超微粉碎对荸荠皮吸附重金属离子性能的影响

为研究超微粉碎对荸荠皮吸附重金属离子性能的影响,分别进行了粉碎10、30、60 min的荸荠皮超微粉和荸荠皮粗粉对Hg2+、Cd2+和Pb2+的吸附试验。结果表明,超微粉碎处理能使荸荠皮对重金属离子的吸附能力显著增强,粉碎10 min的荸荠皮超微粉对Hg2+、Cd2+和Pb2+的最大吸附量分别达到0.0148、35.25和100.46μg/g,吸附能力比粗粉分别提高约142.62%、83.21%和153.43%。超微粉碎10 min后,荸荠皮对Cd2+的吸附能力没有明显变化,但对Hg2+和Pb2+的吸附量有一定下降。3种重金属离子共存时产生了竞争吸附,其中Hg2+和Pb2+之间的竞争吸附较为明...

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Published in广东农业科学 Vol. 38; no. 10; pp. 91 - 93
Main Author 高志明 罗杨合 陈振林 解庆林
Format Journal Article
LanguageChinese
Published 贺州学院桂东特色资源研究与开发广西重点建设实验室,广西贺州,542800 2011
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ISSN1004-874X
DOI10.3969/j.issn.1004-874X.2011.10.036

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Summary:为研究超微粉碎对荸荠皮吸附重金属离子性能的影响,分别进行了粉碎10、30、60 min的荸荠皮超微粉和荸荠皮粗粉对Hg2+、Cd2+和Pb2+的吸附试验。结果表明,超微粉碎处理能使荸荠皮对重金属离子的吸附能力显著增强,粉碎10 min的荸荠皮超微粉对Hg2+、Cd2+和Pb2+的最大吸附量分别达到0.0148、35.25和100.46μg/g,吸附能力比粗粉分别提高约142.62%、83.21%和153.43%。超微粉碎10 min后,荸荠皮对Cd2+的吸附能力没有明显变化,但对Hg2+和Pb2+的吸附量有一定下降。3种重金属离子共存时产生了竞争吸附,其中Hg2+和Pb2+之间的竞争吸附较为明显。
Bibliography:44-1267/S
To study the effect of ultra-fine pulverization on the adsorption capacity for heavy metal ions of Eleocharis tuberose peel,the adsorption for Hg2+,Cd2+ and Pb2+ on the coarse powder and ultra-fine powder of Eleocharis tuberose peel is investigated,the ultra-fine powder was acquired by ultra-fine pulverization the Eleocharis tuberose peel for 10,30 and 60 minutes.The results showed that the adsorption capacity for heavy metal ions of Eleocharis tuberose peel can be increased apparently by ultra-fine pulverization.The maximum adsorption amounts for Hg2+,Cd2+ and Pb2+ by Eleocharis tuberose peel ultra-fine powder pulverized for 10 minutes arrived 0.0148,35.25 and 100.46 μg/g respectively,that are higher than the coarse powder with maximum absorption amounts about 142.62%,83.21% and 153.43% respectively.When the pulverization time was more than 10 minutes,no apparent change had been made to the adsorption capacity of the powder for Cd2+,but decreased for Hg2+ and Pb2+.Competitive adsorption was emerged
ISSN:1004-874X
DOI:10.3969/j.issn.1004-874X.2011.10.036