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All Journal Reaktor Jurnal Distilasi SURYA EDUKASI
Muhammad Arief Karim
Universitas Muhammadiyah Palembang
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Economics, Econometrics & Finance Education Energy Materials Science & Nanotechnology Mathematics Social Sciences

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Journal : reaktor

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BIOBRIKET ENCENG GONDOK (EICHHORNIA CRASSIPES) SEBAGAI BAHAN BAKAR ENERGI TERBARUKAN Eko Ariyanto; Muhammad Arief Karim; Agung Firmansyah
Reaktor Volume 15, No.1, APRIL 2014
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.781 KB) | DOI: 10.14710/reaktor.15.1.59-63

Abstract

Menipisnya cadangan energi fosil sebagai akibat dari meningkatnya pertumbuhan penduduk dan sektor industri. Biomassa dapat dianggap sebagai pilihan terbaik untuk energy alternatif terbarukan. Tujuan dari penelitian ini adalah untuk mengamati kemungkinan eceng gondok (Eichhornia crassipes) untuk diolah menjadi bio-briket. Penelitian briket dilakukan dengan menggunakan tepung tapioka dan lem kayu sebagai perekat. Dengan persentase perekat adalah 4%, 6%, 8%, 10%, dan 12%. Bio-briket yang dihasilkan diamati kadar air evalueted, kadar abu dan nilai kalor. Dari hasil penelitian menunjukkan bahwa nilai kadar air dan kadar abu meningkat dengan meningkatnya presentasi perekat pada bio-briket. Namun, nilai kalor mencapai titik maksimum 10% dan 8% untuk masing-masing penambahan tapioka strach dan lem kayu perekat.
KINETICS OF ADSORPTION OF HEAVY METALS (IRON) FROM TEXTILE INDUSTRY WASTE USING CALCIUM CARBIDE RESIDUE AS ADSORBENT Muhammad Arief Karim; Netty Herawati; Henny Juniar
Reaktor Volume 22 No. 3 December 2022
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.22.3.102-112

Abstract

This research was conducted to study the efficiency of residual calcium carbide as an adsorbent using a batch process to remove iron (II) from textile industrial waste. In this study, the iron (II) content in textile industrial waste was synthetically made using . The effluent was characterized using a standard method (atomic absorption spectrometry), while the functional groups responsible for the Adsorption of iron to the surface of the calcium carbide residue were observed using SEM and Fourier Transform Infra-red (FTIR). The SEM findings revealed a highly porous morphology. FTIR revealed the presence of various functional groups (OH, CH, C=C, and C-C). Factors affecting Adsorption, eg, contact time, adsorbent dose, pH, and iron concentration, were also studied. The maximum iron (II) ion adsorption was observed to occur at pH 6. Kinetic studies showed a good correlation and best suited the pseudo-second-order kinetic model. Langmuir and Freundlich's isotherm model was used to describe the Adsorption of iron (II) on calcium carbide residues. The data obtained from the adsorption process most closely matched the Langmuir model with a correlation value of R^2 = 0.9959 and q_e=1.697 mg/g. with a pseudo-second-order kinetic model with a correlation coefficient value (R2), which is 0.9962 for an adsorbent mass of 7.5 g. The Adsorption of iron ions from textile wastewater synthesis solution using calcium carbide residues shows a physisorption mechanism.
Co-Authors Agung Firmansyah Ambarsari, M. Fitria Putri Ani Melani Eko Ariyanto Fernianti, Dewi Heni Juniar Henny Juniar Juniar, Heni Mardwita Marhaini Netty Herawati Ummi Kalsum