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Media Ilmiah Teknik Lingkungan
Published by Universitas Muhammadiyah Palangkaraya
ISSN : 25021931     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
The publication of Media Ilmiah Teknik Lingkungan certainly participates in disseminating the results of community services conducted by lecturers and researchers especially from UM Palangkaraya and other universities. This edition contains 5 articles consisting of Environmental dan Environmental-based construction Engineering topics.
Arjuna Subject : -
Articles 121 Documents
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Analysis of the Socio-Economic Impact on the Community of Village X Due to the Construction of Hotel X: Analisis Dampak Sosial Ekonomi Masyarakat Desa X Akibat Pembangunan Hotel X Muhammad Rizal Rosyadi; Okik Hendriyanto Cahyonugroho
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 1 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i1.11770

Abstract

The construction of Hotel X in a Village, has brought various social and economic changes to the surrounding community. This study aims to examine how the project influences local social conditions, levels of concern, community perceptions, employment opportunities, and household income. A descriptive approach was used by combining primary data obtained through field observations and interviews, with secondary data derived from official documents and relevant literature. The findings indicate that most residents are aware of the development plan and generally show a positive response. The community perceives that the presence of the hotel may create new job opportunities and increase income, although a small number of residents still express concerns regarding the changes occurring during the pre-construction and construction phases. These perceptions are shaped by the information received and the direct experiences of the community throughout the development process. Overall, the construction of Hotel X tends to provide economic benefits for the local population; however, proper management of social aspects remains necessary to ensure that the changes are widely accepted and do not generate tension within the community.
Analysis of Psychosocial Hazard Potential and Its Implications on the Occupational Safety and Health Performance of Employees in the QC Department of PT Garudafood Putra Putri Jaya, Tbk : Analisis Potensi Bahaya Psikososial dan Implikasinya terhadap Kinerja K3 Karyawan Departemen QC PT Garudafood Putra Putri Jaya, Tbk Moch Akeyla Anugrah; Okik Hendriyanto Cahyonugroho
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 1 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i1.11755

Abstract

Because it can have an impact on employee performance, work stress is an important issue for businesses. The goal of this study is to assess the degree of stress using a straightforward random sampling technique. The Slovin formula and a 10% tolerance level are used to estimate the sample size. In accordance with the appendix to the Minister of Manpower Regulation (PERMENAKER) Number 5 of 2018 concerning Occupational Safety and Health in the Work Environment, a cross-sectional study was carried out using a quantitative approach with descriptive analysis. Respondents from the Quality Control (QC) department completed the questionnaire. Both the reliability and validity tests yielded reliable results. According to the study's findings, of the 44 responders to the questionnaire, 40 (90.91%) were classified as having mild stress and 4 (9.09%) as having moderate stress. The aforementioned rationale leads to the conclusion that workers in PT Garudafood Putra Putri Jaya, Tbk's Quality Control (QC) department are not overly stressed at work.
Vegetation Density of Green Open Spaces as a Key Determinant of Outdoor Thermal Comfort on the Universitas Palangka Raya Campus: Kerapatan Vegetasi Ruang Terbuka Hijau sebagai Penentu Kenyamanan Termal Luar Ruangan di Kampus Universitas Palangka Raya Waluyo Nuswantoro; Yetrie Ludang; Herwin Sutrisno; Subrata Aditama Kittie Aidon Uda
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 1 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i1.11886

Abstract

Outdoor thermal comfort plays a crucial role in supporting daily academic activities, particularly in humid tropical regions characterized by high air temperature and relative humidity. Air temperature and relative humidity were measured at 30 observation points representing different land-cover conditions across the campus area. Outdoor thermal comfort was evaluated using the Thermal Humidity Index (THI), while vegetation density was assessed using the Normalized Difference Vegetation Index (NDVI) derived from Landsat 8 imagery. Statistical analysis was applied to examine the relationship between NDVI and THI. The results indicate a consistent negative relationship between vegetation density and THI. Areas with higher NDVI values tend to exhibit lower THI levels, reflecting more comfortable thermal conditions. In contrast, locations dominated by built-up surfaces and sparse vegetation show higher THI values and experience greater thermal discomfort, particularly during daytime periods. Although the overall proportion of green open space on the campus meets regulatory requirements, the spatial distribution and density of vegetation vary considerably across activity zones. These findings highlight that vegetation density is a key factor in improving outdoor thermal comfort in tropical university campuses. Strategic enhancement of vegetation density, especially in high-activity areas, is essential to support a more thermally comfortable and sustainable campus environment.
Analysis Of Physical And Chemical Parameters Of Citarum River Water Quality In Karawang Regency: Analisis Parameter Fisika Dan Kimia Kualitas Air Sungai Citarum Di Kabupaten Karawang Varrel Adha Putra Sentono; Kania Ratnawati; Zalfa Alya Najibah
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.10761

Abstract

In industrialized era, river pollution has become a significant concern. This is due to the disposal of waste into the river and the resulting pollution of the Citarum River, which has a significant negative impact on aquatic life and the activities of communities that use its water. Water quality identify as the conformity of water quality to the river class as outlined in Government Regulation Number 22 from 2021 regarding the execution of environmental safeguarding and administration. This research was conducted to assess the water quality of the Citarum River by examining several parameters: TDS, TSS, pH, BOD, COD, DO, Nitrate, and Phosphate. The research was conducted on January 29, 2021, for 12 times. This research was conducted in the Citarum River around Karawang Regency, with five sampling points divided into five stations. The sampling results, based on the test parameters, indicated that the pollution of the Citarum River requires better management measures to improve its water quality. Efforts to reduce industrial waste and unsustainable agricultural practices are essential to maintain the cleanliness of the Citarum River and maintain environmental sustainability.
The Effect of Adding Chitosan as a Commercial Coagulant Aid in Reducing Microplastics in Leachate: Pengaruh Penambahan Kitosan sebagai Bantuan Koagulan Komersial dalam Menurunkan Mikroplastik Pada Air Lindi Hasna Aqilah Putri Agdy; Okik Hendriyanto Cahyonugroho; Praditya Sigit Ardisty Sitogasa
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.12261

Abstract

Leachate from the final processing site (TPA) has the potential to pollute the environment because it contains organic compounds, suspended solids, and microplastics. This study aims to analyze the effect of varying doses of polyaluminum chloride (PAC) coagulant and chitosan on the reduction of microplastics, COD, and TSS in leachate from the Randegan landfill. The method used was coagulation-flocculation with a jar test. The results showed that varying doses and combinations of coagulants affected the effectiveness of treatment. The combination of PAC and chitosan at the optimum dosage was able to reduce microplastics by 78%, COD by 86%, and TSS by 91%. The reduction in microplastics occurred through the mechanisms of charge neutralization, adsorption, and sweep flocculation. The combination of PAC and chitosan has the potential to be applied as an effective and sustainable leachate treatment method.
Effect of Eco-Enzyme Dosage Variations in an Intermittent MBBR System on the Efficiency of Domestic Wastewater Treatment: Pengaruh Variasi Penambahan Eco-Enzyme pada Sistem Intermittent MBBR terhadap Efisiensi Pengolahan Limbah Domestik Adinda Permata Salsabila; Praditya Sigit Ardisty Sitogasa
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.12317

Abstract

This study aimed to analyze the effect of a Moving Bed Biofilm Reactor (MBBR) operated under oxic–anoxic conditions with the addition of an external carbon source in the form of eco-enzyme during the anoxic phase on the reduction of COD and BOD concentrations in domestic wastewater. The investigated variables included oxic–anoxic duration ratios (2:1, 4:1, and 6:1) within an 8-hour operational cycle and eco-enzyme dosages (0%, 0.5%, 1%, 1.5%, and 2%). The results showed that at an oxic–anoxic ratio of 6:1, the addition of 1.5% eco-enzyme achieved COD removal efficiency of up to 87%, while a 2% dosage resulted in BOD removal efficiency of 89%. These findings indicate that the appropriate eco-enzyme dosage enhances the biodegradation of organic compounds and supports biological organic removal in the intermittent MBBR system by creating optimal reactor environmental conditions.
Analysis of Small-Scale Tofu Industry Wastewater Characteristics for Optimal Wastewater Treatment: Analisis Karakteristik Limbah Cair Pada Industri Tahu Skala Rumahan untuk Pengolahan Limbah Cair yang Optimal Sethiavi Rizki; Wilma Nurrul Adzillah; Zulfa Amala
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.12606

Abstract

Small-scale tofu industries have the potential to pollute the environment with the liquid waste generated during the tofu-making process. Liquid waste from the tofu industry has COD and BOD concentrations of up to 9,308 mg/L and 3,191 mg/L, respectively, which exceed the quality standards set forth in Ministry of Environment Regulation No. 5 of 2014. This study aims to identify and analyze the characteristics of liquid waste in the tofu industry to determine the appropriate treatment method based on the BOD/COD ratio. The research was conducted by collecting samples using the grab sampling method, followed by an analysis of the results of the waste characteristic tests. Based on the research results, it was found that one of the liquid wastes from the tofu industry in Karawang Regency had COD and BOD values of 6,062.5 mg/L and 570.5 mg/L, respectively, with a BOD/COD ratio of 0.09. These conditions prevent the direct application of biological treatment and necessitate pre-treatment in the form of physical or chemical treatment combined with biological treatment, such as wastewater treatment using filtration and constructed wetlands.
Evaluation of the Effectiveness of Oil and Gas Industrial Wastewater Treatment: A Case Study of PT Kilang Pertamina Internasional RU III Palembang: Evaluasi Efektivitas Pengolahan Air Limbah Industri Migas: Studi Kasus PT Kilang Pertamina Internasional RU III Palembang Dewi Indriani; Prabowo Eka Soesanta; Subekti Nurmawati
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.12729

Abstract

Wastewater treatment in the oil and gas industry plays an important role in meeting environmental quality standards and preventing pollution. This study aims to evaluate the effectiveness of wastewater treatment at PT Kilang Pertamina Internasional RU III Palembang through a comparison of influent and effluent quality. The parameters analyzed include ammonia, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), sulfide, pH, and oil and fat. The study used a quantitative approach with paired comparative analysis based on 12 months of operational data. The normality test using Kolmogorov–Smirnov showed that some of the data showed a normal distribution so that hypothesis testing was continued using a paired t-test at a 95% confidence level (α = 0.05). The results showed an effective reduction of 58.97% (ammonia), 28.34% (BOD), 37.51% (COD), and 56.81% (oil and fat), while sulfide was relatively low (22.02%) and pH tended to be stable (-0.81%). The results of the paired t-test showed a significant difference (p < 0.05) between influent and effluent concentrations in the main parameters, indicating that the wastewater treatment system was working effectively. However, the suboptimal effectiveness of several parameters indicated the need for optimization of the treatment process.
Evaluation of Preventive Operational Control in Maintaining Treated Water Turbidity Stability at SPAM Katulampa, Bogor City: Evaluasi Pengendalian Operasional Preventif dalam Menjaga Stabilitas Kekeruhan Air Hasil pada SPAM Katulampa Kota Bogor Niesa Hanum Mistoro; Enry Adiarto Guntoro; Noviani Ima Wantoputri; Makmur Gunawan; Muhammad Yacob
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.13478

Abstract

Treated water turbidity stability is an important indicator of operational reliability in surface-water-based drinking water treatment plants. This study evaluated preventive operational control at SPAM Katulampa, Bogor City, using daily operational data from 10 February to 10 March 2026 and field observations. The evaluated parameters included raw and treated water turbidity, raw water flow rate, turbidity removal efficiency, and preventive control practices in each treatment unit. Data were analyzed using descriptive statistics and the coefficient of variation, followed by development of a preventive operational control matrix. Raw water turbidity fluctuated markedly, with an average of 58.83 NTU, a range of 12.00–262.98 NTU, and a coefficient of variation of 88.49%. In contrast, treated water turbidity remained stable, averaging 0.61 NTU with a range of 0.52–0.91 NTU and a coefficient of variation of 16.83%, consistently meeting the 3 NTU drinking water standard. Stability was supported by integrated controls at the intake, coagulation, flocculation, sedimentation, filtration, reservoir, and overall operation stages. Key measures included screening, coagulation control, sludge draining, filter backwashing, media maintenance, and final water quality verification. The findings confirm that stable treated water quality results from coordinated preventive control across the treatment train.
Bioprocessing of Coconut Shell, Coffee Grounds, and Peat Fiber Wastes for Renewable Energy Production: Rekayasa Bioproses Limbah Tempurung Kelapa, Ampas Kopi, dan Serat Gambut untuk Produksi Energi Terbarukan Dhymas Sulistyono Putro; Andhira Trianingtyas; Rizki Auliansyah Putra; Bunga Resa Hartati; Radhiatunnisa S. Samad; Ryco Prawira Purba
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.13579

Abstract

The increase in global energy demand and the accumulation of organic waste drive the need to utilize biomass as a renewable alternative energy. This study aims to evaluate the physicochemical characteristics, specifically moisture content and ash content, of biochar made from coconut shells, coffee grounds, and peat fiber based on the commercial briquette quality standard SNI 01-6235-2000. The methodological stages used include the carbonization (pyrolysis) process, particle size reduction, dough formulation using starch and lime binders, molding, and drying. The analysis results indicate that coffee grounds and coconut shells have the lowest average ash contents, successfully meeting the maximum SNI limit (≤8%) and making them highly feasible to be substituted as energy briquettes. Conversely, peat fiber produces a high ash content residue, making it less efficient as a fuel, but highly prospective to be repurposed as biochar (soil conditioner) in the agricultural sector. All initial biomass samples recorded a high moisture content, necessitating the optimization of post-molding thermal drying to meet the standard.

Page 12 of 13 | Total Record : 121

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