CN203196987U - Anaerobic-aerobiotic compatible biological slurry reactor - Google Patents

Anaerobic-aerobiotic compatible biological slurry reactor Download PDF

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Publication number
CN203196987U
CN203196987U CN 201320158207 CN201320158207U CN203196987U CN 203196987 U CN203196987 U CN 203196987U CN 201320158207 CN201320158207 CN 201320158207 CN 201320158207 U CN201320158207 U CN 201320158207U CN 203196987 U CN203196987 U CN 203196987U
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China
Prior art keywords
tank body
reactor
anaerobic
aerobic
campatible
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Expired - Fee Related
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CN 201320158207
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Chinese (zh)
Inventor
谯华
郝全龙
李恒
周从直
沈东升
张洪宇
毛华军
卢升
史永刚
肖晓
熊开生
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Zhejiang Gongshang University
Logistical Engineering University of PLA
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Zhejiang Gongshang University
Logistical Engineering University of PLA
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Priority to CN 201320158207 priority Critical patent/CN203196987U/en
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Publication of CN203196987U publication Critical patent/CN203196987U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses an anaerobic-aerobiotic compatible biological slurry reactor. The reactor comprises a tank body, wherein a reactor cover is mounted at the upper end of the tank body, a drain port is formed in the bottom of the tank body, a feeding-sampling port, a central speed regulating mixing device, a temperature detector plug port, a DO (Dissolved Oxygen) detector plug port, a pH (Potential of Hydrogen) detector plug port, an air outlet and an aeration inlet are formed in the reactor cover, a mixing blade of the central speed regulating mixing device extends into the tank body, an annular aeration pipe is arranged on the bottom in the tank body, an air inlet pipe extends into the tank body through the aeration inlet to be communicated with the inlet of the annular aeration pipe, and one end of the air inlet pipe outside the tank body is connected with an air compressor. The anaerobic-aerobiotic compatible biological slurry reactor disclosed by the utility model has the advantages that the arrangement is convenient, anaerobic-aerobiotic repair requirements can be met, mass transfer efficiency is high, running condition is easy to control, the operation is easy, the sample is convenient, the treatment efficiency is high and the like.

Description

The biological mud reactor of anaerobic-aerobic Campatible
Technical field
The utility model relates to a kind of contaminated soil treating apparatus, relates to a kind of biological mud reactor specifically.
Background technology
The restorative procedure of contaminated soil is a lot.With regard to the place, can be divided into original position reparation, field repair and dystopy reparation; Consider to be broadly divided into physical method, chemical method and biological method three major types from the principle of repairing.
Contaminated soil physics restorative procedure mainly contains landfill method, ventilation decontamination method, the thermal desorption method excavated, wherein excavate landfill method and have the cost height, really do not remove pollutant, ventilation decontamination method is only applicable to the higher organic pollution of volatility, and the thermal desorption method is not suitable for the reparation of difficult volatile contaminant contaminated soil.The chemical repair method of contaminated soil mainly contains chemical burning, Chemical cleaning, photochemical degradating method, the anti-therapy of chemical grid, though wherein chemistry burns and can remove pollutant effectively, the risk of secondary pollution is also destroyed, existed to the physicochemical property with cost height, soil; Chemical cleaning method can obtain effect preferably, but can cause secondary pollution; The photochemical degradating method mainly is applicable to the degraded of agricultural chemicals, but influence factor is more; The anti-therapy of chemistry grid can original position be adsorbed organic pollution, but has chemical grid problem of aging, needs more high-precision groundwater model.With respect to physics reparation and chemical repair method, the biological restoration of contaminated soil has low, the eco-friendly characteristics of cost, but the bottleneck that uses bioanalysis rehabilitating soil maximum mainly is the resistance to mass tranfer that the biological effectiveness of pollutant is low and repair process exists in the contaminated soil, and therefore many researchers are in method and the approach seeking to improve the biological effectiveness of pollutant and reduce resistance to mass tranfer.
Biological mud reactor is the special reaction device for the treatment of contaminated soil, can build scene or strange land in.Its basic principle uses a certain proportion of water with contaminated soil furnishing mud exactly, is that to utilize microorganism be that harmless inorganic substances are (as CO with harmful organic pollutant degradation in the soil to medium with the liquid phase 2And H 2O), degradation process is strengthened and is finished by the physico chemical factor that changes mud (comprising that pH, temperature, ventilation and nutritive salt add), the method can improve the resistance to mass tranfer of biological effectiveness, reduction pollutant and the biology of pollutant in soil effectively, thereby accelerates the removal efficient of pollutant in soil.Some pollutants need anaerobism, aerobic and anaerobic-aerobic Combined Treatment in the soil simultaneously, need develop the biological mud reactor of relevant anaerobic-aerobic Campatible to satisfy the removal of soil polytype pollutant for this reason.
The patent No. is that 01212159.2 utility model discloses a kind of biological mud reactor that can be used for soil remediation, but its conical tank body is easily piled up soil to be repaired, there is the dead angle in the mixing of mud in the reactor, repairing the on-the-spot also inconvenience of placing, sample tap fixedly being unfavorable on sidewall got the different depth of soil sample, and do not consider seal water system, has certain potential safety hazard.The patent No. is that 200920279018.4 utility model discloses a kind of spiral flow mud bioreactor, though be provided with temperature heating and control system and spiral flow propeller, can guarantee temperature and the mass-transfer efficiency of reacting required, but same the existence mixed shortcoming inhomogeneous, that depth selection is limited, can there be the dead band in the aeration board below.The patent No. is that 200810110575.3 patent of invention discloses a kind of dystopy and handles the swirl slurry elution of reactive device of contaminated soil and the cyclodextrin elution system of composition thereof, mainly focus on eddy flow mass transfer and cyclodextrin wash-out, do not consider anaerobism, aerobic condition requirement.
It is many that pollutant in soil relates to class types, and single aerobic, anaerobic organism mud reactor unlikely can satisfy the reparation needs, need develop the biological mud reactor of relevant anaerobic-aerobic Campatible for this reason.
The utility model content
In order to solve the problems of the technologies described above, the utility model biological mud reactor of anaerobic-aerobic Campatible easily that provides a kind of and be easy to realize anaerobic-aerobic reparation requirement, takes a sample.
To achieve these goals, the technical solution of the utility model is as follows: the biological mud reactor of anaerobic-aerobic Campatible, comprise tank body (1), reactor cap (2) is equipped with in described tank body (1) upper end, the bottom of described tank body (1) is provided with outlet (12), described reactor cap (2) is provided with sample introduction sample tap, center speed governing agitating device (7), temperature, DO and pH detector and inserts mouthful (8), gas outlet (9), aeration entrance (11-b), and the paddle of wherein said center speed governing agitating device (7) stretches in the tank body (1); Bottom in the described tank body (1) is provided with annular aeration tube (11-a), air inlet pipe (15) is communicated with the import of annular aeration tube (11-a) in aeration entrance (11-b) stretches into tank body (1), and described air inlet pipe (15) is positioned at the outer end of tank body (1) and is connected with air compressor machine (4).
Adopt technique scheme, when needing anaerobism to repair, close air compressor machine and aeration entrance and sealing, when needing aerobic reparations, open air compressor machine and aeration entrance, be easy to realize the replacing of anaerobic-aerobic, service condition is convenient to control.Sampling is convenient.
In technique scheme, described annular aeration tube (11-a) lower surface is provided with pore, and the pore direction down, and is small and dense.
In technique scheme, for anaerobic environment and air pressure in the maintenance tank body need, avoid air to enter, simultaneously for the purpose of safety, described gas outlet (9) are connected with water seal (14) by wireway (13).
In technique scheme, the bottom of described tank body (1) is provided with two speed governing agitators (10), and these two speed governing agitators (10) lay respectively at the and arranged on left and right sides of tank body (1).Adjust corresponding power according to mud solid content and soil property, select a plurality of agitators, to reach the purpose that even stirring, mud mix up and down.
In technique scheme: described sample introduction sample tap is equipped with probe tube (6), and sampling pump head (5) is housed on the described probe tube (6).This sampler is the packaged type sampler, and its probe tube can add the probe tube of different length according to the depth selection difference, and takes a sample with convenient according to the concrete condition installation different capacity of rehabilitating soil, the sampling pump head of caliber;
In technique scheme, described tank body (1) is cylinder.Convenient like this placement at the scene.
In technique scheme: for guaranteeing the air-tightness of tank body, between described tank body (1) and the reactor cap (2) sealing ring (3) is housed.
Beneficial effect: the utlity model has place convenient, be easy to realize that anaerobism and aerobic reparation requirement, mass-transfer efficiency height, service condition are easy to control and operation, convenient, the treatment effeciency advantages of higher of sampling.
Description of drawings
Fig. 1 is biological mud reactor anaerobism running status schematic diagram of the present utility model;
Fig. 2 is the aerobic running status schematic diagram of biological mud reactor of the present utility model;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is biological mud reactor reactor A of the present utility model-A schematic cross-section.
The meaning of each label representative is among the figure: 1 for the reactor tank body, 2 for reactor cap, 3 for the reactor cap sealing ring, 4 for air compressor machine, 5 for the sampling pump head, 6 for speed governing agitator centered by the probe tube, 7,8 for temperature, DO and pH detector insert mouthful, 9 for the gas outlet, 10 for bottom speed governing agitator, 11-a be that annular aeration tube, 11-b are that aeration entrance, 12 is air inlet pipe for water seal, 15 for wireway, 14 for cleaning soil outlet, 13.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment 1, and shown in Fig. 1-4: the biological mud reactor of anaerobic-aerobic Campatible of the present utility model mainly is made up of parts such as tank body 1, reactor cap 2, center speed governing agitator 7, speed governing agitator 10, probe tube 6, wireway 13, water seal 14, annular aeration tube 11a, air compressor machines 4.
Wherein said tank body 1 is cylinder, the top of tank body 1 is provided with reactor cap 2, be provided with sealing ring 3 between tank body 1 and the reactor cap 2, the bottom of tank body 1 is provided with outlet 12, described reactor cap 2 is provided with sample introduction-sample tap, center speed governing agitating device 7, temperature, DO and pH detector and inserts mouth 8, gas outlet 9, aeration entrance 11-b, and the paddle of wherein said center speed governing agitating device 7 stretches in the tank body 1; The bottom of described tank body 1 also is provided with the and arranged on left and right sides that 10, two speed governing agitators 10 of two speed governing agitators lay respectively at tank body 1.All agitators are electronic speed governing agitator, adjust corresponding power according to mud solid content and soil property.
Bottom in the described tank body 1 is provided with annular aeration tube 11-a, annular aeration tube 11-a lower surface is provided with pore, the pore direction down, small and dense, air inlet pipe 15 stretches in the tank body 1 from aeration entrance 11-b and is communicated with the import of annular aeration tube 11-a, air inlet pipe 15 is positioned at the part of tank body 1 installs along tank body 1 diapire and sidewall, and described air inlet pipe 15 is positioned at tank body 1 an outer end and is connected with air compressor machine 4.
Described gas outlet 9 is connected with water seal 14 by wireway 13.
Probe tube 6 is housed on described sample introduction-sample tap, sampling pump head 5 is housed on the described probe tube 6.
During use, add contaminated soil, a certain proportion of water, nutriment, domestication bacterium etc. by charging-sample tap earlier, regulate its pH, according to mud solid content and soil property regulate that center speed governing agitator 7 and bottom speed governing agitator 10 start stirring systems so that in the tank body 1 mud can obtain fully, stir equably, removal requires to start sealing and seal water system or aerating system to make anaerobism, aerobic environment or the requirement of anaerobic-aerobic batch-type treatment conditions according to pollutant in soil again, and probe tube 6 length are regulated in timing, unlatching sampling pump head 5 is taken a sample.
Handle in certain contaminated soil pollutant levels with device of the present utility model and be (1000.24 ± 105.56) mgTNT/kg soil, pollute the soil that concentrates on apart from top layer 20cm.Now adopt biological mud reactor of the present utility model to repair.TNT adopts the HPLC method to measure, every group gather altogether obtain after the 10 duplicate samples analyses average.
Excavate pollution of surface soil, the air-dry 2cm sieve of crossing, weighing 2kg contaminated soil adds in the reactor of paramount 5L, the nutrient solution that contains surfactant by 2: 1 liquid soil than adding, inoculate TNT domestication bacterium, startup center and bottom speed governing agitator make contaminated soil and water form uniform motion mud, and connect water seal and seal other outlets, behind anaerobism operation 4d, with the repairing effect of sampler from different degree of depth sample analysis anaerobism repairing phase TNT, remove water seal, open other outlets and start the aerating system machine and carry out aeration, measure the content of TNT in mud liquid phase and the solid phase behind the 1d.
Measurement result shows, after the reparation of 5d anaerobism in the soil clearance of TNT be 99.95%, the concentration of TNT is lower than standard limited value 17.2mgTNT/kg soil in the soil, the HPLC collection of illustrative plates shows that TNT is converted into other products and comprises amino class arene and polymeric type product.After the aerobic reparation of 4d anaerobism reparation-1d, the HPLC collection of illustrative plates shows that TNT and converted product peak decline highly significant thereof are near its detectability.The cycle that this reactor is repaired the TNT contaminated soil shortens greatly, remediation efficiency improves greatly.

Claims (7)

1. the biological mud reactor of an anaerobic-aerobic Campatible, comprise tank body (1), reactor cap (2) is equipped with in described tank body (1) upper end, the bottom of described tank body (1) is provided with outlet (12), it is characterized in that: described reactor cap (2) is provided with sample introduction-sample tap, center speed governing agitating device (7), temperature, DO and pH detector and inserts mouthful (8), gas outlet (9), aeration entrance (11-b), and the paddle of wherein said center speed governing agitating device (7) stretches in the tank body (1); Bottom in the described tank body (1) is provided with annular aeration tube (11-a), air inlet pipe (15) is communicated with the import of annular aeration tube (11-a) in aeration entrance (11-b) stretches into tank body (1), and described air inlet pipe (15) is positioned at the outer end of tank body (1) and is connected with air compressor machine (4).
2. according to the biological mud reactor of the described anaerobic-aerobic Campatible of claim 1, it is characterized in that: described annular aeration tube (11a) lower surface is provided with pore, and the pore direction down, and is small and dense.
3. according to the biological mud reactor of the described anaerobic-aerobic Campatible of claim 1, it is characterized in that: described gas outlet (9) are connected with water seal (14) by wireway (13).
4. according to the biological mud reactor of the described anaerobic-aerobic Campatible of claim 1, it is characterized in that: the bottom of described tank body (1) is provided with two speed governing agitators (10), and these two speed governing agitators (10) lay respectively at the and arranged on left and right sides of tank body (1).
5. according to the biological mud reactor of each described anaerobic-aerobic Campatible of claim 1-4, it is characterized in that: probe tube (6) is housed on described sample introduction-sample tap, sampling pump head (5) is housed on the described probe tube (6).
6. according to the biological mud reactor of each described anaerobic-aerobic Campatible of claim 1-4, it is characterized in that: described tank body (1) is cylinder.
7. according to the biological mud reactor of each described anaerobic-aerobic Campatible of claim 1-4, it is characterized in that: between described tank body (1) and the reactor cap (2) sealing ring (3) is housed.
CN 201320158207 2013-04-02 2013-04-02 Anaerobic-aerobiotic compatible biological slurry reactor Expired - Fee Related CN203196987U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104307870A (en) * 2014-02-28 2015-01-28 浙江农林大学 Bioslurry repair method for poly brominated diphenyl ethers polluted soil, and special equipment
CN107937250A (en) * 2017-11-20 2018-04-20 浙江省农业科学院 Bioreactor for soil remediation
CN110052493A (en) * 2019-03-26 2019-07-26 中国矿业大学 A kind of the biological mud restorative procedure and corollary equipment of polycyclic aromatic hydrocarbon pollution
CN111014271A (en) * 2020-01-15 2020-04-17 北京建工环境修复股份有限公司 Organic contaminated soil or solid useless preface batch formula thermal desorption processing's prosthetic devices
CN111438177A (en) * 2020-04-13 2020-07-24 中国矿业大学 System for chemical oxidation and microbial remediation cooperate with petroleum hydrocarbon contaminated soil

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104307870A (en) * 2014-02-28 2015-01-28 浙江农林大学 Bioslurry repair method for poly brominated diphenyl ethers polluted soil, and special equipment
CN104307870B (en) * 2014-02-28 2018-02-23 浙江农林大学 The biological mud restorative procedure and special equipment of a kind of PBDE contaminated soil
CN107937250A (en) * 2017-11-20 2018-04-20 浙江省农业科学院 Bioreactor for soil remediation
CN110052493A (en) * 2019-03-26 2019-07-26 中国矿业大学 A kind of the biological mud restorative procedure and corollary equipment of polycyclic aromatic hydrocarbon pollution
CN111014271A (en) * 2020-01-15 2020-04-17 北京建工环境修复股份有限公司 Organic contaminated soil or solid useless preface batch formula thermal desorption processing's prosthetic devices
CN111014271B (en) * 2020-01-15 2021-10-26 北京建工环境修复股份有限公司 Organic contaminated soil or solid useless preface batch formula thermal desorption processing's prosthetic devices
CN111438177A (en) * 2020-04-13 2020-07-24 中国矿业大学 System for chemical oxidation and microbial remediation cooperate with petroleum hydrocarbon contaminated soil
CN111438177B (en) * 2020-04-13 2021-06-25 中国矿业大学 System for chemical oxidation and microbial remediation cooperate with petroleum hydrocarbon contaminated soil

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C17 Cessation of patent right
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Granted publication date: 20130918

Termination date: 20140402