Comparison of column adsorption processes by downflow and upflow for removal of cupric (Cu2+) ion solutions using non activated and activated charcoal from rambutan (Nephelium lapp... by Bode Haryanto, Sofyan Efendi Saragih, Hamidah Harahap, Tubagus Rayyan Fitra Sinuhaji, Vikram Alexander

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Competence of corncob (Zea mays L.) powder with HCl activation as adsorbent to purify waste cooking oil: Reference in the batch adsorption process by Bode Haryanto, Rondang Tambun, Oktavia Merta Sitohang, Stephanie Yosepha Sidauruk, Gabriela Emma Naomi, Vikram Alexander

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Improving efficiency and product quality by optimizing methanol purification in biodiesel plant: Addressing abnormalities in distillation column performance by Anggara Dwita Burmana, Yacine Benguerba, Filicia Wicaksana, Vikram Alexander, Silvia Nova, Taslim Taslim, Iriany Iriany

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Biogas upgrading via CO2 absorption using monosodium glutamate-promoted potassium carbonate in packed absorption column: Design and performance assessment by Bambang Trisakti, Rivaldi Sidabutar, Irvan, Hani Suhastifa Rambe, Vikram Alexander, Andrew Moses Noverindo Simanjuntak, Joshua Syaloom Silalahi, Rafael Aginta Sitepu, Michael Michael, Juan Akmal Nasution, Yasmin Nabilah, Hiroyuki Daimon

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