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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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Peningkatan Senyawa Anti Bacterial Geraniol pada Citronella Oil Sebagai Bahan Baku Pembuatan Perfume Anti-Bacterial Suryani; Fitria; Nurul F; Syafruddin; Yuhanis Y
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Research is underway to increase the geraniol content of citronella oil by vacuum distillation. Geraniol is a fragrance compound approved by IFRA (International Fragrance Association) and can be used in the formulation of antibacterial perfumes. However, the levels of geraniol in citronella oil are still relatively low. The processing of fragrant citronella oil can be improved by increasing the geraniol content through vacuum distillation. This can be achieved by varying the pressure between 1 and 8 mbar and operating times between 20 and 60 minutes to the final boiling point. The resulting samples were analysed by GC-MS, FT-IR, refractive index and bacterial testing. The results indicate that lower pressure levels can increase geraniol levels. The geraniol content increased by a maximum of 80.11% at a pressure of 1 mbar during the Final Boiling Point operation, with a refractive index of 1.501. FTIR showed an intense broad peak in the range of 2200-3200 cm-1, particularly at 3086.98cm-1, indicating the presence of the OH hydroxyl polymer group in geraniol. The study successfully increased the geraniol content from 20.32% to 80.11%. The results of the antibacterial perfume test showed greater antibacterial activity against Staphylococcus Aerus strains compared to E. coli. The inhibition diameter was 10.13 mm after 48 hours.
Tinjauan Kuat Tarik Belah Beton Menggunakan Bahan Substitusi Serat Roving dan Cangkang Tiram Bunyamin; Heru Pramanda; Munirul Hady; Febrina Dian Kurniasari; Muhammad Anshar
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Additives such as fibres have been widely used to increase the tensile strength of concrete. Previous research has shown that the tensile strength of concrete may also be increased by replacing 10% of the cement with waste materials, such as oyster shell ash. In this research, waste material in the form of oyster shells was combined with roving fibre (gypsum fibre). The objective in this research is to ensure the split tensile strength of concrete using 10% oyster shell waste combined with 5%, 10% and 15% gypsum fibre in cement. The oyster shell waste was sourced from Krueng Neng, Aceh Besar. Gypsum fibre was sourced from a building materials shop in Banda Aceh City. This research used the method of ACI 211.1-91 or American Concrete Institute and ASTM or American Society for Testing and Materials, with cylindrical test specimens (15 cm x 30 cm). The test results showed that the normal splitting tensile strength of concrete was 2.95 MPa. Meanwhile, the splitting tensile strengths of concrete with gypsum fibre and oyster shell ashsubstitution were 3.10 MPa, 3.49 MPa and 3.51 MPa. The combination of oyster shell ash and gypsum fibre in concrete can significantly increase the splitting tensile strength of concrete.
Evaluasi Kinerja Pengelolaan Sampah Menurut SNI 3242 : 2008 di TPS 3R Gunung Anyar, TPS 3R Karang Pilang dan TPS 3R Kedung Cowek Sarah Aulia; Tuhu Agung Rachmanto
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Due to the increasing amount of waste, the city of Surabaya has started to build several 3R TPS. However, an evaluation is still needed to assess the shortcomings of the three 3R TPS. This is to ensure that the quality improvement of the 3R TPS can be effectively implemented. The evaluation was based on 5 aspects in SNI 3242: 2008. The data collection methods used were interviews, observations and questionnaires. Based on interviews and observations, three of them have not fulfilled the institutional aspects, organisational structure sub-aspects and operational technical aspects, the processing sub-aspects have not been fulfilled by Kedung Cowek 3R TPS. Based on the questionnaire, three of them fulfil all aspects and sub-aspects. Based on the observations, TPS 3R Gunung Anyar had a production of 0.45 kg/person/day, TPS 3R Karang Pilang 0.48 kg/person/day and TPS 3R Kedung Cowek 0.57 kg/person/day. The results of the composition calculation for TPS 3R Gunung Anyar were 42.34% organic, 0.16% paper, 5.59% plastic, 4.61% other materials, 47.30% residual. For TPS 3R Karang Pilang, 53.10% organic, 2.45% paper, 4.60% plastic, 2.95% other material, 36.90% residual. Then TPS 3R Kedung Cowek 34.63% organic, 3.94% paper, 10.27% plastic, 2.87% other material, 48.29% residual.
Analisis Radius Persebaran (Dispersi) Karbon Monoksida Di Jalan Raya Darmo Kota Surabaya Ananda Iqbal Ibrahim; Firra Rosariawari
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

In this research, the concentration of carbon monoxide (CO) on Jalan Raya Darmo, Surabaya City, which is one of the main highways with heavy traffic, was measured and analyzed. The main aim of this research is to measure CO concentrations and create practical plans to reduce pollution levels. The process consists of collecting information about CO concentration, wind speed, temperature, and air humidity using instruments including hygrometers, anemometers, and CO analyzers. The CO distribution was modeled using the AERMOD dispersion model according to the collected data and the associated meteorological conditions. The research findings revealed that CO concentrations varied significantly depending on traffic volume and weather, with the highest figure being 13,704 μg/m3 on Friday afternoon and the lowest figure being 5,224 μg/m3 on Monday morning. A strong CO distribution pattern was found towards the North, Northeast, West and Southwest using AERMOD for distribution analysis. The research conclusion proves that the amount of CO on Jalan Raya Darmo is significantly influenced by weather and traffic density. It is recommended that risk management techniques be used, such as routine motor vehicle maintenance, implementation of odd-even programs, and regular air quality audits to manage and reduce air pollution.
Analisis Perencanaan Persediaan Bahan Baku Biji Plastik LDPE (Studi Kasus : CV. Jaya Perkasa Abadi) Christian Steve Jonathan Mundung; Siti Mundari
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

CV. Jaya Perkasa Abadi is a company that specialises in the production of cast buckets using LDPE (Low Density Polyethylene) pellets as raw material. CV. Jaya Perkasa Abadi is located at Pergudangan Jaya Park Blok C No. 7 Dusun Kapas Melati, Jabaran Village, BalongBendo District, Sidoarjo Regency. This company faces challenges in managing the supply of LDPE (Low Density Polyethylene) seed raw materials, which are subject to fluctuations in demand. The fluctuation in demand leads to excess and shortage of plastic pellet raw material stock. To overcome this problem, it is necessary to analyse the planning and management of the supply of LDPE (Low Density Polyethylene) seed raw materials using the probabilistic calculation method of the P back order model. This method involves iteration to select the best solution resulting in the minimum total inventory cost. Based on the calculation results using the P back order model probabilistic calculation method. The most optimal results were obtained with a total cost of Rp 5,693,109,330 by placing orders T_0 every 6 days or 0.018 years, the expected maximum inventory is 14.441 kg and the service level is 99.99%.
Analisa Perhitungan Pathloss Propagasi Gelombang Radio Outdoor Menggunakan Model Hata dan Model Cost 231 Pada Jaringan 3G Telkomsel Lhokseumawe Amir D; Naziruddin; Jamaluddin; Ariefin; Halim Saini
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The problem that arises in wireless communications is how to predict the transmission channel attenuation between Tx transmitters and Rx receivers that have different channel characteristics. This research explains the results of comparing the Hata empirical model with the Cost 231 model. The empirical model is a prediction model for radio wave attenuation used by engineers in the field without the use of experimental equipment. The aim of this research is to determine the accuracy of the calculation results in the two models. Three locations were used as research samples, namely Darussalam Road, Samudera Baru Road and Gudang Baru Road. The third locations have different distances and BTS. The standard deviation shows the amount of deviation from the average distribution of the predicted data group. Based on the prediction results at the three locations, the Cost 231 model produces larger predicted pathloss calculations compared to the Hata model, the average value of the pathloss prediction of the Cost 231 model is 260.47 dB and the Hata model is 196.46 dB, the difference between the two calculation results is 64.01. The empirical Cost 231 model gives a standard deviation of the mean distribution of 13.59, while the Hata model gives a standard deviation of 0.56 of the mean distribution of the calculated values.
Analisis Efisiensi Hidrogen Peroksida Sebagai Bahan Tambahan Dalam Aerasi Untuk Mengurangi Pertumbuhan Filamentous Pada Air Limbah Oris Hatpa Aditya Azhar; Naniek Ratni Juliardi A.R
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Overgrowth, also known as filamentous bacteria, is the abnormal growth of certain types of bacteria, such as Escherichia coli. The overgrowth of filamentous bacteria in activated sludge wastewater treatment plants has caused serious operational problems over the years. In addition, foaming problems caused by some filamentous bacteria can be a serious problem in all types of plants. The objectives of this study are to analyse the effective dose of hydrogen peroxide in aeration to suppress the growth of filamentous bacteria, to analyse the optimum length of time in which hydrogen peroxide is used in aeration to suppress the growth of filamentous bacteria, and to analyse the effect of the addition of hydrogen peroxide in aeration to suppress the growth of filamentous bacteria. The results of the study for the dose of hydrogen peroxide which is an effective dose is 3 ppm, because at a dose of 3 ppm can reduce MLSS levels by 59%, MLVSS by 64%, COD by 64% and BOD by 54%. The optimum period is 6 days with results of MLSS = 1764 mg/L, MLVSS = 910 mg/L, COD = 187 mg/L, BOD = 105 mg/L.
Efektifitas Pengolahan Kombinasi Elektrokoagulasi-Filtrasi Dalam Menyisihkan TSS dan COD pada Air Limbah Kawasan Industri Felano Elga Bahctiar; Mohamad Mirwan
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Rapid industrial development in Indonesia has led to the establishment of numerous industrial zones, raising concerns about environmental pollution due to high levels of TSS and COD. Electrocoagulation is shownto be effective in removing TSS and COD by generating flocs through an electrochemical process, although these flocs can still pass through sedimentation processes. Filtration has been identified as a method to maximise the results of electrocoagulation. The aim of this research is to investigate the effect of adding NaCl salt to electrocoagulation treatment under flow system conditions and to evaluate the effectiveness of combining electrocoagulation and filtration under flow system conditions in removing TSS and COD from wastewater. Industrial wastewater was fed into an electrocoagulation reactor at a current intensity of 5 A and then continuously fed into filtration at a rate of 0.2 L/min. Aluminium electrodes and filtration media, namely quartz sand and activated carbon, are used. Research variables include NaCl salt addition (0; 0.2; 0.5) gram/L and sampling duration (80, 100, 120, 140) minutes. The results show that the addition of 0.5 g/l NaCl salt achieves a high TSS removal of 80.67% and COD removal of 62.04% at a sampling time of 100 minutes. The combination of electrocoagulation and filtration successfully removed 90.22% of TSS and 71.68% of COD.
Evaluasi Efektivitas Kinerja Instalasi Pengolahan Air Limbah Terhadap Effluent Limbah Cair Industri PT X Elvina Rosita Anggraini; Aussie Amalia
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT X's office and courier activities generate domestic wastewater on a daily basis. The activity comes from domestic activities and support activities such as vehicle washing, maintenance of equipment utilities, mopping and equipment washing. Wastewater has a negative impact on the environment and society if not properly managed. This research was conducted on the wastewater of PT X in March 2023 and the parameters to be tested were at the inlet and outlet points of the WWTP. The aim of this study is to determine the effect of the effluent treatment efficiency (%) on the ammonia and total coliform levels at the inlet and outlet of the PT X WWTP, which have exceeded the quality standard threshold. The methodology used is a quantitative descriptive method, namely by attaching laboratory test results in the form of numbers and using the Soeparman and Suparmin effectiveness formula. The results of calculating the effectiveness of reducing ammonia levels by 0% with ineffective information and the results of calculating the effectiveness of reducing total coliform levels by 0.98% with ineffective information. So the result of this study is that the ammonia levels at the inlet and outlet and the total coliform levels at the inlet of the effluent in the WWTP did not meet the required quality standards, which proves that the WWTP treatment system at PT X was not operating optimally.
Microbial Hyaluronic Acid Production: A Comprehensive Review of Strategies, Challenges and Sustainable Approaches Azwar; Mukhlishien; Abu Bakar; Hisbullah; T.M. Mukhriza
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Medical-grade hyaluronic acid (HA), typically extracted from animal sources or produced by microbial fermentation, offers a wide range of benefits, including wound healing and joint pain relief. However, current methods of extraction from animal tissues, such as eye corneas, umbilical cords and rooster combs, are limited in terms of future raw material availability. Microbial HA production offers several advantages over animal extraction: increased reproducibility and scalability, shorter production times, and yield optimisation through genetic engineering and mutations. This review provides a comprehensive literature survey on microbial HA production, including a comparative analysis of production methods, key challenges and future prospects. Key challenges such as fermentation optimisation, HA purification and contamination are highlighted along with potential solutions. Recent advances and applications of HA in various fields are analysed to understand future opportunities and growth potential. Techno-economic analyses highlight the importance of balancing production costs with desired HA properties. This review aims to provide valuable insights for the development of efficient, sustainable and economical microbial HA production methods and to drive progress in the field. Continued research and development efforts focused on improving fermentation efficiency, downstream processing techniques and host strain engineering are essential to maintain cost effectiveness and scalability in the face of an ever-growing HA market.

Page 17 of 97 | Total Record : 964

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