CN101774664A - Method for removing cationic dye and hydrophobic organic pollutants in waste water simultaneously - Google Patents
Method for removing cationic dye and hydrophobic organic pollutants in waste water simultaneously Download PDFInfo
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- CN101774664A CN101774664A CN201010108756A CN201010108756A CN101774664A CN 101774664 A CN101774664 A CN 101774664A CN 201010108756 A CN201010108756 A CN 201010108756A CN 201010108756 A CN201010108756 A CN 201010108756A CN 101774664 A CN101774664 A CN 101774664A
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Abstract
The invention relates to a method for removing cationic dye and hydrophobic organic pollutants in waste water simultaneously, comprising the following steps: putting calcium base, sodium base or acidized bentonite and a cationic surfactant into the dye waste water with the dyes to be treated, stirring for 30 to 240 minutes, standing for 30 to 120 minutes, then carrying out solid-liquid separation on soil and water, and discharging the dye waste water after reaching the standards, wherein the ratio of the used amount of the bentonite and the amount of the waste water of the dyes to be treated is 1:100 to 1:10000, and the used amount of the cationic surfactant is 0.1 to 5 percent of the cation exchange capacity of the bentonite. The method has the advantages that the cationic dye and the hydrophobic organic pollutants in the waste water are removed simultaneously, the adopted natural mineral has low price, rich reserve; and when being used for treatment of dye waste water, the method has the characteristics of simple process, convenient implementation, low cost, easy promotion and the like.
Description
Technical field
The invention belongs to the environmental engineering technical field, be specifically related to a kind of method of removing cationic dyestuff and hydrophobic organic pollutant in the waste water simultaneously.
Background technology
In recent years, along with the develop rapidly of China's industry, the quantity of wastewater effluent in China every year is about 3.9 * 109t, and increases progressively with 1% speed, and textile printing and dyeing industry is the discharge of wastewater rich and influential family, accounts for 35% of whole discharged volume of industrial waste water.Printing and dyeing and waste water from dyestuff complicated component have characteristics such as colourity height, organic pollutant content height, and the dyestuff in the waste water can absorb light to be reduced water transparency, the hydrobiont growth is impacted, and causes than havoc to water surrounding.In addition, printing and dyeing and waste water from dyestuff complicated component except that dyestuff, contain hydrophobic organic pollutants such as multiple intermediate toward contact in the waste water, and further the polluted water environment needs to remove simultaneously.The processing of strengthening printing and dyeing and waste water from dyestuff can be alleviated the serious deficient problem of China's water resources, to protecting environment, keeping the eubiosis and have important role.
By retrieval, existing wilkinite is used for the relevant patent of wastewater treatment, as organic wilkinite synthetic-wastewater treatment integral method (patent of invention number: ZL03116257.6), microwave cooperating treating organic waste water with organic bentonite method (patent of invention number: ZL03116256.8), disclosed patent has, a kind of treatment process of printing and dyeing/waste water from dyestuff (patent of invention publication number: CN1843951), a kind of method of electroplating wastewater treatment (patent of invention publication number: CN1865161), a kind of processing contains method (the patent of invention publication number: CN101113045A) of aromatic nitro compound waste water.But utilize wilkinite absorption cationic dyestuff also and then to the collaborative adsorption treatment of other hydrophobic organic pollutants that contained in the waste water to yet there are no patent report.
The content of invention
The purpose of this invention is to provide a kind of method of removing cationic dyestuff and hydrophobic organic pollutant in the waste water simultaneously.
Specific implementation of the present invention is:
1) 50～200 order calcium bases, sodium base or acidifying wilkinite and cats product dry, that pulverize are dropped in the pending waste water, wilkinite original soil consumption and pending waste water from dyestuff amount mass ratio are 1: 100～1: 10000, and the cats product consumption is 0.1～5% mass ratio of wilkinite cation exchange capacity (CEC);
2) stirred 30-240 minute under the surrounding enviroment temperature;
3) after static 30～120 minutes with soil-water solid-liquid separation, waste water from dyestuff qualified discharge.
Above-mentioned 1) wilkinite original soil consumption and pending waste water from dyestuff amount mass ratio are preferred 1: 200～1: 5000 in.
The present invention to the purification mechanism of waste water from dyestuff is:
Because bentonitic strong cation exchange under the low quantity of surfactant inducing action, can be adsorbed the cationic dyestuff of removing in the waste water quickly and efficiently; Bentonite bed spacing behind the absorption cationic dyestuff increases, its interlamination region environment changes hydrophobicity into by wetting ability simultaneously, affinity to hydrophobic organic compound strengthens, and then can adsorb materials such as simultaneous a large amount of benzene classes of removing in the waste water from dyestuff, naphthalene class, phenols, amine, thereby realize removing simultaneously cationic dyestuff and hydrophobic organic pollutant in the waste water.
Advantage of the present invention is: by utilizing bentonitic cation exchange property, not only can adsorb and remove cationic dyes in the waste water from dyestuff, simultaneously, wilkinite surface hydrophobicity behind the absorption cationic dyestuff strengthens, its affinity to the other kinds hydrophobic organic pollutants such as intermediate in the waste water from dyestuff is strengthened, reach the effect that multiple pollutent adsorbs removal simultaneously.Add a spot of cats product and have the enhancing adsorption, the method of merely cationic dyes in the waste water from dyestuff or organic pollutant being removed as target contaminant respectively in the conventional art, this technology has embodied the theory of " treatment of wastes with processes of wastes against one another ", has realized the effect that the multiple pollutent of a kind of sorbent material is removed simultaneously.This invention institute's natural mineral that adopts is cheap, and reserves are abundant, be used for dye wastewater treatment and have that flow process is simple, enforcement conveniently, cost is low, be easy to characteristics such as popularization.
Embodiment
Further specify the present invention below by embodiment, but do not constitute restriction invention.
Embodiment 1: the wilkinite of absorption cationic dyestuff adsorbs beta naphthal again
With Viola crystallina, methylene blue and malachite green is the cationic dyestuff representative, and beta naphthal is the hydrophobic organic pollutant representative.
With the cats product cetyl trimethylammonium bromide of dry, as to pulverize 100 mesh sieves wilkinite original soil 2g and 2% cation exchange capacity be added to 100ml concentration be respectively 5200,4800 and the solution of Viola crystallina, methylene blue and the malachite green of 4640mg/L in, stir and get supernatant liquor after 60 minutes and survey its concentration.The result show wilkinite to the clearance of Viola crystallina, methylene blue and malachite green all more than 99.3%.
With the wilkinite behind the above-mentioned absorption cationic dyestuff, joining 100ml concentration is the beta naphthal solution of 40mg/L, stirs to get supernatant liquor after 60 minutes and survey its concentration.The result shows that the wilkinite behind absorption Viola crystallina, methylene blue and the malachite green is respectively 92.6%, 88.7% and 80.1% to the clearance of beta naphthal.
Embodiment 2: the wilkinite behind the absorption methylene blue is adsorb organic compound again
With the methylene blue is the cationic dyestuff representative, and beta naphthal, naphthalene and naphthalidine are the hydrophobic organic pollutant representative.
With dry, pulverized the wilkinite original soil 2g of 100 mesh sieves and the cats product cetyl trimethylammonium bromide of 3% cation exchange capacity is added in the methylene blue solution that 100ml concentration is 4800mg/L, stir and get supernatant liquor after 100 minutes and survey its concentration.The result shows that the clearance of wilkinite original soil methylene blue is more than 99.8%.In the wilkinite behind above-mentioned absorption cationic dyestuff, add the naphthalidine solution that beta naphthal that 100ml concentration is 40mg/L, naphthalene that concentration is 12mg/L and concentration are 40mg/L respectively, stir and get supernatant liquor after 100 minutes and survey its concentration.The result shows that the wilkinite behind the absorption methylene blue is respectively 91.2%, 94.3% and 82.6% to the clearance of beta naphthal, naphthalene and naphthalidine.
Embodiment 3: adsorb cationic dyestuff and beta naphthal simultaneously
With Viola crystallina, methylene blue and malachite green is the cationic dyestuff representative, and beta naphthal is the hydrophobic organic pollutant representative.
The cats product cetyl trimethylammonium bromide of dry, as to pulverize 100 mesh sieves wilkinite original soil 2g and 3% cation exchange capacity is added in the beta naphthal mixing solutions of Viola crystallina that 200ml concentration is 2600mg/L and 20mg/L, gets supernatant liquor behind the stirring 2h and survey its concentration respectively.The result shows, adsorbs clearance to Viola crystallina simultaneously more than 99.9%, is 95.4% to the clearance of beta naphthal.
Selecting concentration is the methylene blue of 2400mg/L and the beta naphthal mixing solutions of 20mg/L, repeats above-mentioned experiment.The result shows, adsorbs clearance to methylene blue simultaneously more than 99.9%, and the clearance of beta naphthal is reached 91.6%.
Selecting concentration is the malachite green of 2320mg/L and the beta naphthal mixing solutions of 20mg/L, repeats above-mentioned experiment.The result shows, adsorbs clearance to malachite green simultaneously more than 99.9%, and the clearance of beta naphthal is reached 90.0%.
Embodiment 4: adsorb malachite green and organism simultaneously
With the malachite green is the cationic dyestuff representative, and naphthalene and naphthalidine are the hydrophobic organic pollutant representative.
With dry, as to pulverize 100 mesh sieves wilkinite original soil 2g and 3% cation exchange capacity the cats product cetyl trimethylammonium bromide be added to respectively in the naphthalene mixing solutions of malachite green that 200ml concentration is 2320mg/L and 12mg/L, get supernatant liquor behind the stirring 4h and survey its concentration respectively.The result shows, adsorbs clearance to malachite green simultaneously more than 99.9%, and the clearance of naphthalene is reached 93.0%.
Selecting concentration is the malachite green of 2320mg/L and the naphthalidine mixing solutions of 40mg/L, repeats above-mentioned experiment.The result shows, adsorbs clearance to malachite green simultaneously more than 99.9%, and the naphthalidine clearance is reached 87.0%.
Embodiment 5: adsorption column absorption cationic dyestuff and organism
With wilkinite and 3% cation exchange capacity the cats product cetyl trimethylammonium bromide be filled to adsorption column, adding 1000ml concentration is the methylene blue of 2400mg/L and the naphthalidine mixing solutions of 20mg/L, get filtrate and survey its concentration respectively, the result shows that the wilkinite packed column is respectively 99.9% and 86.1% to the clearance of methylene blue and naphthalidine.
Claims (2)
1. remove simultaneously that its feature of method of cationic dyestuff and hydrophobic organic pollutant comprises the following steps: in the waste water for one kind
1) 50～200 order calcium bases, sodium base or acidifying wilkinite and cats product cetyl trimethylammonium bromide dry, that pulverize are dropped in the pending waste water, wilkinite original soil consumption and pending waste water from dyestuff amount mass ratio are 1: 100～1: 10000, and the cats product consumption is 0.1～5% mass ratio of wilkinite cation exchange capacity;
2) stirred 30-240 minute under the surrounding enviroment temperature;
3) after static 30～120 minutes with soil-water solid-liquid separation, waste water from dyestuff qualified discharge.
2. remove the method for cationic dyestuff and hydrophobic organic pollutant in the waste water according to a kind of described in the claim 1 simultaneously, it is characterized in that wilkinite original soil consumption and pending waste water from dyestuff amount mass ratio are 1: 200～1: 5000.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010108756A CN101774664A (en) | 2010-02-04 | 2010-02-04 | Method for removing cationic dye and hydrophobic organic pollutants in waste water simultaneously |
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| CN201010108756A CN101774664A (en) | 2010-02-04 | 2010-02-04 | Method for removing cationic dye and hydrophobic organic pollutants in waste water simultaneously |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671617A (en) * | 2012-05-02 | 2012-09-19 | 上海绿帝环保科技有限公司 | Preparation method of material for adsorption of non-biodegradable organic pollutant |
| CN103556505A (en) * | 2013-10-22 | 2014-02-05 | 常熟市启弘纺织实业有限公司 | Preparation method of dyeing assistant |
| CN105601057A (en) * | 2016-03-22 | 2016-05-25 | 湖南大学 | Method for treating methylene blue-containing wastewater |
| CN107042088A (en) * | 2017-03-27 | 2017-08-15 | 孙娜 | Preparation method for the modified bentonite adsorbent of waste water decoloration of cation dyes |
| CN109794222A (en) * | 2019-01-07 | 2019-05-24 | 广西大学 | A kind of organic decoration Magnetic Bentonite and its preparation method and application |
| CN113680318A (en) * | 2021-08-24 | 2021-11-23 | 中建三局绿色产业投资有限公司 | Preparation method of granular bentonite adsorbent |
-
2010
- 2010-02-04 CN CN201010108756A patent/CN101774664A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671617A (en) * | 2012-05-02 | 2012-09-19 | 上海绿帝环保科技有限公司 | Preparation method of material for adsorption of non-biodegradable organic pollutant |
| CN103556505A (en) * | 2013-10-22 | 2014-02-05 | 常熟市启弘纺织实业有限公司 | Preparation method of dyeing assistant |
| CN103556505B (en) * | 2013-10-22 | 2016-04-27 | 常熟市启弘纺织实业有限公司 | The preparation method of dyeing assistant |
| CN105601057A (en) * | 2016-03-22 | 2016-05-25 | 湖南大学 | Method for treating methylene blue-containing wastewater |
| CN105601057B (en) * | 2016-03-22 | 2019-01-29 | 湖南大学 | The method for handling wastewater containing methylene blue |
| CN107042088A (en) * | 2017-03-27 | 2017-08-15 | 孙娜 | Preparation method for the modified bentonite adsorbent of waste water decoloration of cation dyes |
| CN107042088B (en) * | 2017-03-27 | 2019-07-05 | 孙娜 | The preparation method of modified bentonite adsorbent for waste water decoloration of cation dyes |
| CN109794222A (en) * | 2019-01-07 | 2019-05-24 | 广西大学 | A kind of organic decoration Magnetic Bentonite and its preparation method and application |
| CN113680318A (en) * | 2021-08-24 | 2021-11-23 | 中建三局绿色产业投资有限公司 | Preparation method of granular bentonite adsorbent |
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Application publication date: 20100714 |