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All Journal Jurnal Teknik Kimia USU JURNAL REKAYASA KIMIA & LINGKUNGAN
Juliananda Juliananda
Department Of Chemical Engineering, Universitas Brawijaya
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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ADSORPSI KESADAHAN (Ca) MENGGUNAKAN ADSORBEN BERBASIS SEKAM PADI A.S. Dwi Saptati Nur Hidayati; Juliananda; Bambang Ismuyanto
Jurnal Teknik Kimia USU Vol. 5 No. 3 (2016): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.717 KB) | DOI: 10.32734/jtk.v5i3.1537

Abstract

This study reports adsorption of hardness (Ca) onto rice husk-basedadsorben. Characterization of rice husk-based adsorbent was identified by FTIR. Experiments were carried aout with several parametersvariations such as adsorption time (30-180 minutes) and the initial hardness (Ca) concentration (164.8 to 329.6) mg/L. Furthermore, initial study to evaluate the feasibility of adsorbent application was doneusing Langmuir and Freundlichtest. The results showed that hardness (Ca)removalup to 35.98% at a concentration of Na2SO41 M and adsorption time 150 minutes. The adsorption data obtained data were fitted well to Langmuir isotherm model with adsorption capacity of rice husk-based adsorbent was found to be 18.52 mg/g.
Preparation and Characterization of Interfacially Polymerized Polyamide Membrane for Dye Removal Nurul Faiqotul Himma; Bambang Ismuyanto; AS Hidayati; Juliananda Juliananda; Hidayatul Rohmawati; Irfan Budiarta
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 1 (2021): Jurnal Rekayasa Kimia & Lingkungan (June, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v16i2.20337

Abstract

Interfacial polymerization of polyamide was conducted using hydrophobic and hydrophilic membrane support. The effects of monomer concentration were investigated, and the resulting thin-film composite membranes were tested for their performance in dye removal using different flow configurations. The results showed that a dense polyamide layer was successfully formed on the hydrophilic support, while a polyamide layer with a very loose structure was formed on the hydrophobic support. The polyamide layer became smoother and more hydrophilic as the concentration of trimesoyl chloride was increased, leading to increased permeate flux and reduced dye rejection. The highest sunset yellow rejection of 45.7% with a permeate flux of 4.9 L/m2.h was obtained when the polyamide layer was formed from trimesoyl chloride concentration of 0.05 w/v% (a high amine to acid chloride monomer ratio of 20) and the filtration was in cross-flow configuration.
Co-Authors A.S. Dwi Saptati Nur Hidayati AS Hidayati Bambang Ismuyanto Bambang Ismuyanto Hidayatul Rohmawati Irfan Budiarta Nurul Faiqotul Himma