cover
Contact Name
Tjahjo Tri Hartono
Contact Email
relibi@uika-bogor.ac.id
Phone
-
Journal Mail Official
relibi@uika-bogor.ac.id
Editorial Address
Jl. Sholeh Iskandar No.Km.02, RT.01/RW.010, Kedungbadak, Kec. Tanah Sereal, Kota Bogor, Jawa Barat 16162, Indonesia
Location
Kota bogor,
Jawa barat
INDONESIA
Jurnal Rekayasan Lingkungan dan Biosistem
ISSN : -     EISSN : 30261465     DOI : https://doi.org/10.32832/relibi
This journal is managed by the Agricultural and Biosystem Engineering Study Program and the Environmental Science Study Program, Faculty of Engineering and Science, Ibn Khaldun University, Bogor. The journal publication period is twice a year, in June and December. Relibi Journal is a scientific journal published periodically which contains scientific articles, conceptual thoughts, and reviews in the fields of environmental management, biosystem engineering and agricultural mechanization. Reviewers conduct a review process on every scientific article published in the RELIBI journal. Scope : Natural Resources and Environmental Management Biosystem Engineering Agricultural Mechanization Environmental Engineering Waste Management
Articles 30 Documents
Financial Viability Assessment of Intermediate Waste Treatment Facilities in South Service Area of DKI Jakarta Riyadi, Rizal; Tjahjo Tri Hartono; Mas Davino Sayaza
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 1 (2025): Jurnal Relibi Vol.3 No.1 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i1.1679

Abstract

This study evaluates the economic feasibility of developing Intermediate Waste Treatment Facilities (ITFs) utilizing Waste-to-Energy technology in Jakarta's South Service Area. A comparative analysis was conducted using two scenarios: conventional landfill management versus ITFs implementation at two potential locations—Pesanggrahan (South Jakarta) and Sukapura (North Jakarta). The research employed secondary data analysis over one month in August 2021, utilizing financial indicators including Net Present Value (NPV), Internal Rate of Return (IRR), and Benefit Cost Ratio (BCR). Environmental and social externalities were integrated into the economic assessment. Results demonstrate that conventional landfill approaches yield negative present value of IDR 5.24 billion, indicating financial unsustainability. Conversely, WtE technology scenarios show positive economic viability: Pesanggrahan achieves NPV of IDR 441 million (IRR 12.12%, BCR 1.08), while Sukapura demonstrates superior performance with NPV of IDR 1.25 billion (IRR 16.15%, BCR 1.23). The findings establish clear economic justification for transitioning from disposal-based to resource recovery systems, with industrial zone locations offering strategic advantages for ITF development in Jakarta's waste management modernization strategy.
Physical, Chemical and Biological Analysis of Water Environment Quality in Tourism Area as a Basis for Sustainable Ecotourism Development in Bogor Zulaika, Aidha; Tri Hartono , Tjahjo; Saputra, Hery; Stephanie, Endah Nadiya
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 1 (2025): Jurnal Relibi Vol.3 No.1 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i1.1711

Abstract

Lakes are an important part of the inland water system that functions to maintain environmental stability, support biodiversity, and provide ecosystem services such as clean water supply, flood control, and natural recreation space. This study was conducted to analyze the quality of the lake and the lake's carrying capacity for fisheries and tourism facilities. Physical, chemical, biological parameters, and lake fertility index were calculated referring to the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Number 5 of 2021 concerning Procedures for Issuing Technical Approvals and Operational Feasibility Letters for Environmental Pollution Control. The results of the study found high pollution parameters in BOD, COD, and TDS. Lake Lido is classified as having a fairly high pollution load with a lake with a Eutrophic trophic index so that further analysis is needed for the level of pollution distribution, lake carrying capacity and lake utilization management strategies for sustainable fisheries and tourism activities. Recommended strategy of Domestic Wastewater Treatment Plant is a system which meet the quality standards for domestic wastewater based on Permen LHK No. 68 of 2016, with an integrated system. As environmentally friendly fish farming strategy that is recommended was the use of SMART Floating Net Cages (KJA).
Use of Analytical Hierarchy Process (AHP) in the Environmental Function Recovery Plan for Battery Melting Waste in Bogor Regency: (Case Study on the Restoration of Land Contaminated by Used Battery Smelting Waste in Cinangka and Cinangneng Villages, Bogor Regency) Ismail, Gunawan; Susetyo, Budi; Hartono, Tjahjo Tri; Hidayaturrahman, Haerul; Wibowo, Rimun; Fatima, Ratih; Deviro, Sonya Okta; Sidik, Sahrul
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 1 (2025): Jurnal Relibi Vol.3 No.1 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i1.1712

Abstract

Environmental pollution caused by unmanaged scrap battery smelting activities in Cinangka and Cinangneng villages, Bogor Regency, has led to heavy metal contamination, particularly lead (Pb), which threatens public health and the ecosystem. This study employs the Analytical Hierarchy Process (AHP) to evaluate four contaminated land remediation methods encapsulation, on-site stabilization and solidification, phytoremediation, and dig and fill based on legal, technical, financial, and environmental aspects. The analysis results indicate that the dig-and-fill method is the best solution for addressing contamination at priority sites with high pollution levels and proximity to residential areas. This method effectively removes contaminated soil and replaces it with pollutant-free soil, thereby minimizing health risks. This study provides strategic recommendations to support land remediation policies in Bogor Regency.
Ecological Viability of Bamboo as an Alternative Revegetation Species for Post-Andesite Mining Land: A Comparative Assessment with Pioneer Species Hartono, Tjahjo Tri; Zulaika, Aidha; Harsono
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 1 (2025): Jurnal Relibi Vol.3 No.1 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i1.1723

Abstract

Andesite mining activities cause land degradation that requires revegetation efforts for ecosystem restoration. This study aims to evaluate the ecological feasibility of bamboo as an alternative revegetation species for post-mining sites compared to conventional pioneer plants through a systematic literature review. Analysis was conducted on 45 relevant scientific publications from indexed academic databases, focusing on adaptability, soil improvement, erosion control, and contribution to biodiversity. Results show that bamboo has significant advantages in root systems (fine root biomass 1.1-4.5 kg m⁻³), erosion control effectiveness, and carbon sequestration potential (6-13 Mg ha⁻¹ year⁻¹). Bamboo also demonstrates high adaptability to marginal land conditions and provides sustainable economic value through selective harvesting without damaging the root system. Compared to conventional pioneer plants, bamboo provides more stable long-term contributions to post-mining ecosystem restoration. This study recommends the use of bamboo as a primary component in andesite post-mining land revegetation programs in Indonesia.
Rural Livelihood Diversification and Economic Adaptation in East Kalimantan: Evidence from Six Village Communities Sayaza, Mas Davino; Stephanie, Endah Nadiyas
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 1 (2025): Jurnal Relibi Vol.3 No.1 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i1.1725

Abstract

This study examines rural livelihood diversification patterns across six village communities in East Kalimantan Province, Indonesia. Using qualitative methodology including focus group discussions, in-depth interviews, and seasonal calendar development, the research analyzes how rural households adapt their economic strategies within contexts shaped by palm oil expansion and extractive industries. The study was conducted in Tepian Indah, Tepian Langsat, Tepian Makmur, Tebangan Lembak, Tepian Baru, and Tepian Budaya villages within Bengalon Subdistrict, Kutai Timur Regency. Findings reveal that livelihood strategies operate within complex intersections of demographic composition, land allocation systems, infrastructure access, and institutional capacity. Oil palm cultivation dominates five villages through both independent farming and plasma partnership arrangements, while mining employment characterizes Tebangan Lembak. Infrastructure disparities create differential opportunities for economic activities, with variations in electrical access, transportation connectivity, and water security affecting household adaptation strategies. Gender analysis shows women's critical roles in autonomous economic activities and environmental adaptation, though often underrecognized in development planning. Weak institutional capacity limits collective action for market integration despite formal farmer group existence. The study contributes to understanding rural economic adaptation in resource-rich regions by demonstrating how livelihood diversification reflects responses to both opportunities and constraints created by extractive industry presence.
Life Cycle Assessment Application of Circular Economy in Quail Farms through Utilization of Black Soldier Fly Novita, Elida; Barri, Ahmad Sa’id Khoirul
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 2 (2025): Jurnal Relibi Vol.3 No.2 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i2.2324

Abstract

Quail farming plays a role in providing a source of animal protein for the community. However, farmers are often faced with the problem of high ration prices and the difficulty of handling waste. The circular economy model using BSF larvae has the potential to overcome these two problems. The utilization of BSF larvae in a circular economy has the potential as feed and is known as a decomposer of organic waste, including quail farm waste. However, as a process increases, energy consumption will also increase and increase the potential for greenhouse gas (GHG) emissions. Therefore, this study aims to assess the impact of global warming, production energy efficiency, and provide recommendations to produce a more efficient and environmentally friendly production process. One that can be used is the life cycle assessment (LCA) method which refers to the ISO 14040 standard. The LCA method has four stages in its method, namely: defining objectives and scope, inventory analysis, impact assessment, and interpretation followed by improvement. The results showed that through the application of a circular economy with the use of BSF larvae as a waste treatment organism, it was able to reduce GWP. Before the implementation of the circular economy, the GWP produced was 19.60 kg CO2eq. Then after the implementation of the circular economy, the first alternative GWP decreased to 10.78 kg CO2eq and in the second alternative, due to higher energy use, the resulting GWP increased to 31.73 kg CO2eq. Through the implementation of a circular economy, production energy efficiency is considered good, namely the 1st alternative NEV: 284.58 and NER: 1.59. Meanwhile, the second alternative resulted in NEV and NER which were smaller than the 1st alternative, with NEV: 156.90 and NER: 1.19. Whereas before the implementation of the circular economy NEV: -320.64 and NER: 0.12. Recommendations to produce more efficient and environmentally friendly production are: replacing the energy source of the drying process from LPG fuel with solar heat energy as an energy source in the drying process of BSF larvae.
Developing a Comprehensive Regional Resilience Index through Analytic Hierarchy Process: A Five-Dimensional Approach in Bogor Regency, Indonesia Hartono, Tjahjo Tri; Zulaika, Aidha; Afrianto, Yuggo; Nurhayati, Immas; Pratini, Ratna; Sayaza, Mas Davino
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 2 (2025): Jurnal Relibi Vol.3 No.2 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i2.2332

Abstract

This study develops a comprehensive five-dimensional Regional Resilience Index (Indeks Ketahanan Wilayah/IKW) for Bogor Regency, Indonesia, integrating governance capacity and social capital dimensions alongside traditional human development, food security, and disaster risk indicators. Stakeholder-derived weights through the Analytic Hierarchy Process (n=25 experts) yielded the following priority ranking: Human Development (0.28), Disaster Risk (0.24), Food Security (0.22), Governance Capacity (0.15), and Social Capital (0.11), with consistency ratio CR=0.073. Spatial analysis across 40 subdistricts revealed significant heterogeneity (CV=18.7%), with k-means clustering identifying three distinct resilience typologies: High (8 subdistricts, IKW>65), Moderate (24 subdistricts, IKW 51-65), and Low (8 subdistricts, IKW<51). Comprehensive validation achieved: Cronbach's alpha 0.78, MAPE 1.12%, cross-validation RMSE 2.87, Monte Carlo 90% confidence interval of +/-3.2 points, and significant outcome correlation with post-flood recovery times (r=-0.67, p<0.01). Baseline IKW 2025: 58.42 (Moderate). Multi-scenario projections to 2030: baseline 63.15, optimistic 68.24 (High category transition), pessimistic 55.78. The framework provides actionable guidance for evidence-based regional development planning.
Green Economy Index Development as a Measurement Instrument for Green Economy Transition in Bogor Regency Zulaika, Aidha; Hartono, Tjahjo Tri; Afrianto, Yuggo; Nurhayati, Immas; Pratini, Ratna; Tazkialaras
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 2 (2025): Jurnal Relibi Vol.3 No.2 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i2.2334

Abstract

This study develops and implements the Green Economy Index (GEI) as an instrument for measuring green economy transition in Bogor Regency. Using a composite index methodology adopted from OECD and UNDP best practices, the GEI integrates 15 indicators across three pillars: economic (6 indicators), social (4 indicators), and environmental (5 indicators). Data were collected from official government publications (BPS, KLHK) for the period 2020-2024. The index was constructed using min-max normalization and geometric mean aggregation. Model validation through backtesting showed a Mean Absolute Percentage Error (MAPE) of 5.10%, classified as "Highly Accurate." Results indicate that Bogor Regency's GEI reached 50.16 in 2024 ("Moderate" category), with the Social Pillar performing best (62.49), followed by Environmental (50.46) and Economic (40.03). Scenario projections suggest the GEI could reach 61.76 by 2030 under moderate assumptions (CAGR 3.53%). This study provides an evidence-based framework for green economy policy formulation at the regional level.
Framing Floods: A Qualitative Analysis of Jakarta Flood Coverage in Indonesian Online Media Sayaza, Mas Davino; Tazkialaras
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 2 (2025): Jurnal Relibi Vol.3 No.2 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i2.2335

Abstract

This study examines how Indonesian online media framed the Jakarta floods in 2024 using framing theory, agenda-setting theory, and attribution theory. Through qualitative content analysis of ten news articles from two major online portals, the research identifies dominant frames, causal attributions, and implications for public discourse. Findings reveal that 80% of articles framed floods as natural disasters caused primarily by weather conditions (90%), while only 30% mentioned infrastructure inadequacy. Government sources dominated coverage with consistently positive framing, and 100% of articles emphasized emergency response while only 20% discussed long-term solutions. The study contributes to environmental communication scholarship by documenting how Indonesian media construct flood narratives and extending disaster framing research to the Southeast Asian context.
Isolation and Characterization of Nutrient-Providing Microbes from Waste Soil and Grass Soil for Bio-Organic Fertilizer Formulation Sayaza, Mas Alvy Dwi; Wardani, Ilma Nadia; Jati, Abner Atmajendra Waluyaning; Utami, Alya Wydia; Zidan, Ram Muhammad; Putri, Izzah Zen Salsabila; Zamzamy, Muhammad Amin Nur; Wahyuni, Rima Sri
Jurnal Rekayasa Lingkungan dan Biosistem Vol. 3 No. 2 (2025): Jurnal Relibi Vol.3 No.2 2025
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/relibi.v3i2.2336

Abstract

Intensive agricultural practices have degraded soil fertility, increasing dependence on chemical fertilizers. This study aimed to isolate and characterize nutrient-providing microbes from waste soil and grass soil at IPB University and formulate them into bio-organic fertilizer. Rhizobium was isolated from peanut root nodules using YEMA medium, potassium solubilizing microbes (KSM) from grass soil using Alexandrov medium, and phosphate solubilizing microbes (PSM) from waste soil using Pikovskaya medium. Results showed Rhizobium population of 700 CFU with typical morphology. KSM population reached 1,036,333 CFU/g soil, while PSM reached 1,255,833 CFU/g soil. Both KSM and PSM demonstrated positive solubilization activity with indices of 2.34–2.66. Antagonism tests confirmed compatibility among the three isolates. Bio-organic fertilizer was successfully formulated by combining compost, molasses (5%), and the three microbial isolates in pellet form. Indigenous microbes from different soil ecosystems show promising potential as biofertilizer agents providing balanced N, P, and K nutrients through sustainable biological mechanisms.

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