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All Journal Journal of Degraded and Mining Lands Management JOURNAL ONLINE OF PHYSICS SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Chemistry Indonesian Journal of Chemical Research Archipelago Engineering Journal of Green Chemical and Environmental Engineering
Taipabu, Muhammad Ikhsan
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Identification of seawater intrusion based on geochemical data in Pelauw-Kariu Region, Maluku Rumpakwakra, Ervina; Jaya, Gede Wiratma; Bahri, Samsul; Ramahdan, Aditya; Zulfiah, Zulfiah; Thohirah, Afifah; Taipabu, Muhammad Ikhsan
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.5575

Abstract

Groundwater is utilized as a clean water source including in Pelauw and Kariu Villages. Drilling and excavating are frequent techniques utilized in the construction of wells that serve as sources of groundwater. As a result of the ocean encircling the majority of this area, salinity may infiltrate wells. Consequently, the purpose of this study was to ascertain whether seawater intrusion had occurred in 12 nearby wells. Major ion tests were carried out in the lab, while surveys and measurement fields were carried out for the sampling procedure. Ion Cl, EC, TDS, Simpson ratio, and BEX data are used in the analysis to determine whether seawater intrusion is present. Additionally, the Piper diagram is used to categorize different types of water based on the outcomes of the main ion test. The findings indicated that Cl-, EC, and TDS levels have increased at a number of the sampling sites. At point A09, there is an indication of seawater intrusion based on the BEX values, which shows a negative number. The majority of the well water, as determined by a water classification analysis using the Piper diagram, is of the calcium carbonate type. Meanwhile, the remaining portion is separated into the calcium sulfate and sodium bicarbonate types.
Bioethanol Production From Tropical Marine Microalgae Ambon Bay Navicula sp. of The Inner Ambon Bay Strain Telussa, Ivonne; Fransina, Eirene G.; Singerin, Joisana; Taipabu, Muhammad Ikhsan
Indonesian Journal of Chemical Research Vol 10 No 3 (2023): Edition for January 2023
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2023.10-ivo

Abstract

Microalgae are photosynthetic microorganisms that contain carbohydrates can be converted into glucose through a hydrolysis process so that they can be used as raw materials for bioethanol production. Navicula sp. strain TAD is a type of marine microalgae that is spread in the inner Ambon Bay (TAD) sea waters and is used to manufacture bioethanol. This study aims to determine the content of carbohydrates and bioethanol produced from tropical marine microalgae Ambon bay Navicula sp. strain TAD. The research was conducted through several stages, namely the cultivation of Navicula sp. strain TAD to obtain biomass, determine carbohydrate content in biomass, hydrolyze biomass and manufacture bioethanol through a fermentation process using Saccharomyces cerevisiae. The results showed that Navicula sp. strain TAD cultivation for seven days had the highest cell density of 72.167 × 105 ± 0.946 cells mL-1 with dry biomass of 0.933 ± 0.062 g and productivity of 0.166 ± 0.011 gL-1 hour-1. The sulfuric acid hydrolysis process was analyzed for a sugar content of 146.5695 ± 0.758 mg. A fermentation process follows the results of the hydrolysis to produce bioethanol. The bioethanol content obtained was 6.357%. These indicated that Navicula sp. strain TAD has the potential to produce bioethanol
PERHITUNGAN NILAI ENERGI CELAH PITA MINYAK KAYU PUTIH MENGGUNAKAN DATA PENGUKURAN SPEKTROFOTOMETER UV-VIS Jaya, Gede Wiratma; Nggolaon, Delpina; Rumpakwakra, Ervina; Rachmah, Alif Nur Laili; Rahanra, Geraldi; Taipabu, Muhammad Ikhsan; Trisnantari, Tamaratritania Citta; Badaruddin, Sabrianah
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 2 (2025): JOP (Journal Online of Physics) Vol 10 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i2.41575

Abstract

Minyak kayu putih merupakan salah produk pengolahan yang sering dimanfaatkan dalam kehidupan sehari-hari. Penelitian minyak kayu putih sebagian besar fokus pada uji kualitas berdasarkan Standar Nasional Indonesia (SNI) 3954:2014 dan 06-3954-2001. Penelitian ini bertujuan untuk mengetahui energi celah pita minyak kayu putih dari berbagai macam produk. Sampel penelitian sebanyak tiga sampel yang berasal dari produk peyulingan di Pulau Buru (sampel A), toko oleh-oleh (sampel B), dan swalayan (sampel C) di Kota Ambon. Ketiga sampel dilakukan pengukuran serapan panjang gelombang menggunakan spektrofotometer UV-Vis. Hasil pengukuran digunakan untuk menghitung nilai energi celah pita menggunakan metode Tauc Plot dengan transisi langsung Energi celah pita untuk sampel A, B, dan C masing-masing sebesar 3,404 eV, 3,348 eV, dan 3,722 eV. Hasil perhitungan menunjukkan minyak kayu putih memiliki potensi sebagai material pendukung dalam Dye Sensitized Solar Cell (DSSC). Hal ini dikarenakan nilai energi celah pita yang dihasilkan masih berada di area semikonduktor.
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.
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.
Peningkatan keterampilan siswa melalui pelatihan pengolahan limbah ampas sagu menjadi pupuk organik cair di SMAS Muhammadiyah Mamala, Maluku Tengah Rachmah, Alif Nur Laili; Badaruddin, Sabrianah; Trisnantari, Tamaratritania Citta; Rahanra, Geraldi; Taipabu, Muhammad Ikhsan; Makoy, Charis Gladi Iman
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 2 (2026): April (In Progress)
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i2.38675

Abstract

Abstrak Desa Mamala, Kabupaten Maluku Tengah, menghasilkan limbah ampas sagu dalam jumlah besar yang belum dimanfaatkan secara optimal dan berpotensi mencemari lingkungan. Padahal, limbah tersebut memiliki kandungan bahan organik yang tinggi sehingga berpotensi diolah menjadi pupuk organik cair (POC) yang ramah lingkungan dan bernilai ekonomi. Kegiatan pengabdian kepada masyarakat ini dilaksanakan oleh tim dosen dan mahasiswa Program Studi Teknik Kimia Universitas Pattimura dengan tujuan meningkatkan pengetahuan, keterampilan, serta kesadaran lingkungan siswa dan guru SMAS Muhammadiyah Mamala. Metode pelaksanaan meliputi koordinasi dengan pihak sekolah, sosialisasi pemanfaatan limbah ampas sagu, pelatihan pembuatan POC, serta evaluasi malalui penyebaran kuesioner. Hasil kegiatan menunjukkan peningkatan pemahaman dan keterampilan peserta, yang ditunjukkan oleh respon positif (sangat setuju dan setuju) sebesar 93,75%–100% pada sebagian besar indikator. . Antusiasme peserta sampasma pelatihan juga mendorong munculnya inisiatif pemanfaatan POC di lingkungan sekolah. Program ini berkontribusi dalam meningkatkan kesadaran lingkungan, memperkuat pembampasjaran berbasis potensi lokal, serta mendukung penerapan ekonomi sirkular di masyarakat. Kata kunci: ampas sagu; limbah organik; keterampilan siswa; pelatihan; pupuk organik cair. Abstract Mamala Village, Central Maluku Regency, produces a large amount of sago pulp waste that has not been optimally utilized and has the potential to cause environmental pollution. In fact, this waste contains high organic matter and has the potential to be processed into liquid organic fertilizer (LOF), which is environmentally friendly and economically valuable. This community service activity was conducted by lecturers and students from the Department of Chemical Engineering, Pattimura University, with the aim of improving the knowledge, skills, and environmental awareness of students and teachers at SMAS Muhammadiyah Mamala. The implementation methods included coordination with the school, socialization on the utilization of sago pulp waste, technical training on the production of LOF, and evaluation through questionnaires. The results of the activity indicate an improvement in participants’ understanding and skills, as evidenced by positive responses (strongly agree and agree) ranging from 93.75% to 100% across most indicators. . Participants’ enthusiasm during the training also encouraged initiatives to utilize LOF within the school environment. This program contributes to enhancing environmental awareness, strengthening learning based on local potential, and supporting the implementation of a circular economy in the community. Keywords: sago waste; organic waste; student skills; training; liquid organic fertilizer.
Co-Authors Aditya Ramadhan Alif Nur Laili Rachmah Alzagladi, Safina Utari Badaruddin, Sabrianah Ervina Rumpakwakra Esther Muatiara Santallum Ekklesia Tibalia Fransina, Eirene G. Gede Wiratma Jaya Geraldi Rahanra Hapsari, Farida Diyah Ivonne Telussa Makoy, Charis Gladi Iman Nggolaon, Delpina Singerin, Joisana Tan, Clarissa Thohirah, Afifah Trisnantari, Tamaratritania Citta Veithzal Rivai Zainal Zulfiah, Zulfiah