CN103691409A - Method for modifying bagasse - Google Patents
Method for modifying bagasse Download PDFInfo
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- CN103691409A CN103691409A CN201310746395.5A CN201310746395A CN103691409A CN 103691409 A CN103691409 A CN 103691409A CN 201310746395 A CN201310746395 A CN 201310746395A CN 103691409 A CN103691409 A CN 103691409A
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Abstract
The invention relates to a method for modifying bagasse, and belongs to the field of material science and engineering. According to the method, the bagasse is modified by phosphoric acid, the modified bagasse is used as an adsorbent, relationships between all factors and dye decolorization are comprehensively studied by taking the decolourization rate as an index through a related single factor experiment based on the aspects of the adsorbent feeding amount, the adsorption time, the temperature and the initial pH value of a solution. An effect of treating dye wastewater with the modified bagasse is very good; as the bagasse is a cheap agricultural waste material and is used for treating the dye wastewater, the environmental pollution can be controlled, the comprehensive economic benefit of sugarcane can be increased, and the application prospect is very good. The purpose of the invention is to search for a novel low-value agricultural byproduct with high-efficiency dye removal capability used as the adsorbent for adsorbing the dye wastewater.
Description
Technical field
The invention belongs to Materials Science and Engineering field, the preparation of the peanut shell that is specifically related to retrofit, and determining its method as sorbent treatment waste water from dyestuff.
Background technology
Agricultural wastes are due to its unique chemical composition, and abundant, renewable, low-cost, the high efficiency of originating, is just becoming the excellence selection of dye wastewater treatment using.Research discovery, some have the crops of loose structure or agricultural product castoff to have potential absorption property, can be used as biomass adsorbent for the processing of waste water from dyestuff.
And bagasse is exactly a kind of agricultural wastes of cheapness, originate in various places and amount greatly, himself has loose structure.With bagasse, carry out dye wastewater treatment using, not only can reduce the processing cost of waste water, can utilize used green resource again, for the comprehensive utilization of agricultural wastes provides new approach.
The patent No. is the preparation method that patent documentation that CN102350314A name is called " the waste water from dyestuff adsorbent that a kind of lignocellulosic and organic calcium base montmorillonite are compound " discloses a kind of adsorbent, the method that its defect is to prepare adsorbent is too complicated, and it is higher to prepare the destabilizing factor of adsorbent.
Summary of the invention
For overcoming the defect of above-mentioned patent, the present invention proposes a kind of raw material cheap, the method for absorbing dye waste water simple to operate.
Another object of the present invention is the method that proposes using modified bagasse, and the optimal adsorption condition in the waste water from dyestuff that to determine in concentration be 100mg/L.
A method of modifying for bagasse, carries out according to following step:
(1) first by the bagasse of having collected distilled water wash clean, and put into drying baker and dry full 12 hours, guarantee to dry.
(2) get in the ferrous sulfate heptahydrate solution that the bagasse bubble of oven dry is 30g/L in concentration 24 hours, the later distilled water washes clean of using has been got well in immersion, then put into drying baker, 70 ℃ of temperature adjustments, constant weight is put in oven dry, bagasse needs to pulverize with mixer after immersion, needs with filtering out different-grain diameter after having pulverized, and then puts in drier standby.The bagasse of wherein drying and the mass ratio of ferrous sulfate heptahydrate solution are 1:1.
(3) from drier, take out bagasse, in the phosphoric acid solution that bagasse bubble is 1mol/L in concentration, stir 1h, centrifugal removal liquid part, distilled water immersion washing is dried after picking up for 3 times and draining at 100 ℃, then be warming up to 150 ℃ of heating 1.5h, become using modified bagasse adsorbent after cooling.The bagasse of wherein drying and mass ratio and the volume ratio of phosphoric acid solution are 30:1(g/L).
Described modification bagasse is later as the method for adsorbent absorbing dye waste water, according to following step, carry out: the concentration of direct blue dye wastewater is 100mg/L, while adding 2.0g in the waste water from dyestuff of 100ml, regulate its pH to 2, put it into constant temperature oscillator, vibrate two hours, rotating speed is 120/min, temperature is adjusted to 30 ℃, and 120min can reach the effect of absorbing dye.
The bagasse itself that the present invention adopts has very large surface area and porosity, so inherit and expanded this advantage in modification bagasse later, is more conducive to the processing to waste water from dyestuff.
The present invention has adopted the natural agricultural waste-bagasse of wide material sources, cheap, utilizes used green resource, for the comprehensive utilization of agricultural wastes provides new approach.
the specific embodiment:
Embodiment 1:
The process of described bagasse modification:
(1) first by the bagasse of having collected distilled water wash clean, and put into drying baker and dry full 12 hours, guarantee to dry.
(2) get in the ferrous sulfate heptahydrate solution that bagasse bubble that 30g dries is 30g/L in 1L concentration 24 hours, soak after good and uses distilled water washes clean, then put into drying baker, 70 ℃ of temperature adjustments, constant weight is put in oven dry, afterwards bagasse is pulverized with mixer, then puts in drier standby.
(3) from drier, take out 30g bagasse, in the phosphoric acid solution that bagasse bubble is 1mol/L in 1L concentration, stir 1h, centrifugal removal liquid part, distilled water immersion washing is dried after picking up for 3 times and draining at 100 ℃, then be warming up to 150 ℃ of heating 1.5h, become using modified bagasse adsorbent after cooling.
Embodiment 2:
Modification bagasse is later analyzed adsorption effect as adsorbent from its dosage, the concentration of direct blue dye wastewater is 100mg/L, while adding 2.0g in the waste water from dyestuff of 100ml, regulate its pH to 2, put it into constant temperature oscillator, vibrate two hours, rotating speed is 120/min, temperature is adjusted to 30 ℃, and it is best that adsorption effect reaches, percent of decolourization to 83.0%
| Dosage (g) | 1.0 | 2.0 | 2.5 | 3.0 | 3.5 |
| Percent of decolourization (%) | 75.4 | 83.0 | 81.4 | 79.8 | 80.1 |
Embodiment 3:
Modification bagasse is later analyzed adsorption effect as adsorbent from its adsorption time, the concentration of direct blue dye wastewater is 100mg/L, the bagasse that adds 2.0g in the waste water from dyestuff of 100ml, regulate its pH to 2, put it into constant temperature oscillator, rotating speed 120/min, temperature is adjusted to 30 ℃, in the time of 120min, it is best that adsorption effect reaches, percent of decolourization to 72.9%
| Adsorption time (min) | 60 | 90 | 120 | 150 | 180 |
| Percent of decolourization (%) | 70.5 | 71.6 | 72.9 | 69.7 | 69.1 |
Embodiment 4:
Modification bagasse is later analyzed adsorption effect as adsorbent from its initial pH value, the concentration of direct blue dye wastewater is 100mg/L, the bagasse that adds 2.0g in the waste water from dyestuff of 100ml, puts it into constant temperature oscillator, rotating speed 120/min, temperature is adjusted to 30 ℃, constant temperature oscillation 120min, regulates its pH at 2 o'clock, takes out and carries out Separation of Solid and Liquid with centrifuge, it is best that adsorption effect reaches, percent of decolourization to 81.1%
| PH | 1.0 | 2 | 6 | 8 | 10 |
| Percent of decolourization (%) | 80.7 | 81.1 | 61.2 | 60.3 | 55.9 |
Embodiment 5:
Modification bagasse is later analyzed adsorption effect as adsorbent from its temperature, the concentration of direct blue dye wastewater is 100mg/L, the bagasse that adds 2.0g in the waste water from dyestuff of 100ml, regulate its pH to 2, put it into constant temperature oscillator, rotating speed 120/min, constant temperature oscillation 120min, when temperature is adjusted to 30 ℃, it is best that adsorption effect reaches, percent of decolourization to 74.6%
| Temperature (℃) | 10 | 20 | 30 | 40 | 50 |
| Percent of decolourization (%) | 60.3 | 69.8 | 74.6 | 72.9 | 71.3 |
Claims (2)
1. a method of modifying for bagasse, is characterized in that carrying out according to following step:
(1) first by the bagasse of having collected distilled water wash clean, and put into drying baker and dry full 12 hours, guarantee to dry;
(2) get in the ferrous sulfate heptahydrate solution that the bagasse bubble of oven dry is 30g/L in 1L concentration 24 hours, the later distilled water washes clean of using has been got well in immersion, then put into drying baker, 70 ℃ of temperature adjustments, constant weight is put in oven dry, bagasse needs to pulverize with mixer after immersion, then puts in drier standby; The bagasse of wherein drying and the mass ratio of ferrous sulfate heptahydrate solution are 1:1;
(3) from drier, get bagasse, in the phosphoric acid solution that bagasse bubble is 1mol/L in concentration, stir 1h, centrifugal removal liquid part, after distilled water immersion washing picks up for 3 times and drains, at 100 ℃, dry, be then warming up to 150 ℃ of heating 1.5h, become using modified bagasse adsorbent after cooling; The bagasse of wherein drying and mass ratio and the volume ratio of phosphoric acid solution are 30:1(g/L).
2. modification claimed in claim 1 bagasse is later as the method for adsorbent absorbing dye waste water, according to following step, carry out: the concentration of direct blue dye wastewater is 100mg/L, while adding 2.0g adsorbent in the waste water from dyestuff of 100ml, regulate its pH to 2, put it into constant temperature oscillator, vibrate two hours, rotating speed is 120/min, temperature is adjusted to 30 ℃, and 120min can reach the effect of absorbing dye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746395.5A CN103691409A (en) | 2013-12-31 | 2013-12-31 | Method for modifying bagasse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746395.5A CN103691409A (en) | 2013-12-31 | 2013-12-31 | Method for modifying bagasse |
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| CN103691409A true CN103691409A (en) | 2014-04-02 |
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| CN201310746395.5A Pending CN103691409A (en) | 2013-12-31 | 2013-12-31 | Method for modifying bagasse |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148027A (en) * | 2014-07-18 | 2014-11-19 | 常州大学 | Preparation method for adsorbing material for removing cadmium from slightly-polluted water body |
| CN104707572A (en) * | 2015-03-16 | 2015-06-17 | 江门职业技术学院 | Preparation method of modified waste biomass bagasse |
| CN104815624A (en) * | 2015-04-30 | 2015-08-05 | 广东第二师范学院 | Efficient adsorbent of inorganic modified sugarcane residues and preparation method and application thereof |
| CN105457604A (en) * | 2015-11-30 | 2016-04-06 | 同济大学 | Preparation method of adsorbing material based on natural polysaccharides |
| CN109943556A (en) * | 2019-03-26 | 2019-06-28 | 岭南师范学院 | A kind of preparation method of the insoluble carrier of phosphoric acid modification Pith for cellulose binding domain fusion enzyme immobilization |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492700A (en) * | 2009-03-05 | 2009-07-29 | 王建设 | Intensive processing method for stalk articles or agricultural castoff |
-
2013
- 2013-12-31 CN CN201310746395.5A patent/CN103691409A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492700A (en) * | 2009-03-05 | 2009-07-29 | 王建设 | Intensive processing method for stalk articles or agricultural castoff |
Non-Patent Citations (1)
| Title |
|---|
| 李英柳等: "《改性废弃生物质对直接染料的吸附研究》", 《常州大学学报（自然科学版）》, vol. 25, no. 4, 31 October 2013 (2013-10-31), pages 64 - 68 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148027A (en) * | 2014-07-18 | 2014-11-19 | 常州大学 | Preparation method for adsorbing material for removing cadmium from slightly-polluted water body |
| CN104707572A (en) * | 2015-03-16 | 2015-06-17 | 江门职业技术学院 | Preparation method of modified waste biomass bagasse |
| CN104815624A (en) * | 2015-04-30 | 2015-08-05 | 广东第二师范学院 | Efficient adsorbent of inorganic modified sugarcane residues and preparation method and application thereof |
| CN105457604A (en) * | 2015-11-30 | 2016-04-06 | 同济大学 | Preparation method of adsorbing material based on natural polysaccharides |
| CN109943556A (en) * | 2019-03-26 | 2019-06-28 | 岭南师范学院 | A kind of preparation method of the insoluble carrier of phosphoric acid modification Pith for cellulose binding domain fusion enzyme immobilization |
| CN109943556B (en) * | 2019-03-26 | 2022-11-25 | 岭南师范学院 | Preparation method of phosphoric acid modified sugarcane pith insoluble carrier for cellulose binding domain fusion enzyme immobilization |
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Application publication date: 20140402 |