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All Journal Journal of Mechanical Science and Engineering IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia Jurnal Penelitian Sains JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan Al-Kimia IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Jurnal Teknik Kimia Journal of Applied Materials and Technology JURNAL REKAYASA KIMIA & LINGKUNGAN Multidisciplinary Indonesian Center Journal
Susila Arita
Chemical Engineering Department Faculty Of Engineering Sriwijaya University
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Other

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Pengoptimalan limbah kulit buah sebagai pupuk organik cair dengan molase dan bioaktivator EM4 untuk peningkatan produktivitas pertanian Wahyuningsih, Dwi Retno; Cundari, Lia; Komariah, Leily Nurul; Arita, Susila; Alisan, Cinthya Putri; Andini, Handalia Putri; Putri, Anisyah Kamila; Sinta, Eis Candra
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 7 No 2 (2024)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v7i2.20971

Abstract

Sisa hasil perkebunan, khususnya pada komponen yang tidak terpakai seperti kulit buah-buahan dapat dimanfaatkan menjadi pupuk organik cair dengan penambahan EM4, molase, dan air cucian beras. Pengabdian ini dilaksanakan di Desa Tanjung Pering, Kecamatan Indralaya Utara, Kabupaten Ogan Ilir, Sumatera Selatan. Desa Tanjung Pering sebagian besar penduduknya bermata pencaharian sebagai petani, sehingga memiliki potensi tanaman yang berlimpah. Metode dalam riset berbasis pengabdian ini dilaksanakan melalui metode Participatory Rural Approach (PRA). PRA merupakan metode pendidikan berbasis masyarakat melalui program penyuluhan, pelatihan, demonstrasi, dan pendampingan. Variabel tetap yang ditentukan dalam percobaan ini yaitu jumlah limbah kulit buah-buahan dan volume air cucian beras. Variabel bebas yang digunakan yaitu volume EM4 dan molase. Hasil dari riset berbasis pengabdian masyarakat, menunjukan kondisi optimum pupuk organik cair yaitu dengan konsentrasi EM4 sebanyak 20 ml dan molase 10 ml.  Dari hasil riset berbasis pengabdian masyarakat ini juga pembuatan pupuk organik cair menggunakan limbah kulit buah-buahan dapat digunakan secara efektif sebagai pupuk dan dapat diaplikasikan ke tanaman cabai yang terbukti dengan meningkatnya jumlah daun sebanyak 67% dan tinggi tanaman sebanyak 73%. Pengabdian ini dapat menjadi kegiatan berkelanjutan untuk menghasilkan pupuk organik cair dari limbah dan pemanfaatannya bagi pertanian di Desa Tanjung Pering.
Analysis of Water Pollution Levels in Batang Masumai River, Merangin Regency, Jambi Province Astuti, Syurmi; Saleh, Muhammad Irsan; Arita, Susila; Legiran
Indonesian Journal of Environmental Management and Sustainability Vol. 8 No. 4 (2024): December
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2024.8.4.172-183

Abstract

Water pollution is a pressing environmental issue that adversely affects aquatic ecosystems and the usability of water resources. The Batang Masumai River, located in Merangin Regency, Jambi Province, is an essential water source for local communities but faces escalating pollution challenges due to industrial, agricultural, and residential activities. This study analyzes the pollution levels of the Batang Masumai River by assessing seven key parameters: temperature, pH, Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), and Chemical Oxygen Demand (COD). A quantitative observational approach was employed, utilizing secondary data collected from 2021 to 2024. The results were evaluated against Class II water quality standards as stipulated in Government Regulation Number 22 of 2021. The findings indicate that while parameters such as temperature and pH generally adhered to acceptable standards, others, notably TSS, BOD, and COD, frequently exceeded the regulatory limits, particularly in 2021. This suggests substantial pollution stemming from untreated wastewater and soil erosion. Although improvements were observed in subsequent years, several parameters remained problematic, posing ongoing risks to aquatic ecosystems and water resource sustainability. These findings underscore the urgent need for enhanced wastewater treatment systems, stricter enforcement of environmental regulations, and the adoption of sustainable watershed management practices to restore and safeguard the ecological health of the river.
Evaluating Heavy Metal Pollution In The Batang Masumai River Water, Merangin District, Jambi Province Using The Heavy Metal Pollution Index/HPI Astuti, Syurmi; Irsan Saleh, Muhammad; Arita, Susila; Legiran, Legiran
JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan Vol 22 No 2 (2025): Jurnal Kesehatan Lingkungan Volume 22 No. 2, Juli 2025
Publisher : Poltekkes Kemenkes Banjarmasin Jurusan Kesehatan Lingkungan Banjarbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31964/jkl.v22i2.1061

Abstract

River water pollution has become a major concern, particularly in regions where human activities occur without proper regulation. This study investigates heavy metal contamination in the Batang Masumai River, Merangin Regency, Jambi Province, where local residents conduct mining near the riverbanks. Water samples were taken from upstream, midstream and downstream, then analyzed using Atomic Absorption Spectrometry (AAS) to detect concentrations of seven metals: mercury (Hg), cadmium (Cd), nickel (Ni), iron (Fe), copper (Cu), manganese (Mn), and lead (Pb). Heavy metals  are among the most dangerous pollutants due to their toxicity, persistence, and impact on human health Pollution levels were evaluated through the Heavy Metal Pollution Index (HPI) and compared with SNI 6242:2015 and WHO 2022 standards. The results showed that cadmium, nickel, iron, and mercury exceeded allowable limits. The HPI results reflect a serious level of water pollution. Based on the 2015 SNI standard, the HPI scores are 214.45 for downstream, a striking 57893.41 for midstream, and 120.61 for upstream. Using the the WHO 2022 criteria, the values are 486.03 (downstream), 4.186.55 (midstream) and 267.83 (upstream). Except for the upstream based on SNI 6242:2015, all areas show high contamination levels (HPI ≥ 200), highlighting a concerning environmental issue. Mercury and cadmium, known for their high toxicity and bioaccumulation potential, were the most concerning. These findings underscore the urgent need for remediation efforts, continuous environmental monitoring, and increased public awareness to protect aquatic ecosystems and ensure the safety of water resources for surrounding communities.
Comparison Effect of Pyrolysis of Eucalyptus Pellita Bark and Empty Fruit Bunches of Oil Palm to Bio-Oil Asof, Marwan; Arita, Susila; Andalia, Winny
Jurnal Rekayasa Kimia & Lingkungan Vol 18, No 2 (2023): Jurnal Rekayasa Kimia & Lingkungan (December, 2023 )
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v18i2.32247

Abstract

The use of eucalyptus pelitta (EP) biomass waste and empty fruit bunch of oil palm(EFB) as raw materials for bio-oil is expected to overcome the existing solid waste problems, reduce pollution due to air pollution, and can produce gas and bio-oil which have potential. as new and renewable energy. This study aims to determine the effect of the type of raw material and temperature regulation on the results of pyrolysis products and the characteristics of the resulting bio-oil. The set temperatures used were 300C, 350C, 400C, 450C, and 500C with the raw materials being Eucalyptus pellita (EP) bark biomass and empty fruit bunches of oil palm (EFB). Pyrolysis that occurs with the equipment configuration used a heating rate of 7-14C/minute, where the main reaction of pyrolysis occurs at a temperature of 150C to 270C so that the set temperature does not have a large effect on the yield or characteristics of bio-oil. EP pyrolysis produced an average bio-oil yield of 41.64%, while EFB pyrolysis produced an average bio-oil yield of 46.72%. Bio-oil produced by pyrolysis of EP has a characteristic average value for density of 1.062362 gr/mL, viscosity of 2.1749 cP, and pH 2-3. Meanwhile, bio-oil produced by pyrolysis of EFB has a characteristic average value for density of 1.043146 gr/mL, viscosity of 1.3582 cP, and pH 3-4. EP bio-oil has a composition of C7-C10 carbon, while EFB bio-oil has a composition of C6-C19 carbon.
Adsorption of Mercury Using Different Types of Activated Bentonite: A Study of Sorption, Kinetics, and Isotherm Models Naswir, Muhammad; Jalius, Jalius; Natalia, Desfaur; Arita, Susila; Wibowo, Yudha Gusti
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 2 (2020): Jurnal Rekayasa Kimia & Lingkungan (December, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i2.17784

Abstract

Mercury is a hazardous element because of its toxicity and harmful effects on human health. Various traditional and low-cost methods have been developed to remove mercury from wastewater. This study used local raw material as an alternative adsorbent to treat mercury-contaminated wastewater. Activated bentonite was prepared using different chemical activators (H3PO4, HCl, and ZnCl2) in various concentrations. Then, it was dried at 200C for an hour. The materials were characterized by SEM-EDS. Its percent removal and isotherm models were analyzed. In this study, the most effective activator was H3PO4 and the experimental data matched the Freundlich model.
Fly ash adsorbent for ph improvement and manganese reduction in acid mine drainage Nurlela; Agustina, Tuty Emilia; Arita, Susila; Bahrin, David; Gayatri, Rianyza
Journal of Applied Materials and Technology Vol. 7 No. 1 (2025): September 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.7.1.41-48

Abstract

Metal solid waste from coal combustion (fly ash) is abundant in Indonesia, as an effective and economical adsorbent in neutralizing acid mine drainage (AMD). Given that the continuous utilization of coal produces environmental challenges in the form of AMD containing acid residues and heavy metals such as manganese (Mn), an appropriate treatment solution is required. The adsorption method was chosen due to its simplicity, cost effectiveness, and ability to remove heavy metal pollutants. The purpose of this research is to characterize fly ash before and after heating by SEM and XRD analysis, and evaluate the effect of fly ash physical activation temperature by heating at 100oC and 200oC for an interval of 60 minutes on the characteristics and adsorption ability of fly ash. In addition, this study also evaluated the effectiveness of the adsorbent mass (fly ash before heating and after heating) in increasing pH and reducing Mn concentration in AMD so that it meets the quality standards of Class 1 river water. The results obtained from this study show a fundamental difference in the properties of fly ash before and after heating. Based on BET analysis, the physical activation process resulted in pore enlargement (0.196 nm) and increased surface area of the adsorbent (0.847 m2/g), which significantly affected its binding capacity to solutes (adsorption capacity). The application of fly ash as an adsorbent showed the ability to increase the pH value of acid mine drainage towards neutral conditions. The process of reducing heavy metal ions Mn by using 50 g of fly ash heating at 100oC and 200oC, resulted in a removal percentage of 94.74% and 98.44%. It is hoped that this research can provide innovative and sustainable AMD treatment and increase the use value of fly ash waste.
Properties and Utilization of Fly Ash for Treating Acid Mine Drainage Nurlela; Agustina, Tuty Emilia; Arita, Susila; Bahrin, David; Fatimura, Muhrinsyah; Masriatini, Rully; Gayatri, Rianyza
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 4 (2025): December
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2025.9.4.223-232

Abstract

The combustion of coal in power plants (PLTU) generates fly ash containing silica dioxide (SiO?) and alumina (Al?O?), which exhibit promising properties as adsorptive materials. Fly ash, typically regarded as an industrial by-product, has been widely explored for its application as an adsorbent in wastewater purification. One of the most challenging wastewaters is acid mine drainage, characterized by strong acidity (pH < 5), residual contaminants, and elevated concentrations of heavy metal ions such as manganese (Mn) and iron (Fe). When released untreated, this effluent poses significant risks to both surface and groundwater quality in mining areas. This study focuses on the characterization and utilization of fly ash as an adsorbent to neutralize acidity and reduce Mn and Fe concentrations in acid mine drainage. The material was characterized using SEM-EDX and XRD techniques, followed by adsorption experiments. To enhance its properties, fly ash underwent physical activation through heating at 100 °C for 60 minutes. The activation process modified its structure, expanding pore volume and increasing surface area, thereby improving adsorption performance. The experimental results revealed significant differences in the properties of fly ash before and after activation. Activated fly ash effectively raised the pH of acid mine drainage to near-neutral conditions while achieving removal efficiencies of 96.61% for Mn and 83.33% for Fe using 50 g of adsorbent. These findings highlight the potential of fly ash as a low-cost and effective material for acid mine drainage treatment, both for acidity control and heavy metal removal.
PHYSICAL ENVIRONMENTAL INFLUENCES ON SILICOSIS: A NARRATIVE REVIEW INTEGRATING COMMUNITY EXPOSURE AND WISTAR RAT EXPERIMENTAL FINDINGS IN COAL-HANDLING REGIONS Mustika Fatimah; Irsan Saleh; Susila Arita; Legiran
Multidisciplinary Indonesian Center Journal (MICJO) Vol. 2 No. 4 (2025): Vol. 2 No. 4 Edisi Oktober 2025
Publisher : PT. Jurnal Center Indonesia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62567/micjo.v2i4.1808

Abstract

Coal mining, handling, and transportation activities are major sources of airborne particulate matter containing respirable crystalline silica, which poses significant risks to respiratory health. Silicosis remains a serious occupational and environmental disease affecting not only workers but also communities living near coal-handling areas. Physical environmental factors, including air quality, temperature, humidity, and wind speed, play an important role in influencing dust generation, dispersion, and inhalation exposure. This narrative review aims to synthesize current evidence on the influence of physical environmental conditions on silica exposure and silicosis development, integrating findings from environmental monitoring studies, epidemiological research, and experimental Wistar rat models. A literature search was conducted using major scientific databases to identify relevant peer-reviewed articles published between 2010 and 2024. The reviewed evidence indicates that prolonged or high-intensity exposure to silica dust is strongly associated with chronic pulmonary inflammation and progressive fibrosis. Environmental conditions can exacerbate exposure risk by increasing airborne particulate concentrations and respiratory vulnerability. Experimental studies using Wistar rats provide mechanistic insights into silica-induced lung injury, supporting epidemiological observations in human populations. This review highlights the importance of integrating environmental, occupational, and biological perspectives to improve risk prediction, early detection, and preventive strategies for silicosis in coal-handling regions.
Valorization of Palm Empty Fruit Bunch-Derived K₂CO₃ Catalyst: Structural Analysis and Application in Biodiesel Production Arita, Susila; Fitriyanti, Reno; Komariah, Leily Nurul; Hadiah, Fitri
Science and Technology Indonesia Vol. 11 No. 2 (2026): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.2.420-435

Abstract

This study investigates the synthesis and performance of a K2CO3 catalyst derived from oil palm empty fruit bunch (EFB) ash for sustainable biodiesel production. X-ray Diffraction (XRD) revealed a dominant K2CO3 crystalline phase, while X-ray Fluorescence (XRF) confirmed a high potassium content (>40%). Despite its low surface area (0.11 m2/g), the catalyst demonstrated high transesterification activity, achieving an optimal biodiesel yield of 85.89% with 3 grams of catalyst. Its high thermal stability, strong base sites, and macroporous structure all contributed to enhanced catalytic efficiency. Sustainability and techno-economic assessments indicate the catalyst’s potential to reduce production costs, utilize biomass waste, and lower greenhouse gas emissions. Thus, the EFB ash-based K2CO3 catalyst shows significant promise for supporting environmentally friendly biodiesel production and contributing to the transition to a green economy and renewable energy.
Co-Authors Abrar Assalami Abrar Assslami Akhmad Ade Sucitro Aldes Lesbani Alisan, Cinthya Putri Andini, Handalia Putri Astuti, Syurmi Cundari, Lia David Bahrin Dede Hadi Widianto Desfaur Natalia Desyandri Desyandri Dina Irawaty Naibaho Dina Irawaty Naibaho Endi Adriansyah Fatimura, Muhrinsyah Fitri Hadiah Fitri, Erni Salasia Fitriyanti, Reno Gayatri, Rianyza Harminuke E.H. Hasbun Kosim Hermansyah Hilda Zulkifli Irnanda Pratiwi Irsan Saleh Irsan Saleh, Muhammad Ivana Liony Jalius Jalius Jalius Jalius Legiran Legiran Leily Nurul Komariah Lutfia Rahmiyati Luthfia Luthfia Marwan Asof Marwan Asof Marwani Zahri Kadir Muhammad Naswir Muhammad Rifqi MUSTIKA FATIMAH Naswir, Muhammad Natalia, Desfaur Nurlela Oki Alfernando Oki Alfernando Putri, Anisyah Kamila Rico Januar Sitorus Rika Damayanti Risa Purnama Sari Risfidian Mohadi Rosmawati Rosmawati Rully Masriatini Salam, Yosirham Abdu Saleh, Muhammad Irsan Sinta, Eis Candra Siti Hardianti Siti Miskah Tirtasakti Nugroho Tuty E. Agustina Tuty Emilia Agustina Wahyudi, Arie wahyuningsih, dwi retno Wibowo, Yudha Gusti Winny Andalia Zen, Muhammad Rizky