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Muhammad Nizar
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muhammad.nizar@serambimekkah.ac.id
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serambiengineering@serambimekkah.ac.id
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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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INDONESIA
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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Development of a Smart IoT-Integrated Watering System for Moth Orchid (Phalaenopsis amabilis) Cultivation in the SMASHTHETIC Greenhouse Permanasari, Ayu Ratna; Harita Nurwahyu Chamidy; Bevi Lidya; Ari Marlina; Endang Widiastuti; In Jumanda Kasdadi
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

A greenhouse is a controlled environment designed to enhance plant productivity by regulating microclimatic conditions. However, in many greenhouse systems, the irrigation process is still performed manually, resulting in suboptimal water use efficiency and inconsistent watering schedules. The SMASHTHETIC greenhouse serves as a cultivation facility for the moth orchid (Phalaenopsis amabilis), which requires precise control of substrate moisture and ambient humidity to ensure optimal growth and flowering. This study aims to design and implement an automatic irrigation system based on Arduino and the Internet of Things (IoT) to improve irrigation efficiency in the SMASHTHETIC greenhouse. The system consists of a soil moisture sensor, Arduino microcontroller, Wi-Fi module (ESP8266/ESP32), and actuators such as a water pump and solenoid valve to regulate water flow. IoT integration enables real-time monitoring and remote control via web and smartphone applications. Experimental results show that the system automatically adjusts watering frequency and duration based on soil moisture data, providing convenience for users and reducing manual intervention. Therefore, this study demonstrates that the integration of Arduino and IoT technologies in greenhouse irrigation supports the development of smart agriculture practices that are more efficient, sustainable, and productive.
Analisis Perbandingan Karbon Aktif Tempurung Keluak (Pangium Edule) dan Karbon Aktif Komersial dengan Aktivator HCl dan KOH dalam Menurunkan Cr (VI) dan Cu (II) pada Limbah Elektroplating Ramadhani, Fajar Tegar; Mohamad Mirwan
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The electroplating process, also known as electrocoating or metal plating, is a technique used to coat the surface of a solid material with a layer of metal through the application of an electric current in an electrolyte solution. This study utilized keluak shell biomass as an adsorbent in a fixed-bed column. The objective of this research was to analyze the adsorption capacity of keluak shell in reducing Cr⁶⁺ and Cu2+ concentrations. The research method employed was experimental, using electroplating wastewater obtained from an industry in Sidoarjo. The study was conducted with activated carbon derived from keluak shells, activated with 1 M HCl and 5% KOH solutions, as well as commercial activated carbon for comparison. The variations were based on sampling times of 30, 60, 90, and 120 minutes. The results showed that the application of keluak shell biomass activated with 1 M HCl, 5% KOH, and commercial activated carbon as adsorbents yielded optimal concentration reductions of Cr⁶⁺ 23.9 mg/L; Cu2+ 0.7593 mg/L; Cr⁶⁺ 56.8 mg/L; Cu2+ 0.7593 mg/L; Cr⁶⁺55.4 mg/L; Cu2+ 0.7593 mg/L, respectively. These values were obtained at 30 and 60 minutes sampling intervals, where the initial adsorption rate was relatively high due to the unoccupied surface of the adsorbent, thereby enhancing removal efficiency.
Degradasi Total Petroleum Hidrokarbon Oleh Bakteri Petrofilik Dengan Proses Bioremediasi Pada Lahan Pasca Pertambangan Minyak Dan Gas Rasti, Wilujeng; Syadzadhiya Q. Z Nisa’
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Soil contamination by petroleum hydrocarbons is a serious environmental problem due to their toxic nature and potential threat to ecosystem health. This study aimed to evaluate the effectiveness of combining biostimulation and bioaugmentation in enhancing the degradation of Total Petroleum Hydrocarbons (TPH) in contaminated soil. The bioremediation experiment was conducted at the laboratory scale using 1000 g of contaminated soil, treated with 20% (w/w) NPK fertilizer and inoculated with Bacillus subtilis and Pseudomonas fluorescens, each at 6% (v/w). The total bacterial population was monitored by determining colony-forming units (CFU/g) following the SNI 2332.3:2015 method, analyzed every 7 days for 35 days. TPH concentration was analyzed using the gravimetric method as regulated in the Decree of the Ministry of Environment No. 128/2003 at the same intervals. The results showed that the bacterial population increased significantly from 9.6 × 10⁸ CFU/g at the beginning of the experiment to 9.30 × 10¹⁵ CFU/g, with the peak growth observed on day 28. TPH concentration decreased consistently throughout the study, indicating that the combination of biostimulation and bioaugmentation was effective in accelerating hydrocarbon degradation.
Design and Implementation of Battery Control Unit Based Pulse Width Modulation for Lighting System by Solar Cell Module Ekki Kurniawan; Alvius El Viegas; Sigit Yuwono; Septiadi, Yadi
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The utilization of renewable energy has become one of the solutions to addressing the global energy crisis. Along with the continuous rise in energy costs, conventional energy sources are becoming increasingly depleted. One example of renewable energy utilization is the use of solar energy. The energy harnessed from sunlight can be converted into electrical power through photovoltaic technology, which employs solar cells as implemented in solar power plants. However, solar power plants face several challenges, particularly in current and voltage control, which lead to inefficiencies in solar energy utilization. The system is designed to regulate current and voltage during the battery charging and discharging processes using PWM control. The experimental results show a battery charging voltage of 14 VDC and a charging current of 1.2 A, where the charging current corresponds to 10% of the battery capacity. The implemented Battery Control Unit (BCU) achieved an overall efficiency of 92%.
Evaluasi Strategi Pengendalian Kualitas Permesinan Brake Drum dengan Metoda Attribute Agreement Analysis dan Measurement System Analysis Pratomo, Edo Suryo; Muhammad Ibrahim; Invanos Tertiana
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

In the component manufacturing process in the automotive industry, product quality control strategies affect product defect detection and traceability, production costs, and customer delivery times. To support the achievement of quality assurance in production conditions and production delivery schedules, determining the inspection method of the Pitch Circle Diameter (PCD) on brake drum components becomes important if the operational process capability of the machine is low at Cp = 0.89 and Cpk = 0.83, along with the degradation and age of the machine. The strategy for selecting the use of a Coordinate Measuring Machine (CMM) or a limit gauge for a 100% inspection tool based on the OK/NG classification is evaluated from the aspects of effectiveness, accuracy, and time efficiency. From the evaluation method of the Measurement System Analysis attribute type, specifically Attribute Agreement Analysis, a total of 30 samples were tested by three operators with three replications. The evaluation results showed the effectiveness of the limit gauge of 95.18%, a miss rate of 0%, and a false alarm rate of 7.69%. The Fleiss' Kappa value of the use of the limit gauge was 0.90, indicating good and consistent measurement suitability between operators. Limit gauges showed a measurement time that was 97.7% faster than a CMM (Coordinate Measuring Machine) (17 seconds vs. 740 seconds). The study showed that the strategy of making and using limit gauges as the primary inspection was effective for the need to check 100% of components, under production conditions, with a CMM as a periodic sampling inspection.
Studi Literatur: Potensi Material Fe₃O₄/Zeolit sebagai Adsorben Efektif untuk Pengolahan Limbah Cair Industri Saputro, Erwan Adi; Mohamad Rizki Ramadhani; Alya Rahimah; Ardika Nurmawati
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Industrialization and population growth in Indonesia have led to a decline in environmental quality. The increasing activities of industries such as textiles, metal plating, mining, and pharmaceuticals have also generated large amounts of hazardous organic and inorganic wastewater. Adsorption has become a preferred method for treating such waste, particularly through the use of zeolite materials modified with magnetite (Fe₃O₄) to enhance efficiency and ease of separation. The Fe₃O₄/zeolite material exhibits high adsorption capacity toward various pollutants, making it a potential adsorbent for industrial wastewater treatment. This review aims to examine the potential of Fe₃O₄/zeolite as an adsorbent through a literature study by collecting and analyzing secondary data from various scientific publications. The selected literature was analyzed to compare synthesis methods, operating conditions, and adsorption efficiencies in order to obtain a comprehensive understanding of the performance and adsorption mechanism of Fe₃O₄/zeolite. Based on the review, Fe₃O₄/zeolite demonstrates good adsorption efficiency, with recorded values ranging from 42% to 99%.
Metanasi CO2 menggunakan Katalis Ni/Al2O3 dengan Variasi Konsentrasi KOH dan Temperatur Nanda Putri, Azadia; Robert Junaidi; Cindi Ramayanti
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The transportation sector is one of the largest contributors to greenhouse gas emissions, which play a significant role in global climate change. One preventative measure that can be taken is to convert carbon dioxide (CO₂) into methane (CH₄), known as the CO₂ methanation process. The purpose of this study was to produce methane gas with a higher conversion percentage, as well as to observe the effect of variations in operating temperature and KOH liquid concentration on the methane gas produced. In this study, CO2 was used as the raw material with a Ni/Al2O3 catalyst and zn promoter. The temperature was set at 165°C, 175°C, 185°C, 195°C, and 205°C, with KOH liquid concentrations varying from 4M to 5M. The resulting methane (CH4) gas will be analyzed using a Multi Gas Detector Analyzer.
Analisis Reduksi Emisi Gas Kendaraan Bermotor Menggunakan Adsorben Berbasis Biomassa Limbah Tempurung Siwalan Abdillah, Riko Ferdinand; Jawwad, Muhammad Abdus Salam
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Incomplete combustion of fossil fuels resulting from motor vehicle emissions releases hazardous pollutants such as carbon monoxide (CO) and hydrocarbons (HC). The high levels of these gases in emissions pose a significant threat to public health, creating an urgent need to develop and implement highly efficient processing or reduction technologies to ensure exhaust gas emission parameters remain within safe limits. This study demonstrates that activated carbon derived from siwalan (lontar) shell, specifically after activation with 25% Na2CO3 is highly effective in lowering exhaust gas emission levels, with the greatest reduction achieved using the largest adsorbent mass of 100 grams. The effectiveness of this adsorption is further supported by the statistical results of the Two-Way ANOVA model, which confirmed a significant influence of both adsorbent mass and adsorption process time. Consequently, the use of activated carbon from siwalan shell proves to be an effective and efficient solution for mitigating motor vehicle gas pollution. It holds significant potential for use as an emission reduction tool, particularly for older motor vehicles that lack existing emission control devices, and serves as a vital effort to comply with government regulations aimed at maintaining stable ambient air quality.
Kinerja Pelayanan Moda Transportasi Online Roda Dua Wilayah Layanan Kabupaten Pinrang (Kurir Online) Sri Yuliana Wali; Jasman; Misbahuddin
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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This study aims to examine the operasional performance of online motorcycle courier services and the factors considered by consumenrs when choosing online motorcycle courier services. Customers who have utilized online courier services are the subject of this research employing the Importance Performance Analysis (IPA) approach to determine that there are 90 respondents. The results show that 90 customers are mostly female (60%), have a high school education (62%), work as students (37%), are aged 21-30 years (54.4%), own a motorcycle as their private vehicle (82%), have an income of ≤ Rp. 1,000,000 (43%), make choices based on products (54%), use services once a week (36%), and order online courier services during the day (11:00 AM – 2:00 PM WITA). For the Importance Performance Analysis (IPA) method, the average expectation level is 4.65 and the average performance level is 4.03. From the IPA quadrant diagram, one indicator that needs improvement falls into Quadrant I. Five indicators that need to be maintained are in Quadrant II, five indicators with still low priority are in Quadrant III, and one indicator considered excessive falls into Quadrant IV. Consumer considerations in selecting online courier services are based on reasons where the majority of respondents state that safe and comfortable service accounts for 52%, and the advantages of using online courier services due to easy ordering account for 46%.
Pengolahan Limbah Cair Batik dengan Kombinasi Elektrokoagulasi dan Adsorpsi Muchammad Kasyfurrahman Shidqi; Raden Kokoh Haryo P; Muhammad A. S. Jawwad
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The batik industry is one of Indonesia’s rapidly growing cultural and economic sectors. However, its production process generates wastewater containing high levels of synthetic dyes, total suspended solids (TSS), and chemical oxygen demand (COD), which can deteriorate water quality. This study aims to evaluate the effectiveness of the combined electrocoagulation–adsorption process in reducing dye, TSS, and COD concentrations in batik wastewater. The electrocoagulation process used aluminum electrodes with current variations of 1–5 A and contact times of 30–150 minutes, followed by adsorption using activated carbon as the adsorbent. The results showed that the combined process achieved excellent pollutant removal efficiency. Dye concentration decreased from 6742 Pt-Co to 93 Pt-Co, TSS from 5100 mg/L to 80 mg/L, and COD from 2432 mg/L to 39 mg/L, with overall removal efficiencies of 98–99%. The optimal condition was obtained at 5A and 150 minutes of reaction time. In conclusion, the electrocoagulation–adsorption combination is proven to be effective and environmentally friendly for reducing pollutant loads in batik wastewater.

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