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All Journal Jurnal Sains Materi Indonesia Kinetika Innovative: Journal Of Social Science Research Asian Journal of Social and Humanities Serambi Engineering
Martha Aznury
Politeknik Negeri Sriwijaya
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Public Health Other

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Pengaruh Variasi Enzim Lipase Amobil Terhadap Rasio Mol CPO: Metanol Pada Transesterifikasi Putri Dania, Elisabeth; Aznury, Martha
Jurnal Serambi Engineering Vol. 10 No. 4 (2025): Oktober 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Biodiesel is a renewable and environmentally friendly alternative fuel that can be produced from vegetable oils such as Crude Palm Oil (CPO). This study aims to evaluate the effect of varying the mass of immobilized lipase enzyme (12–16 grams) and the molar ratio of CPO to methanol (1:4 and 1:6) on the quality of biodiesel produced through a transesterification process using a Packed Bed Reactor. The process stages include degumming, neutralization, and transesterification at a reaction temperature of 40°C for 6 hours. Immobilized lipase was chosen as the biocatalyst due to its ability to operate under mild conditions and produce high-quality biodiesel without generating harmful waste. The best result was achieved at a 1:4 molar ratio and 15 grams of enzyme, producing biodiesel with a density of 875.67 g/cm³, viscosity of 3.97 mm²/s, saponification value of 177.65 mg KOH/g, acid value of 0.32 mg KOH/g, iodine value of 48.05 g I₂/100 g, cetane number of 66.21, yield of 90.20%, and methyl ester content of 97.31%. All parameters met the Indonesian National Standard (SNI 7182:2015).
Pengoptimalan Pengolahan Air Pada Proses Koagulasi dengan Kombinasi Bahan Kimia Aluminium Sulfat dan Poly Aluminium Chloride PT. Tirta Sriwijaya Maju (Perseroda) Palembang Muhajir, Ahmad; Junaidi, Robert; Aznury, Martha
Innovative: Journal Of Social Science Research Vol. 4 No. 5 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i5.13359

Abstract

PT Tirta Sriwijaya Maju (TSM) is a clean water provider company operating in Palembang City. The TSM Water Treatment Plant (WTP) processes surface water from the Musi River with a total capacity of 230 liters/second. However, the TSM WTP is facing a shortage of clean water supply due to an increase in demand from new customers. This has led to a decrease in the duration of water flow to customers' homes. This problem is caused by 5% of the byproducts being sludge and wastewater, as well as the filter washing process that causes production to stop for 30 minutes three times a day. Therefore, this study aims to analyze the use of a combination of aluminum sulfate and poly aluminum chloride coagulants to reuse the sludge and minimize filter washing, in order to improve water treatment performance at the TSM WTP. The analysis results show that the alum and PAC dose ratio of 3:1 and 4:1 produced the highest turbidity reduction, which are 85.1% and 91.3%, as well as good floc formation. Thus, the use of this coagulant combination can be a solution to increase the productivity of the TSM WTP in providing sustainable clean water supply.
Analysis of the Independent and Sustainable Waste Recycling Center Program (PADU PADAN) from PT Pertamina EP Prabumulih Field CSR Rosadi, Hengky; Luthfi, Muhammad; Hendra Putra, Erwin; Wahyu Tomo, Almira Chairunissa; Saddam Husen, Mohammad; Aznury, Martha; Lestari, Sari; Marieska, Marieska; Ratna Sari, Dewi; Ripandi, Irfan
Asian Journal of Social and Humanities Vol. 2 No. 9 (2024): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v2i9.322

Abstract

The waste problem has become a disturbing problem in Prabumulih City. In Prabumulih City, there is over capacity at the Final Disposal Site. This is because the volume of waste coming in is very large and has not been managed well. The impact is very negative from an environmental, economic and social perspective. CSR PT Pertamina EP Prabumulih Field is participating in overcoming this through Program Pusat Daur Ulang Sampah Mandiri dan Berkelanjutan (PADU PADAN) as a community development (comdev) program. This research method is in the form of a qualitative field study or field research. The data collection techniques were carried out using observation with active participation, in-depth interviews, documentation and focus group discussions. The research results show: Program Pusat Daur Ulang Sampah Mandiri dan Berkelanjutan (PADU PADAN) program is an educational activity for sorting and processing organic and anorganic waste into marketable products. This program is under the auspices of the CSR of PT Pertamina EP Prabumulih Field in South Sumatra. Program Pusat Daur Ulang Sampah Mandiri dan Berkelanjutan (PADU PADAN) consists of two main programs, namely: 1) Perempuan Berdaya Bersama Kelola Sampah (MUDA BERSAMA), 2) Rumah Inovasi Daur Ulang Sampah Residu Anorganik (RINDU RESIK). The Muda Bersama Program specifically processes organic waste, while the Rindu Resik Program is a process for handling anorganic waste. These two programs have a positive impact on society both from an economic, social and environmental perspective.
Co-Authors ., Sofiah ., Yuniar Abu Hasan Ahmad Muhajir, Ahmad Elfrida Ratnawati Fadarina Fiyansah, Toni Okta H.C, Fadarina Hendra Putra, Erwin Ibnu Hajar Indah Purnamasari Marieska, Marieska Mawarni, Tri Muhammad Luthfi Nurjanah, Rizki Putri Dania, Elisabeth Rahmaniar Rahmaniar, Rahmaniar RATNA SARI, DEWI Resky, Resky Ripandi, Irfan Robert Junaidi Rosadi, Hengky Saddam Husen, Mohammad Sari, Rezki Prima Serlina, Ayu Syamsiar, Syamsiar Wahyu Tomo, Almira Chairunissa Zaman, Muhammad