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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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Penentuan Prioritas Penanganan Genangan di Kecamatan Lembursitu, Kota Sukabumi Bagya Trirahmani, Anggia; Eka Wardhani; Didin Agustian Permadi; Etih Hartati
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Lembursitu Subdistrict is one of the areas in Sukabumi City that often experiences flooding, especially during the high-intensity rainy season. This study aims to determine the priority of flood management in six affected locations spread across four villages. Priority assessment was carried out using a weighting method based on six parameters listed in the Minister of Public Works Regulation No. 12 of 2014, namely flood height, flood area, flood duration, flood frequency, economic losses, social and government facility disruptions, transportation losses and disruptions, housing losses, and private property losses. The research data was obtained through field surveys, community interviews, and secondary data from relevant agencies in Sukabumi City. The weighting results showed that the location with the highest priority for handling was L6 (Jl Raya Palabuhan II) with a score of 297.5, followed by L5 (Jl Merdeka) and L1 (Jl Merdeka). These three locations have a major impact on social, economic, transportation, and public service facility activities. These findings provide a basis for local governments to determine more effective flood management strategies, particularly through increasing drainage capacity, channel normalization, and the implementation of a sustainable eco-drainage-based flood control system.
Variasi Konsentrasi Air Limbah Cucian Laundry dalam Menentukan Range Finding Test Hanarisanty, Lina; Roselyn Indah Kurniati; Arini Wulan Sari; Ferdy Ashari Syawal
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Laundry wastewater contains phosphates, detergents and bleaching agents which are harmful to the environment if not treated first. Phytoremediation is an environmentally friendly technology that uses plants to treat wastewater, including laundry wastewater. One such plant is Eichhornia crassipes, also known as water hyacinth. Prior to phytoremediation, acclimatisation and Range Finding Tests (RFTs) were conducted to determine the tolerance limits of the water hyacinth to laundry wastewater concentrations. Acclimatisation took place over 7 days, during which time RFT tests were conducted with wastewater concentration variations of 0%, 30%, 50%, 70% and 100%. Additionally, wet and dry weight measurements were carried out after the RFT tests. During acclimatisation, the water hyacinth plants thrived in the fresh conditions, producing new shoots and fibrous roots. The RFT tests showed that the optimal wastewater concentration was 30 mg/L, as evidenced by green leaves and healthy roots. The greatest decreases in wet weight of the roots and leaves (amounting to 29.99 g and 38.95 g respectively) occurred at a concentration of 0 mg/L. The greatest decrease in wet weight of the stems (76 g) occurred at a concentration of 50 mg/L. Wet and dry weight measurements were conducted to determine the absorbed water content. Therefore, water hyacinth plants can serve as phytoremediators in further liquid waste treatment processes.
Evaluasi Proses Pengelolaan, Pengurangan, dan Pemanfaatan Limbah B3 pada Industri Amonia PT Kaltim Parna Industri Sihombing, Pretty Sartika; Cundaningsih, Nurvita
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 evaluate the performance of hazardous and toxic (B3) waste management, reduction, and utilization at PT Kaltim Parna Industri, an ammonia-producing industry, in relation to applicable regulatory requirements. The evaluation focuses on eight types of B3 waste generated in 2024 and covers waste identification and balance, packaging, hazard communication through symbols and labels, the design and facilities of the temporary storage facility (TPS), storage practices, and waste reduction and utilization efforts. A quantitative descriptive approach was applied using a checklist instrument and Guttman-scale scoring to compare existing conditions with the technical criteria stipulated in the regulations. The results indicate very high compliance in technical aspects, with the TPS building and storage system achieving 100% compliance and the implementation of symbols and labels also achieving 100%, while the packaging aspect reached 88.8%; however, minor gaps remain in the consistency of applying symbols and labels to each individual package. These findings suggest that the B3 waste management system at the studied facility is generally effective, yet it still requires strengthening in documentation and the standardization of field practices, and the evaluation framework can be applied to similar industries for periodic performance reviews and for reinforcing environmental management systems.
Implementation of Project Management Learning Using Trello in an Independent Study Program at VINIX Indonesia Alyana Isti Hasnani; Dewi, Sinta
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The Independent Study program is designed to enhance students’ practical competencies through project-based learning aligned with industry needs. This study aims to analyze the implementation of Project Management learning in the Independent Study program conducted by VINIX Indonesia. The learning process emphasizes practical project planning, task organization, scheduling, and monitoring using digital project management tools, particularly Trello. This study employed a descriptive qualitative approach by observing learning activities, project documentation, and personal reflections during the program. The results show that the use of Trello supports effective task management, improves project organization, and enhances students’ understanding of project management concepts. The project-based learning approach also strengthens students’ problem-solving skills, teamwork, and readiness for professional work environments. Therefore, the Independent Study program at VINIX Indonesia can be considered an effective learning model for developing project management competencies in higher education.
Pemanfaatan Air Limbah Domestik Kegiatan Hotel X untuk Penyiraman Ruang Terbuka Hijau Ihlashulamal, Tiyan; Okik Hendriyanto Cahyonugroho
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The tourism sector, particularly hotel operations, generates domestic wastewater in significant quantities concurrent with high consumption of fresh water. This study analyzes the potential utilization of treated wastewater from Hotel X for green open space irrigation and non-potable applications. The research was conducted using secondary data from the Technical Approval Document of Hotel X (2025), employing a descriptive quantitative approach. The fresh water demand was determined to be 79.72 m³/day, with wastewater generation of 62.07 m³/day, and GOS area of 1,792 m². The domestic wastewater of Hotel X comprises 81.5% greywater and 18.4% blackwater, treated through a wastewater treatment plant (WWTP) system consisting of grease trap, equalization tank, aeration tank, clarifier, sludge tank, and chlorination unit. The treated effluent meets the standards stipulated in Government Regulation No. 22 of 2021. Wastewater utilization encompasses green open space irrigation (23.97 m³/day) and toilet/urinal flushing (38.19 m³/day), achieving a utilization efficiency of 99.86%. Results demonstrate that treated wastewater can effectively substitute fresh water for non-potable uses, thereby promoting sustainable water resource management and reducing fresh water dependency in hotel operations.
Evaluasi Kolam Retensi Perumahan Bandung Inten Indah, Kelurahan Derwati, Kecamatan Rancasari, Kota Bandung Selvia, Idza; Eka Wardhani; Iwan Juwana; Kancitra Pharmawati
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 evaluate the performance of the initial retention pond design in the Bandung Inten Housing Complex and to plan for an increase in storage capacity based on the hydrological conditions of the area. The research method refers to the guidelines of the Directorate General of Human Settlements, which include hydrological analysis, determination of runoff discharge, preparation of inflow hydrographs, and calculation of pond storage volume. The evaluation results show that the initial retention pond with a volume 5.400 m3 is not yet capable of accommodating the planned runoff discharge. Based on the calculation results, the required pond volume is 7.509,42 m3 using a pump capacity of 0,03 m3/second, which is capable of reducing the runoff discharge in the Bandung Inten Housing Complex by 81,986%. However, additional alternative control measures are still needed to improve flood control effectiveness.
Penyisihan Nutrien dengan Material Zeolit dan Karbon Aktif dalam Teknologi Sediment Capping Studi Kasus Danau Batur Bali Almalia, Rosalina; Soewondno, Prayatni; Sunaryani, Astried
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Lake Batur is one of the national priority lakes that is experiencing pollution pressure due to anthropogenic activities. Nitrogen in the form of ammonium (NH₄) and phosphorus in the form of orthophosphate (PO₄) at high levels cause eutrophication. One of the technologies used to address eutrophication in Lake Batur is sediment capping technology. Sediment capping involves covering the sediment surface with a capping layer of adsorbent material that must effectively adsorb nutrients, prevent their release back into the water, and remain stable under lake environmental conditions. Therefore, adsorbent materials that are selective, environmentally friendly, and easily obtainable especially in the local context of Lake Batur are required. This study aims to determine the capability of zeolite and activated carbon as capping materials through laboratory experiments. The parameters tested include the adsorption efficiency of zeolite and carbon in removing ammonium and orthophosphate under various conditions such as pH, dosage, and equilibrium isotherms. The results of the study show that both materials have potential as capping materials but zeolite is more recommended for nutrient management in Lake Batur.
Literatur Review : Sintesis Hidroksiapatit Dari Limbah Tulang Sapi Menggunakan Metode Hidrotermal Etih Hartati; Khoirunisa Ameilia Rahmawati; Djaenudin; Herlian Eriska Putra
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Indonesia is one of the countries with high beef consumption and production, resulting in large amounts of bone waste, especially rib bones, every year. This bone waste is generally not optimally utilized and has the potential to cause environmental problems. In fact, cow bones, including ribs, contain a high-value mineral compound called hydroxyapatite (Ca₁₀(PO₄)₆(OH)₂). Hydroxyapatite is an inorganic compound with a crystal structure and composition similar to human bone and tooth tissue, making it a highly potential material in the biomedical field, especially as a raw material for dentures, bone implants, and bone fillers. Through environmentally friendly technological approaches such as the hydrothermal method, bone waste can be processed to extract pure hydroxyapatite. This process involves heat and pressure treatment in a closed device that can remove organic components without damaging the mineral structure. The synthesized hydroxyapatite has a composition and crystal structure similar to human hard tissue, making it highly potential for use as a base material in medical applications, especially for dental prostheses.
Rancang Bangun Prototype Dekanter dengan Sistem Elektrokoagulasi untuk Proses Pemisahan Gliserol dalam Crude Biodiesel Mandalini, Larisa; Stivano, Diva; Nirmala, Dyah; Akbar, Addin
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 examine the effectiveness of an electrocoagulation (EC) system in biodiesel purification using a combination of iron rod and aluminum disk electrodes in a cone-bottom decanter, compared to conventional gravity decantation. The apparatus design includes a 4-liter working volume, 1 cm electrode spacing, and operation at 15 V AC for 1 hour. The results indicate that EC significantly accelerates glycerol separation, requiring only 1 hour compared to gravity decantation, which takes over 24 hours. The glycerol separation efficiency with EC reached 98.49%, higher than that of gravity decantation (97.70%). Biodiesel produced via EC yielded a total glycerol content of 0.19%, meeting the SNI standards (< 0.24%), whereas gravity decantation resulted in 0.29%. Other parameters, such as density (0.86 g/mL), viscosity (5.8 cSt), water content (0.008%), and %FAME (98.36%), also complied with the standards. In conclusion, the electrocoagulation system with a stacked disk electrode configuration is more effective in accelerating separation and improving biodiesel quality.
Optimization of Drying Conditions of Chlorella vulgaris Using Tray Dryer for Biodiesel Feedstock Lidya Elizabeth; Rispiandi; Laily Isna Ramadhani; Dhyna Analyes Trirahayu; Hidayatulloh, Irwan
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Microalgae are one of the primary feedstocks for biodiesel production due to their high lipid content, ranging from 4–77% of dry weight. Chlorella vulgaris is considered a superior species with a lipid content of 5–40% based on dry weight. Drying microalgae into powder form has been developed to improve handling, storage, and application, including in biodiesel production. However, drying remains a major challenge, as inappropriate methods may cause lipid degradation due to high-temperature exposure. This study aims to dry Chlorella vulgaris using a tray dryer and to optimize its operating conditions through analysis of variance based on Response Surface Methodology (RSM). Based on the literature, no previous studies have used a tray dryer for drying Chlorella vulgaris. Optimization was conducted by varying drying temperature (55–75°C) and air velocity (1.5–1.7 m/s) to achieve the highest drying efficiency. The highest efficiency was achieved at 79°C and 1.6 m/s, reaching 99.99% with energy consumption of 603.17 kWh/kg. Meanwhile, RSM analysis showed that the optimum condition was at 75°C and 1.7 m/s, resulting in 99.89% efficiency with energy consumption of 693.97 kWh/kg. Drying at both 75°C and 79°C proved to be efficient and safe in preserving lipid compounds in microalgae.

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