model can add the nutrition (urea and calcium superphosphate) that microorganism needs, make pending oil-polluted soils increase N, P, Ca etc., can make microorganism obtain more satisfactory existence and breeding environment, thereby strengthen activation of microorganism, make biological restoration possess advantage.
5. it is effective to handle organic material contaminated soil.Adopt the utility model to handle oil-polluted soils, various environmental conditions are convenient to control except that temperature, therefore remove pollutant efficient height, (in＜100g/kg) pollution short time good regulation effect can be arranged to high concentration, with experiment of the utility model is example, in 49 days processing times, soil PetroChina Company Limited. contaminant degradation rate can reach 30.0%.
Description of drawings
Fig. 1 is the utility model contaminated soil restoration facilities structural representations.
Fig. 2 is the used breather pipe structural representation of Fig. 1.
Fig. 3 is an embodiment rotten pool of a utility model distribution map.
The specific embodiment
Below in conjunction with embodiment the utility model is described in further detail.
As shown in Figure 1, the utility model is for to constitute, to have the canopy shape structure of water-resistant performance by ceiling 12 and canopy wall 11, in establish rotten pool 1, it on it contaminated soil windrow 10, the infiltration layer 4 of below rotten pool 1, setting up defences, shower nozzles 2 (can conveniently keep the skin wet, be used at any time spraying water according to the requirement of test to moisture) are installed by running water pipe 3 in the top of 1 meter eminence of rotten pool 1 central authorities, wherein be provided with the breather pipe 5 that is covered with passage 7 on the wall, be set in parallel in rotten pool 1 respectively; Lay Polypropylence Sheet on the ceiling 12, breather pipe 5 links to each other with air blast 14 by gas pipeline 9, on breather pipe 5 in each rotten pool 1 and the gas pipeline 9 between the air blast 14 gas control valve 8 is installed all, and a total gas valve 15 is installed at air blast 14 places;
Can add gas flowmeter 6 between breather pipe 5 in each rotten pool 1 and the gas control valve 8; Between air blast 14 and the total gas valve 15 Pressure gauge 13 is arranged; Described air blast 14 can provide air, is transported in the breather pipe 5 by gas pipeline 9, and Pressure gauge 13 and gas flowmeter 6 are used for the air that needs in the strict control rotten pool 1, and total gas valve 15 is used for controlled pressure table 13; Utilize air blast 14 that air is provided, gas is by total gas valve 15 and Pressure gauge 13 controls, and gas is transported in the breather pipe 5 by gas pipeline 9, and the air that needs in the rotten pool 1 is again by gas flowmeter 6 controls.
The part of the Polypropylence Sheet of ceiling 12 the above laying is movable structures, can roll at any time and put down as required, convenient discharging smell and insulation; Available nylon kachoji encases breather pipe 5 before the test, prevents that earth from entering in the pipeline; Described canopy wall 11 is wooden frameworks, and ceiling 12 and canopy wall 11 are laid transparent plastic; Described rotten pool 1 is used to stack organic polluted soil, and brick mixes material, long 118cm, wide 70cm, high 12.5cm.Be impervious barrier 4 at the bottom of the pond, cement material can effectively prevent to ooze under the pollutant.
Contaminated soil administer with the biological restoration process in a plurality of influence factors are arranged, in order to select more satisfactory treatment conditions, need carry out the regulation and control experiment of influence factor, the utility model is designed to have the structure of a plurality of rotten pools 1 for this reason, the quantity of rotten pool 1 can (present embodiment be 6 for 2～10,2 are used for reference examples 1 condition KB, 2 are used for reference examples 2 condition C K, 2 are used for condition P of the present invention), major function is to change treatment conditions to satisfy the existence of microorganism, conditions such as breeding needs, for example under natural temperature, can change moisture, oxygen, nutrient content can be controlled pH, can also add different microorganism fungus kind etc.
The utility model specific operation process is as follows:
Greasy filth discarded object and oil-polluted soils grind, and add soil moved in to improve the original, make the contaminated soil oil content be: 100 gram/kg＞contaminated soil oil content＞20 gram/kg.Add nutrition according to described preliminary treatment contaminated soil volume ratio, described nutrition is other material that C, N, P and growth of microorganism thereof and breeding need, by adding acquisitions such as greasy filth, urea, calcium superphosphate, this embodiment makes C in the windrow: N: P=100: 10: 1; 2% solid fungicide, 20% water, regulate pH value to 6.8, mix, be deposited in the processing rotten pool, and disperse to stack evenly, (general temperature is more than 15 ℃) carry out the composting processing under natural temperature, (that is: when soil mineral oil in fluid content＜500mg/kg) is transported the original place back or is changed and do other purposes when pollutant levels reach discharge standard.
Described urea and calcium superphosphate are commercially available fertilizer product.Described solid fungicide is specially: white-rot fungi (White rot fungi) 1 strain is that Phanerochaete chrysosporium (Phanerochaete Chrysosporium) obtains by buying.It is cultivated, shakes bottle is cultivated, solid culture gets monoculture through the inclined-plane, the concrete operations step is:
(1) inclined-plane is cultivated: adopt above-mentioned bacterial classification, with the potato culture of conventional method preparation, concrete steps are: peeling potatoes is cut into small pieces, take by weighing 200g, boil 30min, use filtered through gauze then, in supernatant, add 20g sucrose, add 20g agar, add water to 1000ml, pH nature, (1.05kg/cm under 1 atmospheric pressure
2, 121.3 ℃) and sterilization 30min, bacterial classification to be received on the ready inclined-plane, bacterial classification was cultivated 5 days at 28 ℃, treated that sporogenesis is standby;
(2) shaking bottle cultivates: above-mentioned inclined-plane is cultivated bacterial classification and is adopted the potato synthetic medium, and medium pH is a nature, and its concrete steps are: the potato 200g that takes by weighing peeling, add poach 25min, filter, it is 1000ml that supernatant is settled to volume, add sucrose 20g then, potassium dihydrogen phosphate (KH
2PO
4) 1.2g, magnesium sulfate (MgSO
4.7H
2O) 1.6g, the Vb trace installs to described potato synthetic medium branch in the triangular flask of 500ml volume, every bottled amount is 100ml, and the 20min that sterilizes under 1 atmospheric pressure is when being cooled to below 40 ℃, in desinfection chamber, inoculate, promptly insert the cultured thalline in above-mentioned inclined-plane.Lawn on the inclined-plane washed with the 10ml sterilized water make bacteria suspension, every bottle graft 2ml.Place then on the shaking table, regulate 125 rev/mins of shaking table speed, cultivated 5 days for 25 ℃, treat to carry out solid culture after spore is grown well;
(3) solid culture: take by weighing the 2.5kg solid medium, described solid culture based component is rice husk and the sawdust behind the autoclaving, rice husk: the sawdust ratio is 4: 1,3 bottles of Liquid Culture thalline that shake in the bottle are poured in 4 liters of potato synthetic mediums of above-mentioned employing and mixed, mix with rice husk and sawdust solid medium after the sterilization, make moisture content 60%, in 25 ℃ of indoor cultivations, cultivated 5 days, and promptly got solid fungicide.
The basic principle of the utility model contaminated soil bioremediation technology is exactly that to utilize microorganism be harmless inorganic substances (H with organic pollutant degradation in the soil
2O and CO
2) process.Adopt the utility model facility to handle oil-polluted soils, good biodegradation condition can be provided, except that the winter of cold, generally can guarantee the temperature of growth of microorganism breeding; Breather pipe 5 with band passage 7 can guarantee oxygen demand, can satisfy the needs of aerobic microbiological to oxygen.The water pipe of design and shower nozzle 2 can replenish the moisture that needs, and can add nutriments such as C, N, P as required.When pollutant levels during at 20g/kg～100g/kg, the high more degradation speed of pollutant levels is fast more for oil-polluted soils, and effect is obvious more.When greasy filth or soil PetroChina Company Limited. pollutant levels＞100g/kg, adopt the method to handle again after can handling petroleum recovery.
Present embodiment is with the contaminated soil around near ground crude oil the dawn oil recovery factory oil well and the oil well, and petroleum type is a viscous crude, and its density is 0.97g.cm
-3, colloid+bitumen content is 35.7%, cured content 6.2%, and viscosity is 3026.5mPa.s (50 ℃).Soil moved in to improve the original picks up from the uncontaminated soil of this area away from oil well, all belongs to saline meadow soil, arrives test site by truck transport.
The oily soil of big bulk is ground, cross the 5mm sieve.The preparation of preliminary treatment soil is specific as follows:
The KB:80kg greasy dirt dyes soil and adds 20kg soil moved in to improve the original (reference examples 1);
The CK:80kg greasy dirt dyes soil and adds 20kg soil moved in to improve the original adding 1.36kg urea and 0.5kg calcium superphosphate (reference examples 2);
The P:80kg greasy dirt dyes soil and adds 20kg soil moved in to improve the original adding 1.36kg urea and 0.5kg calcium superphosphate, adds 2% solid fungicide (the present invention).More than three kinds of processing all moisture is adjusted to 20%, regulate pH=6.8 with sulfuric acid, then above various materials are mixed, be put in the rotten pool 1, throughput is adjusted to 22.37m
3/ min.
Test through 3 wheat harvesting periods is handled, and the clearance that the utility model is handled in the windrow can reach 60%, and the TPH degradation rate variation of three kinds of different disposal of processing procedure sees Table 1.
The treatment effect of table 1 embodiment 1 windrow (degradation rate %)
Time (my god) KB CK P
0 0 0 0
12 1.5 1.8 4.0
29 1.5 1.8 17.0
49 5.0 5.1 30.0
69 5.0 5.5 35.0
89 5.0 6.0 39.0
109 5.6 6.1 60.0
Claims (6)
1. contaminated soil biological restoration facility, it is characterized in that: for constitute, have the canopy shape structure of water-resistant performance by ceiling (12) He Pengbi (11), in establish rotten pool (1), it on it contaminated soil windrow (10), the infiltration layer (4) of setting up defences in rotten pool (1) below, shower nozzle (2) is installed by running water pipe (3) in rotten pool (1) top, wherein is provided with the breather pipe (5) that is covered with passage (7) on the wall; Ceiling (12) is gone up and is laid Polypropylence Sheet, and breather pipe (5) links to each other with air blast (14) by gas pipeline (9).
2. according to the described contaminated soil biological restoration of claim 1 facility, it is characterized in that: on breather pipe (5) in each rotten pool (1) and the gas pipeline (9) between the air blast (14) gas control valve (8) is installed all, air blast (14) locates to install a total gas valve (15); Can add gas flowmeter (6) between breather pipe (5) in each rotten pool (1) and the gas control valve (8); Between air blast (14) and the total gas valve (15) Pressure gauge (13) is arranged.
3. according to the described contaminated soil biological restoration of claim 1 facility, it is characterized in that: the part of the Polypropylence Sheet of the above laying of ceiling (12) is the movable structure that can roll at any time.
4. according to the described contaminated soil biological restoration of claim 1 facility, it is characterized in that: described breather pipe (5) available nylon kachoji before test encases it.
5. according to the described contaminated soil biological restoration of claim 1 facility, it is characterized in that: described ceiling (12) He Pengbi (11) adopts transparent plastic material; Described rotten pool (1) mixes material for brick, and impervious barrier (4) adopts cement material.
6. according to the described contaminated soil biological restoration of claim 1 facility, it is characterized in that: the quantity of described rotten pool (1) can be 2～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214009 CN2623365Y (en) | 2003-07-11 | 2003-07-11 | Biologic repair facility for polluted soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214009 CN2623365Y (en) | 2003-07-11 | 2003-07-11 | Biologic repair facility for polluted soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2623365Y true CN2623365Y (en) | 2004-07-07 |
Family
ID=34242580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03214009 Expired - Fee Related CN2623365Y (en) | 2003-07-11 | 2003-07-11 | Biologic repair facility for polluted soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2623365Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234392B (en) * | 2008-02-29 | 2010-08-11 | 中国海洋大学 | Device and method for biologically repairing high concentration petroleum pollution soil |
| CN102625734A (en) * | 2009-07-29 | 2012-08-01 | 泰拉热能公司 | Method and system for treating contaminated materials |
| CN103586273A (en) * | 2012-08-14 | 2014-02-19 | 江苏盖亚环境工程有限公司 | Method for treating contaminated soil by utilizing wedge-shape high-strength isolated leaching reaction tank |
-
2003
- 2003-07-11 CN CN 03214009 patent/CN2623365Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234392B (en) * | 2008-02-29 | 2010-08-11 | 中国海洋大学 | Device and method for biologically repairing high concentration petroleum pollution soil |
| CN102625734A (en) * | 2009-07-29 | 2012-08-01 | 泰拉热能公司 | Method and system for treating contaminated materials |
| CN103586273A (en) * | 2012-08-14 | 2014-02-19 | 江苏盖亚环境工程有限公司 | Method for treating contaminated soil by utilizing wedge-shape high-strength isolated leaching reaction tank |
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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: 20040707 Termination date: 20110711 |