CN106001077A - Device for restoring soil polluted by heavy metal chromium - Google Patents
Device for restoring soil polluted by heavy metal chromium Download PDFInfo
- Publication number
- CN106001077A CN106001077A CN201610602496.9A CN201610602496A CN106001077A CN 106001077 A CN106001077 A CN 106001077A CN 201610602496 A CN201610602496 A CN 201610602496A CN 106001077 A CN106001077 A CN 106001077A
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- CN
- China
- Prior art keywords
- immobilized microorganism
- water
- layer
- chromium
- microorganism ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a device for restoring soil polluted by heavy metal chromium. The device for restoring the soil polluted by the heavy metal chromium comprises a chromium pollution treatment well, immobilized microbiologic balls, a magnetic field generating device, water pumps and water spray pipes, wherein the chromium pollution treatment well is provided with a sandstone layer, an artificial substrate layer, an immobilized microbiologic layer and a water-permeable layer in sequence from exterior to interior; the artificial substrate layer consists of silica gel and limestone; the magnetic field generating device comprises a spiral coil, a transformer and a power supply; the spiral coil is enwound on the periphery of the immobilized microbiologic layer; the spiral coil is electrically connected with the transformer; the transformer is electrically connected with the power supply; the water-permeable layer consists of membrane components; a water well is arranged in the middle of the water-permeable layer; water pumping pipes are connected into the water well; the water pumping pipes are connected with the water pumps; the water pumps are connected with the water spray pipes; the water spray pipes are uniformly distributed on the surface of the soil. By using the device for restoring the soil polluted by the heavy metal chromium, not only can the chromium in the soil be removed, but also the recycling of water is realized.
Description
Technical field
The present invention relates to soil improvement field, particularly a kind of heavy metal chromium pollution soil restoring device.
Background technology
Soil Cr is polluted essentially from industrial wastewater waste residues such as chrome ore, metal smelt, plating, process hides, pigment and chemical industry.Cr VI toxicity is high, animal migration is strong, thus easily endangers environment, threatens human health.Chromic toxicity is low and precipitates the most completely in weakly alkaline solution neutral, thus the harm to environment and the mankind is less.The growth of crops is also had a great impact by chromium.According to test, containing chromium at 1ppm in water
Time can stimulate plant growth, plant growth can be made when 1～10ppm to slow down, stop growing to the most almost making crop during 100ppm.In recent years, the ground such as Hunan, Henan, Fujian all there occurs serious pollution of chromium event, causes heavy economic losses and personal injury, causes the great attention of central and local governments leader, and the improvement of native land earth is significant.
At present, obtain immobilized microorganism technology paying close attention to widely both at home and abroad, such as Patent No.: 200910056687.X patent specification describes a kind of immobilized microorganism preparation method, immobilized microorganism is mainly characterized by Microorganism incubation and becomes a kind of solid-state, it is placed in sewage and there is fixing shape, and microorganism not loss of activity, there is good wastewater treatment efficiency.
Summary of the invention
It is an object of the invention to provide a kind of heavy metal chromium pollution soil restoring device, process the pollution of chromium in soil.
nullFor achieving the above object，The present invention provides following technical scheme: a kind of heavy metal chromium pollution soil restoring device，Well is processed including pollution of chromium、Immobilized microorganism ball、Field generator for magnetic、Water pump and sparge pipe，Described pollution of chromium processes well and is followed successively by sand stone layer from outside to inside、Artificial substratum layer、Immobilized microorganism layer and pervious bed，Described artificial substratum layer is made up of with limestone silica gel，Throw in described immobilized microorganism layer and have immobilized microorganism ball，Described immobilized microorganism ball is made up with metallic nickel of activated sludge，Activated sludge is sufficiently mixed by chemical agent according to the ratio of 5:2 with metallic nickel，Again activated sludge is made spherical with the mixture of metallic nickel by mould，Then air-dry，Spherical mixture after air-drying again is placed among magnetic field，Filter out the internal spherical mixture containing metallic nickel and i.e. obtain described immobilized microorganism ball，Aspergillus niger is mainly contained in described activated sludge,Described pervious bed is to be made up of membrane module，Well it is provided with in the middle of pervious bed，Connect in described well and have drinking-water pipe，Described drinking-water pipe connects water pump，Described water pump connects sparge pipe，Described sparge pipe is evenly distributed on soil surface；
Described field generator for magnetic includes spiral winding, transformator and power supply, described spiral winding is wrapped in the periphery of immobilized microorganism layer, spiral winding and transformator Electricity Federation, transformator and power supply Electricity Federation, described power supply controls current intensity and the direction of spiral winding by transformator, thus control the size and Orientation in magnetic field, a magnetic field is defined in immobilized microorganism layer, the action of a magnetic field, in immobilized microorganism layer, makes immobilized microorganism ball suspend and be sufficiently mixed with sewage in immobilized microorganism layer.
Preferably, it is provided with mud recovery tube in described immobilized microorganism layer, described mud recovery tube is used for collecting immobilized microorganism ball and suspended sludge, then the immobilized microorganism ball of recovery is decomposed and obtain metallic nickel, again suspended sludge and the metallic nickel of recovery are made immobilized microorganism ball the most again by chemical reagent, then periodically the immobilized microorganism ball made is put in immobilized microorganism layer, described mud recovery tube passes through pump by immobilized microorganism ball sucking-off, it is achieved the recycling of immobilized microorganism ball.
Preferably, described pollution of chromium processes and is provided around a plurality of braiding channel under well, and the current direction pollution of chromium of described braiding channel processes well, and described braiding channel is to be surrounded by water-permeable brick.
Preferably, a diameter of 12-16mm of described immobilized microorganism ball.
nullCompared with prior art，The invention has the beneficial effects as follows: pollution of chromium processes well and is followed successively by sand stone layer from outside to inside、Artificial substratum layer、Immobilized microorganism layer and pervious bed，Described artificial substratum layer is made up of with limestone silica gel，Throw in immobilized microorganism layer and have immobilized microorganism ball，Described immobilized microorganism ball is made up with metallic nickel of activated sludge，Activated sludge is sufficiently mixed by chemical agent according to the ratio of 5:2 with metallic nickel，Again activated sludge is made spherical with the mixture of metallic nickel by mould，Then air-dry，Spherical mixture after air-drying again is placed among magnetic field，Filter out the internal spherical mixture containing metallic nickel and i.e. obtain described immobilized microorganism ball，Aspergillus niger is mainly contained in described activated sludge,Metallic nickel has bigger proportion，Therefore immobilized microorganism ball has preferable settling property，And aspergillus niger has good adsorption treatment ability to chromium in activated sludge，Pervious bed is made up of membrane module，Silica gel can adsorb the chromium in water，Reduce the content of chromium in water，And activated sludge can process chromium in water further，And membrane module can adsorb the chromium ion in water again，So chromium is through adsorption treatment layer by layer，In water, the content of chromium arrives discharge standard；Process the water after well purifies by pollution of chromium and spray in soil by water pump and sparge pipe, the chromium in soil is brought into braiding channel by water, water in braiding channel processes well through pollution of chromium again and purifies, immobilized microorganism ball and membrane module periodic replacement, so can not only remove the chromium in soil, and achieve the recycling of water.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is immobilized microorganism layer and field generator for magnetic structure chart.
In figure: 1, sand stone layer, 2, artificial substratum layer, 3, immobilized microorganism layer, 4, pervious bed, 5, well, 6, immobilized microorganism ball, 7, power supply, 8, transformator, 9, field generator for magnetic, 10, spiral winding, 11, drinking-water pipe, 12, water pump, 13, sparge pipe, 14, braiding channel, 15, pollution of chromium process well, 16, mud recovery tube.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullEmbodiment，Refer to figure，The present invention provides a kind of technical scheme: a kind of heavy metal chromium pollution soil restoring device，Well 15 is processed including pollution of chromium、Immobilized microorganism ball 6、Field generator for magnetic 9、Water pump 12 and sparge pipe 13，Pollution of chromium processes well 15 and is followed successively by sand stone layer 1 from outside to inside、Artificial substratum layer 2、Immobilized microorganism layer 3 and pervious bed 4，Artificial substratum layer 2 is made up of with limestone silica gel，Throw in immobilized microorganism layer 3 and have immobilized microorganism ball 6，Immobilized microorganism ball 6 is by activated sludge、Activated carbon is made with metallic nickel，Activated sludge is sufficiently mixed by chemical agent according to the ratio of 5:2 with metallic nickel，Again activated sludge is made spherical with the mixture of metallic nickel by mould，Then air-dry，Spherical mixture after air-drying again is placed among magnetic field，Filter out the internal spherical mixture containing metallic nickel and i.e. obtain immobilized microorganism ball 6，Metallic nickel has bigger proportion，Therefore immobilized microorganism ball 6 has preferable settling property，Aspergillus niger in activated sludge has good adsorption treatment ability to chromium，The chromium in water can be adsorbed，Pervious bed 4 is made up of membrane module，It is provided with well 5 in the middle of pervious bed 4，Connect in well 5 and have drinking-water pipe 11，Drinking-water pipe 11 connects water pump 12，Water pump 12 connects sparge pipe 13，Sparge pipe 13 is evenly distributed on soil surface.
Field generator for magnetic 9 includes spiral winding 10, transformator 8 and power supply 7, spiral winding 10 is wrapped in the periphery of immobilized microorganism layer 3, spiral winding 10 and transformator 8 Electricity Federation, transformator 8 and power supply 7 Electricity Federation, power supply 7 controls current intensity and the direction of spiral winding 10 by transformator 8, thus control the size and Orientation in magnetic field, a magnetic field is defined in immobilized microorganism layer, the action of a magnetic field is in immobilized microorganism layer 3, make immobilized microorganism ball 6 suspend and be sufficiently mixed with sewage in immobilized microorganism layer 3
Mud recovery tube 16 it is provided with in immobilized microorganism layer 3, mud recovery tube 16 is used for collecting immobilized microorganism ball 6 and suspended sludge, then the immobilized microorganism ball 6 of recovery is decomposed and obtain metallic nickel, again suspended sludge and the metallic nickel of recovery are made immobilized microorganism ball 6 the most again by chemical reagent, then periodically the immobilized microorganism ball 6 made is put in immobilized microorganism layer 3, mud recovery tube 16 passes through pump by immobilized microorganism ball 6 sucking-off, it is achieved the recycling of immobilized microorganism ball 6.
Pollution of chromium processes and is provided around a plurality of braiding channel 14 under well 15, and the current direction pollution of chromium of braiding channel 14 processes well 15, and braiding channel 14 is to be surrounded by water-permeable brick.Process the water after well 15 purifies by pollution of chromium and spray in soil by water pump 12 and sparge pipe 13, bring the chromium in soil into braiding channel 14, water in braiding channel 14 is when processing well 15 through pollution of chromium, silica gel in artificial substratum layer 2 can adsorb the chromium in water, reduce the content of chromium in water, and the aspergillus niger in activated sludge can process chromium in water further, and membrane module can adsorb the chromium ion in water again, so chromium is through adsorption treatment layer by layer, and in water, the content of chromium arrives discharge standard；Process the water after well 15 purifies by pollution of chromium and spray in soil by water pump and sparge pipe, the chromium in soil is brought into braiding channel 14 by water, water in braiding channel 14 processes well 15 through pollution of chromium again and purifies, immobilized microorganism ball and membrane module periodic replacement, so can not only remove the chromium in soil, and achieve the recycling of water.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; conceive in addition equivalent or change according to technical scheme and improvement thereof, all should contain within the scope of the present invention.
Claims (4)
- null1. a heavy metal chromium pollution soil restoring device，It is characterized in that: include that pollution of chromium processes well、Immobilized microorganism ball、Field generator for magnetic、Water pump and sparge pipe，Described pollution of chromium processes well and is followed successively by sand stone layer from outside to inside、Artificial substratum layer、Immobilized microorganism layer and pervious bed，Described artificial substratum layer is made up of with limestone silica gel，Throw in described immobilized microorganism layer and have immobilized microorganism ball，Described immobilized microorganism ball is made up with metallic nickel of activated sludge，Activated sludge is sufficiently mixed by chemical agent according to the ratio of 5:2 with metallic nickel，Again activated sludge is made spherical with the mixture of metallic nickel by mould，Then air-dry，Spherical mixture after air-drying again is placed among magnetic field，Filter out the internal spherical mixture containing metallic nickel and i.e. obtain described immobilized microorganism ball，Aspergillus niger is mainly contained in described activated sludge,Described pervious bed is to be made up of membrane module，Well it is provided with in the middle of pervious bed，Connect in described well and have drinking-water pipe，Described drinking-water pipe connects water pump，Described water pump connects sparge pipe，Described sparge pipe is evenly distributed on soil surface；Described field generator for magnetic includes spiral winding, transformator and power supply, described spiral winding is wrapped in the periphery of immobilized microorganism layer, spiral winding and transformator Electricity Federation, transformator and power supply Electricity Federation, described power supply controls current intensity and the direction of spiral winding by transformator, thus control the size and Orientation in magnetic field, a magnetic field is defined in immobilized microorganism layer, the action of a magnetic field, in immobilized microorganism layer, makes immobilized microorganism ball suspend and be sufficiently mixed with sewage in immobilized microorganism layer.
- A kind of heavy metal chromium pollution soil restoring device the most according to claim 1, it is characterized in that: in described immobilized microorganism layer, be provided with mud recovery tube, described mud recovery tube is used for collecting immobilized microorganism ball and suspended sludge, then the immobilized microorganism ball of recovery is decomposed and obtain metallic nickel, again suspended sludge and the metallic nickel of recovery are made immobilized microorganism ball the most again by chemical reagent, then periodically the immobilized microorganism ball made is put in immobilized microorganism layer, described mud recovery tube passes through pump by immobilized microorganism ball sucking-off, realize the recycling of immobilized microorganism ball.
- A kind of heavy metal chromium pollution soil restoring device the most according to claim 1, is characterized in that: described pollution of chromium processes and is provided around a plurality of braiding channel under well, and the current direction pollution of chromium of described braiding channel processes well, and described braiding channel is to be surrounded by water-permeable brick.
- A kind of heavy metal chromium pollution soil restoring device the most according to claim 1, is characterized in that: a diameter of 12-16mm of described immobilized microorganism ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602496.9A CN106001077A (en) | 2016-07-28 | 2016-07-28 | Device for restoring soil polluted by heavy metal chromium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602496.9A CN106001077A (en) | 2016-07-28 | 2016-07-28 | Device for restoring soil polluted by heavy metal chromium |
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| CN106001077A true CN106001077A (en) | 2016-10-12 |
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| CN201610602496.9A Pending CN106001077A (en) | 2016-07-28 | 2016-07-28 | Device for restoring soil polluted by heavy metal chromium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112718832A (en) * | 2020-12-17 | 2021-04-30 | 徐州云乐环保设备科技有限公司 | Self-dispersion remediation method for heavy metal contaminated soil |
| CN115466013A (en) * | 2022-09-24 | 2022-12-13 | 井冈山大学 | Device for removing and recovering heavy metals in wastewater |
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| CN101138767A (en) * | 2007-09-29 | 2008-03-12 | 华中科技大学 | Method for renovating soil polluted by heavy metal |
| CN102225806A (en) * | 2011-05-24 | 2011-10-26 | 合肥工业大学 | Magnetic biological carrier and preparation method thereof |
| CN102923866A (en) * | 2012-11-22 | 2013-02-13 | 南京大学 | Device for implementing strengthened treatment for sewage through changing magnetic field and sewage treatment method |
| CN103008334A (en) * | 2012-11-26 | 2013-04-03 | 中国地质大学（武汉） | In-situ rainwater leaching repair system for contaminated soil |
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| CN104098231A (en) * | 2014-08-01 | 2014-10-15 | 谢众 | Immobilized microorganism constructed wetland system |
| CN105130087A (en) * | 2015-09-28 | 2015-12-09 | 上海一途膜分离技术有限公司 | Nano quantum dot adsorption and film separating system for removing heavy metal in water |
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2016
- 2016-07-28 CN CN201610602496.9A patent/CN106001077A/en active Pending
Patent Citations (8)
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| CN101138767A (en) * | 2007-09-29 | 2008-03-12 | 华中科技大学 | Method for renovating soil polluted by heavy metal |
| CN102225806A (en) * | 2011-05-24 | 2011-10-26 | 合肥工业大学 | Magnetic biological carrier and preparation method thereof |
| CN102923866A (en) * | 2012-11-22 | 2013-02-13 | 南京大学 | Device for implementing strengthened treatment for sewage through changing magnetic field and sewage treatment method |
| CN103008334A (en) * | 2012-11-26 | 2013-04-03 | 中国地质大学（武汉） | In-situ rainwater leaching repair system for contaminated soil |
| CN104098179A (en) * | 2014-08-01 | 2014-10-15 | 方帅 | Assembled type sewage treatment device for aerobic and anaerobic immobilized microorganisms |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112718832A (en) * | 2020-12-17 | 2021-04-30 | 徐州云乐环保设备科技有限公司 | Self-dispersion remediation method for heavy metal contaminated soil |
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| CN115466013A (en) * | 2022-09-24 | 2022-12-13 | 井冈山大学 | Device for removing and recovering heavy metals in wastewater |
| CN115466013B (en) * | 2022-09-24 | 2023-09-19 | 井冈山大学 | Get rid of and retrieve device of heavy metal in waste water |
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Application publication date: 20161012 |
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