CN101913723B - Recycling device and method for treating organic waste water with organic bentonite - Google Patents
Recycling device and method for treating organic waste water with organic bentonite Download PDFInfo
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- CN101913723B CN101913723B CN201010256579XA CN201010256579A CN101913723B CN 101913723 B CN101913723 B CN 101913723B CN 201010256579X A CN201010256579X A CN 201010256579XA CN 201010256579 A CN201010256579 A CN 201010256579A CN 101913723 B CN101913723 B CN 101913723B
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Abstract
The invention discloses a recycling device and a recycling method for treating organic waste water with organic bentonite. The device is barrel-shaped and consists of an upper thick barrel and a lower small-diameter bucket which are communicated with each other, wherein an internal barrel partitions a lower half part into an inner ring and an outer ring; waste water enters the barrel and circulates in the barrel; the organic bentonite is fully contacted with a pollutant to finish adsorption; the barrel mouth of the thick barrel is provided with a circle of overflow weirs; gas collecting ports are formed on an upper barrel-shaped part and right above the internal barrel; a water inlet pipe is communicated with the internal barrel from the underside of the internal barrel; a chemical feed pipe is communicated with an ultrasonic vibrator box fixed at the bottom of the barrel; poly-ferric chloride is added into the top of the barrel; adsorbed organic bentonite is submerged to the bottom of the barrel by flocculation; and the waste water is drained from the overflow weirs, so that waste water purification is completed. The device and the method have the advantages of simply and effectively solving the problems of difficult solid and liquid separation and regeneration of the organic bentonite during waste water treatment, preventing pollution transfer caused by the adsorption of an organic pollutant by the organic bentonite and realizing the adsorption and regeneration continuous operation of the organic bentonite.
Description
Technical field
The present invention relates to technical field of sewage, relate in particular to recycle device and method with treating organic waste water with organic bentonite.
Background technology
Wilkinite be a kind of be the tonstein that essential mineral is formed with the smectite, be to use one of nonmetallic minerals the most widely.Organobentonite is to replace the interlayer exchangeable cation in the smectite with positively charged ions such as organic ammonium salt, quaternary ammonium salts, thereby makes wilkinite changed into the organobentonite of lipophilic-hydrophobic property by hydrophilic oleophobic property.Mainly as sorbent material, the effect of removing organic pollutant in the water is very good in wastewater treatment for organobentonite, as with α in the wilkinite adsorption treatment water of cetyl trimethylammonium bromide modification-, beta-naphthylamine, naphthyl alcohol, its clearance is all greater than 95%.It is suitable that research shows that organobentonite is adsorbed with the performance and the gac of pollutents such as organic pollutants such as polycyclic aromatic hydrocarbons, dyestuff, agricultural chemicals; But the defective of wilkinite when wastewater treatment is: original treatment process all is hand-fed-stirring-absorption-separation periodical operation, and process cost is high, efficient is low.Solid-liquid separation difficulty, recycling difficulty in the waste water; Cause the application in polluting control to rest on the laboratory study stage basically; Do not see the recycle device of treating organic waste water with organic bentonite, the large-scale promotion application of this just serious restriction treating organic waste water with organic bentonite.
Summary of the invention
The present invention overcomes the deficiency of existing organobentonite aspect processing organic waste water; A kind of treating organic waste water with organic bentonite recycle device and method is provided; Can solve the problem that organobentonite adsorption treatment organic waste water after stain thing shifts, and the recycling wilkinite.
The technical scheme that apparatus of the present invention adopt is: this device is tubbiness; Form by relatively little barrel being connected of top thick bucket and following diameter; In bucket be positioned at lower part of tubbiness and lower part of tubbiness be divided into inside and outside two circles; Establish a circle overflow weir at the bung place of thick bucket, be positioned at tubbiness the first half and bucket directly over establish the gas collection mouth; The sidepiece perforate is installed into water pipe and chemical feed pipe in the bucket lower end, water inlet pipe under be communicated in the bucket, chemical feed pipe is communicated in the ultrasonic oscillator case that is fixed on bucket bottom, lead is gone into UW oscillator case from bucket is external.
The technical scheme that the inventive method adopts is to comprise the steps:
A, pending organic waste water is got in the bucket from water inlet pipe, make waste water in bucket, form circulation, let organobentonite fully contact with pollutants in waste water;
B, when the liquid level of organic waste water in bucket surpasses interior bucket height, add poly-ferric chloride from thick bucket top, add hydrogen peroxide and acid from chemical feed pipe, connect lead and make the ultrasonic oscillator case launch UW;
Organobentonite after C, the absorption sinks to the bucket bottom through flocculation, and the waste water after the processing is discharged from the overflow weir overflow, accomplishes purification of waste water;
D, sink to the most of catalyzed oxidation of organism in the organobentonite of bucket bottom; The dioxide gas that produces in the oxidising process continues to stir waste water and organobentonite in the process of come-up, and dioxide gas is overflowed from the gas collection mouth;
E, the regenerated bentonite clay particle that is stirred come-up by dioxide gas that sinks to bucket bottom continue to remove pollutent at the bucket internal adsorption.
Utilization of the present invention is the tubbiness device of different diameter up and down, and bucket is divided into inside and outside two circles, impels waste water and organobentonite at the bucket internal recycle, and organic pollutant fully contacts and firmly is adsorbed between bentonite bed with organobentonite; Add poly-ferric chloride, utilize iron as catalyzer, and the hydrogen peroxide synergy organism between the catalyzed oxidation bentonite bed down, quicken organobentonite and precipitate; Because the bucket top is thicker, water flow velocity descends and is easy to the PM for particulate matter sedimentation, and the waste water after the processing overflows from the bucket top; There is the organism between the oxidation bentonite bed under the acting in conjunction of hydrogen peroxide and iron in the organobentonite of post precipitation in bucket bottom, and utilizes UW to quicken oxidation operation, makes between bentonite bed most of organism oxidized; Make organobentonite regain to the organism adsorptive power; The iron of participating in catalyzed oxidation also can be adsorbed in its interlayer by wilkinite, in oxidising process, owing to produce carbonic acid gas, makes organobentonite along with carbonic acid gas bubble come-up; Again get into absorption-precipitate phase; Dioxide gas stirs waste water and organobentonite simultaneously, strengthens both contacts, thereby forms the continuous processing of organobentonite to waste water.This device is realized bentonite continuous adsorption-deposition-separation organic waste water, and operate continuously has improved waste water treatment efficiency, has realized the application of organobentonite waste water treatment engineering; This method is simple, can solve the problem of bringing pollution transportation after the organobentonite adsorption treatment, effectively handles the organic waste water of cation tensio-active agent or cationic dyestuff.In addition, utilize hyperacoustic " cavitation effect " can quicken the oxidation of pollutent, make that the recovery time is short, regeneration is thorough.In the UW mechanism; The bubble closure can form and surpass 1000 atmospheric instantaneous pressures; Utilize ultransonic cavitation effect; The intensive shockwave and the high-speed jet that when bubble collapses, produce can destroy the stagnant absciss layer on solid-liquid, liquid/liquid and gas/liquid interface, quicken catalytic oxidizing reaction of iron and pollutent and decompose, and obtain recycled wilkinite.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Among Fig. 1: 1. thick bucket, 2. overflow weir, 3. barrel, 4. in bucket, 5. water inlet pipe, 6. chemical feed pipe, 7. ultrasonic oscillator case, 8. gas collection mouth, 9. lead, bucket position of upper in a. gas collection mouth end opening lowest part, b..
Embodiment
Like Fig. 1～2 shown devices, this device is round barrel shape, is made up of top thick bucket 1 and the less relatively bucket 3 of following diameter, and the diameter ratio of thick bucket 1 and bucket 3 is 1.2～1.6: 1.In bucket 4 lower part of being positioned at tubbiness, lower part of tubbiness is divided into inside and outside two circles, establish a circle overflow weir 2 at the bung place of thick bucket 1, waste water is discharged outside the bucket through this overflow weir 2.Be positioned at tubbiness the first half and the bucket 4 directly over establish gas collection mouth 8.Be installed into water pipe 5 and chemical feed pipe 6 in bucket 3 lower end sidepiece perforates.Water inlet pipe 5 under be communicated in the bucket 4, pending waste water gets into from the bucket lower end by water inlet pipe 5.Chemical feed pipe 6 is communicated in the ultrasonic oscillator case 7 that is fixed on bucket 3 bottoms, and lead 9 is gone into UW oscillator case 7 from bucket is external.Gas collection mouth 8 extends downwardly into the lowest part a of end opening, the position of upper b of interior bucket 4, and the height of lowest part a is lower than the height of position of upper b, differs 4～10cm therebetween.
The inventive method is earlier pending organic waste water to be got in the bucket from water inlet pipe 5, makes waste water in bucket, form circulation, lets organobentonite fully contact with pollutants in waste water; Accomplish absorption.When the liquid level of organic waste water in bucket surpasses interior barrel 4 height, be added into poly-ferric chloride from thick bucket 1 top, the poly-ferric chloride amount of every liter of waste water interpolation is 2～5mg.Add hydrogen peroxide and acid from chemical feed pipe 6, the hydrogen peroxide addition is mineral acids such as hydrochloric acid, sulfuric acid, nitric acid for the acid that in every kilogram dry weight wilkinite, adds 5～50g, interpolation, and the consumption of acid is 2～6 for the pH that keeps the bottom regeneration section.Connect lead 9 and make ultrasonic oscillator case 7 emission UW; Ultrasonic oscillator case 7 to launch ultrasonic frequency be that 20～120kHz, power are 200～2000W, adopt emission continuously or adopt 3-5 spacing pulse second method for transmitting.
Sink to bucket 3 bottoms through the organobentonite after the above-mentioned steps absorption through flocculation, the waste water after the processing is discharged from overflow weir 2 overflows, accomplishes purification of waste water.Under poly-ferric chloride and hydrogen peroxide effect, will sink to the most of catalyzed oxidation of organism in the organobentonite of bucket 3 bottoms fast; The dioxide gas that produces in the oxidising process continues to stir waste water and organobentonite in the process of come-up, dioxide gas is overflowed from the gas collection mouth 8 on staving top.The regenerated bentonite clay particle that is stirred come-up by dioxide gas that sinks to bucket 3 bottoms continues to remove pollutent at the bucket internal adsorption.
Below by 2 embodiment the present invention is described in detail again.
The organobentonite of selecting for use the cetyl trimethylammonium bromide modified alta-mud to obtain, the thick bucket 1 of device and the diameter ratio of bucket 3 are 1.2: 1, bucket position of upper b was 4cm in gas collection mouth end opening lowest part a was lower than.Open water intaking valve and from water inlet pipe 5, intake, add organobentonite from the device upper end.Waste water is that the waste water from dyestuff concentration that contains methylene blue is 20mg/L, and flow is 1L/h, and waste water is through with overflow weir 2 overflows from the device upper end after organobentonite contacts.In water inlet, connect ultrasonic power through lead 9; Add coagulant polymeric iron(ic)chloride when liquid level surpasses interior barrel 4 height in device; Consumption is a 2mg/L waste water; Add hydrogen peroxide and hydrochloric acid through chemical feed pipe 6 simultaneously, the hydrogen peroxide consumption is the 5g/g wilkinite, and the hydrochloric acid consumption is the 0.05g/g wilkinite.Ultrasonic frequency is 20kHz, and power is 200W, 3 pulse per second (PPS)s emission at interval; Continue to analyze the blue concentration of water outlet Central Asia methyl and remain on 2-3mg/L basically; Pollutants removal rate reaches 90% in the waste water, and the organobentonite circulated therein is used, and organism is oxidized to carbonic acid gas and overflows.
The organobentonite of selecting for use the Trimethyllaurylammonium bromide modified alta-mud to obtain, the thick bucket 1 of device and the diameter ratio of bucket 3 are 1.6: 1, bucket position of upper b was 10cm in gas collection mouth end opening lowest part a was lower than.Open water intaking valve and from water inlet pipe 5, intake, add organobentonite from the device upper end.Waste water is that the waste water from dyestuff concentration that contains β-Nai Fen is 10mg/L, and flow is 1L/h, and waste water is through with overflow weir 2 overflows from the device upper end after organobentonite contacts.In water inlet, connect ultrasonic power; Add coagulant polymeric iron(ic)chloride when liquid level surpasses interior barrel 4 height in device, consumption is a 2mg/L waste water, adds hydrogen peroxide and hydrochloric acid through chemical feed pipe 6 simultaneously; The hydrogen peroxide consumption is the 5g/g wilkinite, and the hydrochloric acid consumption is the 0.05g/g wilkinite.Ultrasonic frequency is 20kHz, and power is 200W, 5 pulse per second (PPS)s emission at interval; β-Nai Fen concentration remains on 0.4-0.7mg/L basically in the lasting analysis water outlet; Pollutants removal rate reaches 96% in the waste water, and the organobentonite circulated therein is used, and organism is oxidized to carbonic acid gas and overflows.
Claims (4)
1. the recycle device of a treating organic waste water with organic bentonite; It is characterized in that: this device is tubbiness; Be connected with the relatively little bucket (3) of following diameter by top thick bucket (1) and form, interior barrel (4) are positioned at lower part of this device, and lower part of this device is divided into inside and outside two circles; Establish a circle overflow weir (2) at the bung place of thick bucket (1), be positioned at this device the first half and bucket (4) directly over establish gas collection mouth (8); Bucket (3) lower end sidepiece perforate relatively little at diameter is installed into water pipe (5) and chemical feed pipe (6); Water inlet pipe (5) under be communicated in the interior bucket (4); Chemical feed pipe (6) is communicated in the ultrasonic oscillator case (7) that is fixed on the relatively little bucket of diameter (3) bottom, and lead (9) is gone into UW oscillator case (7) from the relatively little bucket (3) of diameter is external; Pending organic waste water is got in the relatively little bucket (3) of diameter from water inlet pipe (5), make waste water in the relatively little bucket (3) of diameter, form circulation, let organobentonite fully contact with pollutants in waste water; When the liquid level of organic waste water in the relatively little bucket (3) of diameter surpasses interior bucket (4) height, add poly-ferric chloride from thick bucket (1) top, add hydrogen peroxide and acid from chemical feed pipe (6), connect lead (9) and make ultrasonic oscillator case (7) emission UW; Organobentonite after the absorption sinks to relatively little bucket (3) bottom of diameter through flocculation, and the waste water after the processing is discharged from overflow weir (2) overflow; Sink to the most of catalyzed oxidation of organism in the organobentonite of the relatively little bucket of diameter (3) bottom; The dioxide gas that produces in the oxidising process continues to stir waste water and organobentonite in the process of come-up, and dioxide gas is overflowed from gas collection mouth (8); The regenerated bentonite clay particle that is stirred come-up by dioxide gas that sinks to the relatively little bucket of diameter (3) bottom continues to remove pollutent at relatively little bucket (3) internal adsorption of diameter.
2. the recycle device of a kind of treating organic waste water with organic bentonite according to claim 1 is characterized in that: the diameter ratio of the bucket (3) that thick bucket (1) and diameter are relatively little is 1.2～1.6: 1; The height that gas collection mouth (8) extends downwardly into lowest part (a) is lower than position of upper (b) 4～10cm of interior bucket (4).
3. the recycle method of a treating organic waste water with organic bentonite is characterized in that in turn including the following steps:
A, pending organic waste water is got in the relatively little bucket (3) of diameter from water inlet pipe (5), waste water is formed in the relatively little bucket (3) of diameter circulate, let organobentonite fully contact with pollutants in waste water;
B, when organic waste water when the relatively little liquid level of bucket in (3) of diameter surpasses interior bucket (4) height, add poly-ferric chloride from thick bucket (1) top, add hydrogen peroxide and acid from chemical feed pipe (6), connection lead (9) makes ultrasonic oscillator case (7) launch UW;
Organobentonite after C, the absorption sinks to relatively little bucket (3) bottom of diameter through flocculation, and the waste water after the processing is discharged from overflow weir (2) overflow, accomplishes purification of waste water;
D, sink to the most of catalyzed oxidation of organism in the organobentonite of the relatively little bucket of diameter (3) bottom; The dioxide gas that produces in the oxidising process continues to stir waste water and organobentonite in the process of come-up, and dioxide gas is overflowed from gas collection mouth (8);
E, the regenerated bentonite clay particle that is stirred come-up by dioxide gas that sinks to the relatively little bucket of diameter (3) bottom continue to remove pollutent at relatively little bucket (3) internal adsorption of diameter.
4. the recycle method of a kind of treating organic waste water with organic bentonite according to claim 3; It is characterized in that: among the said step B; The poly-ferric chloride addition is that 2～5mg/L, hydrogen peroxide addition are hydrochloric acid, sulfuric acid, nitric acid for the acid that in every kilogram dry weight wilkinite, adds 5～50g, interpolation, and the consumption of acid is for keeping pH=2～6 of bottom regeneration section; Said ultrasonic oscillator case (7) to launch ultrasonic frequency be that 20～120kHz, power are 200～2000W, adopt emission continuously or adopt the emission of 3-5 spacing pulse second.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102765800A (en) * | 2012-08-13 | 2012-11-07 | 常州大学 | Treatment method of organic wastewater through synthesis-free heterogeneous Fenton treatment |
| CN102757123B (en) * | 2012-08-13 | 2013-12-18 | 常州大学 | Ultrasonic-assisted mineralized refuse participating method for treating organic waste water by homogeneous Fenton |
| CN102757121B (en) * | 2012-08-13 | 2013-12-18 | 常州大学 | Mineralized refuse participating method for treating organic waste water by homogeneous Fenton |
| CN103288094A (en) * | 2013-03-21 | 2013-09-11 | 浙江桃花源环保科技有限公司 | A method and a device for recycling waste organic bentonite |
| CN106241913A (en) * | 2016-09-08 | 2016-12-21 | 合肥智慧殿投资管理有限公司 | A kind of waste-water from coal mine inorganic agent and its preparation method and application |
| CN108706832A (en) * | 2018-06-07 | 2018-10-26 | 广西壮族自治区环境保护科学研究院 | A kind of method of molasses alcohol waste liquid biological decolouring |
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| CN1446753A (en) * | 2003-04-07 | 2003-10-08 | 浙江大学 | Method for treating organic wastewater by using microwave cooperated with bentonite |
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| CN101134609A (en) * | 2007-08-07 | 2008-03-05 | 江苏工业学院 | Method for processing organic wastewater by employing ultrasonic wave and synergic organophilic bentonite |
| CN201151677Y (en) * | 2007-08-17 | 2008-11-19 | 江苏工业学院 | Ultrasonic strengthened organobentonite waste water treating device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4780215A (en) * | 1987-06-08 | 1988-10-25 | Carlson Russell L | Water purification device |
| CN1446753A (en) * | 2003-04-07 | 2003-10-08 | 浙江大学 | Method for treating organic wastewater by using microwave cooperated with bentonite |
| CN2910321Y (en) * | 2006-01-13 | 2007-06-13 | 王全文 | Spiral waterflow high efficiency sewage treatment putting-down machine |
| CN101134609A (en) * | 2007-08-07 | 2008-03-05 | 江苏工业学院 | Method for processing organic wastewater by employing ultrasonic wave and synergic organophilic bentonite |
| CN201151677Y (en) * | 2007-08-17 | 2008-11-19 | 江苏工业学院 | Ultrasonic strengthened organobentonite waste water treating device |
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Effective date of registration: 20150924 Address after: Daitou town of Liyang City Ferry Street 213311 Jiangsu city of Changzhou province 8-2 No. 7 Patentee after: Liyang Chang Technology Transfer Center Co., Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: Changzhou University |