CN101708462A - Method for preparing high-performance biomass environmental absorbing material by using soybean stalks - Google Patents
Method for preparing high-performance biomass environmental absorbing material by using soybean stalks Download PDFInfo
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- CN101708462A CN101708462A CN200910234390A CN200910234390A CN101708462A CN 101708462 A CN101708462 A CN 101708462A CN 200910234390 A CN200910234390 A CN 200910234390A CN 200910234390 A CN200910234390 A CN 200910234390A CN 101708462 A CN101708462 A CN 101708462A
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Abstract
The invention discloses a method for preparing a high-performance biomass environmental absorbing material by using soybean stalks and belongs to the technical field of agricultural waste utilization. The soybean stalks are used as raw materials to prepare the high-performance biomass environmental absorbing material by a process of anaerobic pyrolysis and carbonization. The process comprises: leaching the soybean stalks with deionized water, drying the soybean stalks at 105+/-5DEG C for 3 hours, crushing the soybean stalks and sieving the crushed soybean stalks with a 60-mesh sieve; placing the sieved soybean stalks in a muffle furnace to perform anaerobic pyrolysis and carbonization at 700 DEG C for 8 hours; and sieving the resulting product with a 60-mesh sieve to obtain the high-performance biomass environmental absorbing material made of the soybean stalks. The invention has the advantages that: the widely available soybean stalks are used as the raw materials; the manufacturing method is simple and convenient, low in cost and environmentally friendly; and the high-performance biomass environmental absorbing material has the characteristic of high absorption performance compared with biomass absorption materials prepared from other raw materials.
Description
Technical field
The present invention relates to prepare the method for biomass environment adsorbing materials, belong to the agricultural waste utilization technical field.Be specifically related to a kind of method of utilizing soybean stalks to prepare high-performance biomass environmental absorbing material.
Background technology
In recent years, along with China's rapid economy development, the people's living standard significantly improves, the energy resource structure generation significant change in rural area, the crop material fuel such as gas that is liquefied gradually as traditional energy fuel replaces, agricultural crop straw is then banked up in a large number, or on-site incineration, and the crop straw burning phenomenon is particularly outstanding in the area that are fairly developed economically.This not only causes the wasting of resources, produces a large amount of smog and CO, CO simultaneously
2Deng material, destroy agricultural land soil structure and ecological environment, industrial and agricultural production and traffic safety are caused very big threat.
China's water body organism pollution problem is serious, wherein the persistence organic pollutant of trace is (as PAHs, PCBs) often have high biological accumulation and " three cause " effect, current water technology often is difficult to remove effectively this pollutant, thereby water quality safety and population health are constituted a serious threat.Seek novel absorption material economic, efficient, that be suitable for handling this pollutant in the water and become one of focus of paying close attention in the Environmental Science and Engineering field.
Characteristics such as current, the agricultural crop straw charring process is low because of its input, high efficiency, applied range receive more and more researchers' concern.Product after the crop material charing-stalk carbon granule can be produced civilian charcoal and active carbon through further processing; It also can mix with chemical fertilizer and is applied to the farmland, can improve the soil, and improves chemical fertilizer utilization ratio.Also have some researchers to point out, pollutant has the good adsorption performance in carbide confrontation atmosphere, soil and the water body that organic-biological matter generates after handling through charing.
Summary of the invention
The present invention is directed to the problem that existing agricultural straw resource serious waste and environmental pollution increasingly sharpen, provide that a kind of preparation method is easy, cheap, environmental protection, is the method for feedstock production high-performance biomass environmental absorbing material with the soybean stalks.
The present invention is that the method for feedstock production high-performance biomass environmental absorbing material may further comprise the steps with the soybean stalks:
1, soybean stalks is descended oven dry 3h at 105 ℃ ± 5 ℃ after rinsed with deionized water, with its pulverizing and mistake 60 mesh sieves;
2, put into Muffle furnace then and carry out anaerobic pyrolysis carbonization, temperature is 700 ℃, and the pyrolysis charring time is 8h;
3, sieve 60 mesh sieves again, can obtain the soybean stalks high-performance biomass environmental absorbing material.
Beneficial effect
The present invention has following advantage
Soybean stalks is a raw material to originate widely in the present invention, and preparation method is easy, cheap, environmental protection, compares with the environment adsorbing materials of additive method preparation, has the characteristics of high adsorption capacity.
(1) its raw material source of the present invention extensively is easy to get, and belongs to the resource of agricultural solid residue, has reduced preparation cost.
(2) compare with the living beings sorbing material of other feedstock production, adsorption capacity is good.
(3) simple, the economy of this material preparation process, environmental protection meet the needs of cleaner production and recycling economy development, have favorable industrial application prospect.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
The present invention is further illustrated below by example, but it does not influence protection scope of the present invention.
Embodiment 1:
The soybean stalks that to take from Nanjing Suburb is dried 3h down at 105 ℃ ± 5 ℃ after rinsed with deionized water, it is crushed to can passes through 60 mesh sieves; Put into then in the Muffle furnace (model is SX2-25-10, and producer is Taizhou City sky, Jiangsu Province Tai Shiyanyiqichang) and carry out anaerobic pyrolysis carbonization, temperature is 700 ℃, and the pyrolysis charring time is 8h; Sieve 60 mesh sieves again, can obtain the soybean stalks high-performance biomass environmental absorbing material.According to national standard (GBT12496.10-1999) test, leading indicator---methylene blue adsorption value is than the high 15mg/g of merchandise active carbon.The high-performance biomass environmental absorbing material of this method preparation is put in the aqueous solution that contains the 1mg/L phenanthrene, and the solid-to-liquid ratio of living beings sorbing material and luxuriant and rich with fragrance solution is respectively: 1g: 3.2L, 1g: 1.6L, 1g: 0.8L.After the adsorption equilibrium, the clearance of solution China and Philippines reaches 99.66%, 99.85% and 99.81% respectively; Under the same terms, the clearance of merchandise active carbon is 99.68%, 99.81% and 99.07%.
Embodiment 2:
The soybean stalks that to take from Nanjing Suburb is dried 3h down at 105 ℃ ± 5 ℃ after the deionized water washing, it is crushed to can passes through 60 mesh sieves; Put into then in the Muffle furnace (model is SX2-25-10, and producer is Taizhou City sky, Jiangsu Province Tai Shiyanyiqichang) and carry out anaerobic pyrolysis carbonization, temperature is 700 ℃, and the pyrolysis charring time is 8h; Sieve 60 mesh sieves again, can obtain the soybean stalks high-performance biomass environmental absorbing material.According to national standard (GBT12496.10-1999) test, leading indicator---methylene blue adsorption value is than the high 15mg/g of merchandise active carbon.The high-performance biomass environmental absorbing material of this method preparation is put in the aqueous solution that contains 10mg/L naphthalene, 3mg/L acenaphthene, 1mg/L phenanthrene.When the solid-to-liquid ratio of living beings sorbing material and mixed solution is 1g: during 3.2L, after the adsorption equilibrium, naphthalene, acenaphthene, luxuriant and rich with fragrance clearance are respectively 91.28%, 89.01%, 99.66% in the mixed solution; Under the same terms, merchandise active carbon is respectively 89.71%, 88.61%, 99.57% to the clearance of these pollutants.When the solid-to-liquid ratio of living beings sorbing material and mixed solution is 1g: during 1.6L, after the adsorption equilibrium, naphthalene, acenaphthene, luxuriant and rich with fragrance clearance are respectively 96.61%, 94.82%, 99.99% in the mixed solution; Under the same terms, merchandise active carbon is respectively 96.24%, 93.61%, 99.84% to the clearance of these pollutants.
Claims (1)
1. method of utilizing soybean stalks to prepare high-performance biomass environmental absorbing material, this preparation method is raw material with the soybean stalks, make high-performance biomass environmental absorbing material by soybean stalks is carried out the anaerobic pyrolysis carbonization process, it is characterized in that, may further comprise the steps:
(1) with soybean stalks after rinsed with deionized water, at 105 ℃ ± 5 ℃ following oven dry 3h, it is crushed to can passes through 60 mesh sieves;
(2) put into Muffle furnace then and carry out anaerobic pyrolysis carbonization, temperature is 700 ℃, and the pyrolysis charring time is 8h;
(3) sieve 60 mesh sieves again, can obtain the soybean stalks high-performance biomass environmental absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910234390A CN101708462A (en) | 2009-11-24 | 2009-11-24 | Method for preparing high-performance biomass environmental absorbing material by using soybean stalks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910234390A CN101708462A (en) | 2009-11-24 | 2009-11-24 | Method for preparing high-performance biomass environmental absorbing material by using soybean stalks |
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| CN101708462A true CN101708462A (en) | 2010-05-19 |
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| CN200910234390A Pending CN101708462A (en) | 2009-11-24 | 2009-11-24 | Method for preparing high-performance biomass environmental absorbing material by using soybean stalks |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921380A (en) * | 2012-11-16 | 2013-02-13 | 重庆大学 | Modification method for improving absorption performance of biomass carbon |
| CN104941575A (en) * | 2014-03-25 | 2015-09-30 | 南京农业大学 | Multi-amino carbon composite material for selectively fixing mercury, chromium and lead in polluted soil and preparation method |
| CN111530225A (en) * | 2020-04-29 | 2020-08-14 | 沈阳东大山汇环境科技有限公司 | Circular ecological environment-friendly treatment process for agriculture and forestry organic waste and flue gas |
-
2009
- 2009-11-24 CN CN200910234390A patent/CN101708462A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921380A (en) * | 2012-11-16 | 2013-02-13 | 重庆大学 | Modification method for improving absorption performance of biomass carbon |
| CN102921380B (en) * | 2012-11-16 | 2014-07-09 | 重庆大学 | Modification method for improving absorption performance of biomass carbon |
| CN104941575A (en) * | 2014-03-25 | 2015-09-30 | 南京农业大学 | Multi-amino carbon composite material for selectively fixing mercury, chromium and lead in polluted soil and preparation method |
| CN111530225A (en) * | 2020-04-29 | 2020-08-14 | 沈阳东大山汇环境科技有限公司 | Circular ecological environment-friendly treatment process for agriculture and forestry organic waste and flue gas |
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Open date: 20100519 |