CN104226261A - Preparation method for modified bentonite for decoloring waste water of reactive brilliant red dye - Google Patents
Preparation method for modified bentonite for decoloring waste water of reactive brilliant red dye Download PDFInfo
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- CN104226261A CN104226261A CN201410492631.XA CN201410492631A CN104226261A CN 104226261 A CN104226261 A CN 104226261A CN 201410492631 A CN201410492631 A CN 201410492631A CN 104226261 A CN104226261 A CN 104226261A
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- bentonite
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Abstract
The invention relates to a preparation method for modified bentonite, belongs to the field of treatment methods for the waste water of dye, and particularly provides a decoloring treatment method. The preparation method for the modified bentonite for decoloring the waste water of the reactive brilliant red dye comprises the following steps: taking dried, crushed and screened bentonite, putting the dried, crushed and screened bentonite into a container with a plug, successively adding inorganic modifiers and organic modifiers, stirring the mixture of the bentonite, the inorganic modifiers and the organic modifiers for 2 hours at the constant temperature of 60 DEG C, filtering products, repeatedly cleaning the filtered products with distilled water, sucking and filtering the cleaned products, baking the filtered products, keeping the baked products at the constant temperature of 110 DEG C for one hour, and grinding and screening the dried and activated products to obtain the modified bentonite. The preparation method disclosed by the invention has the characteristics of simple technology, strong maneuverability, low cost and the like, and the preparation method is suitable for industrialized production. Through determination, the decoloring rate of the prepared modified bentonite for the waste water of the reactive brilliant red dye is 91.8-93.2% which is slightly higher than the decoloring rate 85-90% of activated carbon, but the use cost of the modified bentonite is below one third of that of the activated carbon.
Description
Technical field
The present invention relates to a kind of method for preparing modified bentonite, belong to dye wastewater treatment especially decoloration treatment method field.
Background technology
Along with people are to the pay attention to day by day of environmental issue, the decolouring of dyeing waste water and the removal of contained organic pollutants are just receiving increasing concern, because dyeing waste water daily output is large, colourity is high, the features such as change of water quality is complicated make it be difficult to carry out conventional treatment, current most of printing and dyeing mills adopt charcoal absorption, but due to active carbon price high, the application of dyeing waste water adsorption bleaching is restricted.Natural minerals montmorillonite not only ore reserve enriches, and cheap (even if montmorillonite after milled 200 orders only 200 yuan/ton), has again good absorption property and be subject to attention both domestic and external.
The clay of bentonite to be a kind of with montmorillonite be main component, there is the layer structure of 2:1 type, the electronegativity produced owing to there being crystal lattice between layers, thus the bentonite adsorption performance having reasonable absorption property modified to cation organic matter is better, a lot of about the report of its organic quaternary ammonium salt at present, but the cost of organic quaternary ammonium salt is high, the bentonite use cost causing organic quaternary ammonium salt modified is higher, is restricted in the application of dyeing waste water adsorption bleaching.
Therefore, study the modified alta-mud that a kind of absorption property is good, effective to decoloring dye waste water and cost is low and there is very high application prospect.
Summary of the invention
The present invention aims to provide the method for preparing modified bentonite that a kind of absorption property is good, effective to decoloring dye waste water and cost is low.
Method for preparing modified bentonite for Active Red Dye waste water decoloring of the present invention, comprises the following steps:
Get drying, pulverize and sieve after bentonite in tool plug container, add inorganic modifier and organic modifiers successively, 2h is stirred in 60 DEG C of constant temperature, product after filtration, repeatedly wash with distilled water, then suction filtration post-drying, in 110 DEG C of constant temperature 1h, product grinding after drying, activation is sieved, and obtains modified alta-mud.
Preferably, the consumption of bentonite of the present invention and inorganic modifier and organic modifiers is add 10 grams of inorganic modifier and 1 gram of organic modifiers in every 100 grams of bentonites.
Preferred, inorganic modifier of the present invention is aluminum sulfate, and organic modifiers is softex kw.
Preferred further, distilled water washing of the present invention, until sulfate radical-free ion exists, is checked without white opacity with barium chloride solution.
In preparation method of the present invention, along with the increase of organic quaternary ammonium salt content, adsorption capacity after bentonite modified improves greatly, the percent of decolourization of Active Red Dye also improves greatly, this is because surfactant concentration is larger, the organic cation increased number that ion-exchange occurs between bentonite bed can be entered into, make the layer structure support of clay large, thus there is larger cation exchange capacity (CEC), absorption property is well improved.But consider modifier Cost Problems in practical application, softex kw cost ratio aluminum sulfate exceeds about ten times, for this reason, adopt in preparation method of the present invention and add the consumption that inorganic modifier aluminum sulfate reduces organic modifiers softex kw, but absorption property and decoloration performance not only do not reduce and raise on the contrary.
Preparation method of the present invention, there is technique simple, workable, cost is low, be applicable to the features such as suitability for industrialized production, after measured, prepared modified alta-mud to Active Red Dye decolorization rate of wastewater at 91.8-93.2%, slightly high compared with the percent of decolourization 85-90% of active carbon, but use cost is only less than 1/3rd of active carbon.
Detailed description of the invention
Embodiment one:
By adding 10 grams of aluminum sulfate and 1 gram of softex kw calculating in every 100 grams of bentonites, take bentonite 1000 grams, 100 grams, aluminum sulfate, softex kw 10g.After bentonite drying and crushing is sieved, be put in tool plug container, add inorganic modifier aluminum sulfate and organic modifiers softex kw successively, stir 2h in 60 DEG C of constant temperature, product after filtration, repeatedly wash with distilled water, until sulfate radical-free ion exists (with barium chloride solution inspection without white opacity), then suction filtration post-drying, in 110 DEG C of constant temperature 1h, product grinding after drying, activation is sieved, and obtains modified alta-mud.
Embodiment two: the adsorption experiment of Active Red Dye waste water
Accurately take 0.100g modified alta-mud in tool plug conical flask, add the reactive brilliant red x-3b dyestuff that 100ml concentration is 20mg/L, vibrate under airtight rear constant temperature 1h, after high speed centrifugation 15min, get the content that supernatant liquor surveys residual dye, thus calculate the clearance of different modified alta-mud to reactive brilliant red x-3b.As shown in Table-1:
The clearance of table-1 pair of reactive brilliant red x-3b
。
Claims (4)
1., for the method for preparing modified bentonite of Active Red Dye waste water decoloring, comprise the following steps:
Get drying, pulverize and sieve after bentonite in tool plug container, add inorganic modifier and organic modifiers successively, 2h is stirred in 60 DEG C of constant temperature, product after filtration, repeatedly wash with distilled water, then suction filtration post-drying, in 110 DEG C of constant temperature 1h, product grinding after drying, activation is sieved, and obtains modified alta-mud.
2., as claimed in claim 1 for the method for preparing modified bentonite of Active Red Dye waste water decoloring, it is characterized in that the consumption of described bentonite and inorganic modifier and organic modifiers is add 10 grams of inorganic modifier and 1 gram of organic modifiers in every 100 grams of bentonites.
3., as claimed in claim 1 for the method for preparing modified bentonite of Active Red Dye waste water decoloring, it is characterized in that described inorganic modifier is aluminum sulfate, organic modifiers is softex kw.
4., as claimed in claim 1 for the method for preparing modified bentonite of Active Red Dye waste water decoloring, it is characterized in that described distilled water washing is until sulfate radical-free ion exists, with barium chloride solution inspection without white opacity.
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| CN201410492631.XA CN104226261A (en) | 2014-09-24 | 2014-09-24 | Preparation method for modified bentonite for decoloring waste water of reactive brilliant red dye |
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| CN201410492631.XA CN104226261A (en) | 2014-09-24 | 2014-09-24 | Preparation method for modified bentonite for decoloring waste water of reactive brilliant red dye |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597668A (en) * | 2015-09-23 | 2016-05-25 | 辽宁石油化工大学 | Preparation method and application of modified zeolite |
| CN106111068A (en) * | 2016-07-29 | 2016-11-16 | 卢挺 | Preparation method for the organically-modified silicic acid magnalium that waste water processes |
| CN106902743A (en) * | 2017-02-10 | 2017-06-30 | 常涛 | A kind of preparation method of water treatment agent and application |
| CN107042088A (en) * | 2017-03-27 | 2017-08-15 | 孙娜 | Preparation method for the modified bentonite adsorbent of waste water decoloration of cation dyes |
| CN107096505A (en) * | 2017-05-22 | 2017-08-29 | 句容康泰膨润土有限公司 | A kind of magnetic coupling bentonite and preparation method thereof |
| CN109174064A (en) * | 2018-10-19 | 2019-01-11 | 华北水利水电大学 | The preparation of bentonite-moringa seeds albumen composite adsorbing material and its application method |
| CN110898828A (en) * | 2019-12-03 | 2020-03-24 | 重庆科技学院 | Preparation method of photocatalyst for degrading organic matters in fracturing flow-back fluid of oil and gas field |
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2014
- 2014-09-24 CN CN201410492631.XA patent/CN104226261A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597668A (en) * | 2015-09-23 | 2016-05-25 | 辽宁石油化工大学 | Preparation method and application of modified zeolite |
| CN105597668B (en) * | 2015-09-23 | 2018-07-10 | 辽宁石油化工大学 | A kind of preparation method and application of modified zeolite |
| CN106111068A (en) * | 2016-07-29 | 2016-11-16 | 卢挺 | Preparation method for the organically-modified silicic acid magnalium that waste water processes |
| CN106902743A (en) * | 2017-02-10 | 2017-06-30 | 常涛 | A kind of preparation method of water treatment agent and application |
| 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 |
| CN107096505A (en) * | 2017-05-22 | 2017-08-29 | 句容康泰膨润土有限公司 | A kind of magnetic coupling bentonite and preparation method thereof |
| CN109174064A (en) * | 2018-10-19 | 2019-01-11 | 华北水利水电大学 | The preparation of bentonite-moringa seeds albumen composite adsorbing material and its application method |
| CN110898828A (en) * | 2019-12-03 | 2020-03-24 | 重庆科技学院 | Preparation method of photocatalyst for degrading organic matters in fracturing flow-back fluid of oil and gas field |
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Application publication date: 20141224 |