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Muhammad Nizar
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INDONESIA
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 1,051 Documents
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Perbandingan Koagulan Komersial dan Biokoagulan Biji Pepaya Pada Flokulasi Hydrocyclone Terbuka Dalam Menurunkan Total Suspended Solid (TSS) Maulana Rohman Bahari; Aussie Amalia
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Various methods of clean water treatment have been developed to meet the needs of communities, one of which is coagulation-flocculation, an effective process for removing TSS and turbidity. This process involves mixing coagulants to form flocs, followed by aggregation of suspended particles to facilitate sedimentation. Reactor modifications, such as hydrocyclone flocculators, are designed to improve efficiency, although their effectiveness depends on the size and density of the flocs. Chemical coagulants such as alum and PAC are widely used because of their effectiveness, but their residues can be potentially toxic. As an alternative, biocoagulants such as papaya seeds have been developed to provide a safer solution and produce biodegradable residues. A study was carried out to compare the efficacy of alum, PAC and biocoagulants using a hydrocyclone flocculator with test waters representing low, medium and high TSS levels. Samples were taken at 0, 5, 10, 15 and 20 minutes. The results showed that PAC had the highest efficiency with an average of 78.9% for high TSS, 75% for moderate TSS and 70.8% for low TSS.
Pengaruh Filler Nano Precipitated Calcium Carbonate dan Gliserol Terhadap Bioplastik Pati Jagung , Resa Damayanti; Meldi Ramahdani Intan Pertiwi; Titi Susilowati; Caecilia Pujiastuti; Susilowati
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Precipitated calcium carbonate (PCC) with a size of less than 100 nm has been shown to improve the hardness and strength of a material, making it suitable as a filler in the production of bioplastics. Biodegradable plastics are plastics that can be used like conventional plastics, but can be broken down by microorganisms after use, making them environmentally friendly. The aim of this study is to investigate the effect of adding nanoprecipitated calcium carbonate (PCC) filler and glycerol on the mechanical properties and biodegradation of corn starch-based bioplastics, and to produce biodegradable plastic that meets the Indonesian National Standard (SNI). The method used is melt intercalation to produce bioplastics from corn starch with the addition of nano-PCC and glycerol. The best results were obtained with 12% Nano-PCC and 20% glycerol, which gave a tensile strength of 3.54 MPa, 12% Nano-PCC and 50% glycerol, which gave an elongation percentage of 23.7%, and 4% Nano-PCC and 60% glycerol, which gave 100% biodegradation within 30 days. A higher concentration of Nano-PCC filler increases the tensile strength, improves the elongation percentage and reduces the degradation rate of the plastic. A higher concentration of glycerol decreases tensile strength, increases elongation and increases the degradation rate of the plastic.
Pengolahan Air Lindi TPA Jabon Griya Mulyo Sidoarjo dengan Metode Constructed Wetland untuk Menyisihkan Parameter COD Mahendra, Muhammad Bagus Scheva Putra; Amalia, Aussie
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Rapid population growth in Indonesia has led to a significant increase in the volume of waste, which poses a potential threat to the environment. Leachate is a liquid produced when external water infiltrates waste heaps, dissolving both soluble and organic materials through biological decomposition processes. Without proper management, leachate can contaminate water sources and endanger the ecosystem and nearby communities, particularly around the Jabon Landfill (TPA Jabon). One effective method of treating leachate is the use of constructed wetlands, a simple system that uses aquatic plants and microorganisms to reduce pollution. This study evaluates the effectiveness of two aquatic plants, papyrus (Cyperus papyrus) and bulrush (Typha latifolia), in reducing the chemical oxygen demand (COD) of leachate through the constructed wetland system.
Efisiensi Pengolahan Cr(VI) dengan Resin Immobilized Photocatalyst Technology (RIPT) Katalis ZnO Zahrah, Aurelia Asilah; Purnomo, Yayok Suryo; Murti, Restu Hikmah Ayu
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Waste water from the nickel mining process has the potential to contaminate the environment due to the presence of hazardous metals such as chromium (Cr) in the form of Cr(VI) and Cr(III), iron (Fe), nickel (Ni) and other heavy metals. These substances are of great concern because of their toxicity, which can have adverse effects on ecosystems and human health. This study was conducted to investigate the effects of UV-C lamp light intensity, contact time and RIPT-ZnO weight on the removal of hexavalent chromium (Cr(VI)) from nickel wastewater. The method used in this research involved immobilisation of photocatalysts on resin with RIPT concentrations of 5g, 10g and 15g and variations in UV-C lamp light intensity of 8W, 18W and direct sunlight. The contact times tested were 0 minutes, 30 minutes, 60 minutes, 120 minutes and 180 minutes, with the focus of the analysis on the Cr(VI) concentration. The results showed that increasing RIPT dosage resulted in higher Cr(VI) removal percentages. The highest Cr(VI) removal was achieved with a 15 gram RIPT dosage, especially when ZnO was used. The optimum contact time for maximum Cr(VI) removal was 180 minutes, indicating that the longer the wastewater is exposed to RIPT, the higher the removal rate. The study found that the use of ZnO in the RIPT technology achieved the highest Cr(VI) removal efficiency, reaching 96%.
Analisis Timbulan Emisi Karbon Dioksida Area Kampus UPN “Veteran” Jawa Timur Ramadhan, Firza; Purnomo, Yayok Suryo; Jawwad, Muhammad Abdus Salam
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The green space in the UPN Veteran campus area in East Java is a campus effort to control carbon dioxide (CO2) emissions generated by campus activities. Green spaces can absorb and store CO2 and convert it into energy and O2 through photosynthesis. The results showed that the CO2 emissions generated by the use of motorised vehicles, human respiration activities and the use of LPG energy at the research site amounted to 7,317,565.6 kgCO2/year. The total carbon uptake of the study area was 13,422,291 kgCO2/year. From the comparison between the total carbon dioxide (CO2) absorption and the generation of carbon dioxide (CO2) emissions at the research site, it is known that Green Space can absorb or reduce CO2 emissions as a whole.
Assessment of Black Carbon in University: Emphasis on Different Indoor Microenvironment, Infiltration Factor, and Exposure Sholikin, Mohamad; Rosariawari, Firra; Jawwad, Muhammad Abdus Salam
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Black carbon (BC), a harmful air pollutant, poses significant risks to human health. As students spend most of their time indoors and a third in school, the educational environment deserves special attention; however, most previous research has focused on the assessment of the pollutant itself in the classroom. Therefore, this work aims to extend the characterisation of BC in universities by considering different indoor microenvironments, infiltration factors and estimating exposures for healthy children and adults. In this study, BC concentrations were measured in four room types: cafeteria, gym, office room and classroom. The average BC observed in the cafeteria (599 ng m-³), gymnasium (987 ng m-³), office (830 ng m-³) and classroom (548 ng m-³) were. Of these, the gymnasium had the highest mean concentration, consistent with its high indoor/outdoor (I/O) ratio of 1.11, indicating significant indoor sources of BC. Exposure levels correlated directly with BC concentrations, with adults having higher deposition rates compared to children. These results provide insights into the spatial variation of BC in indoor environments, with implications for air quality control and health risk assessment for occupants.
Pemodelan Sebaran Polutan Udara dari Flarestack Menggunakan AERMOD di Onshore Receiving Facilities PT X Mochammad Yordan Royan Futari; Munawar Ali
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 model the dispersion of air emissions (NOₓ and SO₂) from the flarestack at the Onshore Receiving Facilities (ORF) of PT X using AERMOD software. Wind patterns affecting the emission distribution were analysed using WRPLOT View software. The modelling results were verified with ambient air quality measurements to ensure accuracy and reliability. The windrose analysis showed that wind directions shifted between semesters: west-to-east in semester I and east-to-west in semester II of 2023, affecting the dispersion patterns. Isopleth maps showed that NOₓ and SO₂ concentrations remained stable, with maximum concentrations of 0.28 µg/m³ and 0.028 µg/m³, respectively. Concentrations of both pollutants complied with Indonesia's air quality standards (Government Regulation No. 22/2021). However, actual ambient measurements showed higher concentrations due to external sources not included in the model. These results highlight the important role of meteorological factors in emission dispersion and the need for comprehensive pollution control strategies.
Adsorption of Pb(II) Ions Using Residual Extract of Alginate from Sargassum sp. Rusnadi; Wibisono, Eucharistein Gratia; Dhiya Haniifa Putri; Andi Radhiatul Hilmah Alimin
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Lead ion is one of the environment’s main pollutants. Lead ions have carcinogenic and toxic effects and, therefore dangerous to the human body.  This research was conducted to determine the ability of alginate extraction residue from Sargassum sp.’s ability as lead ion adsorbent. The characterization of this adsorbent was done using FTIR (Fourier Transform Infrared) and SEM-EDS (Scanning Electron Microscopy-Energy Dispersive Spectroscopy). The optimization of this adsorbent was carried out toward some parameters, such as pH, adsorbent’s mass, Pb(II)’s initial concentration, and contact time. The result showed that the optimum condition can be reached if the contact between the adsorbent and adsorbate was done using 0,025 grams of adsorbent in 25 ml of pH 5 Pb(II) (200 ppm) solution, using 5 minutes contact time.  The adsorption process follows the Langmuir isotherm model with a maximum capacity of 416,6667 mg.g-1. The result of the kinetics study showed that the adsorption follows a pseudo-second-order kinetics whilst the thermodynamics study showed that the adsorption process is exothermic with the value of ΔHᵒ = -4,51 kJ.mol-1,  and the value of ΔSᵒ = -0,038  kJ.mol-1.K-1.
Pengembangan Sistem Otomatisasi Pengisian APAR: Inovasi Menuju Efisiensi dan Efektivitas Tri Saputra, Surya; Bhima Shakti Arrafat; Supri
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

One of the fire extinguishers commonly used in various places and also utilized in practical training for students in the Aircraft Accident Rescue Program (Diploma Three) is the Portable Fire Extinguisher (APAR). In their learning, students are not only taught how to use APAR but also about its working system, maintenance, and refilling process. A drawback of the current APAR refilling process is the frequent spillage of dry chemical powder (DCP) and inaccurate measurements. The aim of this research is to design an automatic APAR refilling device that can serve as a learning tool for students. The method used is VDI 2221 (Verein Deutscher Ingenieure), a systematic approach for solving problems and optimizing the use of materials and technology. The outcome of this research is the development of a comprehensive APAR refilling device that integrates the removal of old DCP, refilling with new DCP, and nitrogen charging. The test results showed that the process of suctioning DCP powder and filling nitrogen for a 6 kg cylinder takes 7 minutes and 50 seconds. This tool makes the APAR refilling process easier, minimizes DCP spillage, and saves time during the refilling process.
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.

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