| 改性方法对煤渣除氟性能的影响 |
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| 引用本文： | 沈俊菊,李彦儒,王丽娟. 改性方法对煤渣除氟性能的影响[J]. 山西师范大学学报：自然科学版, 2013, 0(3): 53-57 |
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| 作者姓名： | 沈俊菊 李彦儒 王丽娟 |
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| 作者单位： | 山西师范大学化学与材料科学学院,山西临汾041004 |
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| 基金项目： | 山西省高校高新技术产业化项目（20110016） |
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| 摘 要： | 本实验比较了经硫酸、氢氧化钠、高温和超声波改性后的煤渣对氟离子的吸附效果,并研究了超声波改性煤渣对氟的吸附性能.结果表明:超声波改性煤渣的除氟效果最好,当超声时间为60 min时,氟离子的吸附量达到0.972 6 mg·g–1.在20℃、30℃和40℃温度下,不同浓度下的等温吸附实验数据都符合Langmuir等温式.此外,热力学参数表明超声波改性煤渣吸附氟离子是自发的、吸热的、熵增加的过程.
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| 关 键 词： | 改性煤渣 超声波 除氟 |
Study of the Effects of Different Modified Cinders on Fluoride Removal |
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| SHEN Jun-ju,LI Yan-ru,WANG Li-juan. Study of the Effects of Different Modified Cinders on Fluoride Removal[J]. Journal of Shanxi Teachers University, 2013, 0(3): 53-57 |
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| Authors: | SHEN Jun-ju LI Yan-ru WANG Li-juan |
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| Affiliation: | (School of Chemistry and Materials Science, Shanxi Normal University, Linfen 041004, Shanxi, China) |
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| Abstract: | Abstract： sonic modified investigated in obviously up to of 20 ℃ ,30℃ eters indicated The effects of fluoride removal with sulfuric acid, sodium hydroxide, high temperature and ultra- cinder were compared and the fluoride adsorption characteristics of ultrasonic modified cinder were present study. The results showed that the adsorption capacity of cinder for fluoride increased most 0. 972 6 mg·g - 1 after 60 minutes ultrasonic treatment. The experimental data at the temperature and 40 ℃ complied well with that the adsorption process of Langmuir adsorption isotherm. In addition, thermodynamic param- fluoride was a spontaneous and endothermic process of entropy in-crease. |
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| Keywords: | modified cinder ultrasonic fluoride removal |
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