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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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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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Strategi Peningkatan Volume Tinja yang Masuk ke Instalasi Pengolahan Lumpur Tinja Menggunakan Metode Regresi Logistik dan Analytical Hierarchy Process Multilevel Fega Belindasari Nasution; Irwan Bagyo Santoso
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study assesses the technical, social, and economic aspects of IPLT with the objective of increasing the volume of fecal matter entering IPLT in Lamongan Regency. The analysis of the existing condition of IPLT, the interviews with stakeholders, and the logistic regression with NCSS identified the main factors influencing the low stool volume. The results demonstrated that land height (Coefficient 3.5318, Odds Ratio 34.18547) and income (Coefficient 0.03151, Odds Ratio 1.03201) had a statistically significant impact on the frequency of fecal suction. The strategic priorities identified through AHP are IPLT capacity building, community education, and effective implementation of retribution. The program is supported by the participation of the community (65.1%), the government (27.9%), and IPLT members (7%) with a sustainable circular economy approach.
Audit Energi Awal Pada Pompa Distribusi Sampangan dan Pompa Transport Kaligarang Perumda Air Minum Tirta Moedal Kota Semarang Ghalib Ghibran Wahab; Ervin Nurhayati
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Perumda Tirta Moedal Drinking Water Semarang City has seven units of water treatment plants (IPA) with a capacity of 2760 litres/second. To distribute the water produced by Perumda Tirta Moedal Drinking Water, Semarang City uses 145 units of water pumps, which causes high energy costs. Based on the Summary Book of BUMD Performance for the Implementation of Drinking Water Supply System (SPAM) in 2023, the energy cost of Perumda Tirta Moedal Drinking Water Semarang City is IDR 392/m3, where the value of this energy cost is higher than the national average. The high cost of energy, especially electricity, currently makes the company's operational burden even heavier if good energy management and efficiency are not carried out. The first step that can be taken is to carry out an energy audit to assess the efficiency of the pump and determine the Specific Energy Consumption (SEC) value. When carrying out an initial energy audit, data relating to flow, pressure and electrical parameters are collected. The samples in this initial energy audit are the Sample Distribution Pump and the Kaligarang Transport Pump which have a pump efficiency value of 42.96% and the Kaligarang Transport Pump which has a pump efficiency value of 54.95%. Based on the pump efficiency value, Perumda Tirta Moedal Drinking Water needs to take steps to improve energy efficiency.
Pengaruh Waktu dan Konsentrasi Enzim A-Amylase dan Glukoamilase pada Hidrolisis Biji Cempedak sebagai Bahan Baku Bioetanol RA Ghina Sayyidah Achva; Jaksen M. Amin; Anerasari Meidinariasty
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Bioethanol is a renewable energy source with great potential for development in Indonesia. Bioethanol is produced from the fermentation of sugar, starch or lignocellulosic biomass. In addition, cempedak seeds also contain sugars such as glucose, fructose and sucrose, which provide fast energy. The aim of this study is to identify the optimal composition by varying the hydrolysis time and adding alpha-amylase and glucoamylase enzymes. In the pre-treatment process, Cempedak seeds are processed and then the hydrolysis process is continued with variations in the addition of α-amylase and glucoamylase enzymes. (0.5%:1.5%:2.5%) (v/v) and then analysed for sugar content. From the results of the analysis, the highest % Brix was 16% at a hydrolysis time of 70 minutes with an enzyme concentration of 2.5%. The lowest water content of 98.93% was obtained at a hydrolysis time of 70 minutes and an enzyme concentration of 2.5%. In addition, the best sugar content results were used as raw material for bioethanol production and the ethanol content was checked. The fermentation process was carried out for 6 days and the ethanol content obtained was 64.95%, based on analysis by GC-MS.
Pemanfaatan Limbah Kulit Nanas Menjadi Bioetanol dengan Variasi Konsentrasi Ragi dan Lama Fermentasi Febri Liani Br Simanjuntak; Muhammad Yerizam; Anerasari Meidinariasty
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Pineapple peel waste can pollute the environment if not properly managed. On the other hand, pineapple peel waste can be used as a raw material for the production of bioethanol. The aim of this study was to evaluate the effect of variations in yeast concentration and the duration of the fermentation process on the bioethanol content of pineapple peel waste. In the fermentation process with variations in yeast concentration of 1.5%, 2% and 4%, the type of yeast used is Saccharomyces cerevisiae, the addition of nutrients in the form of NPK and urea by 0.5% each, as well as variations in the length of fermentation for 4 days, 5 days, 6 days, 7 days and 8 days. This study showed that the bioethanol content obtained was significantly influenced by yeast concentration and fermentation time. The sample with the highest ethanol content was produced with the addition of 4% yeast and fermentation for 5 days, the bioethanol content produced was 59% based on calculations using the standard ethanol curve equation and 57.23% based on analysis using GC-MS.
Analisis Efisiensi Multiple Tray Aerator dalam Penurunan Kadar Fe dan Mn Air Sumur (Studi Kasus: Desa Kureksari, Sidoarjo) Fanesa Fathimah Zahroh; Raden Kokoh Haryo Putro
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Various technologies are currently being introduced with the aim of simplifying access and processes to make life more comfortable for society. In order to improve people's needs, particularly in terms of drinking water, one recommended treatment technology is the multiple tray aerator. Studies of tray levels show that Fe and Mn levels decrease with higher tray levels. However, the diameter of the tray hole was the focus of the authors' research. The tray holes have a diameter of 5 mm and a distance of 6 mm between them (d = 5 mm, x = 6 mm) and the tray holes have a diameter of 7 mm and a distance of 10 mm between them (d = 7 mm, x = 10 mm) as variations. According to the research conducted, a smaller tray hole diameter will result in a high level of efficiency for reducing iron and manganese levels, 17.26% and 30.80% respectively. This means that the tray diameter can influence the efficiency of Fe and Mn reduction.
Potensi Bahaya Pada Area Kerja Pelabuhan Muhammad Fachri Ridwan; Faiz Hamdi; Tivany Edwin
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Port work areas are prone to potential hazards. This study aims to identify hazards and assess risks in the port work area, especially in the operational process of loading and unloading containers using the HIRADC method at five port work area locations in Padang City. The results show that there were 15 medium risk, 13 high risk observed. There is high risk of accidents in liquid bulk, dry bulk and container activity locations such as being crushed by containers, being hit in the container area, dust/noise and sea air pollution due to the process of loading/unloading liquid bulk and dry bulk area. The medium risk levels consist of being hit by lift transport, CO2 gas fumes and being crushed by material transport. To reduce and eliminate potential hazards, risk management is required by identifying and analysing potential hazards, assessing risks and recommending controls, one of which is the Hazard Identification Risk Assessment and Determining Control (HIRADC) method. Recommended controls include preparation of marine pollution control equipment (oil booms), operational maintenance of loading and unloading equipment, installation of signs indicating low to high hazard areas, provision of light fire extinguishers, administrative controls and use of personal protective equipment (PPE).
Pilot Study on Therapeutic System Design for Pressure Ulcer Management: Feasibility and Initial Findings Lovindo Nulova; Husneni Mukhtar; Wahmisari Priharti; Maudina Citra Febriani; Ghibran Herlangga Zahra Rievansa; Fenty Alia
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Pressure ulcers or Decubitus Ulcers are injuries to the skin and underlying tissue due to prolonged pressure and friction that cause heat that damages skin tissue, generally occurring in bedridden patients who have difficulty moving and changing their position. Pressure ulcer treatment relies on conventional methods, with prevention as the primary step. Wound care is often overcome by cleaning the wound and changing the bandage regularly, although this method requires a long time and patience until the wound can gradually improve. Prevention is done by helping to change the patient's sleeping position regularly every few hours. This study aims to create a device that can help accelerate the healing process of pressure ulcers by using light therapy exposed to skin with pressure ulcers. A few variations of experiments were carried out on several mice that were conditioned to have pressure ulcers. Hence, the wound's healing time rate in each mouse with no treatment, treatment with 50% light intensity, and 100% light intensity, respectively, are 7%, 34%, and 82%. This pilot study showed improvement in pressure ulcers on the surface of the mouse skin within seven days, where wound healing was 2 to 3 days faster than without treatment. In conclusion, this study has demonstrated the feasibility of providing a therapeutic healing effect on the skin of mice and can be further developed in the future.
Kinetic Modeling of Methylcyclohexane Dehydrogenation Reaction for Toluene Production in the Polymer Industry Muhammad Fadhillah Ansyari; Fitria Ika Aryanti
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Toluene, also known as methylbenzene, plays an important role in various industries, particularly the polymer industry where it is used as a solvent, an adhesive in resins and an additive in rubber and cosmetic products. However, the current production of toluene in Indonesia is insufficient to meet the growing demand, particularly in the polymer sector, prompting the exploration of alternative production methods. This work investigates the production of toluene through the dehydrogenation of methylcyclohexane (MCH) using a Pt/Al₂O₃ catalyst, a process that also generates hydrogen, contributing to clean energy initiatives. The research focuses on identifying the optimal kinetic model for the dehydrogenation reaction, taking into account reactor design and catalyst performance. Four kinetic models were analysed using Polymath software, with the second model highlighting methylcyclohexane adsorption as the key factor and showing the best agreement with experimental data. The results indicate that toluene production can be improved using a fixed bed reactor and Pt/Al₂O₃ catalyst, with surface reactions as the rate-limiting step, offering promising prospects for meeting the needs of the polymer industry.
Correlation Analysis Of PM10 With Tropospheric Ozone (O3) During Forest And Land Fire Event In Sumatera Ade Ayu Oktaviana; Alvin Pratama; Ikhsan Buyung Arifin; Joni Hermana
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Indonesia has a forest area of ​​120,495,702.96 hectares which is vital for human survival. However, significant forest fires, such as those in 1997/1998 and 2015, have caused widespread damage and impacted neighboring countries. These forest fires contribute to an increase in tropospheric ozone (O3) concentrations which are dangerous for human health. This study aims to evaluate the correlation between PM10 and tropospheric ozone in Sumatra during forest fires, using data from the Bukit Kototabang Global Atmospheric Monitoring Station. The analysis method involves measuring PM10 and O3 concentrations using the BAM1020 and Ozone Analyzer Model 49 I, as well as Pearson correlation and linear regression analysis. Results show that there is a positive correlation (r = 0.53) between PM10 and tropospheric ozone, with PM10 increasing as O3 concentrations increase during extreme conditions. The average monthly concentrations of PM10 and O3 during 2016-2020 were 21.75 µg/m3 and 11.61 ppb respectively, with peak concentrations of PM10 in September and O3 in February. Increases in PM10 during forest fires contribute to increases in ozone precursors and photochemical processes, accelerating the formation of tropospheric ozone.
Kombinasi Koagulasi – Flokulasi dan Filtrasi Menggunakan Bahan Alami Pada Limbah Cair Laundry Untuk Menurunkan Parameter TSS dan Kekeruhan Naufaldy Iqbal Abdillah; Mohamad Mirwan
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The growing population in Indonesia can be used by some people to start a laundry business. Laundry waste has several contents, one of which is Total Suspended Solids (TSS). Coagulation-flocculation is one of the processes that can reduce TSS and turbidity parameters. The coagulation-flocculation process with a stirring speed of 100 rpm and 150 rpm with watermelon seed extract biocoagulant, trembesi seed and commercial aluminium sulphate coagulant for comparison. The next stage of processing is filtration processing using rice husk charcoal, silica sand and gravel. The treatment results are then continued with turbidity measurements and TSS test results. The best treatment results in this coagulation-flocculation combination are turbidity parameters with a percentage removal of 77% watermelon seeds, 70% trembesi seeds and 93% aluminium sulphate. The best test results were obtained for TSS parameters with a percentage removal of 80% watermelon seeds, 69% trembesi seeds and 98% aluminium sulphate. The highest percentage removal in the treatment of washing liquid waste using a combined method of coagulation-flocculation and filtration at a dose of 75 ml/l and a stirring speed of 150 rpm.

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