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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Teknik Kimia dan Lingkungan
Lestari, Riani Ayu
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Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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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.
Modification of Cellulose Acetate Membrane in Textile Wastewater Treatment to Improve Antifouling Properties Pramedikawati, Trias; Maryudi, Maryudi; Permadi, Adi; Mufrodi, Zahrul; Lestari, Riani Ayu
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 11, No 1 (2026): EDISI MARET 2026
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v11i1.8249

Abstract

The growth of the textile industry in Indonesia contributes positively to the economy, but simultaneously generates hazardous wastewater containing synthetic dyes and persistent organic compounds. The primary challenge in treating this effluent is fouling of cellulose acetate (CA) membranes, which reduces filtration efficiency and shortens operational lifespan due to pollutant accumulation. This study aims to evaluate various CA membrane modification strategies to enhance their physicochemical characteristics and antifouling properties. The discussion covers the integration of additives, including metal oxides (TiO?, ZnO), polymers (PEG, chitosan), and carbon-based materials (GO, CNT), which have been shown to form a stable hydration layer on the membrane surface. The review results indicate that these modifications significantly increase hydrophilicity, improve dye rejection up to 85 percent, and achieve a flux recovery ratio exceeding 90 percent. In conclusion, CA membrane modification via surface engineering is an effective solution for enhancing filtration performance and improving the sustainability of textile wastewater treatment.
Co-Authors Adi Permadi, Adi Iryanti Fatyasari Nata, Iryanti Fatyasari Maryudi Maryudi Muthia Elma Nurandini, Desi Pramedikawati, Trias Primata Mardina Wahdah, Rabiatul Zahrul Mufrodi, Zahrul