CN104001473A - Macadamia nut shell/pecan nut shell biocarbon and preparation method thereof - Google Patents
Macadamia nut shell/pecan nut shell biocarbon and preparation method thereof Download PDFInfo
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- CN104001473A CN104001473A CN201410169758.8A CN201410169758A CN104001473A CN 104001473 A CN104001473 A CN 104001473A CN 201410169758 A CN201410169758 A CN 201410169758A CN 104001473 A CN104001473 A CN 104001473A
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Abstract
A macadamia nut shell/pecan nut shell biocarbon is a high-adsorption-performance biocarbon prepared through anaerobic pyrolysis of raw materials comprising macadamia nut shells and pecan nut shells; the macadamia nut shells and the pecan nut shells are crushed and sieved, and are uniformly mixed according to a certain mass ratio, a dilute hydrochloric acid solution is added to immerse the obtained mixture, the mixture is immersed for 24h, a cesium nitrate solution is added, the obtained mixture is uniformly stirred, is sealed, and stands for 12h, and then the mixture is naturally air-dried. The naturally-dried biomass undergoes high-temperature anaerobic pyrolysis to prepare the biocarbon. The biocarbon can effectively reduce the content of Pb, Cr, Zn and Cu in water, and makes the highest removal rates of Pb, Cr, Zn and Cu in water reach 86.8%, 89.3%, 87.1% and 83.9% respectively.
Description
Technical field
The present invention relates to agricultural organic waste recycling field and contaminated environment and administer field, relate in particular to a kind of to heavy metal ion high absorption property biological carbon and preparation method thereof.
Background technology
Charcoal is biological material pyrolysis under anoxic or limited oxygen condition, removes the gentle rear remaining solid matter of oil in living beings.Biological carbon has excellent absorption property, can directly adsorb the polluter in waste water; After using soil, soil physico-chemical property, minimizing nutrient loss, promotion plant growth, absorption fixing soil polluter can also be improved, and the effect of carbon base in soil increasing remittance reduction of discharging can be played.Therefore, charcoal has become one of study hotspot of environment in recent years and field of agricultural sciences.In the preparation of existing biological carbon, prepare biological carbon mainly with single raw material, the research of preparing biological carbon with mixed material is less, especially lacks purposive living beings to be optimized to the research that high absorption property biological carbon is prepared in combination.
Summary of the invention
Another object of the present invention is to provide the preparation method of above-mentioned high absorption property biological carbon.
Another object of the present invention is to provide the using method of above-mentioned high absorption property biological carbon.
Object technical scheme of the present invention is as follows:
A kind of Hawaii shell/green shell biological carbon preparation method is as follows, comprises the following steps:
(1) the Hawaii shell of collection, green shell are pulverized and sieved;
(2) living beings after above-mentioned pulverizing are mixed by a certain percentage, add watery hydrochloric acid to stir and evenly mix, sealing and standing 24h, then add cesium nitrate solution to mix sealing and standing 12h, natural air drying.
(3) above-mentioned processing living beings are placed in to porcelain crucible compacting, cover lid carries out anaerobism pyrolysis; After pyrolytic reaction finishes, after being cooled to room temperature, takes out by crucible.
(4) by the biological carbon of above-mentioned preparation and certain density H
2o
2mix, in oscillator, shake 24h and take out, clean post-drying with distilled water, obtain high absorption property biological carbon.
For improving the absorption property of preparation biological carbon, described biomass material is mixing biomass, and biomass material proportioning is screened, and described Hawaii shell, green shell mass ratio are 1～10:1, more preferably 4:1.
Anaerobic environment and pyrolysis effect when guaranteeing pyrolysis, described biomass material powder particle diameter is 20～100 orders.
Described watery hydrochloric acid concentration is 0.5-2.5mol/L, and cesium nitrate solution concentration is 0.05-1.5mol/L).
400～700 DEG C of described biomass pyrolytic temperature, pyrolysis time 60-300min, programming rate is 5-15 DEG C/min.
Described H
2o
2concentration is 1～10%.
The present invention has following beneficial effect:
The present invention utilizes multiple abandoned biomass mixed pyrolysis preparation to have the biological carbon compared with high absorption property to heavy metal ion, can further promote the recycling of waste material, realizes the object of the treatment of wastes with processes of wastes against one another.Multiple living beings are mixed with to biological carbon, can guarantee the absorption property of the biological carbon of preparation, improve the clean-up effect of biological carbon.The biological carbon of preparation can reach 86.8%, 89.3%, 87.1% and 83.9% to the highest clearance of lead, chromium, zinc, copper in water.
Detailed description of the invention
Below by embodiment, the present invention is specifically described; be necessary to be pointed out that at this following examples are only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, person skilled in art can make some nonessential improvement and adjustment to the present invention according to foregoing invention content.
embodiment 1
One, Hawaii shell/green shell biological carbon, makes as follows:
1, biomass material pretreatment
The Hawaii shell of collection, green shell are pulverized and sieved to 80 mesh sieves.
2, preparation method
(1) the Hawaii shell after above-mentioned pulverizing, green shell are mixed in quality 1:1 ratio, add the hydrochloric acid solution of 1.5mol/L to stir, sealing and standing 24h, then add 0.1mol/L cesium nitrate solution 5ml to mix, sealing and standing 12h, natural air drying.
(2) biomass material of above-mentioned processing is placed in to porcelain crucible compacting, cover lid, pyrolysis 180min under 600 DEG C of conditions, pyrolysis programming rate is 10 DEG C/min.After pyrolytic reaction finishes, after being cooled to room temperature, takes out by crucible.
(3) H that is 1.0mol/L by the biological carbon of above-mentioned preparation and concentration
2o
2mix, in oscillator, take out with 400r/min speed concussion 24h, clean and dry with distilled water, obtain high absorption property biological carbon.
Two, by the above-mentioned biological carbon purified treatment heavy metal wastewater thereby making
Get 100mL self-control heavy metal wastewater thereby in 250ml beaker, the biological carbon of preparation with 200r/min concussion 3h, is taken out with the centrifugal 20min of 4000r/min under 20 DEG C of conditions, measure content of beary metal in water, can draw the clearance of biological carbon to heavy metal in waste water by calculating.
Three, experimental result
1, to plumbous removal
Biological carbon dosage 1.5019g, lead concentration, plumbous clearance 86.2%.
2, the removal to chromium
Biological carbon dosage 1.5011g, chromium concn, plumbous clearance 86.6%.
3, the removal to zinc
Biological carbon dosage 1.5021g, zinc concentration, the clearance 87.1% of zinc.
4, the removal to copper
Biological carbon dosage 1.5016g, copper concentration, the clearance 81.9% of copper.
embodiment 2
One, Hawaii shell/green shell biological carbon, makes as follows:
1, biomass material pretreatment: the Hawaii shell of collection, green shell are pulverized and sieved to 80 mesh sieves.
2, preparation method
(1) by the Hawaii shell after above-mentioned pulverizing, green shell in mass ratio 3:1 ratio mix, add the hydrochloric acid solution of 1.5mol/L to stir, sealing and standing 24h, then add 0.1mol/L cesium nitrate solution 5ml to mix, sealing and standing 12h, natural air drying.
(2) biomass material of above-mentioned processing is placed in to porcelain crucible compacting, cover lid, pyrolysis 180min under 600 DEG C of conditions, pyrolysis programming rate is 10 DEG C/min.After pyrolytic reaction finishes, after being cooled to room temperature, takes out by crucible.
(3) H that is 1.0mol/L by the biological carbon of above-mentioned preparation and concentration
2o
2mix, in oscillator, take out with 400r/min speed concussion 24h, clean and dry with distilled water, obtain high absorption property biological carbon.
Two, by the above-mentioned biological carbon purified treatment heavy metal wastewater thereby making
Get 100mL self-control heavy metal wastewater thereby in 250ml beaker, the biological carbon of preparation with 200r/min concussion 3h, is taken out with the centrifugal 20min of 4000r/min under 20 DEG C of conditions, measure content of beary metal in water, can draw the clearance of biological carbon to heavy metal in waste water by calculating.
Three, experimental result
1, to plumbous removal
Biological carbon dosage 1.5026g, reaches 86.8% to clearance plumbous in water.
2, the removal to chromium
Biological carbon dosage 1.5019g, reaches 89.3% to the clearance of chromium in water.。
3, the removal to zinc
Biological carbon dosage 1.5007g, reaches 84.2% to the clearance of zinc in water.
4, the removal to copper
Biological carbon dosage 1.5231g, reaches 83.9% to the clearance of copper in water.
embodiment 3
One, Hawaii shell/green shell biological carbon, makes as follows:
1, biomass material pretreatment: the Hawaii shell of collection, green shell are pulverized and sieved to 80 mesh sieves.
2, preparation method
(1) the Hawaii shell after above-mentioned pulverizing, green shell are mixed in quality 5:1 ratio, add the hydrochloric acid solution of 1.5mol/L to stir, sealing and standing 24h, then add 0.1mol/L cesium nitrate solution 5ml to mix, sealing and standing 12h, natural air drying.
(2) biomass material of above-mentioned processing is placed in to porcelain crucible compacting, cover lid, pyrolysis 180min under 600 DEG C of conditions, pyrolysis programming rate is 10 DEG C/min.After pyrolytic reaction finishes, after being cooled to room temperature, takes out by crucible.
(3) H that is 1.0mol/L by the biological carbon of above-mentioned preparation and concentration
2o
2mix, in oscillator, take out with 400r/min speed concussion 24h, clean and dry with distilled water, obtain high absorption property biological carbon.
Two, by the above-mentioned biological carbon purified treatment heavy metal wastewater thereby making
Get 100mL self-control heavy metal wastewater thereby in 250ml beaker, the biological carbon of preparation with 200r/min concussion 3h, is taken out with the centrifugal 20min of 4000r/min under 20 DEG C of conditions, measure content of beary metal in water, can draw the clearance of biological carbon to heavy metal in waste water by calculating.
Three, experimental result
1, to plumbous removal
Biological carbon dosage 1.5008g, reaches 83.9% to clearance plumbous in water.
2, the removal to chromium
Biological carbon dosage 1.5102g, reaches 87.1% to the clearance of chromium in water.
3, the removal to zinc
Biological carbon dosage 1.5014g, reaches 86.9% to the clearance of zinc in water.
4, the removal to copper
Biological carbon dosage 1.5009g, reaches 83.9% to the clearance of copper in water.
Claims (5)
1. a Hawaii shell/green shell biological carbon preparation method is as follows, comprises the following steps:
(1), by the living beings natural air drying of collecting, after the abiotic matter such as removal silt, pulverize and sieve;
(2) living beings after above-mentioned pulverizing are mixed by a certain percentage, add watery hydrochloric acid to stir and evenly mix, sealing and standing 24h, then add cesium nitrate solution to mix sealing and standing 12h, natural air drying;
(3) above-mentioned processing living beings are placed in to porcelain crucible compacting, cover lid carries out anaerobism pyrolysis; After pyrolytic reaction finishes, after being cooled to room temperature, takes out by crucible;
(4) by the biological carbon of above-mentioned preparation and certain density H
2o
2mix, in oscillator, shake 24h and take out, clean post-drying with distilled water, obtain high absorption property biology.
2. the method for claim 1, is characterized in that: described living beings are that Hawaii shell, green shell are raw material, and Hawaii shell, green shell mixing quality ratio are 1～10:1.
3. the method for claim 1, it is characterized in that: selected living beings need first be pulverized 20-100 mesh sieve, press again certain mass than mixing, add watery hydrochloric acid (0.5-2.5mol/L) to soak 24h, add again cesium nitrate solution (0.05-1.5mol/L) to mix, sealing and standing 12h, natural air drying.
4. the method for claim 1, is characterized in that: 400～700 DEG C of biomass pyrolytic temperature, and pyrolysis time 60-300min, programming rate is 5-15 DEG C/min.
5. the method for claim 1, is characterized in that: H
2o
2concentration is 1～10%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992194A (en) * | 2020-08-04 | 2020-11-27 | 四川轻化工大学 | Preparation method of nano hydrous zirconia loaded biochar for removing phosphorus |
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252212A (en) * | 2013-04-22 | 2013-08-21 | 南京师范大学 | Biomass carbon-based flue gas demercuration adsorbent and preparation method thereof |
| CN103611497A (en) * | 2013-12-10 | 2014-03-05 | 四川农业大学 | Method for preparing biological carbon with high nitrogen-phosphorus adsorption properties |
-
2014
- 2014-04-25 CN CN201410169758.8A patent/CN104001473A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252212A (en) * | 2013-04-22 | 2013-08-21 | 南京师范大学 | Biomass carbon-based flue gas demercuration adsorbent and preparation method thereof |
| CN103611497A (en) * | 2013-12-10 | 2014-03-05 | 四川农业大学 | Method for preparing biological carbon with high nitrogen-phosphorus adsorption properties |
Non-Patent Citations (2)
| Title |
|---|
| 张扬等: ""改性玉米芯生物碳对氨氮的吸附特性"", 《化工学报》 * |
| 杨海平等: ""碱金属盐对生物质三组分热解的影响"", 《中国电机工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11124461B2 (en) | 2019-07-04 | 2021-09-21 | Incitec Pivot Limited | Fertilizer |
| US11691929B2 (en) | 2019-07-04 | 2023-07-04 | Incitec Fertilizers Pty Limited | Fertiliser |
| CN111992194A (en) * | 2020-08-04 | 2020-11-27 | 四川轻化工大学 | Preparation method of nano hydrous zirconia loaded biochar for removing phosphorus |
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Application publication date: 20140827 |
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