CN103055817A - Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof - Google Patents
Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof Download PDFInfo
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- CN103055817A CN103055817A CN2013100047018A CN201310004701A CN103055817A CN 103055817 A CN103055817 A CN 103055817A CN 2013100047018 A CN2013100047018 A CN 2013100047018A CN 201310004701 A CN201310004701 A CN 201310004701A CN 103055817 A CN103055817 A CN 103055817A
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Abstract
The invention belongs to furfural residue utilization and chemical nickel plating wastewater processing, and provides a furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and a preparation method thereof. The absorbent is characterized in that a certain amount of diacetyldioxime is modified and loaded on the surface of furfural residue powder, and the obtained material is used in removing nickel from chemical nickel plating wastewater. The preparation method comprises the steps that: furfural residue is washed, bake-dried, and crushed; the furfural residue is immersed in an ethanol solution of diacetyldioxime; ultrasonic dispersion is carried out, and solvent is removed by heating and stirring; and drying and aging are carried out for 24h under a temperature of 60 DEG C, such that the furfural residue adsorbent modified and loaded with diacetyldioxime is obtained. The absorbent is used in nickel absorption, and provides advantages of good selectivity, good interference resistance, and high absorption capacity. The absorbent is especially suitable for absorption and cleansing of nickel in chemical nickel plating wastewater containing large amount of complexing agent. After cleansing, nickel content satisfies an electroplating pollutant emission standard of our nation. Used absorbent can be regenerated by using acid, and nickel salt can be recovered.
Description
Technical field
The invention belongs to solid waste resource utilization and water-treatment technology field, relate to the utilization of furfural dregs and the processing of industrial wastewater.Specifically, be that it is a kind of selectively good to obtain after furfural dregs is modified the load dimethylglyoxime, the sorbing material of the strong nickel of antijamming capability is used for Adsorption chemical nickle-plating wastewater nickel.
Technical background
Chemical nickel plating is a kind of without extraneous electricity, by the method for plating bath selfoxidation-reduction reaction at the surface of metallic article deposition one deck nickel, is used for improving corrosion stability and wearability, increases gloss and attractive in appearance.Nickel chemical plating technology is simple, and is practical, and coating even compact, hardness are high, chemical stability is good, have been widely used in the fields such as electronics, five metals, machinery and chemical industry.But, can produce a large amount of nickel-containing waste waters in process of production.If these direct discharging of waste water pollute the environment, it also is the serious waste of precious resources.Because in chemical nickel plating, in order to improve chemical deposit quality and solution stability, need to add a large amount of citric acids, malic acid, lactic acid, tartaric acid and acetic acid etc. in the plating bath and play the reagent of complexings, stable, light, acceleration and cushioning effect, these materials and nickel ion have stronger complexing, form easily stable complex compound, this has brought very large difficulty for the processing of nickel in the chemical nickle-plating wastewater.The method of nickel has the methods such as chemical precipitation method, catalytic reduction method, ion-exchange in the normal processing chemical nickle-plating wastewater that adopts at present, but a large amount of chemical reagent of the consumption that has in these methods for subsequent treatment is brought difficulty, also can cause secondary pollution; The cost that has is high; The disposal ability that has is limited, and nickel can not qualified discharge after processing, and also needs to unite the nearly step advanced treating of other processing means.Membrane separation technique comprised the extensive use in the degree of depth of water is evolved such as counter-infiltration, membrane extraction, electrodialysis in recent years, processed but be used for chemical nickle-plating wastewater, existed at present equipment investment large, the life-span of film is short, the problems such as high cost, also infeasible economically, be difficult to promote the use of.
Furfural dregs is the waste residue that produces in the furfurol industry production process, in China, and annual nearly 3,000 ten thousand tons of the furfural dregs that produces, at present, most of furfural enterprise as boiler oil, this is not only the waste of resource furfural dregs, and generation contains sour waste gas, contaminated environment in combustion process.
Summary of the invention
For the antijamming capability that improves the furfural dregs adsorbent and selective, to be applicable to process the nickel in the chemical nickle-plating wastewater, the invention provides a kind of furfural dregs base adsorbent and preparation method for removing chemical nickle-plating wastewater nickel, the method is dimethylglyoxime to be modified be carried on the furfural dregs, and the adsorbent of preparation furfural dregs base nickel can be used for the removal of nickel in the chemical nickle-plating wastewater.
The technical scheme that adopts is:
Be used for removing the furfural dregs base adsorbent of chemical nickle-plating wastewater nickel, it is characterized in that: modify a certain amount of dimethylglyoxime in the load at the furfural dregs powder surface, be used for the removal of chemical nickle-plating wastewater nickel, described dimethylglyoxime
Load capacity is: furfural dregs and dimethylglyoxime mass ratio are 2:1---between the 5:1.
Be used for the preparation method of the furfural dregs base adsorbent of removal chemical nickle-plating wastewater nickel, it is characterized in that comprising the steps:
Step 1: furfural dregs is washed to neutrality, and oven dry is pulverized, and crosses 80 mesh sieves, and is for subsequent use;
Step 2: be m in mass ratio
Furfural dregs: m
DimethylglyoximeFor 2:1-5:1 ratio takes by weighing dimethylglyoxime, be dissolved in the 45-55 absolute ethyl alcohol doubly;
Step 3: the furfural dregs powder of step 1 preparation is immersed in the dimethylglyoxime ethanolic solution of step 2 preparation, sonic oscillation disperses 8-15min, 50-70 ℃ of stirring in water bath is closely dried to ethanol evaporation, 50-70 ℃ of drying also is incubated aging 24h, be cooled to room temperature, obtain can be used for removing the furfural dregs base adsorbent of nickel in the chemical nickle-plating wastewater.
The present invention has selective height, and antijamming capability is strong, and cost is low, and good purification is regenerated and reclaimed the advantages such as simple.
The specific embodiment
Embodiment 1: the furfural dregs base adsorbent preparation method who is used for removing chemical nickle-plating wastewater nickel
Step 1, furfural dregs is washed to nearly neutrality, oven dry is pulverized, and crosses 80 mesh sieves, and it is for subsequent use to take by weighing 50g.
Step 2, take by weighing the 10g dimethylglyoxime and be dissolved in the 500mL ethanol, the furfural dregs powder that step 1 is obtained is immersed in wherein, and sonic oscillation disperses 10min, and 60 ℃ of insulated and stirred make ethanol evaporate near doing, 60 ℃ of dryings are incubated aging 24h, namely obtain the furfural dregs base adsorbent of dimethylglyoxime in the load.
Embodiment 2: the furfural dregs base adsorbent is to the Adsorption of nickel in the chemical nickle-plating wastewater
Get the chemical nickle-plating wastewater 500mL that certain factory's nickel content is 49.81mg/L, be 8-10 with the NaOH adjust pH, get adsorbent 2 g of embodiment 1 preparation, join in this waste water, stirring and adsorbing is 30 minutes under room temperature, leaves standstill suction filtration 1 hour, the concentration of surveying nickel in the filtrate with Atomic absorption is not for detecting, and meets the discharge standard that the nickel that pollutant emission standard (GB 21900-2008) stipulates is electroplated by China fully.The clearance of nickel is 100 %.
Embodiment 3: the regeneration of adsorbent and the recovery of nickel
Adsorbent with after using among the embodiment 2 is immersed in the sulfuric acid solution of 0.5moL/L, stirs, and soaks 10min, suction filtration, and filtrate heating evaporation condensing crystallizing goes out nickelous sulfate.Adsorbent is washed to nearly neutrality, and regeneration is namely finished in oven dry.
Claims (3)
1. be used for removing the furfural dregs base adsorbent of chemical nickle-plating wastewater nickel, it is characterized in that: modify a certain amount of dimethylglyoxime in the load at the furfural dregs powder surface, be used for the removal of chemical nickle-plating wastewater nickel.
2. the furfural dregs base adsorbent for removing chemical nickle-plating wastewater nickel according to claim 1, it is characterized in that the load capacity of described dimethylglyoxime is: furfural dregs and dimethylglyoxime mass ratio are 2:1---between the 5:1.
3. be used for the preparation method of the furfural dregs base adsorbent of removal chemical nickle-plating wastewater nickel, it is characterized in that comprising the steps:
Step 1: furfural dregs is washed to neutrality, and oven dry is pulverized, and crosses 80 mesh sieves, and is for subsequent use;
Step 2: be m in mass ratio
Furfural dregs: m
DimethylglyoximeFor 2:1-5:1 ratio takes by weighing dimethylglyoxime, be dissolved in the 45-55 absolute ethyl alcohol doubly;
Step 3: the furfural dregs powder of step 1 preparation is immersed in the dimethylglyoxime ethanolic solution of step 2 preparation, sonic oscillation disperses 8-15min, 50-70 ℃ of stirring in water bath is closely dried to ethanol evaporation, 50-70 ℃ of drying also is incubated aging 24h, be cooled to room temperature, obtain can be used for removing the furfural dregs base adsorbent of nickel in the chemical nickle-plating wastewater.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100047018A CN103055817A (en) | 2013-01-08 | 2013-01-08 | Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100047018A CN103055817A (en) | 2013-01-08 | 2013-01-08 | Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof |
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| CN103055817A true CN103055817A (en) | 2013-04-24 |
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| CN2013100047018A Pending CN103055817A (en) | 2013-01-08 | 2013-01-08 | Furfural-residue-based adsorbent used for removing nickel from chemical nickel plating wastewater, and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174325A (en) * | 2015-09-28 | 2015-12-23 | 江苏振宇环保科技有限公司 | Method for preparing furfural wastewater treating agent by means of furfural residues |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912767A (en) * | 2010-08-31 | 2010-12-15 | 沈阳理工大学 | Method for preparing modified furfural residue heavy metal adsorbent |
-
2013
- 2013-01-08 CN CN2013100047018A patent/CN103055817A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912767A (en) * | 2010-08-31 | 2010-12-15 | 沈阳理工大学 | Method for preparing modified furfural residue heavy metal adsorbent |
Non-Patent Citations (3)
| Title |
|---|
| 宋恩军 等: ""改性聚酰胺负载丁二肟吸附富集原子吸收光谱法测定水中镍"", 《广东微量元素科学》, vol. 15, no. 11, 31 December 2008 (2008-12-31), pages 54 - 56 * |
| 张东 等: ""经丁二酮肟修饰的改性皂土对废水中镍的吸附"", 《中国环境科学》, vol. 29, no. 7, 31 December 2009 (2009-12-31), pages 713 - 717 * |
| 高俊杰 等: "（"活性炭负载丁二肟分离富集原子吸收法测定水中镍"", 《广东微量元素科学》, vol. 12, no. 6, 31 December 2005 (2005-12-31) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174325A (en) * | 2015-09-28 | 2015-12-23 | 江苏振宇环保科技有限公司 | Method for preparing furfural wastewater treating agent by means of furfural residues |
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Application publication date: 20130424 |