高档烟煤生产活性炭脱除Cr (VI)

E. Kusdarini, Denis Rocky Pradana, A. Budianto
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引用次数: 1

摘要

以高档烟煤为原料制备活性炭,具有去除纺织工业废渣中金属铬的潜力。本研究的目的是1)得到活性炭的特性,2)研究试剂浓度和活化温度对活性炭特性的影响,3)得到Freundlich和Langmuir建立的活性炭对金属铬的等温吸附方程。本研究采用实验室规模的实验方法,即在实验室中进行活性炭的制备和活性炭对金属铬的吸附能力测试。活性炭的制造是通过化学活化剂(NH4)3PO4、中和、过滤、物理活化、冷却等过程进行的。同时,通过活性炭与含有一定Cr6+离子的溶液接触,测试了活性炭对金属铬的吸附能力。本研究的更新是采用(NH4)3PO4试剂,并测试了活性炭对人工废弃物中Cr6+离子的吸附能力。本研究表明,活性炭经(NH4)3PO4 0.5 - 2 M试剂活化,物理活化温度为825℃,达到SNI号06-3730-1995标准。采用(NH4)3PO4 1 M溶液化学活化和825℃物理活化制备的活性炭效果最好。含水1.27%的活性炭性能最佳;挥发物含量17.17%,灰分含量9.39%;固定碳含量为73.17%,碘值为1248.30 mg/g。活性炭对Cr6+的最佳Langmuir等温吸附方程为常数Ar = -90.0901, Kc = -0.0075。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Production of Activated Carbon from High-Grade Bituminous Coal to Removal Cr (VI)
Activated carbon was produced from high-grade bituminous coal, potentially removing Cr metal in textile industrial waste. The purposes of this study were 1) getting activated carbon characteristics, 2) studying the impact of reagent concentration and activation temperature on the activated carbon characteristics, and 3) getting the isotherm adsorption equation for activated carbon developed by Freundlich and Langmuir on Cr metal. This research used an experimental method with a laboratory scale, which means the manufacture of activated carbon and a test of adsorbs power of activated carbon to the Cr metal were conducted in the laboratory. Activated carbon manufacture through carbonization process of chemical activation used reagent (NH4)3PO4, neutralization, filtration, physical activation, and cooling. At the same time, it tested the adsorption power of the activated carbon to Cr metal through activated carbon contact with a solution containing some Cr6+ ion. The update in this research was using reagent (NH4)3PO4 and the test of adsorption power of activated carbon to Cr6+ ion contained in the artificial waste. This research showed activated carbon that has been activated using reagent (NH4)3PO4 0.5 – 2 M at physical activation temperature of 825oC and has met the standard of SNI number 06-3730-1995. The best-activated carbon was produced from chemical activation using (NH4)3PO4 1 M solution and physical activation at 825oC. The best-activated carbon characteristics contained 1.27% water; 17.17% content of volatile matter, 9.39% was ash content; 73.17% contained fixed carbon, and the iodine value was 1248.30 mg/g. The best Equation of Langmuir isotherm adsorption of activated carbon to the Cr6+ produced Constant Ar = -90.0901 and Kc = -0.0075.
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