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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 111 Documents
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Coconut Shell Charcoal Adsorbent with Variations in Activation to Reduce BOD (Biochemical Oxygen Demand) and TSS (Total Suspended Solid) Levels in Liquid Tofu Waste: Adsorben Arang Tempurung Kelapa dengan Variasi Aktivasi dalam Menurunkan Kadar BOD (Biochemical Oxygen Demand) dan TSS (Total Suspended Solid) pada Limbah Cair Tahu Azmi, Nabilah Nur; Adzillah, Ing Wilma Nurrul; Ratnawati, Kania
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 1 (2025): 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.v10i1.10048

Abstract

Wastewater from tofu production conntains high concentrations of organic matter, particularly Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS). Without proper treatment, this waste has the potential to pollute surrounding water bodies and harm aquatic ecosystems. This research explores the use of coconut shell charcoal as a natural adsorbent to reduce BOD and TSS levels in tofu wastewater. The charcoal was physically activated by heating it at 105°C for three different durations: 15, 60, and 180 minutes. This treatment aimed to improve its surface area and porosity, enhancing its adsorption capacity. Laboratory analysis showed a significant decrease in both BOD and TSS, with the highest efficiency observed at 180 minutes of activation. These findings suggest that coconut shell charcal, a widely available and underutilized material, can serve as an effective and environmentally friendly option for simple wastewater treatment at a local level.
An Examination of Climate Change Phenomena in Coastal Areas and Small Islands (Case Study: Mapur Island, Bintan Regency): Kajian Fenomena Perubahan Iklim Pada Wilayah Pesisir Dan Pulau-Pulau Kecil (Pulau Mapur Kabupaten Bintan) Saputra, Rio; Ismail, Khodijah; Apdillah, Dony
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): 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.v10i2.10115

Abstract

Climate change has affected the availability of local food on small islands such as Mapur Island in Bintan Regency. Global climate change has become a critical environmental issue worldwide, drawing attention not only in Indonesia but also across other nations. This global phenomenon influences various aspects of life in Indonesia, particularly in small islands and coastal regions such as Bintan Island. To understand the dynamics of climate change on Mapur Island, it is essential to identify the most relevant indicators of climate change. Small islands and coastal areas like Mapur are highly vulnerable to climate change due to their dependence on local natural resources and ecologically sensitive environments. This study aims to analyze the climate changes occurring on Mapur Island. It employs a mixed-methods approach, integrating both quantitative and qualitative methodologies to examine the impact of climate change on the availability of local food in Mapur Island, Bintan Regency. A stratified proportional random sampling technique was used in the data collection process. The findings indicate that Mapur Island has experienced significant fluctuations in weather variables attributable to climate change. Notably, maximum wind speeds demonstrated sharp fluctuations, with pronounced wind surges occurring between late 2020 and early 2021, as well as from 2022 to 2023.
Analysis of the Potential for Organic and Inorganic Waste Reduction at PT Asmin Bara Bronang: Analisis Potensi Reduksi Sampah Organik dan Anorganik di PT Asmin Bara Bronang Syahidah, Ashfa Nadia; Sari, Gina Lova; Ratnawati, Kania
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): 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.v10i2.10183

Abstract

Waste management in the industrial sector presents a serious challenge that requires effective and sustainable strategies. This study aims to analyze the waste generation, composition, as well as the potential and effectiveness of waste reduction activities at PT Asmin Bara Bronang. Data were collected based on the Indonesian National Standard (SNI) 19-3964-1994 as a reference for measuring waste generation and composition. The measurements showed an average waste generation of 263.67 kg/day, with the dominant components being food waste (44.02%), paper (14.55%), and plastic (12.04%). Waste reduction efforts carried out include the cultivation of Black Soldier Fly (BSF) larvae and the processing of plastic into paving blocks and plastic sheets. However, the current effectiveness is still low, reaching only 6.75%. Through optimization analysis, food waste reduction has the potential to increase to 35.80%, and plastic waste reduction to 17.07%. Therefore, the total potential waste reduction after optimization could increase to 52.87% of the total daily waste generation.
Study on Biogas Production from Organic Waste of Food Leftovers and Garden Waste Using Green Phoskko 7 in a Fixed Dome Biodigester at PT Asmin Bara Bronang: Studi Pembentukan Biogas dari Sampah Organik Sisa Makanan dan Sisa Taman Menggunakan Green Phoskko 7 Pada Biodigester Fixed Dome di PT Asmin Bara Bronang Husaeni, Az'zahra Nuzula; Sari, Gina Lova; Ratnawati, Kania; Darmawan, Mohammad Akbar Ogy
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): 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.v10i2.10210

Abstract

This study aims to evaluate biogas production from a mixture of food waste and garden waste using a fixed dome biodigester with GP-7 activator. Observed parameters include initial pH, temperature, and carbon-to-nitrogen (C/N) ratio. The fermentation was carried out for 30 days under anaerobic conditions. Results showed an initial pH of 7.00, temperature of 37.70 °C, and a C/N ratio of 24.41, which are within the optimal range. However, storage for ±15 days increased the C/N ratio to 33.31 due to nitrogen loss. Biogas volume increased sharply, peaking at 4.85 m³ on day 20, then declined to 0 m³ by the end of the fermentation period. This pattern reflects the microbial growth phases and the efficiency of organic matter conversion into gas. The study confirms that initial substrate characteristics and retention time play crucial roles in optimizing biogas production from organic waste in industrial environments.
Analysis of Consumers Participation in Packaging Waste Management in Yogyakarta City: Analisis Partisipasi Konsumen dalam Pengelolaan Sampah Kemasan Di Kota Yogyakarta Aselna, Intan Har; Chaerul, Mochammad
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): 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.v10i2.10260

Abstract

E-commerce activities have shown significant growth, especially during the Coronavirus Disease (Covid-19) pandemic, driving an increase in packaging waste generated by consumers from their online purchases. Similar to other cities, Yogyakarta City has waste management facilities at source, but the existence of this infrastructure has not significant reduced the amount of waste transported to the Piyungan landfill. This study aimed to predict consumer behavior and measure their willingness to participate in packaging waste management through the Theory of Planned Behaviour (TPB) model. Data was collected through structured questionnaires distributed to 111 respondents in 14 subdistricts in Yogyakarta city which were then analyzed using Partial Least Square-Structural Equation Modeling (PLS-SEM). The results showed that knowledge, perceived behavioral control, and convenience had a significant effect, while subjective norms and attitudes had a insignificant effect on the willingness of consumers participation in packaging waste management.
Utilization of Aloe Vera as a Biocoagulant in the Treatment of Domestic Wastewater (Grey Water) Based on TSS and Total Coliform Parameters: Pemanfaatan Aloe vera Sebagai Biokoagulan Pada Pengolahan Air Limbah Domestik (Grey Water) Pada Parameter TSS dan Total Coliform Simanjorang, Arristo Pancis; Adzillah, Wilma Nurrul; Nisah, Firda Ainun
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.v11i1.10315

Abstract

Domestic wastewater, which is categorized into black water and grey water, is one of the main sources of water pollution due to its high concentrations of Total Suspended Solids (TSS) and Total Coliform, both of which negatively impact human health and the environment. This study aims to evaluate the effectiveness of Aloe vera as a biocoagulant in reducing TSS and Total Coliform concentrations in domestic wastewater from Housing Complex X, Sirnabaya Village, Karawang Regency, as well as to compare its performance in gel and liquid forms. The research method applied was a laboratory scale experiment using the jar test. Wastewater samples were collected through composite sampling at three different times in one day (08.00, 14.00, 20.00 WIB). The Aloe vera biocoagulant was processed in two forms: gel and liquid. Dosage variations tested were 0, 10, 15, 20, and 25 mL/L. The results showed that the Aloe vera biocoagulant was effective in reducing both TSS and Total Coliform. In the gel form, with the dose of 25 mL/L reached the result 86% for TSS  and 76% for Total Coliform, meanwhile for the liquid form reached the result 76% and 73% with 10 mL/L dose. The superior performance of the gel form compared to the liquid is attributed to its more intact active compounds, such as acemannan for TSS and anthraquinones for Total Coliform.
Geochemical Characteristics of Rocks in Coal Mines (Case Study of Coal Mining PT. ABC): Karakteristik Geokimia Batuan Pada Tambang Batubara (Studi Kasus Penambangan Batubara PT. ABC) Pratama, Gindang Rain; Pradani, Diana Irmawati; Jayaputra, Harsalim Aimunandar; Gautama, Gregorius Aryoko; Aditya, Muhammad Tri; Naibaho, Armin
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): 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.v10i2.10460

Abstract

At the end of mining, an open pit coal mine will form a mine sump, also known as a “pit lake”. At PT ABC, the pit wall rock lithology consists of 30% potentially acidic rock and 70% non-acidic rock, with low pH sump water quality. The static test is intended to calculate the balance of acid-forming and acid-consuming components. The static test does not consider the rate of acid formation and neutralization. The objective is to determine the potential for acid formation to occur in the rock. The kinetic test aims to understand the kinetics of acid formation reactions in samples through a simulation of oxidation reactions in rocks. This test can predict long-term weathering characteristics as a function of time. Of the 4 rock samples tested statically, all samples showed PAF (Potencial Acid Forming) screening criteria. The results of the kinetic test showed that sample S1 experienced an increase in pH to 4,43, sample S2 experienced a decrease in pH to 8,03, sample S3 experienced an increase in pH to 2,44, and sample S4 experienced an increase to 7,24.
Evaluation of The Design Conformity of Water Treatment Plant Units at PERUMDA Kota Palangka Raya Based on SNI 6774:2008 and Technical Literature: Evaluasi Kesesuaian Desain Unit Instalasi Pengolahan Air PERUMDA Kota Palangka Raya Berdasarkan SNI 6774:2008 dan Literatur Rahmah, Rifky Annisa; Masduqi, Ali
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): 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.v10i2.10776

Abstract

Non-compliant design of water treatment units can reduce process efficiency and product water quality. This study aims to evaluate the design conformity of the existing Water Treatment Plant (WTP) units operated by PERUMDA Air Minum Kota Palangka Raya against SNI 6774:2008 and established technical literature. The evaluation focused on the intake, coagulation, flocculation, sedimentation, filtration, and reservoir units using a retro-commissioning approach. Data collection included field measurements and review of technical documents. The results revealed several non-conformities, such as a GT value of 4.8×10⁴ (standard >10⁵), sedimentation detention time of less than 2 hours, and an overflow rate of 13.99 m³/m²/hour (standard limit 11 m³/m²/hour). These findings highlight the need for gradual technical design adjustments to enhance treatment efficiency.
Analysis of Aluminum Sulfate Dosage on Water Quality Parameters in the Coagulation-Flocculation Process: Analisis Dosis Aluminium Sulfat terhadap Parameter Kualitas Air Pada Proses Koagulasi-Flokulasi Nurjanah, Fadhilah Labibah; Cahyonugroho, Okik Hendriyanto; Novembrianto, Rizka
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.v11i1.11181

Abstract

This study aims to evaluate the performance of aluminum sulfate (alum) coagulant in river water, tofu waste, and batik waste with varying doses on the effectiveness of the coagulation-flocculation process. The method used was a jar test on 1000 mL of water samples, including coagulation for 1 minute at 120 rpm, and flocculation for 20 minutes at 40 rpm, and sedimentation for 15 minutes. The variations in alum doses used were 150 mg/L, 200 mg/L, and 250 mg/L. The results showed that this process caused pH changes during treatment and was effective in reducing turbidity, TSS, and color although the optimum dose differed for each sample. In river water, the optimum dose of 150 mg/L resulted in 98.99% turbidity removal, 81.82% TSS removal, and 99.11% color removal. Meanwhile, for tofu waste, the optimum dose of 250 mg/L resulted in 86.67% turbidity removal, 98.66% TSS removal, and 96.16% color removal. Meanwhile, for batik waste, the optimum dose of 200 mg/L resulted in 97.89% turbidity removal, 95.76% TSS removal, and 91.61% color removal. This indicates that the coagulant dosage needs to be adjusted to the characteristics of each type of sample used.
Water Availability Analysis of the Cilamaya Watershed Using the F.J. Mock Method: Analisis Ketersediaan Air DAS Cilamaya Berdasarkan Metode F.J. Mock Az-zahra, Shafa Camilla; Adzillah, Wilma Nurrul; Amala, Zulfa
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.v11i1.11517

Abstract

Water availability is a critical factor in sustainable watershed management, particularly in areas experiencing climatic variability and land-use pressure such as the Cilamaya Watershed in West Java, Indonesia. This study aims to analyze water availability in the Cilamaya Watershed using the F.J. Mock hydrological method based on climatological data and watershed characteristics. The data used include rainfall, air temperature, relative humidity, wind speed, and sunshine duration, which were processed to estimate the water balance and monthly discharge. The results indicate that river discharge in the Cilamaya Watershed exhibits strong seasonal fluctuations, with high flows during the rainy season and a sharp decline during the dry season. During several dry months, the model results show water deficit conditions, as low rainfall is unable to compensate for water losses through evapotranspiration. The dependable flow analysis (Q90) reveals that reliable water availability occurs mainly during the rainy season, while in the dry season the watershed is unable to guarantee a sustainable minimum flow. These findings demonstrate that the Cilamaya Watershed has a high level of hydrological vulnerability, highlighting the need for adaptive water resources management strategies, particularly through strengthening infiltration functions and regulating water use during dry periods.

Page 11 of 12 | Total Record : 111

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