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Agung Ari Wibowo
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INDONESIA
Jurnal Teknik Kimia dan Lingkungan
Published by Politeknik Negeri Malang
ISSN : 25798537     EISSN : 25799746     DOI : http://dx.doi.org/10.33795/jtkl
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology
JTKL editors welcome manuscripts in the form of research articles, literature review, or case reports that have not been accepted for publication or even published in other scientific journals. Articles published in cover key areas in the development of chemical and environmental engineering sciences, such as: Energy Waste treatment Unit operation Thermodynamic Process simulation Development and application of new material Chemical engineering reaction Biochemical Biomass Corrosion technology The "JURNAL TEKNIK KIMIA DAN LINGKUNGAN" journal is a peer-reviewed Open Access scientific journal published by Politeknik Negeri Malang. This journal first appeared in October 2017. The main purpose of the journal was to support publication of the results of scientific and research activities in the field of Chemical and Environmental Engineering. It is published twice a year in April and October.
Arjuna Subject : Teknik Kimia (semua kategori) - Kimia Proses dan Teknologi
Articles 142 Documents
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POME Dye Removal Performance during Pervaporation using Lignin Nanoparticle Integrated into Polyamide Thin Film Composite Membranes Lestari, Riani Ayu; Wahdah, Rabiatul; Elma, Muthia; Mardina, Primata; Nurandini, Desi; Nata, Iryanti Fatyasari
Jurnal Teknik Kimia dan Lingkungan Vol. 10 No. 1 (2026): April 2026
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v10i1.9334

Abstract

Palm oil mill effluent (POME) contains recalcitrant, dye-like chromophoric compounds that are difficult to remove using conventional treatment, leading to persistent colour pollution and limiting safe discharge or reuse. Although polyamide thin-film composite (PA-TFC) membranes offer strong selectivity, their performance in high-strength wastewater is often constrained by the permeability-selectivity trade-off and susceptibility to fouling. To address this gap, this study investigates a bio-based modification strategy by integrating lignosulfonate-derived lignin particles into the polyamide selective layer to enhance pervaporation-based decolorization. Lignin-modified PA-TFC membranes were fabricated via interfacial polymerization with molar ratio MPD: TMC for 0.00925:0.0188 and 0.25% of lignosulfonate. It was then evaluated for pervaporation flux, colour rejection, and chemical stability during POME treatment. Chemical and structural characterization by FTIR indicated changes in surface functional groups consistent with enhanced intermolecular interactions between lignin and the polyamide matrix. The lignin-integrated membrane achieved an improved separation performance, reaching a flux of 17 ± 0.8 kg.m-2.h-1 with up to 85% colour rejection, outperforming the pristine polyamide membrane. The performance enhancement is attributed to improved hydrophilicity and a more favourable selective-layer microstructure enabled by the homogeneous distribution of lignin particles and hydrogen-bonding interactions within the polyamide network. Overall, incorporating lignin as a renewable additive provides a promising route to develop higher-performance PA-TFC membranes for pervaporation treatment of POME, supporting more sustainable industrial wastewater management and reducing colour-related environmental impacts.
Producing Precipitated Calcium Carbonate (PCC) from CO2 Emissions during OFMSW Bio-Drying through Carbonation: A Preliminary Study Naryono, Eko; Lusiani, Cucuk Evi; Iswara, Mochammad Agung Indra; Chalim, Abdul; Azkiya, Noor Isnaini; Putri, Amalia Dwi Ardini; Tyas, Allivia Retnaning; Kaliawan, Kaliawan
Jurnal Teknik Kimia dan Lingkungan Vol. 10 No. 1 (2026): April 2026
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v10i1.9573

Abstract

Capturing CO₂ emissions during the bio-drying process of organic fraction municipal solid waste (OFMSW) presents an alternative approach to reducing CO₂ emissions in municipal solid waste (MSW) management. Absorption using an aqueous solution of Ca(OH)₂ is a viable CO₂ capture technology that produces precipitated calcium carbonate (PCC), a value-added product. The objectives of this study are to assess the impact of bio-drying aeration flow rate and absorption time in the Ca(OH)₂ solution on CO₂ absorption efficiency, the conversion of Ca(OH)₂, and the mass of the PCC product. The absorption process was performed in a semi-continuous bubble reactor with 15 L of 0.019 M Ca(OH)₂ aqueous solution. At bio-drying aeration flow rates of 5.1, 4.6, and 3.9 L/min/kg of waste, with CO₂ concentrations ranging from 1286 to 4395 ppm and temperatures between 23 to 30°C over a bio-drying period of 96 hours, it was observed that higher flow rates resulted in lower conversion rates of Ca(OH)₂ and reduced CO₂ absorption efficiency. The highest recorded conversion rates for Ca(OH)₂ and CO₂ absorption were 97.3% and 16.4%, respectively, yielding a PCC product of 4.8 g/kg of waste at an aeration flow rate of 3.9 L/min/kg waste and an absorption duration of 48 hours. FTIR and SEM analysis confirmed the presence of both calcite and aragonite crystal forms in the PCC product, as well as hydrated CaCO₃.

Page 15 of 15 | Total Record : 142

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