CN102115252B - Mechanochemical reductive dechlorination water treatment system - Google Patents
Mechanochemical reductive dechlorination water treatment system Download PDFInfo
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- CN102115252B CN102115252B CN2011100216411A CN201110021641A CN102115252B CN 102115252 B CN102115252 B CN 102115252B CN 2011100216411 A CN2011100216411 A CN 2011100216411A CN 201110021641 A CN201110021641 A CN 201110021641A CN 102115252 B CN102115252 B CN 102115252B
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Abstract
The invention relates to a mechanochemical reductive dechlorination water treatment system, comprising a reductive dechlorination reactor, a reducing agent dewaterer, a dryer and a mechanochemical reactor which are mutually communicated. When a halogenated pollutant is treated, a reducing agent with low cost is adopted and prepared by the mechanochemical reactor, the yield is high, and the process is simple. In addition, through the combined action of the reducing agent dewaterer, the dryer and the mechanochemical redactor, the reducing agent can also be regenerated, and the reducing agent subjected to surface activation has lossless performance and high reduction efficiency. The system also has the treatment capability for chlorinated organic load with high concentration and ultrahigh concentration, the treatment capability is hardly influenced by pollution loads, and the whole system can not generate other secondary pollutants such as dioxin, and the like due to the adoption of a closed system.
Description
Technical field
The present invention relates to technical field of sewage, be specifically related to a kind of mechanochemistry reduction dechlorination water treatment system.
Background technology
Chloro organic cpd is one type of important refractory organics organic cpds, has great hazardness.Nearly all chlorinatedorganic is all toxic, and wherein chemical compound lot is considered to have " carcinogenic, teratogenesis, mutagenesis " effect.Not only toxicity is big but also physicochemical property stable for chlorinatedorganic, is difficult to decompose. have in the organic pollutant of Environmental Protection Agency (EPA) specified priority control to be chlorinated organics more than 50%.Contain the chloro organic waste liquid and extensively be present in the industries such as chemical industry, pharmacy, be used for dry-cleaning operation and metal cleaning more like trieline, zellon.Polychlorobiphenyl in the aromatic series (PCBs) is used in tackiness agent, Additive Production and the X-former manufacturing owing to having good chemicalstability.Chloro organic cpd uses through volatilization, container leakage, discharge of wastewater, agricultural chemicals and the approach such as burning of chlorinated organics finished product get into environment, severe contamination atmosphere, soil, underground water and surface water.In addition, what extensively adopt now is the method for drinking water disinfect with chlorine, also can produce deleterious chlorinatedorganic.Monitored the existence of chlorinatedorganic in the part urban drinking water of China.On the other hand, most chlorinatedorganics are the artificial-synthetic compound, and chemical property is relatively stable, and existence of chlorine atom has toxicity to mikrobe on it, so in the occurring in nature degraded slowly, the environmental hazard cycle is long.As the polychlorobiphenyl transformation period for reaching last 100 years, although disabled in many countries, its trace various places still all over the world.Because they are difficult to biological degradation and poisonous, so adopt common biology, physics and chemical process to be difficult to realize the purpose of detoxification.And the high temperature incineration system is fit to the processing for a small amount of high concentrated organic waste liquid, but for the processing of the chloro organic chemical waste water of a large amount of difficult degradations, incineration system is just no longer suitable.
And utilize zero-valent metal that the halo pollutent is handled is the reductibility that relies on metal, and it implements degraded through the galvanic cell reaction pair, can reduce its bio-toxicity greatly, improves its biodegradability.Present widely used zero-valent metal is the iron filings materials, iron filings, carbonaceous material and scrap metal simply is mixed with the formation metal carbon material capable puts into catalyticreactor.But this catalyzed reaction material is easily surface passivation often, generates passive film and has hindered the carrying out of reduction reaction, caused reduction reaction often the time longer; Often preparation system is complicated to add efficiently catalytic reducer, and cost is higher.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art exists; The object of the present invention is to provide a kind of mechanochemistry reduction dechlorination water treatment system; Mutual conduction connects in this mechanochemistry reduction dechlorination water treatment system reduction dechlorination reactor drum, reductive agent water extracter, moisture eliminator and mechanico-chemical reaction device, the reductive agent cost that when the halo pollutent is handled, uses is low; Reductive agent is by the preparation of mechanico-chemical reaction device, and manufacture is big and technology is simple; Through the acting in conjunction of reductive agent water extracter, moisture eliminator and mechanico-chemical reaction device, reductive agent can also obtain regeneration in addition, and is performance undamaged through the reductive agent of surface active, and reduction efficiency is high; This system also has the processing power of high density and ultrahigh concentration chloro organic loading, and the contaminated hardly effects of load of its disposing capacity adds that whole system can not produce other secondary pollutions such as dioxin owing to adopt the system of sealing.
In order to achieve the above object, the technical scheme that the present invention adopted is:
A kind of mechanochemistry reduction dechlorination water treatment system; Comprise that the surface has the reduction dechlorination reactor drum 1 of water-in 10 and water outlet 11; The current of this reduction dechlorination reactor drum 1 bottom are connected with the inlet 13 of reductive agent delivery port 12 through sealing conveying belt 8 and reductive agent water extracter 5; The outlet 14 of reductive agent water extracter 5 is connected with the inlet 15 of moisture eliminator 6; The outlet 16 of moisture eliminator 6 is connected with the inlet 17 of mechanico-chemical reaction device 7, and the outlet 18 of mechanico-chemical reaction device 7 is connected through the sealing conveying belt 8 that the end has the airtight transport pipe 4 of spiral with the reductive agent input aperture 19 on reduction dechlorination reactor drum 1 surface.
Described reduction dechlorination reactor drum 1 is made up of the upflowing fluidized-bed reactor; Also be provided with on the internal side wall of this upflowing fluidized-bed reactor and have the baffle plate 2 that becomes 30～45 ° of angles with vertical direction; The central interior of upflowing fluidized-bed reactor is provided with whisking appliance 3, and the blade of this whisking appliance 3 is positioned at the bottom position of this upflowing fluidized-bed reactor.
Described mechanico-chemical reaction device 7 is for having the oscillatory type ball mill or the roller milling machine of nitrogen protection equipment 9.
Reduction dechlorination reactor drum 1, reductive agent water extracter 5, moisture eliminator 6 and mechanico-chemical reaction device 7 through mutual conduction connection in this mechanochemistry reduction dechlorination water treatment system; The reductive agent cost that when the halo pollutent is handled, uses is low; And reductive agent is by 7 preparations of mechanico-chemical reaction device, and manufacture is big and technology is simple; Through the acting in conjunction of reductive agent water extracter 5, moisture eliminator 6 and mechanico-chemical reaction device 7, reductive agent can also obtain regeneration in addition, and is performance undamaged through the reductive agent of surface active, and reduction efficiency is high; This system also has the processing power of high density and ultrahigh concentration chloro organic loading, and the contaminated hardly effects of load of its disposing capacity adds that whole system can not produce other secondary pollutions such as dioxin owing to adopt the system of sealing.
Description of drawings
Accompanying drawing is that mechanochemistry reduction dechlorination water treatment system internal structure of the present invention connects synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the present invention is done more detailed explanation.
Shown in accompanying drawing; Mechanochemistry reduction dechlorination water treatment system; Comprise that the surface has the reduction dechlorination reactor drum 1 of water-in 10 and water outlet 11; The current of this reduction dechlorination reactor drum 1 bottom are connected with the inlet 13 of reductive agent delivery port 12 through sealing conveying belt 8 and reductive agent water extracter 5; The outlet 14 of reductive agent water extracter 5 is connected with the inlet 15 of moisture eliminator 6, and the outlet 16 of moisture eliminator 6 is connected with the inlet 17 of mechanico-chemical reaction device 7, and the outlet 18 of mechanico-chemical reaction device 7 is connected through the sealing conveying belt 8 that the end has the airtight transport pipe 4 of spiral with the reductive agent input aperture 19 on reduction dechlorination reactor drum 1 surface.Described reduction dechlorination reactor drum 1 is made up of the upflowing fluidized-bed reactor; Also be provided with on the internal side wall of this upflowing fluidized-bed reactor and have the baffle plate 2 that becomes 30～45 ° of angles with vertical direction; The central interior of upflowing fluidized-bed reactor is provided with whisking appliance 3, and the blade of this whisking appliance 3 is positioned at the bottom position of this upflowing fluidized-bed reactor.Described mechanico-chemical reaction device 7 is for having the oscillatory type ball mill or the roller milling machine of nitrogen protection equipment 9.
Principle of work of the present invention is: be to put into halo pollutent to be restored and corresponding reductive agent in the upflowing fluidized-bed reactor toward reduction dechlorination reaction device 1 at first; Water-in 10 from the upflowing fluidized-bed reactor pours into water for cleaning subsequently; And start whisking appliance 3 and stir water for cleaning mixing reductive agents and carry out the dehalogenation reduction of halo pollutent and let the water for cleaning that cleans the back and have a reductive agent rise, at this moment become with vertical direction the baffle plate 2 of 30～45 ° of angles let after cleaning water for cleaning through and hinder reductive agent through baffle plate 2, the water for cleaning after the cleaning flows out through the water outlet 11 of upflowing fluidized-bed reactor immediately; Reductive agent then returns in the upflowing fluidized-bed reactor under its action of gravity; After the partial reduction agent is because of surface passivation or inactivation, stop stirring rake 3 and rotate, reductive agent is because heavier than water; So lean on gravity settling to reactor bottom; To partly with the reductive agent mixture of water be extracted through reductive agent water extracter 5 by current and reductive agent delivery port 12 this moment, and via getting into moisture eliminator 6, the interference of removing moisture fully with sealing conveying belt 8 after the preliminary hydro-extraction; The reductive agent of surface passivation subsequently or inactivation is discharged into mechanico-chemical reaction device 7; The oscillatory type ball mill or the roller milling machine that also promptly have nitrogen protection equipment 9, the mechanochemistry activation is carried out in nitrogen protection equipment 9 inflated with nitrogen protection so then; In reactivation process; The reductive agent metal produces section, makes new avtive spot increase, and it is in the upflowing fluidized-bed reactor that the reductive agent that activation is good gets into reduction dechlorination reactor drum 1 through the airtight transport pipe 4 of spiral again.
Reduction dechlorination reactor drum 1, reductive agent water extracter 5, moisture eliminator 6 and mechanico-chemical reaction device 7 through mutual conduction connection in this mechanochemistry reduction dechlorination water treatment system; Just can the low reductive agent of use cost be handled by the halo pollutent; And reductive agent is by 7 preparations of mechanico-chemical reaction device, and manufacture is big and technology is simple; Through the acting in conjunction of reductive agent water extracter 5, moisture eliminator 6 and mechanico-chemical reaction device 7, reductive agent can also obtain regeneration in addition, and is performance undamaged through the reductive agent of surface active, and reduction efficiency is high; This system also has the processing power of high density and ultrahigh concentration chloro organic loading, and the contaminated hardly effects of load of its disposing capacity adds that whole system can not produce other secondary pollutions such as dioxin owing to adopt the system of sealing.
Claims (3)
1. mechanochemistry reduction dechlorination water treatment system; Comprise that the surface has the reduction dechlorination reactor drum (1) of water-in (10) and water outlet (11); It is characterized in that: the current of this reduction dechlorination reactor drum (1) bottom are connected with the inlet (13) of reductive agent delivery port (12) through sealing conveying belt and reductive agent water extracter (5); The outlet (14) of reductive agent water extracter (5) and the inlet (15) of moisture eliminator (6) are connected; The outlet (16) of moisture eliminator (6) and the inlet (17) of mechanico-chemical reaction device (7) are connected, and the outlet (18) of mechanico-chemical reaction device (7) is connected through the sealing conveying belt that the end has the airtight transport pipe of spiral (4) with the reductive agent input aperture (19) on reduction dechlorination reactor drum (1) surface.
2. a kind of mechanochemistry reduction dechlorination water treatment system according to claim 1; It is characterized in that: described reduction dechlorination reactor drum (1) is made up of the upflowing fluidized-bed reactor; Also be provided with on the internal side wall of this upflowing fluidized-bed reactor and have the baffle plate (2) that becomes 30～45 ° of angles with vertical direction; The central interior of upflowing fluidized-bed reactor is provided with whisking appliance (3), and the blade of this whisking appliance (3) is positioned at the bottom position of this upflowing fluidized-bed reactor.
3. according to claim 1 or the described a kind of mechanochemistry reduction dechlorination water treatment system of claim 2, it is characterized in that: described mechanico-chemical reaction device (7) is for having the oscillatory type ball mill or the roller milling machine of nitrogen protection equipment (9).
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| CN2011100216411A CN102115252B (en) | 2011-01-19 | 2011-01-19 | Mechanochemical reductive dechlorination water treatment system |
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| CN2011100216411A CN102115252B (en) | 2011-01-19 | 2011-01-19 | Mechanochemical reductive dechlorination water treatment system |
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| CN102115252B true CN102115252B (en) | 2012-05-09 |
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| CN107649501A (en) * | 2017-09-27 | 2018-02-02 | 江苏南京地质工程勘察院 | A kind of method of 2,4 Dichlorophenols in directly ball-milling method degraded soil |
| CN110328203B (en) * | 2019-07-09 | 2021-11-12 | 珠海格力智能装备有限公司 | Material suction tank flushing method with good flushing effect and urea machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428888A (en) * | 2008-11-27 | 2009-05-13 | 北京理工大学 | Method and apparatus for treating polychloride waste |
| CN101531419A (en) * | 2009-04-13 | 2009-09-16 | 杭州浙大易泰环境科技有限公司 | Method for reinforced metal reduction dechlorination treatment of chloro-alkenes waste water |
| CN201351130Y (en) * | 2008-12-29 | 2009-11-25 | 广州唯普电力科技有限公司 | Dechlorination device for water treatment |
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| US7699991B2 (en) * | 2004-05-05 | 2010-04-20 | Samuel Rupert Owens | Apparatus and process for water conditioning |
| WO2008121373A2 (en) * | 2007-03-30 | 2008-10-09 | Applied Process Technology, Inc. | Membrane biofilm reactor for removing contaminants from ground water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428888A (en) * | 2008-11-27 | 2009-05-13 | 北京理工大学 | Method and apparatus for treating polychloride waste |
| CN201351130Y (en) * | 2008-12-29 | 2009-11-25 | 广州唯普电力科技有限公司 | Dechlorination device for water treatment |
| CN101531419A (en) * | 2009-04-13 | 2009-09-16 | 杭州浙大易泰环境科技有限公司 | Method for reinforced metal reduction dechlorination treatment of chloro-alkenes waste water |
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Application publication date: 20110706 Assignee: Sino German (Beijing) Environmental Research Institute Co Ltd Assignor: Tsinghua University Contract record no.: 2013990000391 Denomination of invention: Mechanochemical reductive dechlorination water treatment system Granted publication date: 20120509 License type: Exclusive License Record date: 20130715 |
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Change date: 20140506 Contract record no.: 2013990000391 Assignee after: Limited by Share Ltd (Beijing) environmental monitoring and analysis Assignee before: Sino German (Beijing) Environmental Research Institute Co Ltd |
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Change date: 20140506 Contract record no.: 2013990000391 Assignee after: Limited by Share Ltd (Beijing) environmental monitoring and analysis Assignee before: Sino German (Beijing) Environmental Research Institute Co Ltd |
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