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INDONESIA
IJEMS (Indonesian Journal of Environmental Management and Sustainability)
Published by ARTS Publishing
ISSN : 25986260     EISSN : 25986279     DOI : -
Core Subject : Health, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Energy Environmental Science Public Health
This journal aimed to be a platform for academics, regulators, practitioners, and also policy makers to share and discuss how to manage their surrounding environment in order to build and develop a sustainable environment. The scope of this journal includes all issues of fundamental environmental science, management, technology and related fields. In particular, the journal welcomes the following field: Waste and wastewater management, Air, soil, and water pollution, Climate change and its aspects, Natural energy and resources, Environmental policy and Risk analysis and assessment of public health.
Arjuna Subject : -
Articles 163 Documents
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Performance of Nickel Foam (NF) Cathode in Microbial Electro-synthesis System for Generating Methane and Acetate Production from CO2 Satar, Ibdal; Ahmed, Waled Abdo; Juwitaningtyas, Titisari; Syamsuddin, Arief; Majlan, Edy Haryanto; Bakar, Mimi Hani Abu; Kim, Byung Hong
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 2 (2025): June
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.2025.9.2.68-78

Abstract

The cathode material is one of the key factors in enhancing the overall performance of microbial electrosynthesis system (MES). Nickel-based materials are the best option for cathodes in MES due to their excellent catalytic activity. This study aims to evaluate the performance of nickel foam (NF) as self-cathode material in MES for acetate production from CO2. A biocatalyst at the cathode was provided using a mixed-culture of anaerobic sludge from palm oil mill effluent (POME). The field emission scanning electron microscopy (FE-SEM) was used to analyze the cathode surface morphology, while high-performance liquid chromatography (HPLC) was used to quantify the volatile fatty acids (VFAs) in the effluent. The results indicate that the self-cathode NF exhibited excellent performance, achieving an acetate production rate (QAcetate) of 46.0 mM/d, compared to 41.7 mM/d with a graphite felt (GF) cathode at a cathode potential of -0.8 V. Additionally, the self-cathode NF in the MES system demonstrated a coulombic efficiency (CE) of approximately 22.9%. Moreover, the type of cathode material and the microbial community attached to the cathode surface significantly influenced MES performance.
Photocatalytic Degradation of Diazinon in Aqueous Solutions Using ZnO Under Visible Light Irradiation: An Advanced Oxidation Process Approach Umam, Hilman Imadul; Pambudi, Teguh; Widianto, Eri; Yuliasari, Fitri; Putri, Fajar Amelia Rachmawati; Nandira, Rantika Sekar; Utami, Marsah Rahmawati
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
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.2025.9.3.105-114

Abstract

Diazinon is a commonly used organophosphate insecticide in agriculture, but its persistence in water and soil presents significant health and environmental concerns. This study investigates the photocatalytic removal of diazinon from aqueous solutions using zinc oxide (ZnO) nanoparticles activated by visible light irradiation. ZnO was chosen due to its excellent photocatalytic properties, including a direct band gap (~3.1 eV), strong oxidative capability, chemical stability, and non-toxic nature, making it a superior candidate for visible-light-driven environmental remediation. Photocatalytic degradation under sunlight was also assessed for comparison. Key operational parameters, such as photocatalyst dosage, solution pH, initial diazinon concentration, and irradiation time, were systematically optimized. The highest degradation efficiency degradation was achieved with 20 mg of ZnO, neutral pH, 30 mg/L an initial concentration, and 60 minutes of irradiation. Kinetic analysis revealed that the process followed zero-order reaction kinetics (k = 1.118; R2 = 0.9962). Notably, visible light irradiation was more effective than sunlight in degrading diazinon. These findings provide important details about the potential of ZnO nanoparticles as an efficient, low-cost, and environmentally friendly photocatalyst for remediating pesticide-contaminated water under sustainable energy conditions.
Acid-Activated Natural Clay for Fe(III) Adsorption: An Integrated Study of Mechanisms, Kinetics, and Thermodynamics Afandy, Moh. Azhar; Herliawan, Deden Jajang Harly; Nirwansyah; Sawali, Fikrah Dian Indrawati
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
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.2025.9.3.143-155

Abstract

The increasing contamination of water by Fe(III) ions from industrial activities, particularly in nickel-producing regions such as Morowali, presents serious environmental and public health concerns. Among various treatment approaches, adsorption stands out as an efficient and cost-effective method, especially using natural clay modified by acid treatment. This study aims to investigate the characterization, adsorption kinetics, and thermodynamic behavior of Fe(III) removal using acid-modified natural clay (NC) derived from Morowali. The clay was activated using sulfuric acid (H2SO4), followed by physicochemical characterization and batch adsorption experiments to assess its removal performance. Adsorption kinetics were analyzed using Pseudo-First Order (PFO), Pseudo-Second Order (PSO), Intraparticle Diffusion (IPD), and Liquid Film Diffusion (LFD) models to elucidate the adsorption mechanism. Furthermore, thermodynamic parameters such as Gibbs free energy (deltaG), enthalpy (deltaH), and entropy (deltaS) were calculated to determine the nature of the adsorption process. The results showed that NC exhibited a considerable adsorption capacity for Fe(III), with PSO providing the best kinetic fit, indicating chemisorption control. Thermodynamic analysis confirmed the spontaneous and endothermic nature of the process. These findings demonstrate the potential of acid-modified clay from Morowali as a low-cost and locally available adsorbent, contributing to sustainable water treatment strategies in industrial regions.
Exploration of Weak Acid Solvent Usage in the Separation of Aluminum (Al) from Multilayer Plastic Waste Selpiana, Selpiana; Haryani, Nina; Putri, Rizka Wulandari
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
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.2025.9.3.98-104

Abstract

Multilayer plastic waste is difficult to biodegrade, causing environmental problems. An alternative to processing multilayer plastic waste is to separate aluminum from the polymer using a delamination process with acid solvents. In this study, a combination of chemical (acid solvents), thermal (90oC), and mechanical (stirring at 300 rpm) methods was employed to evaluate the efficiency of delamination of multilayer plastic packaging. Several weak acid solvents, including acetic acid, citric acid, and formic acid, were tested at a concentration of 30% and a reaction time of 10 minutes. The method involved immersing cut multilayer plastic samples into acid solutions under controlled conditions, followed by filtration and drying to recover the aluminum layer. The best result was obtained using 30% formic acid, which successfully separated and recovered 0.940 g or 87% of aluminum from a 1.08 g multilayer sample. This process demonstrates an effective, relatively low-cost approach to enhance the recyclability of multilayer plastic waste, contributing to a more sustainable plastic waste management strategy.
Evaluation of Stainless-Steel Mesh 304 Cathode Performance in a Microbial Fuel Cell for Tofu Wastewater Treatment Satar, Ibdal; Uswatun Khasanah; Titisari Juwitaningtyas; Edy Herianto Majlan; Waled Abdo Ahmed; Byung Hong Kim
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
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.2025.9.3.134-142

Abstract

Currently, tofu wastewater (TWW) is one of the major environmental issues that must be addressed. When discharged untreated TWW into natural water bodies or soil, it poses a serious threat to the environment. Therefore, effective treatment of TWW is crucial before to disposal. As an advanced bio-electrochemical technology, the microbial fuel cell (MFC) offers a promising approach to reduce pollutants while simultaneously generating electricity. However, the choice of cathode material is crucial for enhancing MFC performance. This study aims to evaluate the performance of an MFC using an SSM-304 cathode with TWW as the target substrate. Several characteristics of TWW including pH, chemical oxygen demand (COD), biological oxygen demand (BOD), total solids (TS), total dissolved solids (TDS), and total suspended solids (TSS), were analyzed before and after MFC treatment. Additionally, the performance of the MFC system was further evaluated based on voltage output (V), current density (J), coulombic efficiency (CE), and MFC efficiency (?MFC). The results show that COD and BOD were reduced by 69.56% and 64.00%, while TS, TDS, and TSS increased by 48.79%, 32.24%, and 45.15%, respectively. The MFC system with SSM-304 produced a voltage of 167 mV, a current density of 267.2 mA/m², a coulombic efficiency of 3.35%, power density of 27.89 mW, and MFC efficiency of 10.43%. Overall, this study demonstrated the potential of MFCs for simultaneous wastewater treatment and energy recovery.
Driving Factors Influencing Watershed Management and Sustainability: A Systematic Review Taslim, Ivan; Basuni, Sambas; Purwanto, Moh. Yanuar Jarwadi; Santikayasa, I Putu
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
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.2025.9.3.115-133

Abstract

Watershed management and sustainability have gained significant global attention due to escalating environmental, socioeconomic, and governance challenges. This study presents a Systematic Literature Review (SLR) aimed at identifying and synthesizing key driving factors that influence watershed management and sustainability. A comprehensive search was conducted exclusively in the Scopus database, covering publications from 2013 to 2023. Through PRISMA-based screening and thematic analysis of 193 relevant studies, a total of 37 driving factors were identified. These factors were classified into three main domains: biophysical (7 factors), socio-economic (13 factors), and institutional (17 factors). The findings reveal that institutional factors are most prominently emphasized, followed by socio economic and biophysical dimensions. This synthesis provides a holistic understanding of the complex and interconnected elements that drive watershed sustainability. The insights derived are intended to inform future research, support evidence-based policymaking, and strengthen integrated watershed management practices across diverse geographic and socio-political contexts. The search employed multiple keyword combinations, including ”watershed”, ”catchment”, ”river basin”, ”drivers”, ”influencing factors”, and ”determinants”, ensuring broader thematic coverage within the Scopus database.
Hydrochar Derived from Pennisetum setaceum for Congo Red Adsorption: A Low-Cost Bioadsorbent from Invasive Grass Karvenia, Icha Aulia; Royani, Idha; Mohadi, Risfidian
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
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.2025.9.3.156-170

Abstract

This study investigates the adsorption performance of hydrochar derived from Pennisetum setaceum (PS) through hydrothermal treatment at 250°C for various reaction times (1-4 hours) for the removal of Congo Red (CR) dye from aqueous solutions. The materials were characterized using FTIR, XRD, SEM–EDS, BET, and pHpzc analysis to evaluate changes in functional groups, crystallinity, morphology, elemental composition, and surface charge. FTIR spectra confirmed the presence of oxygen-containing functional groups (O-H, C=O, C-O-C, C-O), while XRD patterns indicated a transition from amorphous to partially crystalline structures, followed by re-amorphization at longer reaction times. SEM images revealed a progressive increase in porosity and surface roughness, accompanied by an increase in carbon content, as shown by EDS. BET analysis of HPS-4 further confirmed its mesoporous structure with a surface area of 9.316 m2/g, which supports enhanced adsorption performance. Adsorption experiments demonstrated that the optimum pH for CR removal by HPS-4 was 5, with a maximum capacity of 51.674 ± 5.468 mg/g. Kinetic studies followed the pseudo-first-order model, and equilibrium data fitted well with the Langmuir isotherm, indicating monolayer adsorption. Thermodynamic analysis showed the process was spontaneous and exothermic (?H° = ?44.07 kJ/mol). The proposed adsorption mechanism involves a combination of electrostatic attraction, hydrogen bonding, and ?–? interactions between CR molecules and the aromatic structure of hydrochar. However, regeneration tests indicated a significant decrease in efficiency after the third cycle. These findings suggest that hydrochar from Pennisetum setaceum is a promising adsorbent for anionic dye removal, with optimal performance achieved under controlled hydrothermal conditions.
Microalgae-Based Wastewater Treatment as Green Solution for Sustainable Degradation and Its Challenges: A Review Musifa, Eva; Palapa, Neza Rahayu; Ahadito, Bijak Riyandi
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.2025.9.4.171-182

Abstract

Releasing polluted water directly into the environment causes serious problems because it contains harmful substances that can damage aquatic life and human health. To reduce these risks, it is important to treat and clean wastewater effectively. Microalgae have shown promise as a natural and sustainable way to treat wastewater. The microalgae help to remove pollutants and can also recover useful resources and energy from the water. The study used a systematic review methodology to identify and evaluate the role of microalgae wastewater treatment. The method was used since it provides a structures and transparent framework for selection, assessment and synthesize of evidence from relevant literature. This review highlights the benefits of using microalgae for wastewater treatment, as well as the challenges involved. Ongoing research focuses on improving these methods, including combining microalgae with bacteria to make the process more efficient and scalable. Despite some difficulties like contamination risks and regulatory issues, future advances especially in genetic engineering and hybrid systems are expected to improve microalgae-based wastewater treatment and make it a key tool for protecting the environment, while multidisciplinary collaboration combining molecular biology research, environmental engineering, public policy, and utilization of this technology at the industrial and societal levels that should be under consideration.
Optimization of Acetone Concentration and Reflux Ratio for Enhanced Oil Extraction from Spent Bleaching Earth: A Response Surface Methodology Approach Monica, Clarissa Putri; Anggraeni, Verendria Putri Caesar; Sumada, Ketut; Sari, Ni Ketut; Pujiastuti, Caecilia
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.2025.9.4.183-191

Abstract

Spent bleaching earth with an oil content exceeding 3% is classified as hazardous and toxic waste, requiring appropriate processing prior to environmental disposal. Extraction is one effective method for processing spent bleaching earth. This study focuses on the optimization of oil extraction from spent bleaching earth using acetone as a solvent, specifically analyzing the effects of solvent concentration and reflux ratio on oil recovery efficiency and evaluating the quality of recovered bleaching earth for potential reuse in vegetable oil refining processes. The extraction method employed was soxhlet extraction using acetone as the solvent. Five different acetone concentrations (50%, 60%, 70%, 80%, and 90%) were tested in combination with five reflux ratios (2, 3, 4, 5, and 6), creating a total of 25 experimental conditions. Response surface methodology (RSM) was utilized to optimize these parameters and identify the ideal conditions for maximum oil recovery. The experimental design and statistical analysis were conducted using Design Expert 13.0.5.0 software. The quality of recovered bleaching earth was assessed against Indonesian National Standards (SNI) for potential reuse applications. The optimization results indicated optimal conditions of 69.15% acetone concentration and a reflux ratio of 4, yielding a maximum oil recovery rate of 17.52%. Analysis of the recovered bleaching earth showed that while it met most SNI standards for bleaching earth quality parameters, the pH remained acidic (below neutral), indicating that alkaline pretreatment would be necessary before the material could be effectively reused in vegetable oil bleaching processes. The study demonstrates that acetone-based soxhlet extraction can effectively recover oil from spent bleaching earth while producing a secondary product suitable for reuse after appropriate pH adjustment.
Phytoremediation of Ammonia, BOD, COD, and TSS with Water Hyacinth (Eichhornia crassipes) for Wastewater Prinajati, Purnomosutji Dyah; Hanaseta, Evelyne; Sasongko, Budi
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.2025.9.4.214-222

Abstract

 Water hyacinth (Eichhornia crassipes) is a typical aquatic plant with several physical characteristics such as the leaves of water hyacinth are glossy and ovoid to circular in shape, with spongy petioles that provide buoyancy. The plant is widely known for its rapid proliferation, with its population being able to double in just 12 days. The Pulo Gebang Fecal Sludge Treatment Plant (STP) is a facility that treats sewage from people’s homes or centralized treatment plants. However, the treated water often does not meet quality standards. To solve this problem, a sustainable and environmentally friendly wastewater treatment method called phytoremediation was chosen. Phytoremediation involves the use of plants to remove pollutants from wastewater, offering cost efficiency, minimum energy requirements, and conservation of soil biological activity. Water hyacinth (Eichhornia crassipes) was chosen for its quality and ability to degrade penetrant substances. Phytoremediation was carried out in batch form with 3 variations of testing time, namely 5, 10 and 15 days. The study found that phytoremediation using water hyacinth significantly reduced ammonia levels, BOD, COD, and TSS parameters, with the most effective contact time being 10 days. This shows that the phytoremediation method using water hyacinth is effective in reducing contaminant levels and can be a sustainable solution for treating domestic wastewater at IPLT Pulo Gebang.

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