KESETIMBANGAN ADSORPSI ISOTERMIS LOGAM Cr (VI) PADA FLY ASH

AL ULUM JURNAL SAINS DAN TEKNOLOGI Pub Date : 2021-05-23 DOI:10.31602/AJST.V6I2.4842.G2951

Saripah Sobah, Fitria Fitria, Yano Hurung Anoi, Diana Diana, Precast Octavianus

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Abstract

The Purpose of this study was to determine the optimum adsorption time of fly ash from the PT. Pupuk Kaltim in adsorbing Cr metal, optimal stirring speed, and optimal weight of fly ash under isothermic conditions in batches using the Langmuir equation has been carried out at atmospheric conditions, temperature 27oC. Fly ash varies in weight and stirring speed. The filtrate was added with 2 mL of 0.1% NH4Cl after equilibrium, then analyzed using AAS AA-7000. The optimal adsorption time of fly ash in adsorbing Cr metal is 60 minutes. The optimal adsorption weight of fly ash is in 50 mL of Cr solution is 2 grams with an average efficiency value of 91.22%. The optimum stirring speed of fly ash to adsorb Cr metal is 200 rpm. Keywords: isothermic adsorption, fly ash, Cr metal

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高氯化合金Cr (VI)在飞灰上的平衡

本研究在常压条件下，温度为27℃，利用Langmuir方程确定了Pupuk Kaltim粉煤灰对Cr金属的最佳吸附时间、最佳搅拌速度和等温条件下分批次粉煤灰的最佳重量。粉煤灰的重量和搅拌速度各不相同。滤液平衡后加入2 mL 0.1% NH4Cl，原子吸收分光光度法AA-7000分析。粉煤灰对金属铬的最佳吸附时间为60分钟。粉煤灰在50 mL Cr溶液中的最佳吸附量为2 g，平均吸附效率为91.22%。粉煤灰吸附金属铬的最佳搅拌速度为200转/分。关键词:等温吸附，粉煤灰，金属铬

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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AL ULUM JURNAL SAINS DAN TEKNOLOGI

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