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Muhammad Nizar
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Journal Serambi Engineering (JSE)
Published by Universitas Serambi Mekkah Aceh
ISSN : 25283561     EISSN : 25411934     DOI : -
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering
Jurnal ini bertujuan untuk merancang dan mengembangkan sistem turbin angin sebagai alat pengusir hama burung sekaligus sebagai pembangkit listrik alternatif di area persawahan. Penelitian difokuskan pada pemanfaatan energi angin untuk menggerakkan perangkat mekanik penghasil suara (sebagai pengusir burung pipit) serta menghasilkan energi listrik menggunakan generator Nema17 untuk pengisian baterai. Selain itu, penelitian ini bertujuan menganalisis hubungan antara kecepatan angin, desain blade (panjang dan karakteristiknya), putaran turbin, serta tegangan dan daya listrik yang dihasilkan, guna memperoleh performa optimal dalam kondisi lapangan
Arjuna Subject : -
Articles 972 Documents
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Sistem Monitoring Kebisingan dan Polusi Udara Pada Ruang Mesin CNC Router Berbasis Internet of Things Priyandoko, Gigih; Mahmud Habibi; Romadhon
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

CNC machine rooms are industrial work environments with high levels of noise and potential air pollution originating from high-speed spindle motor operations, mechanical friction, and metal-cutting processes. Currently, monitoring these conditions is largely done manually. This study aims to design and implement an Internet of Things (IoT)-based system that can continuously and in real time monitor the work environment for noise and air pollution. This study employed a research and development approach integrating noise and air quality sensors controlled by an ESP32 microcontroller and connected to a cloud platform for data acquisition and visualization. The system's accuracy and performance were evaluated by taking direct measurements of various CNC router cutting materials and comparing the sensor results with those of standard measuring instruments. Results showed that the system reliably monitored noise and dust concentration, with average measurement errors of 2.9% and 1.3%, respectively. Implementing this system effectively provides an early warning when workplace parameters exceed safety thresholds, thereby supporting rapid, data-driven occupational safety and health (OSH) risk mitigation decisions.
Optimasi Gerakan Operator Dengan Time and Motion Study untuk Efisiensi Produksi Syafruddin Dwi Saefi Ismail; Anita Oktaviana Trisna Devi; Bekti Nugrahadi
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The garment industry, as a labor-intensive sector, faces challenges related to efficiency and production cost due to the large number of operator movements that do not add value. As a garment manufacturing company, PT Fashion Stitch Joshua experiences this problem in the form of increased cycle time causes by many non value added operator motion. This study aims to design standardized motion to improve efficiency. The method used is a time and motion study through therbligh analysis to identify, classify, and eliminate ineffective movement. Data were collected through direct observation, video documentation, and cycle time measurement. The result show that the high cycle time in the join side seam process is caused by the large proportion of ineffective motion in the operators work methods. Therbligh analysis indicates that non value added motion elements significantly contribute to reduced efficiency, thereby confirming the hypothesis regarding the importance of improving work methods. Through the redesign of motion based on therbligh principles, the cycle time was reduced from 39.09 second to 29,50 second, representing an efficiency improvement of 24%. The implementation of standardized motion design is proven to be more effective in improving efficiency and can serve as a reference for production processes in the garment industry.
Evaluasi Instalasi Pengolahan Air Limbah Industri Kimia PT X Yalka Sabilla; Eka Wardhani
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The wastewater treatment plant of PT X, a chemical polymer industry, was evaluated to assess its performance in treating wastewater to meet industrial environmental quality standards. This evaluation includes an analysis of effluent quality based on BOD, COD, TSS, TDS, pH, and temperature parameters. Secondary data from PT X's laboratory testing showed non-compliance with standards based on the Minister of Environment Regulation Number 05 of 2014, particularly for COD and BOD parameters. The efficiency of the wastewater treatment plant in reducing parameters was COD 97.7%, BOD 97.7%, TSS 99%, and a TDS value of -289.3%. The design evaluation showed that several treatment units, such as the coagulation-flocculation tank, were located in the same unit and had the same speed. Additionally, the coagulation detention time exceeded the design criteria by 11,833.2 seconds. This causes wastewater treatment to not function optimally. To improve the performance of the WWTP, it is recommended to adjust the volume of some treatment units, optimize operational parameters, and conduct regular monitoring to ensure the system continues to operate optimally.
Ekstraksi ZnO Limbah Baterai Zn-C sebagai Katalis ZnO-Zeolit untuk Degradasi Air Limbah Laundry Berdasarkan Massa dan Waktu Kontak Yuniar; Wasiran, Yulianto; Yuliandi, Rizki Brillian; Oktaviani, Erika Dwi; Safira, Asri; Novita, Sherly Fitria
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

By utilizing waste from Zn-C batteries, it is possible to produce ZnO semiconductor compounds from waste water laundry, which fall under the category of photocatalysts that can decompose harmful organic and inorganic compounds from waste laundry. The research method employed is coprecipitation, which involves synthesizing ZnO through a solution precipitation process, followed by mixing it with zeolite and testing the photocatalyst's activity with varying contact times of 30, 60, 90, and 120 minutes, as well as different weights of ZnO-Zeolite photocatalysts at 0.5, 0.75, and 1 gram. The characterization results of ZnO-Zeolite indicated a crystal size of 23.94 nm and a band gap energy of 2.98 eV. To evaluate the effectiveness of the ZnO-Zeolite photocatalyst, parameters such as pH, Chemical Oxygen Demand (COD), and the degradation of surfactant compounds in laundry waste were analyzed using UV-Vis Spectrophotometry. The findings revealed a decrease in pH from level of 9.18 to 7.25, and a reduction in COD from 269 mg/L to 64 mg/L, representing a percentage decrease of 76.21%. Additionally, the degradation of surfactant levels dropped from 2.817 mg/L to 0.035 mg/L, achieving a degradation percentage of 98.76% with a catalyst mass of 0.75 g and a contact time of 90 minutes.
Inovasi Teknologi Daur Ulang Plastik untuk Meningkatkan Efisiensi dan Profitabilitas Usaha Mikro Hamdiah, Cut; Marlina, Marlina; Zainuddin, Zainuddin; Rahmi, Rahmi; Nabila, Sausan
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study explores the role of plastic recycling technology innovation in enhancing cost efficiency and profitability among micro-enterprises, while contributing to sustainable development goals. Using a qualitative literature review approach, the research synthesizes findings from international and national sources, including OECD, UNEP, UNIDO, the Indonesian Ministry of Industry, and various academic journals. The analysis identifies three main technological approaches—mechanical, chemical, and digital (smart recycling)—each offering different levels of efficiency, investment requirements, and relevance to micro-enterprises. The results indicate that mechanical recycling remains the most feasible option due to its low cost and ease of implementation, while chemical and digital recycling hold potential for long-term transformation when supported by policy and financial incentives. The study also highlights the social and environmental benefits of adopting recycling innovations, including waste reduction, job creation, and the development of green markets. Overall, technological innovation in plastic recycling serves as a strategic instrument for achieving economic efficiency, business profitability, and sustainability within Indonesia’s circular economy framework.
Strategi Inovatif dalam Mengelola Risiko Pasokan Bahan Baku Limbah Plastik Ikhbar, Samsul; Yulianti, Rahmah; Maksalmina, Maksalmina; Ulfia, Ulfia; Malisi, Syibran
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This research discusses innovative strategies for managing supply risks of plastic waste materials for SMEs and startups in the recycling sector. Stable and high-quality raw material availability is crucial for maintaining production efficiency, profitability, and environmental sustainability. However, challenges such as fluctuating supply volumes, inconsistent waste quality, and low community participation remain major obstacles. Using a conceptual approach, this paper explores three main strategies to mitigate these risks: supply source diversification, supply chain digitalization, and collaboration with external actors. Digitalization through IoT, big data, and blockchain technologies enhances transparency and efficiency in supply management. Meanwhile, partnerships with governments, communities, waste banks, and financial institutions strengthen supply chain sustainability through regulatory, financial, and social innovation support. Additionally, incentive mechanisms such as deposit-refund systems and eco-point reward programs effectively increase community participation in waste collection. The findings indicate that the synergy between technological innovation, multi-sector collaboration, and public policy forms the core foundation for developing a resilient, inclusive, and sustainable plastic waste supply chain.
Model Rekayasa Sistem Pembiayaan Industri Alternatif dalam Mendukung Industri Pengolahan Limbah Plastik Yana, Syaifuddin; Rusmina, Cut; Maksalmina, Maksalmina; Maryam, Maryam; Nengsih, Rita; Nurfiqi, Aisyah
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Plastic waste processing businesses play a strategic role in supporting environmental sustainability and the development of a circular economy. However, business development in this sector continues to face limited access to financing due to enterprise characteristics dominated by MSMEs, relatively high risk levels, and the mismatch of conventional financing schemes. This article aims to examine and synthesize the literature related to the development of alternative financing systems for plastic waste processing businesses. The method employed is a literature review using a descriptive–analytical approach to various relevant scientific sources and policy reports. The findings indicate that alternative financing mechanisms such as microfinance and cooperatives, partnership-based financing, Islamic financing, crowdfunding, impact investing, as well as government and CSR support have significant potential to improve access to financing for plastic waste processing enterprises. This article also proposes a conceptual model for the development of an integrated alternative financing system involving business actors, financial institutions, markets, and regulatory support. These findings provide important implications for the formulation of green financing policies and the advancement of future research on environmentally oriented business financing
Penguatan Daya Saing Industri Gerabah melalui Model Keuangan Terintegrasi , Nelly; , Sufitrayati; Bakri, Muhammad; Amni, Chairul; Ikhbar, Samsul; Husna, Asmaul
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The pottery industry, as part of the craft subsector within the creative economy, plays an important role in strengthening MSMEs and local economic development, yet it continues to face significant competitiveness challenges. These challenges are not only related to technological limitations and market access, but also to weak financial management practices that remain fragmented and short-term oriented. This review article aims to systematically examine the role of integrated financial models in enhancing the competitiveness of the pottery industry. Using a literature review approach, this study synthesizes prior research on MSME financial management, cost efficiency, cash flow, investment planning, and business performance. The findings indicate that integrating financing, cost control, cash flow management, and investment planning contributes positively to operational efficiency, product quality, market access, and business sustainability. This article contributes theoretically by positioning finance as a strategic system rather than a purely administrative function in strengthening pottery industry competitiveness. Practical and policy implications highlight the importance of financial literacy, inclusive financing support, and financial digitalization to facilitate the effective and sustainable implementation of integrated financial models.
Pemanfaatan Bottom Ash PLTU sebagai Media Filter untuk Mengolah Limbah Tahu Yunita, Irda; Teuku Muhammad Zulfikar; Fiki Angga Mulia; Elvitriana; Bahagia
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Liquid waste from the tofu industry is a significant source of water pollution, containing high levels of organic materials that can harm aquatic ecosystems. On the other hand, Coal-Fired Power Plants (CFPP) produce a large amount of bottom ash, which is still underutilized. This study aims to explore the potential of bottom ash from the Nagan Raya CFPP in Aceh as an economical and environmentally friendly alternative filter medium for treating tofu wastewater. The main focus is to evaluate the effectiveness of bottom ash in reducing Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), and neutralizing pH. The method employed is a quantitative experimental approach using a layered filtration system consisting of gravel, coir, sand, and bottom ash as the adsorbent. The contact time between the wastewater and the filter medium was varied for 2, 4, and 6 hours, with a control filter without bottom ash. Initial samples showed TSS levels of 560 mg/L and a pH of 3.8, which are far below the quality standards. The results indicate that the use of bottom ash significantly improves wastewater quality, with the highest TSS removal efficiency reaching 82.85% at a contact time of 6 hours, reducing TSS to 96 mg/L. The highest COD reduction occurred at a contact time of 2 hours, with an efficiency of 24.8%. Bottom ash was also effective in neutralizing the wastewater, raising the pH to a neutral range (6.2 – 7.0). These findings suggest that bottom ash from CFPP has great potential as a filter medium for tofu wastewater.
Optimasi Sistem Produksi dan Manajemen Rantai Pasok dalam Mengelola Risiko Pasar pada Industri Daur Ulang Plastik , Mawardi; Syamsuddin, Nurfiani; , Rahmad; Usman, Bukhari; Syamsuddin, Syafrina; Dida Nurida, Putri
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study examines the integration of production system optimization, supply chain management, and market risk management in the plastic recycling industry within a circular economy context. Using a qualitative systematic literature review approach covering publications from 2017 to 2025, this study synthesizes findings from Scopus, Web of Science, OECD, and World Bank sources. The results indicate that production optimization strategies such as lean manufacturing, process simplification, energy efficiency, and capacity planning enhance cost efficiency and operational stability. At the same time, effective supply chain management, including reverse logistics coordination, supplier diversification, and inventory control, strengthens supply chain resilience and reduces disruption risks. Cost efficiency and supply stability increase price flexibility, which mitigates market risk exposure and supports profitability stability. The study proposes an integrative conceptual framework linking production optimization, supply chain coordination, market risk mitigation, and profitability resilience. The findings contribute to bridging operations management and risk governance literature while offering practical insights for improving competitiveness and sustainability in the plastic recycling sector.

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