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All Journal JOURNAL ONLINE OF PHYSICS Jurnal Rekayasa Material, Manufaktur & Energi SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Menara: Jurnal Teknik Sipil Jurnal Inovasi Pendidikan dan Sains Archipelago Engineering CHEMTAG Journal of Chemical Engineering Jurnal Sains dan Teknologi Jurnal Pengabdian Pada Masyarakat Warta LPM Jurnal Teknologi Kimia Mineral Journal of Green Chemical and Environmental Engineering
Alif Nur Laili Rachmah
Universitas Pattimura
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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SUPERIOR PERFORMANCE IN REACTIVE DISTILLATION METHOD FOR INDUSTRIAL APPLICATION: A CASE STUDY OF ETHYL LACTATE PRODUCTION Taipabu, Muhammad Ikhsan; Rahanra, Geraldi; Rachmah, Alif Nur Laili; Badaruddin, Sabrianah; Trisnantaria, Tamaratritania C.; Tan, Clarissa
ALE Proceeding Vol 7 (2025): Archipelago Engineering (ALE)
Publisher : Fakultas Teknik Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ale.7.2025.97-104

Abstract

Ethyl lactate, a biodegradable and environmentally friendly solvent, offers a sustainable alternative to conventional petroleum-based solvents. This study presents a comprehensive evaluation of ethyl lactate production through both conventional and intensified process designs using rigorous process simulation. The reactive distillation column (RDC) was identified as the most efficient configuration, achieving notable reductions in total capital cost (57.3%) and total operating cost (40.2%) compared to traditional setups. The NRTL thermodynamic model was employed to accurately capture non-ideal behavior among reactive components, and kinetic parameters were validated against experimental data. The results demonstrate that RDC-based process intensification significantly enhances economic performance while promoting sustainable chemical manufacturing, positioning it as a promising approach for future green solvent production.
Edukasi ecoprint dengan teknik pounding berbasis kearifan lokal, sebagai pewarnaan ramah lingkungan di Mamala, Maluku Tengah Trisnantari, Tamaratritania Citta; Rachmah, Alif Nur Laili; Rahanra, Geraldi; Taipabu, Muhammad Ikhsan; Badaruddin, Sabrianah; Rumpakwakra, Ervina; Jaya, Gede Wiratma; Nggolaon, Delpina; Alzagladi, Safina Utari
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 5 (2025): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i5.34077

Abstract

Abstrak Penggunaan pewarna sintetis dalam industri tekstil dapat menimbulkan risiko pencemaran lingkungan dan membahayakan kesehatan manusia. Oleh karena itu, ecoprint hadir sebagai alternatif pewarnaan ramah lingkungan yang memanfaatkan warna alami dari tumbuhan. Kegiatan Pengabdian kepada Masyarakat (PkM) ini bertujuan memberikan edukasi tentang bahaya pewarna sintetis, memperkenalkan ecoprint dengan teknik pounding, serta memanfaatkan kearifan lokal berupa tumbuhan sekitar sebagai pewarna alami. Mitra kegiatan ini adalah SMAS Muhammadiyah Mamala, Maluku Tengah, dengan peserta sebanyak 32 orang (30 siswa dan 2 guru). Metode pelaksanaan mencakup ceramah, diskusi, demonstrasi, dan praktik langsung pembuatan ecoprint pada tas katun menggunakan daun lokal seperti pakis dan pepaya jepang. Evaluasi dilakukan melalui pre-test dan post-test serta observasi selama kegiatan berlangsung. Hasil evaluasi menunjukkan peningkatan pemahaman peserta terhadap dampak pewarna sintetis dan prinsip ecoprint. Sebanyak 30 peserta menyatakan ingin kembali mencoba praktik ecoprint. Secara umum, peserta menunjukkan antusiasme tinggi dan mampu menghasilkan motif ecoprint yang unik. Meskipun terdapat kendala seperti keterbatasan alat dan hasil cetakan yang kurang jelas, kegiatan berjalan lancar dan memberi dampak positif terhadap peningkatan kesadaran lingkungan serta keterampilan kreatif peserta. Edukasi ecoprint ini berpotensi dikembangkan sebagai bagian dari kewirausahaan berbasis sekolah dengan pendekatan edukatif dan berkelanjutan. Kata kunci: ecoprint; teknik pounding; edukasi lingkungan; kearifan lokal; pewarna alami. Abstract The use of synthetic dyes in the textile industry poses significant risks to both environmental and human helath. As a sustainable alternative, ecoprint utilizes natural pigments from plant materials to create textile patterns without generating hazardous chemical waste. This community service program aimed to raise awareness about the environmental hazards of synthetic dyes, introduce the pounding technique in ecoprinting, and promote the use of local plant resources as natural dyes rooted in local wisdom. The activity was carried out at SMAS Muhammadiyah Mamala, Central Maluku, involving 32 participants (30 students and 2 teachers). The program combined educational lectures, discussions, demonstrations, and hands-on workshops in which participants applied the pounding technique to cotton tote bags using local foliage such as ferns and Japanese papaya leaves. Evaluation through pre- and post-tests, along with direct observation, indicated a significant improvement in participants’ understanding of eco-friendly dyeing practices. Most participants expressed strong interest in continuing ecoprinting activities. Despite minor challenges—such as limited tools and difficulties in achieving sharp prints—the program was successfully implemented. It fostered environmental awareness, creativity, and practical skills among students. This initiative demonstrates strong potential to be further developed into a school-based entrepreneurship model with ecological and educational value. Keywords: ecoprint; pounding technique; environmental education; local wisdom; natural dyes.
BIOETHANOL FROM CHEESE WASTE (WHEY) USING KLUYVEROMYCES MARXIANUS Alif Nur Laili Rachmah; Ratri Sekaringgalih; Binti Ruliana; Ansori Ansori
Jurnal Inovasi Pendidikan dan Sains Vol 4 No 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Nahdlatul Wathan Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51673/jips.v4i3.1799

Abstract

Alternatives to petroleum scarcity are of much concern to researchers. The development of bioethanol is one of the renewable energies that must be supported by research from various sources of raw materials so that it can be converted into bioethanol. Generally, the raw material of bioethanol used contains sugar and starch. if biomass used sugar cane and cassava then the availability of food will also be threatened. Therefore one of the alternative raw materials that can be used is industrial waste cheese (whey). Whey is the side of the product cheese industry, which contains 4-5%. The aim of the study is to optimate whey fermentation to the production of bioethanol using Kluyveromyces marxianus with the variation of time and starter volume. Bioethanol production with raw material lactose which is contained in whey used Kluyveromyces Marxianus with variabel changed time fermentation and starter volume. For time fermentation variables are 24, 48, 60, 72 dan 84 hours, and for volume starter variabel are 20%, 22%, dan 24% v/v. The highest content of bioethanol production used Kluyveromyces Marxianus on variable starter volume 24% at time 84 hours was obtained 0,32% bioethanol content with pH 3,5
Optimization of Biodegradable Films from Avocado Seed Starch Using Response Surface Methodology Rachmah, Alif Nur Laili; Badaruddin, Sabrianah; Trisnantari, Tamaratritania Citta; Rahanra, Geraldi; Sekaringgalih, Ratri
Journal of Green Chemical and Environmental Engineering Vol. 2 No. 1 (2026): Journal of Green Chemical and Environmental Engineering
Publisher : Candela Edutech Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63288/jgcee.v2i1.23

Abstract

This study aimed to develop and optimize biodegradable films based on avocado seed starch (Persea americana) using glycerol as a plasticizer and chitosan and carrageenan as fillers. The film formulation was optimized using Response Surface Methodology (RSM) with a Box–Behnken Design to evaluate the effects of formulation variables on biodegradability and mechanical properties. The biodegradability values ranged from 31.93 % to 51.94 %, indicating that all films were biodegradable. Increasing glycerol and carrageenan concentrations significantly increased biodegradability, while higher chitosan concentration improved tensile strength but reduced biodegradability. The optimal formulation was obtained at 2.96 % glycerol, 1.56 % chitosan, and 2.85 % carrageenan, with a predicted biodegradability of 53.11 %. The results indicate a trade-off between mechanical strength and biodegradability, where higher plasticizer content enhances degradation but reduces tensile strength. This study demonstrates that RSM optimization is effective in producing biodegradable films with balanced mechanical and environmental performance, highlighting the potential of avocado seed starch as a sustainable packaging material.
Technical Assessment and Optimization of Off-Gas Cooling in Nickel Matte Pyrometallurgy Based on Carbon Variation Badaruddin, Sabrianah; Alif Nur Laili Rachmah; Taipabu, Muhammad Ikhsan; Farida Diyah Hapsari; Esther Muatiara Santallum Ekklesia Tibalia
Journal of Green Chemical and Environmental Engineering Vol. 2 No. 1 (2026): Journal of Green Chemical and Environmental Engineering
Publisher : Candela Edutech Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63288/jgcee.v2i1.21

Abstract

Exhaust gas emission management is a critical aspect of pyrometallurgical nickel smelting because it directly affects energy efficiency, operational safety, and overall process sustainability. This study investigates the influence of calcine carbon content on exhaust gas formation and determines the required cooling air volume in an industrial electric furnace operating at approximately 150 tons per hour. The research is based on deterministic mass and energy balance modelling developed from actual operational data obtained from a nickel smelting facility. The analysis quantifies the relationship between carbon oxidation reactions and off-gas generation during the smelting process. Results reveal a strong linear correlation between increasing calcine carbon content and exhaust gas volume. At an average carbon content of 1.96 %, the furnace produces 47,241 Nm³/h of exhaust gas. Under these operating conditions, a cooling air injection of 9,292 Nm³/h is required to reduce the gas temperature from 1000 °C to 800 °C in order to maintain safe furnace operation. The findings demonstrate that precise control of calcine carbon content and optimised cooling air design are essential for improving operational safety and efficiency in nickel smelting. The developed model provides a quantitative basis for designing safer and more efficient industrial off-gas control systems.
RESPONS PERTUMBUHAN CHLORELLA sp. TERHADAP PENAMBAHAN LIMBAH CAIR ORGANIK PADA MEDIUM KULTIVASI Geraldi Rahanra; Ivonne Telussa; Ervina Rumpakwakra; Alif Nur Laili Rachmah; Sabrianah Baddarudin; Tamaratritania Citta Trisnantari; Muhammad Ikhsan Taipabu
CHEMTAG Journal of Chemical Engineering Vol 7, No 1 (2026): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v7i1.7040

Abstract

Limbah cair pengolahan sagu dan tahu mengandung nutrien yang berpotensi dimanfaatkan untuk kultivasi Chlorella sp. Karakterisasi meliputi pH, Chemical Oxygen Demand (COD), total karbon (TC), total nitrogen (TN), dan total fosfor (TP), kemudian limbah cair ditambahkan ke dalam medium NaCl salinitas 28 ppt. Kultivasi dilakukan selama 24 hari pada intensitas cahaya 5000 lux dengan fotoperiode 12:12 jam. Air limbah pengolahan tahu menunjukkan kandungan nutrien lebih tinggi dibandingkan air limbah pengolahan sagu, dengan COD masing-masing 23,49 mg/L dan 12,65 mg/L. Konsentrasi sel maksimum diperoleh pada medium kontrol (MK) sebesar 38 × 10⁵ sel/mL (hari ke-21), diikuti perlakuan suplementasi air limbah pengolahan tahu (MLT) sebesar 34 × 10⁵ sel/mL dan air limbah pengolahan sagu (MLS) sebesar 24,9 × 10⁵ sel/mL. Suplementasi limbah cair tidak meningkatkan pertumbuhan dibandingkan kontrol, yang dapat dipengaruhi oleh kondisi pH asam, rasio C:N yang rendah, serta salinitas tinggi yang berpotensi menimbulkan stres osmotik. Meskipun demikian, kedua jenis limbah tetap mampu mendukung pertumbuhan mikroalga dan menunjukkan potensi integrasi kultivasi mikroalga dengan pengolahan limbah cair secara berkelanjutan.
Co-Authors Alzagladi, Safina Utari Ansori Ansori Ansori Ansori Ayu Qurota A’yun Badaruddin, Sabrianah Binti Ruliana Ervina Rumpakwakra Esther Muatiara Santallum Ekklesia Tibalia Gede Wiratma Jaya Geraldi Rahanra Gessantara, M. Febbia Hapsari, Farida Diyah Indahma Puji Lestari Ivonne Telussa Muhammad Ikhsan Taipabu Nggolaon, Delpina Ratih C F Ratumanan Ratri Sekaringgalih Ratumanan , Ratih C F Ronald Darlly Hukubun Ruliana, Binti Sonya Hakim Raharjo Taipabu, Muhammad Ikhsan Tan, Clarissa Trisnantari, Tamaratritania Citta Yuni Susanti