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Muhammad Nizar
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Fakultas Teknik, Universitas Serambi Mekkah Jalan Unmuha, Batoh, Telp. (0651) 26160 dan (0651) 22471 Banda Aceh, Indonesia
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Serambi Engineering
Published by Universitas Serambi Mekkah Aceh
ISSN : 25283561     EISSN : 25411934     DOI : http://doi.org/10.32672/jse
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering
The Serambi Engineering journal is published as a medium to distribute information on research results in engineering and science, both carried out by lecturers from the Serambi Mekkah University and other parties. Published research can be in the form of field research or laboratory research as well as a literature review. This journal is published four times yearly, namely January, April, July, and October. Editors accept manuscripts from lecturers, researchers, students, and practitioners that have never been published by any other media. Manuscripts submitted will be evaluated and edited for uniformity of format, terms, and other procedures. The topics that can be published but are not limited to are: Water & Waste Water Quality Solid Waste Management Air Pollution Control Environmental Health Environmental Modeling Environmental Management Water Resources Management Occupational Health & Safety Ecology Renewable Energy Circular Economics Sustainable Development Climate Change Mitigation and Adaptation Climate Change and Water Resources Adaptation Urban Planning Informatics Computer and Technology Industrial Engineering Other .
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 964 Documents
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Penerapan Aplikasi Primer 7 untuk Analisis Keanekaragaman dan Penyerapan Karbon oleh Vegetasi Mangrove di Terminal Teluk Lamong Sophia Alvin Nurina; Yulia Masladen; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Mangrove vegetation plays a crucial role in absorbing carbon dioxide (CO₂) and supporting the sustainability of coastal ecosystems. Terminal Teluk Lamong (TTL), as a strategic port area, has developed mangrove conservation initiatives to support carbon emission mitigation efforts. This study aims to analyze the diversity, biomass, carbon stock, and carbon absorption capacity of mangrove vegetation at TTL using the PRIMER 7 Application. The analysis of mangrove vegetation diversity through PRIMER 7 revealed variations among observation stations at Terminal Teluk Lamong. Station 1 contained four species with a moderate diversity index (H’ = 1.187) and high evenness (J’ = 0.8566). Station 2 had three species with H’ = 0.826, indicating dominance by certain species. Station 3 showed the highest diversity, with six species and H’ = 1.307. Overall, the H’ values ranging from 0.8–1.3 indicate moderate diversity and a relatively stable mangrove community. In addition, the carbon absorption capacity reached 1,875,955.85 kg CO₂/ha, reflecting the high potential of mangrove vegetation in carbon sequestration. The findings highlight the effectiveness of mangroves as a natural carbon sink, which not only contributes to CO₂ absorption but also supports coastal ecosystem stability and environmental sustainability within the port area.
Pengaruh Variasi Elektroda untuk Penurunan Kadar TSS dan Kekeruhan Limbah Tekstil Batik Dalam Metode Elektrokoagulasi Ramadhani, Audyna Ayu; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The production of batik textiles causes serious environmental problems due to the direct discharge of wastewater into water bodies. The wastewater contains harmful substances that affect both living organisms and the environment. One effective treatment method is electrocoagulation, which combines electrochemical and flocculation–coagulation processes for wastewater treatment. This method reduces pollutant loads by varying electrode types. In this study, the electrodes used are Aluminum (Al), Iron (Fe), Copper (Cu), and Zinc (Zn) with contact times of 30, 60, 90, and 120 minutes. The electrodes are connected to a power supply and placed in an electrocoagulation reactor. The combination of electrode type and contact time significantly affects TSS (Total Suspended Solids) and turbidity. Longer contact time (30–120 minutes) leads to lower TSS and turbidity values due to the formation of Al(OH)₃ flocs, which adsorb suspended particles. The Al–Zn pair shows the best performance as it forms galvanic microcells that enhance metal ion dissolution. Statistical analysis reveals a strong correlation between TSS and turbidity, indicating effective treatment. Optimizing contact time improves electrocoagulation efficiency for batik wastewater treatment.
Analisis Efektifitas MBBR Dengan Aerasi Intermitten Dalam Menurunkan COD Dan NH3-N Pada Air Limbah RPH Akhdan Praditya, Fawwaz; Raden Kokoh Haryo Putro; Muhammad Abdus Salam Jawwad
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Slaughterhouse wastewater contains high levels of organic matter and nitrogen, which can potentially pollute the environment if not properly treated. This study aims to analyze the effectiveness of the Moving Bed Biofilm Reactor (MBBR) system with intermittent aeration using pumice stone media in reducing Chemical Oxygen Demand (COD) and ammonia (NH₃-N) concentrations. The tested variables included media filling ratios (25%, 35%, and 45%) and hydraulic retention times (4, 6, and 8 hours) with balanced oxic–anoxic cycles. The results showed that increasing the media ratio and retention time significantly improved pollutant removal efficiency. The best performance was achieved with 45% media and an 8-hour retention time, resulting in COD and NH₃-N removal efficiencies of 87% and 82.8%, respectively. The pumice stone media effectively supported biofilm growth, which played a key role in the nitrification–denitrification processes. The intermittent MBBR technology with pumice media proved to be efficient, economical, and environmentally friendly for the treatment of slaughterhouse wastewater.
Sintesa dan Karakterisasi Katalis CaO-MgO/KF untuk Konversi Trigliserida Menjadi Monogliserida dari Minyak Kelapa Sawit Khairunisa, Amira Zalwa; Selastia Yuliati; Mustain
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study aims to synthesize and characterize CaO-MgO/KF catalyst derived from dolomite sourced from Gresik, East Jawa, for the conversion of triglycerides into monoglycerides via glycerolysis of palm oil. The dolomite was calcined at 800 ℃ to produce active CaO and MgO phases. The catalyst were impregnated with 2% and 3% potassium fluoride (KF) by weight, followed by recalcination at various temperatures of 400, 450, 500, 550, and 600 ℃ for 4 hours. Characterization included basic site quantification via acid-base titration and morphological and elemental analysis using SEM-EDS. The result showed that the catalyst with 3% KF and calcination at 550 ℃ exhibited the highest basic site density of 12,3 mmol/g, along with a rough, porous surface morphology conducive to catalytic activity. Glycerolisis testing demonstrated the highest monoglyceride yield of 56% under these optimum condition. The addition of KF enhanced the basic strength and efficiency of the catalyst. This study confirm that CaO-MgO/KF catalyst synthesized from dolomite are promising as efficient and environmentally friendly heterogenous catalyst for monoglyceride synthesis.
Kajian Literatur Penggunaan Data Satelit GPM-IMERG pada Aplikasi Hidrologi Andari, Rafika; Nurhamidah
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Global Precipitation Measurement (GPM) – Integrated Multi-satellite Retrievals for GPM (IMERG) satellite data is one of the main sources of global rainfall estimates with high spatial and temporal resolution. This study aims to identify spatial, temporal, and methodological trends in research related to the use of GPM-IMERG between 2014 and 2024, as well as to assess the effectiveness of various bias correction methods in improving data accuracy and to examine the main hydrological applications utilising these data. A systematic review of over twenty scientific publications reveals that the use of GPM-IMERG has grown considerably since 2017, particularly in humid tropical regions such as Southeast Asia, South Asia, and Latin America. Methodologically, there has been a shift towards integrating GPM-IMERG with physically based hydrological models (e.g. SWAT, HEC-HMS and VIC) and machine learning algorithms (e.g. Random Forest and XGBoost) to improve the prediction of rainfall and river discharge. Analysis also shows that Quantile Mapping (QM) and Distribution Mapping (DM) provide the best correction performance, increasing NSE values by 20–35% in mountainous areas. Linear Scaling (LS) remains effective in tropical lowlands. The most prevalent hydrological applications are discharge modelling, flood analysis and drought monitoring. Key research gaps include the absence of long-term studies (>10 years), limitations in topographically complex regions and the lack of multi-sensor integration.
Pengaruh Tekanan Operasi dan Bahan Baku pada Unit Pengolah Air Minum Berbasis Single Membran Goldy ULP 2012-100G Nur Shafa, Annisa; Yuniar; Muhammad Yerizam
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The demand for high-quality and safe drinking water continues to increase in line with population growth and limited clean water sources. This study aims to analyze the effect of operating pressure and raw water sources (PDAM water and Sukomoro water) on the quality of drinking water produced by the Reverse Osmosis (RO) process using the Goldy ULP-2012-100G membrane. The research was conducted at the Energy Engineering Laboratory of Politeknik Negeri Sriwijaya over a period of six months, using pressure variations ranging from 3 to 7 bar. The parameters analyzed included TDS, pH, permeate flux, and rejection efficiency. The results showed that increasing operating pressure positively affected TDS removal efficiency, permeate flux, and pH improvement. The optimal pressure was found at 6 bar, achieving a 95% rejection rate and the highest permeate flux. PDAM water yielded more stable results compared to Sukomoro water, which showed fluctuations in the second trial, possibly due to fouling. The treated water from both sources met the drinking water quality standards based on the Indonesian Ministry of Health Regulation No. 492 of 2010 and No. 2 of 2023. This study confirms that the RO system using the Goldy ULP-2012-100G membrane can effectively process various raw water sources into potable water, with the best efficiency achieved at 6 bar of operating pressure.
Pengolahan Limbah Cair Laundry Menggunakan Aluminium Sulfat dari Fly Ash dengan Metode Koagulasi - Flokulasi Adelita Sidabutar; Utami, Noni Esti; Srie Muljani; Caecillia Pujiastuti; Sani
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Laundry wastewater poses thousand risk for the environment and microbes due to its detergent content that remain the same from washing process using detergent and any other substance. These detergents can trigger various issues such as eutrophication in rivers and health problems caused by their chemical components. Therefore, further treatment is necessary to ensure the wastewater meets quality standards and is safe for discharge into the environment. Fly ash, which contains a high concentration of aluminum, can be utilized through a synthesis process to produce alum. This alum is then applied in coagulation–flocculation processes to reduce pollutants in laundry wastewater, such as BOD, COD, and TSS. This study aims to determine the optimal dosage and contact time of fly ash alum in treating wastewater to meet quality standards, using dosage variations of 30, 40, 50, 60, and 70 mL and flocculation times of 45, 55, 65, 75, and 85 minutes. The results of the treatment using fly ash alum are then compared with those using commercial alum to identify the most effective treatment. Consequently, the synthesis and treatment process not only contribute to wastewater management but also offer an alternative solution for coagulant and flocculant materials.
Optimasi Konsentrasi HCl Dan Suhu Kalsinasi Terhadap Yield Produk MgCl2 Dari Bittern Annisa, Nur; Diah Nur Fitri Midayoga; Lilik Suprianti; Srie Muljani
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The brine solution remaining after salt crystallization contains high levels of valuable minerals, particularly magnesium, which can be extracted and processed into magnesium chloride (MgCl₂), a compound widely used in various industrial applications. This study examines the effect of hydrochloric acid (HCl) concentration and calcination temperature on the yield of MgCl₂ synthesized from brine-derived magnesium hydroxide. Magnesium hydroxide was precipitated using sodium hydroxide and subsequently reacted with HCl solutions of varying concentrations (1N–5N) before being calcined at temperatures ranging from 350°C to 550°C. The results show that both HCl concentration and calcination temperature significantly influence the product yield. The highest yield, 80.07%, was obtained at an HCl concentration of 4N and a calcination temperature of 550°C. While increasing acid concentration and temperature generally improved yield, concentrations above 4N did not provide further benefits and instead tended to decrease efficiency. These findings highlight key processing parameters for optimizing MgCl₂ production from brine, contributing to more efficient resource utilization and environmentally sustainable mineral processing practices.
Identification of Hazards and Risks of Forklift Activities in Warehouse Areas Using the HIRARC Method in the Green Safety Concept Muhammad Ilham Adi Prayoga; Isna Nugraha
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

In warehouse operations PT XYZ, forklift activities represent one of the main sources of hazards due to direct interaction between humans, machines, and the work environment. Common risks include collisions between forklifts and pedestrians, falling loads, vehicle overturning, and impacts with warehouse structures, which may lead to serious injuries and material damage. This study aims to identify hazards and assess the risk level of forklift activities in the PT XYZ warehouse area to reduce the risk of forklift operation and provide risk control through the Green Safety concept. This study uses the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method and designs a risk control strategy based on the Green Safety concept. The results indicate five main activities that have potential risks, with the highest risk found in forklift operations along pedestrian paths and storage areas, having a risk value of 16 (high category) and a potential for collisions and worker injuries. Risk control efforts were carried out by separating forklift and pedestrian pathways, installing green reflective markings, and implementing IoT-based technologies such as distance sensors, speed limiters, and CCTV monitoring. The Green safety approach was also applied through the use of natural lighting and transparent roofing to improve visibility and energy efficiency.
Sintesis dan Karakterisasi Nanopartikel Perak Berbasis AgNO3 dan Ekstrak Daun Lamtoro (Leucaena Leucocephala) Untuk Aktivitas Antibakteri Ayu Rosyida Zam Zam; Amin, Nashrul; Redjeki, Sri
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study aims to synthesize and characterize silver nanoparticles (AgNPs) based on silver nitrate (AgNO₃) using Leucaena leucocephala leaf extract as a natural bioreducing agent, and to determine the effects of AgNO₃ concentration and stirring time on their morphology, stability, and antibacterial activity. The synthesis was carried out using AgNO₃ concentrations of 1.5, 2.5, 3.5, 4.5, and 5.5 mM, with stirring times of 2, 3, and 4 hours at room temperature. UV-Vis analysis showed that a concentration of 5.5 mM and stirring time of 3 hours produced a maximum absorption peak at approximately 430 nm, indicating the successful formation of stable silver nanoparticles. SEM analysis revealed spherical-shaped AgNPs with particle sizes ranging from 50 to 100 nm. The antibacterial activity test against Staphylococcus aureus ATCC 25923 showed an inhibition zone of 11.67 mm at 100% concentration, categorized as strong antibacterial activity. Therefore, the combination of 5.5 mM AgNO₃ concentration and 3 hours of stirring time was determined to be the optimum condition for producing stable silver nanoparticles with high antibacterial potential.

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