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All Journal Jurnal Rekayasa Proses Jurnal Bahan Alam Terbarukan Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Mechanical Indonesian Journal of Chemical Science Prosiding Seminar Nasional Darmajaya Jurnal Rekayasa Proses Jurnal Redoks Jurnal Teknik INSIST (International Series on Interdisciplinary Research) Jurnal Teknik Kimia Journal of Engineering and Scientific Research (JESR) Abdi Laksana : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian dan Pengembangan Masyarakat Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Inovasi Pembangunan Jurnal Pengabdian dan Pemberdayaan Masyarakat Inovatif International Journal of Renewable Energy Development Journal Of Chemical Process Engineering Jurnal Rekayasa Proses JURNAL REKAYASA KIMIA & LINGKUNGAN Jurnal Teknologi dan Inovasi Industri
Simparmin br Ginting
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Lampung
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Journal : Jurnal Rekayasa Proses

 1 
Kombinasi adsorben biji kelor - zeolit alam Lampung untuk meningkatkan efektivitas penjerapan logam Pb dalam air secara kontinu pada kolom fixed bed adsorber Simparmin Br. Ginting; Sebastian Djoni Syukur; Yeni Yulia
Jurnal Rekayasa Proses Vol 11 No 1 (2017): Volume 11, Number 1, 2017
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.23154

Abstract

The mixture of adsorbents of moringa seed (BK) and natural zeolite of Lampung (ZAL) is placed in a fixed bed adsorber column arranged at a certain height according to the designed height ratio. BK is processed by extraction to remove its oil content while ZAL is activated by chemical and physical treatments. Composition ratio of BK-ZAL (cm/cm) was varied i.e.1:1, 1:2 and 1:3 and concentrations of Pb entering adsorber were 1 ppm and 2 ppm. The adsorption conditions were 20-35 mesh adsorbent size, 4 cm diameter column of adsorber, 5 cm bed height, and 8 liters/3 hours flowrate. Upflow adsorption was performed in a fixed bed adsorption column for 3 hours and Pb solution of output adsorber was taken at every 30 minutes. Analysis of Pb content was performed by Atomic Absorption Spectroscopy (AAS). Adsorbent BK before and after extracted, and after adsorption were characterized using Fourier Transmission Infra Red (FTIR). ZAL before and after activation were characterized using X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), and Fourier Transmission Infra Red (FTIR). The characterization results of XRD, XRF and FTIR showed that the crystalline phases of ZAL increased, the activation process of ZAL only caused a shift in the peak, no significant change in the structure of solids, and the content of impurities in ZAL reduced after activation, thereby enhancing its ability to adsorb Pb. AAS analysis results showed that the best combination adsorbent BK-ZAL (cm/cm) was 1: 2 with the highest effectiveness of the entrapment of Pb metal reached 99.90%. The adsorption capacity of adsorbent was 2.25 mg Pb/ gram adsorbent calculated using Freundlich equilibrium model.
Sintesis ZSM-5 dari coal fly ash (CFA) dengan sumber silika penambah yang berasal dari abu sekam padi: pengaruh rasio SiO2/Al2O3 terhadap kristalinitas produk Azlia Metta; Simparmin Br Ginting; Hens Saputra
Jurnal Rekayasa Proses Vol 8 No 2 (2014): Volume 8, Number 2, 2014
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.11374

Abstract

Coal Fly Ash and rice husk ash can be utilized by converting it into ZSM-5 synthetic zeolite. One of the influencing factors of ZSM-5 synthetis is ratio of SiO2/Al2O3. Synthesis of ZSM-5 was carried out in an autoclave at a temperature of 180°C with a variation of the ratio of SiO2/Al2O3, namely 20, 30, 40, 50 and 60 mol/mol during 24 hour crystallization using TPABr template. Characterization of ZSM-5 was conducted using X-ray Diffraction, Scanning Electron Microscopy, Adsorption-Desorption Analysis of Nitrogen and Acidity. The results showed that the ZSM-5 was formed in all the variations of SiO2/Al2O3 ratios with the highest percent crystallinity of 52.83%, at the ratio of 50 mol/mol. All products are still in accompany with the formation of side products such as Analsime and Silica Oxide. The ZSM-5 crystal product was in hexagonal shape. Results from Adsorption-Desorption Analysis of Nitrogen indicated that all products were mesoporous materials.
Reductive leaching of low-grade manganese ores from Way Kanan using corncob as reductant Putri, Yolanda Dwika; Lesmana, Donny; Ginting, Simparmin Br; Sujoto, Vincent Sutresno Hadi
Jurnal Rekayasa Proses Vol 17 No 1 (2023): Volume 17, Number 1, 2023
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.70372

Abstract

The processing of mining products in indonesia has not been utilized optimally. One of them is manganese ore. Way kanan is one of indonesia's potential manganese ore sites. The manganese leaching study used a -200 mesh way kanan manganese ore that was reacted with sulfuric acid at concentrations of 0.1 M, 0.5 M, and 1 M, as well as corncob as a reductant. To separate the dissolved iron in the leaching process, the manganese sulfate solution was purified with sodium hydroxide and then filtered to have a manganese sulfate solution free of iron. Manganese was precipitated using oxalic acid. The manganese oxalate precipitation was calcined at a temperature of 350 °c for two hours. The best manganese extraction obtained at 92.3% was at a sulfuric acid concentration of 1 M, a temperature of 80 °c, and a solution volume of 400 ml. Calcination of manganese oxalate converted the material into hausmannite (Mn3O4).
Co-Authors Achmad Ariyadi Adisaputro, Jonathan Kristian Agustina Iryani, Dewi Anandati, Ghea Maulidaco Arya Perdana, Guntur Aviati S., Yuniar Azhar Azhar Azhar Azhar Azhar Azizah, Ara Annastasya Azlia Metta Azlia Metta Badaruddin, M. Damaru, Restu Damayanti, Sri Ismiyati Darmansyah DARMANSYAH . Darmansyah . Darmansyah . Darmansyah Darmansyah Darmansyah Darmansyah Devi Permata Sari Devianto, Hary Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Donny Lesmana Donny Lesmana Dwi Derti Sulistiowati Elida Purba Elistia Nursafitri Febriyanto, Pramahadi Feerzet Achmad Guntur Arya Perdana Harahap, Fahmi Alif Utama Harahap, Katrina Hens Saputra Hens Saputra Heri Rustamaji Heri Wardono Hermiyati, Ria Putri Hermiyati, Ria Putri Herry Wardono Herti Utami Herti Utami Herti Utami Herti Utami Heru, Heru Islamia, Ulfa Jonathan Kristian Adisaputro lialismeri Lismeri, Lia M. Haviz M. Praditia Ansor M. Yassien Nurfiqih Mardhotillah, Nur Anisa Marlina, Arlin Mayanti, Eva Miranda, Thalya Muhammad Hanif Muhammad Hanif Muhammad Haviz Nabilla Uliane Ni Luh Gede Ratna Juliasih Nisa Meutia Risthy Novaringga, Adellia Nugrahini, Panca Nur Arifaini Nur Hasanah Nurhasanah Husin Otik Nawansih Pandiangan, Kamisah Delilawati Pista, Annisa Fitria Puligadda, Lohit Krishna Pranav Putri, Erisha Putri, Yolanda Dwika Putriani, Eka Nanda Ria Putri Hermiyati Risthy, Nisa Meutia Sebastian Djoni Syukur Sebastian Djoni Syukur Silviyanti, Serly Siti Nurul Khotimah Solly Aryza Sri Ismiyati Damayanti Sujoto, Vincent Sutresno Hadi Sulistiowati, Dwi Derti Sulistiowati, Dwi Derti Taharuddin Taharuddin Thalya Miranda Tirto Prakoso Ulfa Islamia Vincent Sutresno Hadi Sujoto Widi Astuti Widiatmoko, Pramujo Yeni Yulia Yeni Yulia Yolanda Dwika Putri Yuli Darni Yuli Darni Yuli Darni Zulaikha Setya Mega Sari