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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 5 Documents
 1 
Search results for , issue "Vol. 9 No. 2 (2025): June" : 5 Documents clear
Composting of Cow Dung, Garden Waste, and Market Waste using Local Microorganisms (LMO) through the Takakura Stacking Method Rinanda, Bismi Lyra; Aziz, Rizki; Yenni
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.2025.9.2.87-97

Abstract

One of the main challenges in agricultural practices is the heavy reliance on chemical fertilizers without being balanced by the use of organic fertilizers. This study aims to analyze the maturity, quality, and quantity of compost produced from a mixture of cow dung, garden waste, and market waste using the Takakura Layered Method with EM4 and Local Microorganisms (LMOs) as activators. The LMOs used included LMO A (tuna fish waste, sugarcane bagasse, and pineapple peel) and LMO B (tuna fish waste, banana peel, and vegetable scraps). Composting was conducted in duplicate with seven treatment variations: (A) cow dung with EM4, (B) cow dung with LMO A, (C) cow dung with LMO B, (D) cow dung mixed with garden waste and LMO A, (E) cow dung mixed with garden waste and LMO B, (F) cow dung mixed with garden and market waste with LMO A, and (G) cow dung mixed with garden and market waste with LMO B. The results showed that all treatments met the composting standards. All variations complied with the Indonesian National Standard (SNI 19-7030-2004) in both maturity parameters (pH, temperature, color, texture, odor, and composting duration) and quality parameters (moisture content, C-organic, nitrogen, C/N ratio, phosphorus, and potassium). The compost quantity was reduced by 27–58%. The best result was observed in variation (D1), which consisted of cow dung, garden waste, and LMO A, achieving a score of 39 with a composting time of only 6 days.
Peatland Hydrology Analysis Using Rainfall and Water Table Level Approaches in the Riau Peat Hydrological Unit for the 2018-2020 Period Putra, Raden; Adelheid, Jessica; L., Deni Okta; Mareta , Lesi
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.2025.9.2.46-55

Abstract

Peat ecosystems are the world's largest carbon sink and are important in climate change mitigation and global environmental balance. However, tropical peat ecosystems, particularly in Riau Province, face serious threats due to anthropogenic activities such as land clearing, drainage, and plantation conversion. These activities are exacerbated by climate change, which causes a decrease in rainfall and increases the risk of peat fires. This study aims to analyze the relationship between rainfall and peat water level in the Riau Peat Hydrology Region (PHR) during the period from October 2018 to December 2020. The main data used are daily rainfall and peat water level data from 39 SIPALAGA stations owned by the Peat and Mangrove Restoration Agency (BRGM). Spatial data on peatland distribution and regional administrative boundaries were used to support the hydrological zone-based analysis. Statistical methods applied included correlation and coefficient of determination tests to evaluate the relationship between rainfall and peat water level. Daily data were accumulated monthly, and peat hydrological zones were identified based on the distribution of peatlands from the Ministry of Environment and Forestry (MoEF) Indonesia. The results showed that a decrease in rainfall significantly decreased peat water levels, with strong correlations in most hydrological zones. In addition, areas with intense drainage activities experienced a major shift from naturally flooded to drought-prone conditions, increasing the risk of fires. In contrast, significant rainfall only temporarily restores peat hydrological conditions. Spatially, some hydrological zones show different peat water table dynamics, depending on the intensity of rainfall and the level of anthropogenic disturbance. These findings make an important contribution to peat fire risk mitigation strategies and sustainable peat ecosystem management. By integrating temporal and spatial data, this research offers a comprehensive approach to support area-based peat protection policymaking, particularly in the face of climate change impacts and human activities.
Evaluating the Quality Status and Sustainability of Anggoeya Spring in the Ecological Dimension using the Rapid Appraisal for Springs Method Kahirun; Ramadhan, La Ode Ahmad Nur; Erif, La Ode Muhammad; Mubarokah, Umi
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.2025.9.2.56-67

Abstract

Water quality is essential for community needs. This study uses physical, chemical, and biological parameters to evaluate the quality and sustainability of Anggoeya Spring, Kendari City. The Southeast Sulawesi Health Laboratory tests assessed compliance with water quality standards, while pollution levels were analyzed using the Pollution Index. Sustainability was examined through the RAP-SPRINGS method, focusing on ecological aspects. Results showed compliance with most standards, except for BOD, COD, and total coliform levels. Anggoeya Spring was classified as lightly polluted but ecologically sustainable. Key sensitive attributes land cover in the catchment area, land cover within a 200 m radius, catchment area criticality, and water source utilization-highlight the need for targeted conservation and rehabilitation efforts. Therefore, prioritizing land and forest management in the catchment area and surrounding zones is crucial for sustaining Anggoeya Spring. This includes the need for improved raw water treatment, especially water treatment technology, due to the high total coliform content in Anggoeya spring water. This study evaluates water quality, determines pollution levels, and analyzes sustainability using the RAP-SPRINGS method. It emphasizes crucial ecological factors for conservation, advocates land rehabilitation, and highlights the necessity of improved water treatment. Ultimately, it contributes to environmental preservation and sustainable water management.
Transforming Tofu Wastewater into Sustainable Organic Fertilizer: A Fermentation Approach with EM4 and Coconut Water Pungut; Putri, Hrismalia Octavianindhita; Al Kholif, Muhammad; Fitria, Firda Lutfiatul
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.2025.9.2.79-86

Abstract

This growing need for sustainable agriculture has made using recycled waste material in plant cultivation a significant area of research. The tofu industry, as a leading producer of nitrogen (N), phosphorus (P), and potassium (K)-rich wastewater, is a valuable substrate resource for microbial fermentation. The application of solid-state fermentation using EM4 with coconut water under aerobic and anaerobic processes works towards acidification of DM, increasing bioavailable nutrients and minimizing environmental implications from untreated wastewater discharge. This study determined the feasibility of fermenting tofu wastewater with coconut water and EM4 to produce liquid organic fertilizer and analyzed the product’s N, P2O5, K2O, C-organic, and C/N ratio. Fermentation occurred at 4:1 of tofu wastewater: fermentation materials, with EM4 concentrations of 10%, 25%, and 50% under anaerobic conditions for 14 days. The fertilizer produced was analyzed and compared with liquid organic health fertilizer according to nonstandard percent by Minister of Agriculture no. 70/Permentan/SR.140/10/2011. Results showed that fermentation increased tofu wastewater’s protein and amino acid contents. The highest nitrogen content (3.09 ± 0.023%) was obtained by treatment C (50% EM4), meeting standard requirements (3-6% N). The K2Oconcentration of treatment C peaked at 3.28 ± 0.025% (K2O) within the acceptable range (3-6% K2O). The C-organic content in treatment C reached 10.5 ± 0.094%, exceeding the minimum quality (6%). The P2O5 contents never exceeded the maximum limit (2.22 ± 0.0057%). Although it indicates a rapid-acting fertilizer, the C/N ratio remained low for all treatments.
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.

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