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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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Sintesis dan Karakterisasi Katalis Aluminosilikat dari Kaolin Zafirah, Shakanti 'Aqilah; Windhy Mutiara Salsabillah; Sintha Soraya Santi; Nurul Widji Triana; Susilowati
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 aluminosilicate catalysts derived from Indonesian kaolin through the hydrothermal method with variations in surfactant type and aging temperature. Kaolin served as the main source of silica and alumina, while CTABr (cationic) and PEG (non-ionic) acted as structure-directing agents that guided the formation of the catalyst pore framework. The synthesis was carried out at aging temperatures of 25°C, 40°C, 50°C, 65°C, and 70°C to investigate their effects on the functional groups and crystallinity of the catalysts. FTIR analysis revealed the presence of main Si–O–Si and Al–O–Si functional groups in all samples, with additional organic peaks attributed to the surfactants. Samples synthesized with CTABr showed sharper spectral peaks, indicating a more ordered structure. XRD analysis showed that the aluminosilicate catalyst synthesized with CTABr at 50°C exhibited the highest diffraction intensity (2615 cts), representing higher crystallinity compared to the PEG-based sample, which remained amorphous. SEM observations demonstrated that PEG produced smoother and more porous particle morphology, while CTABr resulted in agglomerated particles. Overall, the combination of CTABr surfactant and 50°C aging temperature yielded the best synthesis result with a stable semi-crystalline structure. This research highlights the great potential of local kaolin as a sustainable and efficient raw material for aluminosilicate catalyst production.
Hazard Identification Risk Assessment Kegiatan Praktek Structural Fire Pada Program Studi Pertolongan Kecelakaan Tri Saputra, Surya; Supri
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Structural Fire Practice is a firefighting training activity in buildings carried out to equip students with technical skills in dealing with fire incidents in buildings or airport facilities. The risk to physical safety, health, and equipment damage is very high if hazard identification and risk management are not carried out systematically. The purpose of this study is to identify hazards and assess potential risks and provide mitigation so that these risks do not cause more severe consequences. This study was conducted using the Hazard Identification and Risk Assessment (HIRA) approach. The results of the study showed that there were 31 potential hazards covering human, equipment, environmental, and work procedure aspects. The results of the risk assessment showed that four potential hazards were in the intolerable category, namely: SCBA compressors that are not properly maintained, hoses that do not meet standards, manual fuel injection, and backdraft or flashover conditions. Mitigation measures implemented include increased supervision of equipment maintenance, the use of thermal imaging cameras, the implementation of SOPs, and safety training and briefings. The implementation of HIRA in training activities provides significant benefits in increasing safety awareness and reducing the potential for accidents in aviation education environments.
Analisa Cacat Las GMAW Pada Proses Pabrikasi Bak Dump Truck Menurut AWS D1.1 2015 Dengan Metode Inspeksi Visual di PT Metalindo Teknik Utama Pratama, Dani Nugraha; Rizal Hanifi; Ratna Dewi Anjani
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The welding quality of dump truck fabrication plays a crucial role in ensuring structural strength and production reliability. The Gas Metal Arc Welding (GMAW) process has the potential to generate welding defects when welding parameters and material preparation are not properly controlled. This study aims to identify welding defects occurring in the fabrication process at PT Metalindo Teknik Utama and to evaluate their acceptance based on the AWS D1.1:2015 criteria through visual inspection. Visual inspection was conducted on several weld joints using a welding gauge and vernier caliper to measure undercut depth, reinforcement height, and surface defects. The results show six types of welding defects, namely undercut, spatter, porosity, pin hole, surface cold lap, and excessive capping. According to AWS D1.1:2015, three defects were classified as rejected (undercut of 1.25 mm, pin hole >3 mm, and 4 mm capping), while spatter, porosity, and surface cold lap were considered accepted. These defects were mainly caused by improper welding parameters, insufficient welding technique control, and inadequate surface preparation. Corrective actions such as grinding, gouging, and re-welding were applied. The results indicate that visual inspection based on AWS D1.1:2015 is effective in evaluating weld quality and supporting improvement in the production process.
Evaluasi Kepuasan Kerja Karyawan di Industri Manufaktur Presisi melalui Pendekatan Importance-Performance Analysis Khairullah, Mohammad Reatha Deo; Tarigan , Amenda Septiala; Alamsyah, Nanang; Kurnia, Tyas Eka
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The precision manufacturing sector requires a stable and competent workforce to ensure smooth production processes, making an understanding of employee job satisfaction essential for maintaining organizational performance. This study aims to evaluate employee satisfaction at PT XYZ using a descriptive quantitative approach through a survey of 21 purposively selected respondents. Data were collected using a closed-ended questionnaire consisting of ten job satisfaction indicators and analyzed using the Importance-Performance Analysis (IPA) framework. The results show an employee satisfaction index of 74.35 percent, indicating a moderately satisfied category. The IPA mapping reveals that interpersonal relation requires priority improvement due to its high importance but relatively low satisfaction level. Meanwhile, quality of work, knowledge of job, dependability, and performance fall into the category of attributes that should be maintained. Other indicators such as adaptability, initiative and resourcefulness, judgment, and leadership quality show both low importance and low satisfaction, suggesting that gradual attention is still needed to strengthen the company’s long-term organizational performance.
Optimalisasi Silika Gel Dari Sekam dan Jerami Padi Ditinjau Dari Rasio Bahan Baku dan Konsentrasi H2SO4 dengan Metode Ekstraksi Permata Sari, Shefia Dian; Meidinariasty, Anerasari; Apri Mujiyanti
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This research aims to optimize silica gel synthesis from rice husk and rice straw through variations in raw material ratio and sulfuric acid concentration. Silica gel was produced through alkaline extraction using NaOH followed by precipitation with H₂SO₄. Variations in husk–straw composition (100:0, 75:25, 50:50, 25:75) and H₂SO₄ concentrations (1 M, 2 M, 3 M) were tested to evaluate their effects on moisture content, water vapor adsorption capacity, pH, and functional groups by FTIR. Results show that the 75% husk–25% straw ratio with 3 M H₂SO₄ yields the optimal silica gel characteristics, including the lowest moisture content, highest adsorption capacity, and stable pH. FTIR analysis confirms the formation of silanol and siloxane functional groups, indicating successful synthesis. This study demonstrates that agricultural waste can be converted into high-quality silica gel through optimized extraction parameters.
Karakterisasi katalis dari Zeolit Alam/KF menggunakan metode X-Ray Diffraction Nurrizka, Zahra; Zamhari, Mustain; Yerizam, Muhammad
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Natural zeolite is a porous material with great potential as a heterogeneous catalyst, but its catalytic activity still needs to be improved. One way to improve the basic properties of zeolite is by modifying it using potassium fluoride (KF). This study aims to produce a strong base catalyst based on natural zeolite/KF and characterize its crystal structure using the X-Ray Diffraction (XRD) method. The catalyst synthesis process includes initial zeolite activation, impregnation with varying KF concentrations (1.5%–3.5%), and calcination at 500–700°C. The XRD characterization results show that the sample with a KF concentration of 2.5% and a calcination temperature of 600°C (code T248) produced the best catalyst, with a crystallite size of 176 Å and the lowest microstrain of 0.25%, as well as a very high degree of crystallinity. This indicates that these conditions are optimal for producing a stable and regular crystal structure. The catalyst produced in this study has the potential to be used in various chemical reaction applications, such as transesterification for biodiesel production.
Analisis Pemanfaatan SIINas Menggunakan Metode SWOT Dalam Mendukung Strategi Pembangunan Industri Berkelanjutan Pemerintah Provinsi Jawa Timur Damara Hutananto, Raditya; Yekti Condro Winursito
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The National Industrial Information System (Sistem Informasi Industri Nasional/SIINas) is a national platform developed by the Ministry of Industry of the Republic of Indonesia to collect, manage, and present industrial data in an integrated manner as a basis for formulating industrial development policies. In East Java Province, the utilization of SIINas is one of the key instruments supporting sustainable industrial development strategies; however, its implementation still faces various challenges at both the business and local government levels. This study aims to analyse the utilization of SIINas at the Department of Industry and Trade of East Java Province using the Strengths, Weaknesses, Opportunities, and Threats (SWOT) method in order to identify internal and external factors that influence the optimization of the system. A descriptive qualitative approach was employed, drawing on internship activities at the Division of Industrial Facilities, Supervision, and Control (SP3I), including direct observation, informal interviews with officials and business actors, and document analysis related to SIINas, Online Single Submission (OSS), and the Geographical Industry Information System (GIIS). The results show that SIINas has several strengths, such as regulatory obligation, digital recording of industrial data, and online accessibility, but also weaknesses, including complexity of use, limited system integration, and infrastructural constraints in certain regions. 
Perencanaan Sistem Pengelolaan Air Limbah Domestik Terpusat (SPALD-T) di Kelurahan Kujangsari, Kota Bandung Halomoan, Nico; Barri, Defa Abdul
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Kujangsari Village is classified as an urban slum area located in Bandung Kidul District, Bandung City, with a total area of 1.3 km². Therefore, Kujangsari Village requires planning for a Domestic Wastewater Management System. One of the things that needs to be done is to solve the problem of domestic wastewater distribution by planning a Domestic Wastewater Management System (SPALD). Initial analysis shows that Kujangsari Village is suitable for service with a centralized SPALD at the settlement scale based on considerations of achieving safe sanitation quality. The planning was conducted by considering technical and financial aspects. Technical aspects include wastewater flow rate calculations, pipe dimensions, wastewater flow velocity, pipe excavation, wastewater treatment plant (WWTP) dimensions, and technical planning drawings. Financial aspects include the costs of constructing the wastewater collection and treatment system. The results of the centralized DWMS planning for Kujangsari Village indicate that the designed system will serve a population of 41,142 people with a pipeline network of 19,410 meters in length, utilizing pipes with diameters ranging from 110 to 267 milimeters. The wastewater will be treated in an Anaerobic Baffled Reactor (ABR) WWTP with a capacity of 7,345.24 m³/day. The estimated planning cost is IDR 15,812,591,574, with details of IDR 9,185,967,724 for domestic wastewater distribution and IDR 6,626,623,850 for the construction of the ABR wastewater treatment plant.
The Effect of Additional Composition Substrates on The Rate and Quality of Food Waste Bioconversion by Black Soldier Fly Larvae and Superworm Hakim, Mohammad Najmi Rafi; Mirwan, Mohamad
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Food waste has become one of the main problems in environmental management in Indonesia. Food waste that is not managed properly can cause groundwater pollution, greenhouse gas emissions, unpleasant odours, and bacterial breeding grounds, for such examples are tofu pulp and expired bread. This research aims to analyze the effect of additional composition of tofu waste and expired bread substrates on the rate and quality of food waste bioconversion by black soldier fly larvae and superworm. The research method used direct experimentation with variations in substrate composition over 12 days (BSF) and 30 days (Superworms).  The highest Waste Reduction Index (WRI) was achieved by BSF in the treatment with 60% tofu pulp and 40% expired bread (M4) at 7,65. For Superworm, substrate consisting of food waste and tofu pulp (K2) produced the highest reduction percentage of 63,4% and the Waste Reduction Index (WRI) value of 2,11%. for the final weight and best ECD value for BSF larvae were found on variable M5 consisting of food waste, tofu pulp 50%, and expired bread 50%, with a final weight of 0,3 grams per larva and an ECD value of 16,25%. Variable K2 recorded the highest final weight and ECD value for Superworm, with a final weight of 4,15 grams per larva and an ECD value of 2,94%. The characteristics of the bioconversion residue (frass) from both types of larvae meet the C, N, P, K standards in accordance with SNI 19-7030-2004, the results showed that the combination of tofu pulp and expired bread substrates in treatments M4 and K4 produced residues with a more balanced macro nutrient content, making them the most optimal.
Analisis SWOT Integrasi Data OSS dan SIINas Menggunakan Single Sign-On untuk Meningkatkan Efektivitas Pengelolaan Industri di Jawa Timur Vemas Catur Kurniawan; Minto Waluyo
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Optimizing industrial management is key to spurring economic growth in East Java, particularly through the optimization of digital platforms, namely the Online Single Submission (OSS) and the National Industrial Information System (SIINas). Unfortunately, the operation of these two platforms is not yet integrated, resulting in complex administrative flows, data duplication, and lack of easy access, especially for small and medium enterprises (SMEs) that are not yet familiar with technology, which are common challenges. Many business owners experience difficulties in understanding and using digital systems, so they need simpler and more accessible solutions. This study aims to analyze the need for implementing a Single Sign-On (SSO) system as a solution to integrate data between OSS and SIINas to improve efficiency, transparency, and ease of use. The results show that implementing SSO can help reduce administrative burdens, increase transparency, and speed up processes. However, several challenges remain, such as the community's inability to accept technology, limited technological infrastructure, and the need for digital training for business owners who are not yet familiar with it. Recommended strategies include strengthening technological infrastructure, providing easy-to-understand training, providing offline access, and strengthening data security systems.

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