CN101503229A - Method for treating organic wastewater by using ferrite as adsorbing agent - Google Patents
Method for treating organic wastewater by using ferrite as adsorbing agent Download PDFInfo
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- CN101503229A CN101503229A CNA200910071515XA CN200910071515A CN101503229A CN 101503229 A CN101503229 A CN 101503229A CN A200910071515X A CNA200910071515X A CN A200910071515XA CN 200910071515 A CN200910071515 A CN 200910071515A CN 101503229 A CN101503229 A CN 101503229A
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Abstract
The invention provides a method for treating organic wastewater by using ferrite as adsorbent, which is as follows: (1) methylene blue with the concentration of 6.5mg/L-7mg/L dissolves 100ml of colored dye waste water; (2) the Ph of waste water liquid is regulated to be 2.5-5.5; (3) the weighted ferrite is added into the solution, the volume of addition is 0.20 g/L-10g/L, and agitation treating is carried out for 20 minutes to 16 hours; (4) when methylene blue is decolorized and balanced, magnetic is used for separating ferrite, and absolute ethyl alcohol is used for washing generated ferrite adsorbent. Compared with the traditional method, the method has good treatment effect for dye waste water, high absorbance and high decolorization ratio. The ferrite has stronger magnetic, can be recycled and reused, has low cost, environmental protection and energy saving, is easy to be operated, standards a chance for being applied to the colored waste water treatment.
Description
(1) technical field
What the present invention relates to is a kind of treatment process of organic waste water, and the mesoporous ferrite of specifically a kind of usefulness is made sorbent material, realizes the method for coloured decoloring dye waste water.
(2) background technology
Textile industry is one of important industry of China, but the production of a large amount of dyestuffs and use can produce and contain organic waste water in the textile industry, bring severe contamination to environment.The processing difficult problem of organic waste water is: the organic content height, and hard-degraded substance concentration height, color is dark, colourity is big, suspended substance is many, water quality, the water yield change greatly, and biodegradability is poor, contains the microtoxicity material.Wherein making decolorizing printing and dyeing waste water is one major issue of processing links.Therefore, the research of decoloring method becomes the important topic that treatment of dyeing and printing is handled.As the dyestuff that dispersed dye, vat dyes, thioxine dyes, ice dyestuff and molecular weight are bigger, can adopt the Coagulation Method processing of decolouring for part water-soluble dye wastewater in the dyeing waste water.But for the strong small molecular weight water-soluble dye of wetting ability, because of its wetting ability is difficult to by force directly separate from waste water.At present this class dyestuff is adopted the processing of decolouring of chemical oxidization method, absorption method or biochemical process mostly.What use was more in the absorption method is activated carbon, still, activated carbon treatment waste water cost height, recycle rate variance, undesirable to the dye wastewater treatment effect of high density, these problems have limited its application.Therefore, exploitation efficient and cheap and reproducible sorbent material become the important subject of dye wastewater treatment using decolouring.
The application of ferrospinel and research have had the history of decades, and its application now has been not limited to soft magnetism and permanent magnet material, also is applied in sophisticated technology, as aspects such as radar, microwave (ultra-high frequency) multiplex communication, remote controls.Aspect water treatment, because ferrospinel has good magnetic and chemical stability, it is carrier with the ferrite that report has been arranged, and other non-magnetic semiconductor catalysts in the load utilize the convenient recovery of its magnetic, recycle.But supported catalyst technology comparatively after complexity and the load magnetic reduce.
(3) summary of the invention
The object of the present invention is to provide a kind of percent of decolourization height, adsorptive capacity is big, recoverable regeneration recycling, and cost is low, environmental protection and energy saving, the ferrite of easy handling is the method for sorbent treatment organic waste water.
The object of the present invention is achieved like this:
1) gets the molten 100ml of the blue coloured waste water from dyestuff of methyne that concentration is 6.5mg/L-7mg/L;
2) pH=2.5-5.5 of adjusting exhausted water;
3) ferrite that weighs up is added in the solution, addition is 0.20g/L-10g/L, stir process 20 minutes-16 hours;
When 4) the methyne orchid is decoloured balance, also use absolute ethanol washing remelted pig iron oxysome sorbent material with magnet separation of iron oxysome.
The present invention can also comprise:
Described ferrite is mesoporous spinelle manganese ferrite.
The present invention directly with mesoporous ferrite as sorbent material, coloured waste water from dyestuff of treatment of simulated (methyne blue solution).Because ferrite has stronger magnetic, handle coloured waste water from dyestuff with this method after, can realize ferritic separation and reclaiming easily with magnet.Use mesoporous ferrite all very high as the percent of decolourization and the adsorptive capacity of sorbent material, reusable sorbent material still has very high adsorption activity, has realized the efficient recycling of resource, is a kind of control useless and energy-conservation effective way.
The present invention adopts mesoporous ferrite as the coloured waste water from dyestuff of sorbent treatment mimic (the blue solution of methyne).The present invention compares with traditional method, and waste water from dyestuff is had treatment effect preferably, and adsorptive capacity is big, the percent of decolourization height.Stronger magnetic is arranged, recyclable regeneration recycling, cost is low, environmental protection and energy saving, easy handling gets a good chance of being applied in the colorful wastewater processing.
(4) description of drawings
Fig. 1 is the room temperature magnetic hysteresis loop of embodiment one used mesoporous Mn ferrite.
Fig. 2 embodiment one concentration of methyne orchid of surveying and the Changing Pattern of percent of decolourization.
When Fig. 3 changes ferritic consumption the Changing Pattern of the blue percent of decolourization of methyne with.
Fig. 4 reclaiming ferrite sorbent material is to the blue decolouring of methyne Changing Pattern.
Fig. 5-A and Fig. 5-B are solution isolating change procedure figure of ferrite under magnet effect (5min) in the embodiment one.
Fig. 6 is the (Fig. 6-A wherein: the solution during adsorption equilibrium of ferrite reclaiming procedure chart in the embodiment one; Fig. 6-B: washing with alcohol is showed the color of methyne orchid again for the first time; Fig. 6-C: the solution after twice of the washing with alcohol).
(5) embodiment
For example the present invention is done in more detail below and describes:
Embodiment one:
1) pipettes the coloured waste water from dyestuff of mimic that concentration is 6.90mg/L (the blue solution of methyne) 100ml;
2) acidity of regulator solution is pH=3.5, and the concentration of methyne orchid in the solution is accurately measured in sampling for the first time from solution;
Begin to stir and timing in mesoporous ferrite (30mg) the adding solution that 3) will weigh up;
4) concentration of methyne orchid in the solution is monitored constantly, investigated its rule over time, only need easily to obtain clarifying liquid to be measured, need not processes such as centrifugal with the ferrite in the magnet separation solution;
When 5) the methyne orchid is decoloured balance, also use absolute ethanol washing reclaiming ferrite sorbent material with magnet separation of iron oxysome.
The present invention adopts mesoporous ferrite as the coloured waste water from dyestuff of sorbent treatment mimic (the blue solution of methyne).The present invention compares with traditional method, and is obvious to the decolouring treatment effect of methyne orchid, adsorptive capacity big (reaching 23mg/g), percent of decolourization height (absorption for the first time can reach 98.03%).The consumption of sorbent material (mesoporous ferrite) directly influences decolorization rate, and percent of decolourization reached for 90% used time and is respectively 20h, 10h, 4h, 20min when consumption was 0.20g/L, 0.3g/L, 0.50g/L and 10g/L.When ferrite sorbent material consumption is 10g/L, only need promptly reaches 92%, 3 hour percent of decolourization in 20 minutes and can reach 99.8%.The magnetic resolution recovering effect of magnetic adsorbent is good, recycles and reuses the rate height, and the adsorptive capacity in when recycling is constant substantially, and rate of adsorption increases.This method cost is low, environmental protection and energy saving, and easy handling is hopeful to be applied to the decolouring processing of colorful wastewater.The optimum acidity of solution is pH=3.5, but also can reach better decolorizing effect when acidity is pH=2.5, pH=4.5 and pH=5.5.
Claims (5)
1, a kind of ferrite is the method for sorbent treatment organic waste water, it is characterized in that:
1) gets the molten 100ml of the blue coloured waste water from dyestuff of methyne that concentration is 6.5mg/L-7mg/L;
2) pH=2.5-5.5 of adjusting exhausted water;
3) ferrite that weighs up is added in the solution, addition is 0.20g/L-10g/L, stir process 20 minutes-16 hours;
When 4) the methyne orchid is decoloured balance, also use absolute ethanol washing remelted pig iron oxysome sorbent material with magnet separation of iron oxysome.
2, ferrite according to claim 1 is the method for sorbent treatment organic waste water, it is characterized in that: described ferrite is mesoporous spinelle manganese ferrite.
3, ferrite according to claim 1 and 2 is the method for sorbent treatment organic waste water, it is characterized in that: pH=3.5.
4, ferrite according to claim 1 and 2 is the method for sorbent treatment organic waste water, it is characterized in that: the ferrite addition is 10g/L, stir process 20 minutes.
5, ferrite according to claim 3 is the method for sorbent treatment organic waste water, it is characterized in that: the ferrite addition is 10g/L, stir process 20 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200910071515XA CN101503229A (en) | 2009-03-11 | 2009-03-11 | Method for treating organic wastewater by using ferrite as adsorbing agent |
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| CNA200910071515XA CN101503229A (en) | 2009-03-11 | 2009-03-11 | Method for treating organic wastewater by using ferrite as adsorbing agent |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068995A (en) * | 2011-01-11 | 2011-05-25 | 河北师范大学 | Preparation method of nano magnetic core-shell catalyst for degrading dye wastewater |
| CN103979630A (en) * | 2014-05-26 | 2014-08-13 | 南京理工大学 | Application of ferrite |
| CN104138745A (en) * | 2014-08-19 | 2014-11-12 | 中国科学院生态环境研究中心 | Preparation method of biological carbon adsorbent for repairing organic pollution |
| CN105859014A (en) * | 2016-05-25 | 2016-08-17 | 安徽普氏生态环境工程有限公司 | Magnetic separation special industry water treatment device |
| CN105906165A (en) * | 2016-06-23 | 2016-08-31 | 安徽美自然环境科技有限公司 | High-efficiency sewage treatment system |
| CN107285440A (en) * | 2017-07-04 | 2017-10-24 | 中国科学院生态环境研究中心 | A kind of method that the waste water containing heavy-metal stain is handled based on coprecipitation reaction in situ |
| CN111330578A (en) * | 2020-03-23 | 2020-06-26 | 广东工业大学 | Preparation method and application of heavy metal-containing ferrite catalyst |
| CN111362422A (en) * | 2020-03-17 | 2020-07-03 | 杭州传一科技有限公司 | Magnetic complex-cyanide lyase composite nano-particles, preparation method and application thereof, and method for treating electroplating wastewater by using magnetic complex-cyanide lyase composite nano-particles |
| CN111607920A (en) * | 2019-02-22 | 2020-09-01 | 香港纺织及成衣研发中心有限公司 | Method and device for decolouring textile materials |
-
2009
- 2009-03-11 CN CNA200910071515XA patent/CN101503229A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068995A (en) * | 2011-01-11 | 2011-05-25 | 河北师范大学 | Preparation method of nano magnetic core-shell catalyst for degrading dye wastewater |
| CN102068995B (en) * | 2011-01-11 | 2012-10-24 | 河北师范大学 | Preparation method of nano magnetic core-shell catalyst for degrading dye wastewater |
| CN103979630A (en) * | 2014-05-26 | 2014-08-13 | 南京理工大学 | Application of ferrite |
| CN104138745A (en) * | 2014-08-19 | 2014-11-12 | 中国科学院生态环境研究中心 | Preparation method of biological carbon adsorbent for repairing organic pollution |
| CN105859014A (en) * | 2016-05-25 | 2016-08-17 | 安徽普氏生态环境工程有限公司 | Magnetic separation special industry water treatment device |
| CN105906165A (en) * | 2016-06-23 | 2016-08-31 | 安徽美自然环境科技有限公司 | High-efficiency sewage treatment system |
| CN107285440A (en) * | 2017-07-04 | 2017-10-24 | 中国科学院生态环境研究中心 | A kind of method that the waste water containing heavy-metal stain is handled based on coprecipitation reaction in situ |
| CN111607920A (en) * | 2019-02-22 | 2020-09-01 | 香港纺织及成衣研发中心有限公司 | Method and device for decolouring textile materials |
| CN111362422A (en) * | 2020-03-17 | 2020-07-03 | 杭州传一科技有限公司 | Magnetic complex-cyanide lyase composite nano-particles, preparation method and application thereof, and method for treating electroplating wastewater by using magnetic complex-cyanide lyase composite nano-particles |
| CN111362422B (en) * | 2020-03-17 | 2022-05-10 | 山东普尼奥水处理科技有限公司 | Magnetic complex-cyanide lyase composite nanoparticle, preparation method and application thereof, and method for treating electroplating wastewater by using magnetic complex-cyanide lyase composite nanoparticle |
| CN111330578A (en) * | 2020-03-23 | 2020-06-26 | 广东工业大学 | Preparation method and application of heavy metal-containing ferrite catalyst |
| CN111330578B (en) * | 2020-03-23 | 2023-07-25 | 广东工业大学 | Preparation method and application of ferrite catalyst containing heavy metal |
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Application publication date: 20090812 |