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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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Inovasi Operasional untuk Efisiensi Biaya dan Peningkatan Profit di Industri Pengolahan Limbah Plastik Marlina, Marlina; Sufitrayati, Sufitrayati; Amri, Saiful; Syamsuddin, Nurfiani; Radhiana, Radhiana; Maulana Akbar, Rian
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study explores operational innovation as a strategic solution for cost efficiency and profit improvement in the plastic waste processing industry. The research aims to identify effective strategies and methods for operational optimization while addressing key challenges such as high production costs, global competition, and environmental sustainability. The methodology involves a qualitative approach with case studies and literature analysis to examine the application of smart technologies, lean manufacturing, and circular economy principles. Findings highlight significant cost reductions, enhanced operational efficiency, and strengthened competitive advantage. The study contributes to the development of sustainable practices and innovation-driven growth for the plastic waste processing sector.
Pengaruh Sistem Produksi Lean terhadap Pengurangan Biaya Produksi dan Peningkatan Profitabilitas di Industri Pengolahan Limbah Plastik Radhiana, Radhiana; Mukhdasir, Mukhdasir; Surya, Jen; Syamsuddin, Nurfiani; Maryam, Maryam; Syafitri, Aulia
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The plastics recycling industry plays a vital role in reducing the environmental impact of plastic waste. However, challenges such as high operating costs and low profit margins are hindering its growth. This article explores the application of lean production systems as a potential solution to improve operational efficiency and profitability in this industry. By reducing waste at various stages of production, such as energy consumption, raw materials and production time, lean has been shown to reduce operating costs by up to 10% in large-scale production. In addition, Lean enables companies to increase production capacity without significantly increasing costs. Despite the challenges associated with initial investment and organisational culture change, the long-term benefits of implementing Lean, such as increased profit margins and competitiveness, make it a highly relevant strategy for the plastics recycling industry.
Strategi Pemilihan Bahan Baku Daur Ulang untuk Meningkatkan Profitabilitas di Industri Pengolahan Limbah Plastik Ulfia, Ulfia; Rahmi, Rahmi; Yusuf, Zulfan; Radhiana, Radhiana; Mukhdasir, Mukhdasir; Humaira, Ajrina
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The plastic waste recycling industry plays a crucial role in reducing environmental impacts while creating economic value through recycling. This study aims to identify strategies for selecting recycled raw materials that can enhance the profitability of the plastic recycling industry. Using a literature review approach, the study explores various sources of raw materials, such as household, industrial, and commercial waste and analyzes their quality, contamination levels, and processing costs. The findings indicate that high-quality raw materials with low contamination levels, such as industrial waste, result in higher production efficiency and lower costs compared to other materials. Additionally, the adoption of modern technologies such as chemical recycling can increase production efficiency by up to 85%. This study contributes by providing a strategic framework for selecting appropriate raw materials, supporting both environmental sustainability and industry profitability.
Optimalisasi Proses Bisnis UMKM Kerajinan Gerabah melalui Sinergi Inovasi Pemasaran dan Manajemen Risiko Terstruktur Jalil, Ivon; Malahayati, Malahayati; Yana, Syaifuddin; Heriyana, Heriyana; Ilyas, Ilyas; Nengsih, Rita
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study explores the optimisation of business processes through the synergy of marketing innovation and structured risk management, particularly for small and medium-sized enterprises (SMEs). SMEs often face challenges such as limited resources, market uncertainties and fluctuating raw material prices. By integrating marketing innovation with structured risk management, companies can improve operational efficiency and mitigate potential risks, creating a solid foundation for sustainable growth. Marketing innovation, particularly through digital platforms, enables SMEs to expand their market reach, attract new customers and remain competitive. Meanwhile, structured risk management ensures that innovative strategies are implemented safely and effectively. This synergy not only minimises operational and financial losses, but also enables SMEs to adapt to dynamic market conditions. The study highlights the importance of combining process optimisation with strategic innovation to increase productivity, reduce waste and remain competitive in the modern business environment. By adopting this integrated approach, SMEs can achieve long-term profitability and resilience in a rapidly changing economic landscape.
Penentuan Prioritas Penanganan Genangan di Kecamatan Warudoyong, Kota Sukabumi Audi Anugrah Somali; Eka Wardhani
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Warodoyong District is the district with the most puddles in Sukabumi City, with 9 puddles. The 9 puddles need to be prioritised. The purpose of this study is to calculate the priority value for handling puddles that occur in Warodoyong District. It is hoped that this study can be used by the Sukabumi City Regional Government and related agencies in handling puddles that occur. The determination of puddle management priorities is based on the Minister of Public Works Regulation No. 12 of 2014 on the Implementation of Urban Drainage Systems. Based on the results of the weighting carried out, puddle G1 has the highest value of 336, so it becomes the main priority in handling puddles that occur. Efforts to deal with puddles immediately are necessary because puddles occur in areas used by the community in their daily activities.
Penggunaan Metode Fuzzy Failure Mode and Effect Analysis Pada Hasil Inspeksi Proteksi Katodik PT PGAS Solution Area Bekasi Keisha Dinda Syamikha; Mega Cattleya Prameswari Annissaa Islami
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Cathodic protection is used to prevent corrosion in gas pipeline networks, so it is necessary to conduct regular inspections to ensure its effectiveness. This research uses the Fuzzy Failure Mode and Effect Analysis (Fuzzy FMEA) method to analyse the results of cathodic protection inspections on the PT PGAS Solution Area Bekasi gas pipeline network, identify the causes of failures, and determine the control actions that can be taken based on the cause of the failure. Data obtained from cathodic protection inspection activities and expert interviews show that the most common failures are those with low potential values. FRPN calculations using the Fuzzy FMEA method show that environmental factors are critical causes of low potential failures. The main cause is an environment with a soil barrier that is too high, so control measures can be taken by adding additional anodes, lowering the soil barrier or replacing the anode with a larger one. It is hoped that the results will become a recommendation for companies to solve the problem of low potential value disturbances in cathodic protection.
Karakterisasi Polutan Logam dan Potensi Radioaktif dalam E-Liquid Rokok Elektrik Huboyo, Haryono Setiyo; Naristiana Putra, Alif Aziz; Bimastyaji Surya Ramadhan; Ika Bagus Priyambodo
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Electronic cigarettes have become a popular alternative for smokers, but research on the pollutants contained in these products remains limited, especially in Indonesia. This study aims to characterise the metal content and radioactive potential of e-liquid from electronic cigarettes marketed in Indonesia. Five e-liquid samples from popular brands were selected based on user surveys and analysed to detect potential hazards. The samples consisted of mango-flavoured saline nicotine e-liquid with a nicotine concentration of 30 mg, which was analysed using neutron activation analysis (NAA) and total alpha and beta radiation measurements. The results showed the presence of heavy metals such as aluminium (Al), titanium (Ti), copper (Cu), nickel (Ni), arsenic (As) and manganese (Mn) with varying concentrations between samples. Aluminium was the dominant metal with the highest concentration reaching 66.256 ± 6.131 µg/g. Although alpha and beta radiation activity was below the detection limit, the presence of certain heavy metals, such as nickel and arsenic, indicates potential health and environmental risks. This study provides valuable insights into the contaminants in e-liquid products in Indonesia, which can be used as a basis for developing regulations to improve product safety.
Analisis Penjadwalan Percepatan Proyek Outfitting Machinery Blok ASA 2A S Pada Pembuatan Kapal A Menggunakan Microsoft Project dengan Precedence Diagram Method di PT. XYZ Aryaduta, Galang; Farida Pulansari
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The shipbuilding project is highly complex, involving multiple phases and interdependent activities with extended durations. One of the main challenges in this project is how to design an effective schedule to minimise the completion time without compromising the quality of work. The objective of this study is to analyse the project acceleration of the Machinery Outfitting of Block ASA 2A S of the A Ship at PT. XYZ using Microsoft Project software and the Precedence Diagram Method (PDM). The research process began with the collection of data on job sequences, activity durations and dependencies between activities. This data was processed using PDM to identify the critical path, which consisted of eight main activities: A, B, D, E, G, H, K and M. Through critical path analysis, rescheduling was carried out to accelerate project completion. The results show that the project duration was successfully reduced from the original plan of 61 days to 54 days, enabling PT. XYZ to complete the machinery outfitting of Block ASA 2A S on the A Ship project by 1 September 2020. This improvement increased time and cost efficiency without compromising project quality. This study demonstrates the effectiveness of using Microsoft Project with PDM to manage complex project schedules.
Strategi Pengklasifikasian dan Peramalan Untuk Mengidentifikasi Permintaan Sparepart Bearing di PT Semen Indonesia (Persero) Laxmi Ratnaningsih; Moch Tutuk Safirin
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT Semen Indonesia (Persero) Tbk. faces challenges in assessing the spare parts requirements of different units. The inability to prioritise procurement has led to overstocking of non-critical parts and shortages of essential parts. In addition, there are problems in fulfilling spare parts requests in a timely manner due to unpredictable demand patterns for certain items. Therefore, a systematic approach is needed to analyse spare parts demand characteristics using a combination of ABC, SDE and ADI-CV classifications and to evaluate the effectiveness of the Double Exponential Smoothing (DES) forecasting method. The classification results show that 47 spare parts items fall into the AS and AD categories, which are characterised by high investment values and long procurement lead times, making them top priorities. Demand pattern analysis revealed 42 items with lumpy patterns and irregular intervals, requiring further analysis to accurately estimate spare parts demand. The Double Exponential Smoothing (DES) forecasting method produced forecasts that closely matched actual demand. This combination of classification and forecasting methods effectively prioritises spare parts and optimises strategic decision making in spare parts procurement.
Implementasi Manajemen Risiko Studi Kasus : Alur Pengadaan Jasa Rutin Pada Salah Satu Unit di PT XXX Melalui Pendekatan Risk Assessment Rafida, Halimas Nafi; Rusindiyanto
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Procurement of goods and services is a critical step for an organisation to support its operational activities. This activity plays a vital role in the company's operations and is often faced with potential risks that require accurate and optimal risk mitigation. This study was conducted at a unit of PT XXX to analyse and develop risk mitigation strategies in the procurement process, specifically for routine services. The approach used in this study is risk assessment. The research methods include primary data collection through interviews and observations, as well as related references. The results show that out of 16 activities in the procurement process of routine services, 23 risk analyses were identified. These risks were then categorised according to their risk level: 5 high level risks, 17 medium level risks and 1 low level risk. The risk mitigation strategy planning focuses on the high level risks to control and reduce their impact.

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