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All Journal Reaktor Jurnal Bahan Alam Terbarukan Bulletin of Chemical Reaction Engineering & Catalysis Widyariset INTEK: Jurnal Penelitian Widyariset Jurnal Teknik Kimia Indonesia Jurnal Riset Teknologi Pencegahan Pencemaran Industri Jurnal Ilmu Pengetahuan dan Teknologi (IPTEK) Journal of Bioresources and Environmental Sciences Journal of Bioresources and Environmental Sciences JURNAL REKAYASA KIMIA & LINGKUNGAN
E. Enjarlis
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Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics

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Evaluation of Total Hardness and Qualitative Analysis of Boiler Water at the Food Jam Industry, Tangerang, Indonesia Satrio Kuntolaksono; Imam Wicaksono; Febrianty Emilia; Enjarlis Enjarlis; Linda Aliffia Yoshi
Journal of Bioresources and Environmental Sciences Vol 1, No 3 (2022): December 2022
Publisher : BIORE Scientia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbes.2022.15826

Abstract

Food industry is one of the most crucial and rapidly growing economic sectors in Indonesia. One of the examples is the food jam industry. This industry was located in Tangerang, Indonesia. The majority of the food jam industry uses its own source of water, so this part is also important to water producers in Indonesia. Water used in the food jam industry should meet the requirements of at least drinking water quality, so the factories need to treat the water. Good quality water is water that requires good physical, chemical, and bacteriology properties. Hard water is a term known for water that contains a high concentration of minerals such as Calcium (Ca) and Mag-nesium (Mg). Moreover, water with very high degrees of hardness is harmful to health. In this study, we want to evaluate and determine the pH, total hardness, and total dissolved solids (TDS) at three different times namely morning, midday, and afternoon. The results obtained in the range of pH analysis are 6.98 to 7.99 with all cover times. The total hardness in the boiler water and the TDS are around 252.6 to 388.2 mg/L and 310 to 406 mg/L, respectively. These results indicated that it has fulfilled the requirements for total hardness values under the Minister of Health Regulations (Permenkes) No. 492/Menkes/Per/IV/2010.
Review: Potential of Oil Palm Empty Fruit Bunches Waste to Become an Ultrafiltration Membrane for Clean Water Treatment Yoshi, Linda Aliffia; Nurhalizah, Fauziah Fitri; Daranova, Daranova; Hariansyah, Najwa; Enjarlis, Enjarlis; Ismojo, Ismojo; Handayani, Sri
Journal of Bioresources and Environmental Sciences Vol 4, No 2 (2025): August 2025
Publisher : BIORE Scientia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/jbes.2025.19953

Abstract

The potential of oil palm empty fruit bunches (OPEFB) as a raw material for membrane production has not been fully explored. OPEFB waste contains a relatively high cellulose content, a natural polymer that can serve as a precursor for plastic and membrane synthesis. Membranes are semi-permeable barriers commonly employed in applications such as clean water purification and liquid waste treatment. To utilize cellulose from OPEFB, it must first be converted into cellulose acetate (CA) via an acetylation reaction. Cellulose acetate is a biodegradable polymer known for its hydrophilic nature, high chemical stability, and mechanical strength, making it a widely used material in membrane technology. Moreover, CA is suitable as a matrix for developing nanocomposite membranes with enhanced performance characteristics. Membranes are typically fabricated using the phase inversion technique, involving solvents such as acetone or dimethylformamide (DMF). The resulting membrane properties—including morphology, porosity, and chemical interactions—depend on the choice of polymer and additives in the casting solution. Additives such as nano-silica and polyethylene glycol (PEG) are often incorporated to improve tensile strength, increase hydrophilicity, and control pore size distribution. Optimizing the composition ratios of cellulose acetate, solvent, and additives is essential to achieve desirable properties, particularly for ultrafiltration (UF) applications. OPEFB offers promising potential as a sustainable, renewable resource for producing UF membranes, supporting circular economy principles and waste valorization in environmental applications.
The Ozonation Process for Increasing Value Added Tallow of Cow as A Polyol Yoshi, Linda Aliffia; Fitria, Nadya; Albana, Naufal Rozin; Enjarlis, Enjarlis; Wibawa, Agam Duma
INTEK: Jurnal Penelitian Vol 7 No 1 (2020): In Press
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (738.728 KB) | DOI: 10.31963/intek.v7i1.1604

Abstract

The purpose of this research is to produce polyol, through the ozonation process and to find the best catalysts and solvents for the formation of hydroxyl group. The hydroxyl group is indicator of the formation polyol. The process of making polyols is unsaturated fatty acids of the cow through the process of ozonation, using the solvents of sorbitol and glycerol, as well as catalysts of sulfuric acid and sodium hydroxide. The reaction temperature is run at 50oC and ozone levels are 4.33, 4.795, 5.021, 5.480 grams. The best results used a glycerol solvent, a sodium sulfate catalyst, and a 5.48 gram ozon content.
Kombinasi Proses Elektrokoagulasi Oksidasi Lanjut Berbasis O3/GAC Pada Limbah Cair Industri Batik Enjarlis, Enjarlis; Hartanto, Singgih; Christwardana, Marcelinus; Sijabat, Boy Frando; Fatlan, Ode Resa
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan (June, 2019)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v14i1.12274

Abstract

Gabungan proses Elektrokoagulasi-Oksidasi Lanjut (EC-OL) berbasis O3/GAC merupakan teknologi alternatif untuk mengolah limbah cair industri Batik. Limbah cair industri batik mengandung Bahan Berbahaya dan Beracun, mempunyai COD 500 - 3000 ppm, BOD 1200 ppm dan TSS 10.000 ppm serta tidak memenuhi Baku Mutu Lingkungan.Tujuan penelitian gabungan EC-OL pada limbah cair batik yaitu menentukan: (a) waktu optimum proses Elektrokoagulasi (EC), (b) dosis ozon dan jumlah karbon aktif yang tepat pada Oksidasi Lanjut berbasis O3/GAC (OL), dan (c) pengaruh gabungan proses Elektrokoagulasi-Oksidasi Lanjut (EC-OL) berbasis O3/GAC terhadap konstanta laju degradasi kontaminan organik (k) dalam limbah cair industri Batik. Pada gabungan proses EC-OL, untuk elektrokoagulasi digunakan elektroda Al, kuat arus 1 A tetap, dan waktu proses (20, 40 dan 60 menit) dan Oksidasi Lanjut (OL) dilakukan pada dosis ozon (0,0625; 0,125 dan 0,1875 gr O3/liter) dan massa GAC (10, 20 dan 30 gram). Parameter uji yang digunakan yaitu nilai COD, Total suspention solid (TSS) dan warna limbah. Dari hasil percobaan diperoleh: (a) waktu proses elekrtrokoagulasi terbaik selama 60 menit dengan penurunan COD 54 % dan TSS 31%, (b) pada proses OL berbasis O3/GAC diperoleh dosis ozon terbaik sebesar 0,125 gr O3/L dan massa GAC sebanyak 30 gram dengan penurunan COD 61,11% dan TSS 15,33% dan (c) Pada gabungan proses EC-OL penurunan COD terjadi sebesar 95,08% dan TSS 81,39% dan konstanta laju degradasi kontaminan organik sebesar 0,6931 min-1.
Co-Authors Agam Duma Kalista Wibowo Albana, Naufal Rozin Boy Frando Sijabat Daranova, Daranova Fatlan, Ode Resa Febrianty Emilia Fitria, Nadya Handayani, Sri Hariansyah, Najwa Imam Wicaksono Ismojo, Ismojo Latin Hanum Lalasari Linda Aliffia Yoshi, Linda Aliffia Marcelinus Christwardana Melati Zahra Nur Abrar Nurhalizah, Fauziah Fitri Ode Resa Fatlan Olivia Yolanda Bellanimalona Ratnawati Ratnawati Roekmijati Roekmijati Roekmijati W Soemantojo S Slamet S. Bismo S. Slamet Satrio Kuntolaksono Setijo Bismo Sijabat, Boy Frando Singgih Hartanto Singgih Hartanto Slamet Slamet Sri . Handayani Sri Handayani Sudirman Sudirma Yuli Amalia Husnil