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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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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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Utilization of Recycled Glass as an Alternative to Silica Sand Filter Media in Reducing Total Suspended Solids (TSS), Turbidity, and Phosphates in Laundry Wastewater Wicaksono, Pandu; Firra Rosariawari
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study examines the comparative performance of recycled glass and silica sand as filter media in the slow sand filtration process to treat laundry wastewater. The main objective of this study was to evaluate the efficiency of recycled glass and silica sand in reducing Total Suspended Solids (TSS), turbidity, and phosphate content in laundry wastewater effluent. The selection of recycled glass as a filtration medium is due to its characteristic of having a small sphericity value so that its porosity value is large which results in a small headloss value. The use of recycled glass as an alternative media is an effort to reduce the exploitation of the use of sand media in filtration. The results of the study showed that the use of recycled glass was quite efficient than silica sand in reducing TSS and turbidity with a percentage of TSS removal (94%% vs 90%) and turbidity (90,57% vs 86,04%). While in phosphate removal, silica sand was more efficient than recycled glass with a percentage of removal (46,74% vs 83,48%). Before the research was conducted, a maturation phase was carried out for 2 weeks to form the schmutzdecke layer. The addition of Effective Microorganism 4 (EM4) was carried out to help the growth of the schmutzdecke layer in this study.
Rancang Bangun Alat Pemotong Daging Sapi Untuk Sate , Moehamad Helmy Fauzi; Arifin; Jojo Sumarjo
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This research focuses on the design and construction of a beef cutting tool specifically aimed at improving the efficiency and productivity of satay vendors. The tool utilises a 1/4 hp electric motor to drive a 10" circular blade, allowing the meat to be cut quickly and evenly. Key materials used in the construction of this tool include SS400 steel for the frame structure and stainless steel for the base, ensuring optimum strength and durability. Test results indicate that the tool significantly streamlines and speeds up the meat cutting process compared to current manual methods, thereby increasing the productivity of micro, small and medium enterprises (MSMEs). Future development proposals include improvements to ergonomics and safety features, as well as initiatives to reduce vibration for improved user comfort.
Molecular Dynamics Simulation and Mechanical Property Analysis of Unsaturated Polyester/Glass Fiber Composites Budi Ariani, Desi; Silvia; Shafwan Aziz, Malvin
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Composite materials are essential for engineering applications due to their superior mechanical properties. Unsaturated polyester reinforced with glass fiber is widely used but optimizing its mechanical performance remains challenging. This study combines experimental testing and molecular dynamics (MD) simulations to investigate the mechanical properties of unsaturated polyester/glass fiber composites. Composites were fabricated with varying glass fiber volume fractions, and their impact strength and density were tested. The results showed an optimal glass fiber fraction at 12.5%v, achieving the highest impact strength (142.80 kJ/m²) and increased density (1.4408 g/cm³). MD simulations validated these findings, highlighting the role of van der Waals forces in molecular aggregation and interfacial bonding. This study bridges experimental and MD computational insights, recommending the simulation of treated glass fiber in the future to explore the potential of treated glass fibers in enhancing the interfacial bonding and overall mechanical performance of unsaturated polyester/glass fiber composites.
Analisis Mikrobiologi Produk Tenggiri Beku (Scomber japonicus) di Balai KIPM Jakarta II Ilva Viola; Junianto
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Microbiological tests were carried out to analyse the quality of frozen mackerel products based on food safety standards. The aim of this study was to assess the microbiological quality of frozen mackerel samples coded 0357/I, 0388/I, 0113/N, 0145/N and 0173/N by testing for the presence of Escherichia coli, Listeria monocytogenes and Salmonella spp. using methods from SNI 2332.1:2015, SNI ISO 11290-1:2012 and SNI ISO 6579-1:2017. The results showed that Escherichia coli, Listeria monocytogenes and Salmonella spp. were not detected in any of the samples tested. These results indicate that the products meet food safety standards and reflect the application of good hygiene practices and hygienic production processes. The absence of pathogenic bacteria also suggests that low-temperature storage effectively prevents bacterial growth. Based on these results, frozen mackerel products are considered to be of good quality, safe for consumption and in compliance with international standards.
Identifikasi Potensi Bahaya Pekerja Pada Proses Welding Proyek Support Frame Menggunakan Metode HIRARC di PT. XYZ Ryan Setyo Putro Robawa; Joumil Aidil SZS
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The steel and construction industry is currently growing very rapidly due to the increasing demand from various parties who want to see the progress of infrastructure in Indonesia. Design, manufacturing, and construction are the activities of PT XYZ, a government company. The majority of initiatives are focused on the production of steel-based goods. As personnel in the fabrication and construction industry often come into direct contact with heavy machinery and materials while performing their duties, accidents and occupational diseases are hazards that are difficult to prevent. Welding is one area of work that has a high rate of accidents and occupational diseases. To ensure the welding process runs safely, this research seeks to identify potential risks and hazards that may arise and carry out risk control in each work activity. Qualitative descriptive techniques combined with risk analysis using the HIRARC method is the methodology used in this research. Based on the results of the study, overall there are fourteen possible risks, including two high categories, one medium category, and eleven extreme categories. By increasing employee awareness of occupational safety and health (OHS), PT XYZ can increase productivity without sacrificing employee welfare.
Identifikasi dan Proyeksi Timbulan Sampah Mengandung B3 Rumah Tangga di DKI Jakarta Wahyu Dewi Yantini; I Made Wahyu Widyarsana
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The growing population and increased community activities in DKI Jakarta have resulted in higher waste generation, averaging 0.7 kg per person per day, or 7,800 tonnes, which is primarily disposed of at the Bantargebang TPST. Although dominated by organic and inorganic waste, household hazardous waste (HHW) is also found at the community level. This is attributed to the use of chemical products in household activities, such as cleaning and personal care products, paints, pesticides and electronics. A study of 150 households of different income levels found an average generation of HHW of 0.0097 kg per person per day, with specific averages of 0.0098 kg, 0.009 kg and 0.01 kg for low, middle and high income levels respectively. HHW consists mainly of packaging waste from personal care and beauty products (28.62%), cleaning and household products (26.34%) and leftover medicine/medical waste (23.17%). HHW with infectious (39.32%) and toxic (35.63%) properties are more common than other properties. Waste generation projections, modelled using a simple dynamic system simulation, estimate that waste generation will reach 106,688.02 tonnes per year over the next 20 years.
Perancangan Alat Pencetak Kulit Dimsum yang Ergonomis Pada UD. Soponyono Helda, Helda Prisdana Hardinta; Handy Febri Satoto
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

UD. Soponyono is a business group operating in the food sector. The process of making dimsum skin takes 2.5. Soponyono produces up to 100 kg of dim sum skin every day with a working time of 8 hours per day. Good working posture can support worker comfort and reduce the risk of injury. In this research, measurements were carried out using anthropometric and percentile approaches to determine worker dimensions. This approach aims to obtain accurate data regarding variations in workers' body sizes, so that the results can be used to design ergonomic tools or work facilities. The resulting data includes various worker body parameters, which are then analyzed to ensure compliance with design requirements and occupational safety standards. The dimensions used for the design are vertebral height 84.50 cm, shoulder width 45.58 cm, upper arm length 35.03 cm, and forward arm span 74.26 cm. To operate this tool, press the handle of the tool and then press it down to make the printing process easier.
Analisis Pengaruh Variasi Jarak Tray terhadap Kinerja Tray Aerator dalam Menurunkan Kandungan Besi dan Mangan pada Air Sumur Puspitasari, Ratna Endah Dwi; Euis Nurul Hidayah
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study aims to analyse the effect of tray spacing variations on the performance of tray aerators in reducing iron (Fe) and manganese (Mn) concentrations in well water. A quantitative experimental method was used with three tray spacing variations (30 cm, 40 cm and 60 cm) and different tray levels. The results indicate that the tray aerator with 40 cm tray spacing achieved iron removal efficiencies of up to 85.83% and manganese removal efficiencies of up to 35.14%, outperforming other spacing configurations. Tray spacing and aeration time were found to have a significant effect on removal efficiency, with 40 cm spacing providing an optimum balance between turbulence and contact time. In addition, the highest increase in dissolved oxygen (DO) occurred at 30 cm tray spacing. This study concludes that proper tray spacing arrangements can improve the effectiveness of tray aerators in treating well water.
Analisa Skedul Proyek Pengadaan dan Pemasangan High Pressure Heater PLTU dengan Metode Earned Value Analysis di PT. X Tiara Belen Rante Tadung; Iriani
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT. X is a strategic enterprise focusing on the production of the main equipment of the country's defense system, especially in the marine field. One of the company's business lines includes shipbuilding and non-ship projects, such as the procurement and installation of HPH 3 Unit 2 at coal-fired power plants. Based on the importance of schedule planning or project management in the company, a project scheduling analysis was carried out on the procurement and installation sub-work of HPH 3 Unit 2 PLTU using the Earned Value Analysis (EVA) method, which is an approach in project management to make it easier to control time and costs. The data used in this study are Master Schedule, and S-Curve. The results of the analysis show that the estimated time remaining (ETS) is 499 days, with a projected total project completion time (EAS) of 626 days. In the S-Curve chart, the actual progress of the project is seen in line with the planning graph. In addition, the value of BCWP (Budgeted Cost of Work Performed) is mostly greater than that of BCWS (Budgeted Cost of Work Scheduled), which indicates the acceleration of project progress compared to the planned schedule. 
Analisis Peramalan Permintaan Consumable Material Pada Divisi Rekayasa Umum PT XYZ dengan Metode Time Series Menggunakan Software POM-QM Muhammad Zainur Roziqin; Rr. Rochmoeljati
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Forecasting is an analytical method that involves calculations with both qualitative and quantitative approaches, which aim to estimate future events. Every company, including PT XYZ, needs an inventory control system to achieve optimal inventory levels. The problem that exists in the scope of supplying consumable materials in the General Engineering Division of PT XYZ is that every month there is often a shortage of consumable materials, especially in the 3 most frequently used consumable materials, namely UK 4'' x 6 Grinding Stones, DIA Roll Brushes. 1” X 4 ”L, and Wire Rod DIA. 1.2 MM. This research applies the Time Series Simple Moving Average and Weighted Moving Average methods as an approach to analyze historical data and forecast future material demand. To support this analysis, POM-QM software is used which has the ability to process and process time series data effectively. After the calculation is carried out, the results of UK 4 'x 6 Grinding Stone forecasting using the Weighted Moving Average method produce a 13th period forecast of 156 pcs. Forecasting Brush Roll DIA. 1 “X 4 ”L using the Weighted Moving Average method resulted in a 13th period forecast of 29 pcs. While forecasting Wire Rod DIA. 1.2 MM using the Simple Moving Average method resulted in a 13th period forecast of 630 kg.

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