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All Journal Journal of Aceh Physics Society Jurnal Natural JURNAL REKAYASA KIMIA & LINGKUNGAN
Lelifajri Lelifajri
Chemistry Department, Faculty Of Mathematics And Natural Sciences, Universitas Syiah Kuala, Banda Aceh, Indonesia 23111
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Engineering Immunology & microbiology Neuroscience Physics

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Journal : JURNAL REKAYASA KIMIA

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Adsorpsi Ion Logam Cu(II) Menggunakan Lignin dari Limbah Serbuk Kayu Gergaji Lelifajri Lelifajri
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 3 (2010): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Adsorption of heavy metal ion Cu(II) onto modified lignin from sawdust waste have been presented. The ability of lignin from sawdust waste to adsorb the copper ion has been evaluated by varying adsorption time, pH of solution, and adsorption capacity. The concentration of copper ion was measured by atomic adsorption spectrometer. The result showed that the optimum condition of ion Cu(II) by lignin were achieved at adsorption time of 15 minutes, pH of solution of 6, and copper concentration of 20 mg/L with adsorption efficiency of 99,3 %. In this study, the maximum capacity of 15,43 mg/g and equilibrium constant of 754,96 were achieved.Keywords: adsorpsi, ion tembaga, lignin, limbah serbuk kayu gergaji
Analisis Logam Berat Pb dan Cd dalam Sampel Ikan dan Kerang secara Spektrofotometri Serapan Atom Supriatno Supriatno; Lelifajri Lelifajri
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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The analysis of heavy metals Pb and Cd concentrations in fish and oyster have been carried out by atomic absorption spectrophotometer (AAS) method. The wet digestion method was used for preparation sample prior to AAS detection. Sample was collected from three different location rivers at Lamnyong, Pantee Pirak and Lumbago. The result showed that the Pb and Cd concentration in fish and oyster at difference location were obtained not difference significantly. Pb and Cd contents in fish and oyster were found below lethal concentration. The AAS instrument was still valid to use as the instrument which is obtained of accuration of 0.65% and precise of 0,019 ppm still lower than threshold value of 1% and 0.04 ppm.Keywords: atomic absorbance spektrophootometry, fish, kerang, heavy metal
Co-Authors Alfahmizar Alfahmizar Binawati Ginting Dedi Satria Fauzi Fauzi KHAIRI SUHUD Rahmi Rahmi Supriatno Supriatno Surbakti, Muhammad Syukri Yuliani Aisyah Yuliani Yuliani