CN102241444B - Blowoff and oxidation combined tower for polluted groundwater - Google Patents
Blowoff and oxidation combined tower for polluted groundwater Download PDFInfo
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- CN102241444B CN102241444B CN201110108409.1A CN201110108409A CN102241444B CN 102241444 B CN102241444 B CN 102241444B CN 201110108409 A CN201110108409 A CN 201110108409A CN 102241444 B CN102241444 B CN 102241444B
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Abstract
The invention relates to a novel blowoff and oxidation combined tower for polluted groundwater. The combined tower has blowoff action on volatile organic matters and oxidation action on involatile organic matters in groundwater, and is approximately divided into a blowoff section and an oxidation section from top to bottom according to the reaction types, and the blowoff section and the oxidation section are connected by a flange structure. The combined tower has the advantages that: the device design is novel, and the functions of a blowoff tower and an oxidation tower are integrated, thus saving investment; after the blowoff section and the oxidation section are integrated, the high pressure of the blowoff section contributes to the sufficient dissolving of ozone in the oxidation section in water, and the escaping ozone can further contact with water; the combined tower has a wide range of treatment objects, is suitable for the treatment of the groundwater polluted by volatile and/or involatile organic matters, and has the advantages of high efficiency, energy conservation and no secondary pollution; and at the same time, aiming at the groundwater with different pollution site types and pollution degrees, the remediation technology requirements of the groundwater with different pollution site types can be realized by flexibly adjusting the tower plate number and process control switch, and the combined tower has a broad application prospect.
Description
[technical field]
The present invention relates to underground water technical field, specifically, is that a kind of Novel underground water pollutes stripping oxide compound tower.
[background technology]
China's groundwater pollution situation is very serious, and wherein Organic pollutants are classes for the most common and refractory reason, becomes gradually the study hotspot of scientific circles.The chlorinated hydrocarbon organism such as zellon (PCE), trieline (TCE), chloroform, are frequently detected in underground water all over the world.The technology of repairing at present this class contaminate environment mainly contains extracts processing, permeability response wall and biological restoration etc. out.Extracting facture out is the ordinary method for the treatment of groundwater organic contamination, is the most general decontamination measure of application at present.Up to a hundred the pollued field districts in the U.S., to underground hydromining get extract out to process account for 75%.Wherein air stripping method is that a kind of comparatively cheap underground water dystopy is extracted purification techniques out, it is reported, the processing costs of air stripping is $ 1.14～7.50/m
3, this makes air stripping technology be applied to rapidly underground water purification in the U.S..
Blow-off method allows pressurized air fully contact with waste water exactly, makes useless gas dissolved water and volatile solute through liquid-gas interface, to gas phase diffusion, thereby reaches the method that removes pollutent.The major equipment of blow-off method---stripping tower.Stripping tower is divided into again two kinds of packing tower and sieve-tray towers.Packing tower is simple in structure, and atmospheric drag is little, but mass-transfer efficiency is not high enough, and comparison in equipment is huge, and filler easily stops up.Sieve-tray tower simple structure, easily manufactured, mass-transfer efficiency is high, and tower body is less than packing tower, and is difficult for stopping up, and is relatively applicable to for processing underground water.
In Organic pollutants underground water, not only containing deliquescent volatile organism, also contain difficult volatile organic compounds, groundwater pollution type very complex, necessary for the processing of difficult volatile organic compounds.Ozone oxidation is unusual one of effective means.Ozone has strong oxidizing property, water body is had to the effects such as sterilization, deodorizing, decolouring.In underground water, except chlorinatedorganic, also contain various color mineral matter.Ozone has the effect of oxygenolysis to the colour developing organism in water body, the ozone of trace just can reach good effect.Colour developing organism is generally many rings organism with unsaturated link(age), can make unsatisfied chemical bond fracture, thereby make clarification of water while processing with ozone.
Any contaminated place groundwater pollution type is not single, in water, contain deliquescent volatile organism and difficult volatile organic compounds, single technique is often difficult to meet the underground water of compound pollution, or single treatment process use is often difficult to the treatment effect that reaches satisfied, this two technique efficient coupling can reach this object, meets the processing demands of different contaminated site types and pollution level underground water.China is in the starting stage of the compound Pollution abatement of underground water and reparation, needs the recovery technique of such compound organic matter polluted underground water badly.
[summary of the invention]
The object of the invention is to technological innovation, the cost of reducing investment outlay, provides a kind of Novel underground water to pollute stripping oxide compound tower; It can remove volatile organic matter comprising stripping tower as the economy of engineering application scale, the feasible combined equipment of showering, and ozonize section is removed the color producing species of difficult volatilization; Main reparation target is volatility and the difficult volatile organic compounds in underground water, comprises the organic pollutant of high density and lower concentration.
The object of the invention is to be achieved through the following technical solutions:
Novel underground water pollutes a stripping oxide compound tower, is stripping device and oxidation unit, and stripping device and oxidation unit are formed by connecting by flange arrangement;
Described stripping device comprises cylinder, multilayer column plate, and opening for feed, inlet mouth, air outlet, pressure tap, pressure release valve, hydraulic pressure difference meter, each tower joint connects into a cylinder by flange;
Described joint flange is synthetic glass;
Described stripping device is the stripping section of four circular sieve plates, comprises each feed inlet and outlet part and column plate part; Cylindrical shell top is provided with fluid inlet and exhaust port; Fluid inlet is provided with hydraulic pipe and feed liquor baffle plate; Exhaust port place is provided with scum dredger; Cylinder body bottom is provided with inlet mouth; Inlet mouth flange connecting tube; In the cylindrical shell of stripping device, there are four sieve plates, sieve aperture is set respectively on every block of plate, seal pot, entrance safety zone, overflow weir, downtake; Tower top, each tower is saved flange and is connected;
Described stripping device adopts cylindrical structure, diameter 350mm, and high 1150mm, makes with synthetic glass, is divided into four tower joints and a tower top, and thief hole is respectively set; Circular escape pipe interface is established at stripping tower top, circular escape pipe interface internal diameter 125mm; Circular escape pipe interface is connected with flange with escape pipe; Stripping tower upper end is provided with circular injection port interface, circular injection port interface internal diameter 50mm, and circular injection port interface is connected with flange with inlet channel; Circular inlet pipe interface, circular inlet pipe interface internal diameter 100mm are established in stripping tower bottom; Circular inlet pipe interface is connected with flange with inlet pipe;
Described stripping device adopts circular sieve plate, sieve plate diameter 330mm, and thickness 8mm, makes with synthetic glass; Sieve plate seal pot width is 70mm, the recessed 20mm of seal pot, and entrance Anding District width is 15mm; Sieve aperture on plate is equilateral triangle, sieve diameter 3mm; Do not set out a mouthful Anding District; Overflow height of weir 30mm;
Described oxidation unit is made with synthetic glass;
Described oxidation unit is the bubbling type oxidation panel with aeration head, comprises built-in filler, aeration head, each feed inlet and outlet part and baffle part; Cylindrical shell top is provided with inlet mouth; Inlet mouth is provided with inlet pipe; The liquid of stripping device enters oxidation unit place and is provided with feed liquor dividing plate with holes; Glaze pearl filler in the middle of cylindrical shell; Granulated glass sphere filler bottom dress aeration head; Cylinder body bottom is provided with water outlet; Water outlet connects outlet conduit with flange;
Described oxidation unit adopts cylindrical structure, diameter 350mm, and high 1000mm, makes with synthetic glass, and thief hole is set at the bottom of tower; Feed liquor dividing plate with holes upper end is vertically provided with 10 posticums, posticum internal diameter 10mm; The high 50mm of granulated glass sphere filler, fills diameter 215mm; The tower bottom of oxidation unit is established circular rising pipe interface, circular rising pipe interface internal diameter 50mm; Circular rising pipe interface is connected with flange with outlet conduit;
The in-built large circular aeration head of tower of described oxidation unit or 4 small-sized aeration head combinations.
Compared with prior art, positively effect of the present invention is:
(1) the present invention uses for reference absorption tower technology conventional in chemical separating, according to groundwater pollution particular case, built the sieve-board type stripping tower of showering Organic pollutants underground water, and in conjunction with comparatively ripe ozonize technology, remove difficult volatile organic compounds and the color producing species, to guarantee treatment effect and effluent quality;
(2) device of the present invention is novel in design, multi-functional, makes volatile organic matter stripping in underground water react and complete in a device with difficult volatilization colored substance, and stripping section adopts adverse current form, and mass transfer force is large;
(3) device flexible operation of the present invention, can change stage number according to processing object type, concentration, when processing different contaminated site, detachably carries, practical and convenient;
(4) System Design of the present invention is relatively simple, implement more for convenience, to the underground water of Organic pollutants have efficiently, the feature of economy, non-secondary pollution;
(5) the present invention repairs underground water wide ranges, and removable pollutant kind is very extensive, as petroleum hydrocarbon, and polycyclic aromatic hydrocarbons, the common groundwater pollutant such as hydrochloric ether;
(6) the present invention has more than the improvement being confined to underground water, also can be applied to the improvement of municipal effluent and sanitary sewage.
[accompanying drawing explanation]
Fig. 1 Novel underground water pollutes stripping oxide compound tower apparatus floor map;
Fig. 2 a Fig. 2 b is respectively stripping section sieve plate and plate hole concrete structure figure;
Fig. 3 control water diaphragm structure figure;
Label in accompanying drawing is respectively: 1, stripping section, 2, conversion zone, 3, liquid-inlet pipe interface, 4, inlet pipe interface, 5, tail gas outlet, 6, rising pipe interface, 7, ozone inlet mouth, 8, sieve plate, 9, aeration head, 10, granulated glass sphere packing layer, 11, control water dividing plate, 12, shell flange.
[embodiment]
The embodiment of groundwater pollution stripping oxide compound tower of the present invention is below provided.
Refer to accompanying drawing 1,2a, 2b and 3, a kind of Novel underground water pollutes stripping oxide compound tower, the volatile organic matter stripping section that comprises dissolving and difficult volatile organic compounds conversion zone; According to oxidation unit 2, stripping device 1 order erecting device from bottom to up, stripping device 1 becomes a whole tower structure with oxidation unit 2 repeatedly by flange arrangement;
Described stripping device 1 comprises stripping cylindrical section body 1, multilayer column plate 8, and opening for feed 3, inlet mouth 4, air outlet 5, each tower joint connects into a cylinder by flange;
Described stripping device is the stripping section of four circular sieve plates 8, comprises each feed inlet and outlet part and column plate part; Cylindrical shell top is provided with fluid inlet 3 and exhaust port 5; Fluid inlet 3 is provided with hydraulic pipe and feed liquor baffle plate; Exhaust port place is provided with scum dredger; Cylinder body bottom is provided with inlet mouth 4; Inlet mouth 4 flange connecting tube; In stripping section cylindrical shell, there are four sieve plates 8, sieve aperture is set respectively on every block of plate, seal pot, entrance safety zone, overflow weir, downtake; Tower top, each tower is saved flange and is connected;
Described stripping device adopts cylindrical structure, diameter 350mm, and high 1150mm, makes with synthetic glass, is divided into four tower joints and a tower top, and thief hole is respectively set; Circular escape pipe interface is established at stripping tower top, circular escape pipe interface internal diameter 125mm; Circular escape pipe interface is connected with flange with escape pipe; Stripping tower upper end is provided with circular injection port interface, circular injection port interface internal diameter 50mm, and circular injection port interface is connected with flange with inlet channel; Circular inlet pipe interface, circular inlet pipe interface internal diameter 100mm are established in stripping tower bottom; Circular inlet pipe interface is connected with flange with inlet pipe;
Described stripping device adopts circular sieve plate, sieve plate diameter 330mm, and thickness 8mm, makes with synthetic glass; Sieve plate seal pot width is 70mm, the recessed 20mm of seal pot, and entrance Anding District width is 15mm; Sieve aperture on plate is equilateral triangle, sieve diameter 3mm; Do not set out a mouthful Anding District; Overflow height of weir 30mm;
Described oxidation unit is made with synthetic glass;
Described oxidation unit is the bubbling type oxidation panel with aeration head, comprises built-in filler, aeration head, each feed inlet and outlet part and baffle part; Cylindrical shell top is provided with inlet mouth; Inlet mouth is provided with inlet pipe; Stripping section liquid enters oxidation panel place and is provided with feed liquor dividing plate with holes; Glaze pearl filler in the middle of cylindrical shell; Granulated glass sphere filler bottom dress aeration head; Cylinder body bottom is provided with water outlet; Water outlet connects outlet conduit with flange;
Described oxidation unit adopts cylindrical structure, diameter 350mm, and high 1000mm, makes with synthetic glass, and thief hole is set at the bottom of tower; Feed liquor dividing plate with holes upper end is vertically provided with 10 posticums, posticum internal diameter 10mm; The high 50mm of granulated glass sphere filler, fills diameter 215mm; Oxidation panel tower bottom is established circular rising pipe interface, circular rising pipe interface internal diameter 50mm; Circular rising pipe interface is connected with flange with outlet conduit;
The in-built large circular aeration head of described oxidation unit tower or 4 small-sized aeration head combinations.
After device assembling is complete, to extract pending organic contamination underground water out and pass into stripping tower from tower top water-in, contaminated underground water is injected on first block of column plate of stripping tower by water-in, and current are the abundant stripping of process air in crossing the process of sieve plate.By stripping section, the water of having removed volatile organic matter enters oxidation panel and carries out ozone oxidation, makes difficult volatile organic compounds and colour developing organism by ozone oxidation.Stripping tail gas enters follow-up processing unit by exhaust pipe.Up to standard and be directly recycled into underground by rising pipe after water treatment.
Detailed process is:
(1) device is installed: fixed screen deck on each joint cylindrical shell, and downtake and overflow weir, connect cylindrical shell from bottom to up section by section with flange arrangement, with the fixing tower body of circular retort stand, pass in and out on sample interface corresponding pipeline is installed at each;
(2) water inlet experiment: (trieline concentration is 750mg/L by the underground water that polluted by multiple hydrochloric ether to be burgundy, tce concentration is 200mg/L, chlorophenol concentration 5.3mg/L, dioctyl phthalate (DOP) concentration 0.02mg/L and metal ion) with pump, promote and send in tower top fluid inlet, stripping section bottom air inlet blasts cleaned air with gas blower, slowly passes into ozone at oxidation panel simultaneously.After system reaches and stablizes, stripping tower water outlet TCE concentration is about 0.1mg/L, and PCE concentration is about 0.02mg/L, and at the bottom of tower, water outlet is decoloured, whole hydrochloric ether removal efficiency is about 99%, and this equipment can reach good effect to the underground water reparation containing volatile and difficult volatilization coloured contaminant as seen.
System Design of the present invention is perfect, and it is convenient to implement, and the underground water of processing containing volatile and difficult volatilization colour developing Organic pollutants has feature efficient, energy-conservation, non-secondary pollution; Repair underground water wide ranges, removable pollutant kind is many, applied range.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (3)
1. a groundwater pollution stripping oxide compound tower, is characterized in that, comprises stripping device and oxidation unit, and stripping device and oxidation unit are linked to be a whole tower structure by flange arrangement;
Described oxidation unit is the bubbling type oxidation panel with aeration head, comprises cylindrical shell, built-in filler, aeration head, each feed inlet and outlet part and baffle part; The cylindrical shell top of oxidation unit is provided with inlet mouth; Inlet mouth is provided with inlet pipe; The liquid of stripping device enters oxidation unit place and is provided with feed liquor dividing plate with holes; Glaze pearl filler in the middle of the cylindrical shell of oxidation unit; Granulated glass sphere filler bottom dress aeration head; The cylinder body bottom of oxidation unit is provided with water outlet; Water outlet connects outlet conduit with flange;
Described stripping device comprises cylinder, multilayer column plate, and opening for feed, inlet mouth, air outlet, pressure tap, pressure release valve, hydraulic pressure difference meter, each tower joint connects into a cylinder by flange;
Described stripping device is the stripping section of four circular sieve plates, comprises each feed inlet and outlet part and column plate part; Cylindrical shell top is provided with fluid inlet and exhaust port; Fluid inlet is provided with hydraulic pipe and feed liquor baffle plate; Exhaust port place is provided with scum dredger; The cylinder body bottom of stripping device is provided with inlet mouth; Inlet mouth flange connecting tube; In the cylindrical shell of stripping device, there are four sieve plates, sieve aperture is set respectively on every block of plate, seal pot, entrance safety zone, overflow weir, downtake; Tower top, each tower is saved flange and is connected;
Described stripping device adopts cylindrical structure, with synthetic glass, makes, and is divided into four tower joints and a tower top, and thief hole is respectively set; Circular escape pipe interface is established at stripping tower top, and circular escape pipe interface is connected with flange with escape pipe; Stripping tower upper end is provided with circular injection port interface, and circular injection port interface is connected with flange with inlet channel; Circular inlet pipe interface is established in stripping tower bottom; Circular inlet pipe interface is connected with flange with inlet pipe;
Described stripping device adopts circular sieve plate, with synthetic glass, makes.
2. a kind of groundwater pollution stripping oxide compound tower as claimed in claim 1, is characterized in that, described oxidation unit adopts cylindrical structure, with synthetic glass, makes, and thief hole is set at the bottom of tower; Feed liquor dividing plate with holes upper end is vertically provided with posticum; The tower bottom of oxidation unit is established circular rising pipe interface; Circular rising pipe interface is connected with flange with outlet conduit.
3. a kind of groundwater pollution stripping oxide compound tower as claimed in claim 1, is characterized in that, the in-built large circular aeration head of tower of described oxidation unit or 4 small-sized aeration head combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108409.1A CN102241444B (en) | 2011-04-28 | 2011-04-28 | Blowoff and oxidation combined tower for polluted groundwater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108409.1A CN102241444B (en) | 2011-04-28 | 2011-04-28 | Blowoff and oxidation combined tower for polluted groundwater |
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| Publication Number | Publication Date |
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| CN102241444A CN102241444A (en) | 2011-11-16 |
| CN102241444B true CN102241444B (en) | 2014-03-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102842260B (en) * | 2012-09-11 | 2014-06-25 | 大连理工大学 | General tower teaching aid |
| CN103112915B (en) * | 2013-02-19 | 2014-04-16 | 江苏大地益源环境修复有限公司 | Circulation well method and device for removing pollutants in underground water |
| CN104667555B (en) * | 2015-02-13 | 2016-08-24 | 侯翔宇 | A kind of multi-functional foam removal rectifying column |
| CN105819609B (en) * | 2016-05-30 | 2018-07-17 | 江苏建筑职业技术学院 | A kind of production method for the towers units and its critical component decomposing ethlyene dichloride |
| CN107555690A (en) * | 2017-10-20 | 2018-01-09 | 徐翔 | Water-based metal cutting fluid environmental protection treatment unit and technique |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717940Y (en) * | 2004-08-17 | 2005-08-17 | 天津天大天久科技股份有限公司 | Ozone catalytic oxidizing device |
| CN101898855A (en) * | 2010-07-16 | 2010-12-01 | 华东理工大学 | Integrated ex-situ repair system for underground water polluted by volatile organic compound |
| CN201762134U (en) * | 2010-08-06 | 2011-03-16 | 长春黄金研究院 | Multifunctional sewage treatment packed tower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001212553A (en) * | 2000-01-31 | 2001-08-07 | Data Craft:Kk | Pumped and aerated groundwater cleaning device and pumped and aerated groundwater cleaning method by the device |
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- 2011-04-28 CN CN201110108409.1A patent/CN102241444B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717940Y (en) * | 2004-08-17 | 2005-08-17 | 天津天大天久科技股份有限公司 | Ozone catalytic oxidizing device |
| CN101898855A (en) * | 2010-07-16 | 2010-12-01 | 华东理工大学 | Integrated ex-situ repair system for underground water polluted by volatile organic compound |
| CN201762134U (en) * | 2010-08-06 | 2011-03-16 | 长春黄金研究院 | Multifunctional sewage treatment packed tower |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-212553A 2001.08.07 |
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Inventor after: Lin Kuangfei Inventor after: Li Jing Inventor after: Zhang Meng Inventor after: Lv Shuguang Inventor after: Li Hui Inventor after: Zhang Wei Inventor after: Luo Qishi Inventor after: Li Zhongyuan Inventor after: Guo Wei Inventor after: Li Li Inventor after: Liao Zhiqiang Inventor after: Li Bingzhi Inventor after: Lin Lichong Inventor after: Peng Junbiao Inventor after: Zhu Ruili Inventor after: Jia Nan Inventor after: Zhang Xiuping Inventor before: Lin Kuangfei Inventor before: Zhang Meng Inventor before: Lv Shuguang Inventor before: Li Hui Inventor before: Zhang Wei Inventor before: Luo Qishi Inventor before: Li Zhongyuan Inventor before: Guo Wei Inventor before: Li Li Inventor before: Liao Zhiqiang Inventor before: Li Bingzhi Inventor before: Lin Lichong Inventor before: Peng Junbiao Inventor before: Jia Nan Inventor before: Zhang Xiuping Inventor before: Li Jing |
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Free format text: CORRECT: INVENTOR; FROM: LIN KUANGFEI LI LI LIAO ZHIQIANG LI BINGZHI LIN LICHONG PENG JUNBIAO JIA NAN ZHANG XIUPING LI JING ZHANG MENG LV SHUGUANG LI HUI ZHANG WEI LUO QISHI LI ZHONGYUAN GUO WEI TO: LIN KUANGFEI LI LI LIAO ZHIQIANG LI BINGZHI LIN LICHONG PENG JUNBIAO ZHU RUILI JIA NAN ZHANG XIUPING LI JING ZHANG MENG LV SHUGUANG LI HUI ZHANG WEI LUO QISHI LI ZHONGYUAN GUO WEI |
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