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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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Postal Service Coverage Mapping For Government Performance Evaluation Sumarno; Ira Indrarini
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The Government of Indonesia aims to provide postal services to 63% of sub-districts, with a target of 74% by 2024. This research aims to map the extent of postal service coverage in Indonesia. It is crucial to map postal service coverage in order to evaluate service performance using the network analysis - service area analysis method. The results of the study show that the postal service has not yet achieved the set coverage target in the three measured radii. Although there has been some improvement at a larger radius, a significant number of sub-districts still lack postal service coverage. At a radius of 2.5 km, only 66% of sub-districts have access to postal services, rising to 71% at a radius of 5 km and reaching 79% at a radius of 10 km. The Java region is the best performer, with only 211 subdistricts or 10% of the total subdistricts lacking postal services. In Papua, on the other hand, only 10% of sub-districts are covered, leaving about 90% without access to postal services. These study results could help inform decisions on target achievement and expansion of postal services to best meet performance targets by 2024
Rancang Bangun Mesin Pemisah Kerupuk Mawar Guna Meningkatkan Output Pada Proses Pemisahan Kerupuk Muhammad Naufal Ramadani; Erni Puspanantasari Putri
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Mr Rizal's MSME is located in Jerukgamping Village, Krian Sub-District, Sidoarjo Regency, East Java, processing the production of rose crackers from raw goods to finished products takes a maximum of 1 day and a maximum of 2 days. This is because there is a drying process that still relies on the sun's heat. The separation process Crackers that are done manually result in the resulting output not being optimal because the process takes quite a long time so it cannot be finished on the same day and must be continued the next morning. With the problems that occur in Mr. Rizal's cracker MSMEs, the researcher provides a solution to speed up the process of separating crackers that are still stuck to each other and only requires 1 worker. The solution used for the problems that exist in Mr. Rızal's rose cracker MSMEs is to carry out anthropometric and percentile calculations. which is used to determine the dimensions of the rose cracker separating machine. The cracker separating machine is designed using dimensions from anthropometry and the 50th percentile of workers so that it can be seen that the height of the machine frame is 103.5 cm, the diameter of the cracker separating tube is 67.25 cm, the height of the cracker exit path is 92.9 cm after it is done. In the experiment there was a comparison of the output of crackers that had been separated. The output before design was 113.5 kg, requiring 200 minutes with an output per minute of 0.6 kg. Meanwhile, the output after design was 150 kg, requiring 60 minutes with an output per minute of 2.5 kg.
Synthesis and Application of ZnO/SiO2 Composite for Methylene Blue Degradation by Photocatalyst Process and Its Kinetics Sunardi; Sumardiyono; Muhamad Ariyanto Adi Saputro; Soebiyanto
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Methylene blue is considered a persistent organic pollutant due to the presence of a benzene group that resists degradation, making it difficult to break down. One source of SiO2 is volcanic ash from volcanic eruptions, which accounts for more than 50% of the total mixture of compounds. The abundant SiO2 in volcanic ash can be utilised and converted into silica gel by forming potassium silicate through the chemical interaction between the SiO2 present in volcanic ash and potassium hydroxide. The ZnO/SiO2 composite has been used as an adsorbent to degrade methylene blue artificial dye. This study aims to determine the composition that gives maximum results in MB dye degradation. ZnO/SiO2 composite with volume ratio of 1:1, 1:2, 1:3. In this study, the dye degradation under sunlight and UV light exposure was investigated and the effect of various factors such as mass, time, concentration and pH to achieve the highest possible degradation of MB dye was also studied. The results showed that the most effective reduction in MB dye concentration occurred when using a ZnO/SiO2 composite with a 1:3 ratio, using 100 mg of adsorbent, subjecting it to UV irradiation for 60 minutes, and working with a dye concentration of 10 g/l at a relatively neutral pH of 6. The dye degradation efficiency obtained under these conditions was 97.63%
Usulan Perancangan Ulang Tata Letak Fasilitas Untuk Meningkatkan Efisiensi Pada Area Produksi (Studi Kasus: PT. XYZ) Bima Maulana; Siti Mundari
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT. XYZ is a company operating in the printing sector. The main function of the company is to print various official documents such as diplomas, permits and others. The company is also involved in the publication of books and other public prints. The problem here is the layout of the production facility, which does not take into account the proximity between the departments of the workplace, resulting in distant material movements as well as increased material handling costs. The aim of this research is to redesign the new layout of the production facility to improve material handling efficiency and reduce transport costs. The method used in this design is Systematic Layout Planning, which analyses the degree of proximity between departments using Activity Relationship Chart and Activity Relationship Diagram techniques to describe the departmental layout relative to each other. The results obtained in this research were to reduce the material transportation distance by 1,391,409 cm/month or equivalent of 32.88%, and to reduce the transportation time by 10,013.82 seconds/month or equivalent of 34.85%, as well as to reduce the material handling cost by Rp. 142,247/month or equivalent of 32.57%.
Identifikasi Tempat Penyimpanan Sementara Limbah B3 Industri Penggilingan Baja Sidoarjo Rr. Maulidya Permana; Novirina Hendrasarie
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Hazardous (B3) waste can have a negative impact on the environment. If B3 waste is not disposed of directly into the environment or transported by a third party, it may affect the health of the surrounding community and other living organisms. Furthermore, B3 waste has different properties, sources and characteristics from waste in general, being unstable, reactive, explosive, flammable and toxic. The main activities of PT. X's main activities are steel production, which is supported by sophisticated production equipment, machinery and human resources, but the storage area is from production, office and maintenance activities. The TPS criteria used by PT. X to determine the suitability of B3 waste with TPS that refers to the regulations and with the aim of this activity is to evaluate the temporary storage of B3 waste at PT. X.
Pemanfaatan Gas Metana Sebagai Sumber Energi di TPA Winongo Kota Madiun Era Dinisiadela Dhalia; Raden Kokoh Haryo Putro
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The problem of waste, which is getting worse almost every year, is an aspect of special interest in several countries in the world, including Indonesia. The increasing population in a country is the most instrumental aspect in increasing the volume of waste as well as the need for final processing sites or known as (TPA) in the urban area. Winongo Landfill, located in Manguharjo District, Madiun City, is the site to be studied. In Winongo Landfill Madiun City, a controlled landfill is used with a waste system that is filled with soil after the waste looks full, causing more methane gas. This research was conducted by using and calculating the amount of methane gas produced based on the composition and amount of waste expected to enter the Winongo landfill in 2024. The methane gas produced from organic waste ranges from 13,574.812 kg CH4 to 15,190.861 kg CH4. It is therefore necessary to make the best use of energy sources from the methane gas produced so that it benefits the surrounding community and does not pollute the environment.
Analisis Keterlambatan Pengiriman Unit Menggunakan Metode Six Sigma (Studi Kasus Pada PT XYZ) Duma Joanna Rotua Simanjuntak; Anggoro Prasetyo Utomo
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT. XYZ is a network providing sales, maintenance, repair and spare parts for Toyota, which is fully owned by PT. Astra International Tbk. The main problem PT. XYZ is delivery delays. In 2023, out of 11,208 deliveries, 2,098 units were delayed, resulting in a delay rate of 18.72%. According to PT. XYZ, delays are acceptable if they are below 15%; above that, they are unacceptable. PT. XYZ needs to analyse the factors causing these delays using the Six Sigma method with the DMAIC approach. The aim is to identify the causes of delays, determine the Six Sigma level and propose improvements. The research identified three main issues: pre-delivery inspection failures with 83.76% due to external damage; administrative process obstacles with 90.05% due to vehicle registration issues; and inbound stock overload with 100% due to PDC overload. The average sigma level is 3.27 σ, rounded to 3 σ. The main causes are employee negligence and contamination during storage at the PDC. Five improvement proposals are being implemented: mandatory K3 and SIO certification for operators, SOPs for unit storage on trucks and at the PDC, use of full-cover unit protection and use of triple-layer protective material. By implementing these solutions, the company can address the issues that cause delivery delays.
Analisis Risiko Lingkungan, Sosial Ekonomi, dan Kesehatan Akibat Pelepasan Polusi Termal Air Bahang PLTU Paiton Rohmah Iftitah Sa’idatul Izzah; Harmin Sulistyaning Titah; Shade Rahmawati
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Paiton Power Station uses surface water for the cooling system. The seawater flowing into the heat exchanger system is returned to the water body and has higher water temperature characteristics than the natural temperature of seawater. There is a recorded change in the temperature of the waters around the Paiton PLTU due to the discharge of hot water at the outlet water discharge reaching 6.50C. The impact of hot water discharge on aquatic ecosystems has become an important issue in marine and environmental protection. The assessment of environmental risks caused by hot water was carried out using a qualitative method based on monitoring data from PLTU Paiton. The aspects assessed include ecological, socio- economic and health aspects. The identification of risks due to the release of hot water resulted in 15 risks. Based on the risk level assessment, 3 low risks, 1 medium risk, 5 high risks and 6 very high risks were obtained. In terms of risk acceptability, there are 2 unacceptable risks associated with increased water temperature. The mitigation measures that need to be taken are a reassessment of the licensing of the temperature limit of the hot water that can be discharged into the waters.
Efektivitas Proses Aerasi dan Penggunaan Adsorben Cangkang Telur Bebek & Kepiting dalam Penurunan Fe, Mn, TDS, TOC Pada Air Tanah Himmatul Aliyah Rosydi; Munawar Ali; Muhammad Abdus Salam Jawwad
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The parameters of Fe, Mn, TDS and TOC contained in the groundwater around the coast of Gresik Regency can cause unpleasant odours when exposed to air, yellow stains on clothes and health problems for people who consume groundwater. The process of aeration and adsorption treatment can be an alternative to reduce the level of pollutants in groundwater by using crab shells and duck egg shells as adsorbents. The study was conducted by comparing 2 treatment processes, the aeration treatment process using variations in aeration time of 15 minutes, 30 minutes and 45 minutes and the adsorption treatment process using variations in the type of duck and crab eggshell adsorbents. The adsorption process also uses variations in sampling time of 20 minutes, 40 minutes and 60 minutes. In the aeration process, the maximum aeration time for removal of Fe, Mn, TDS and TOC occurs at an aeration time of 45 minutes. The percentage allowance for Fe was 91.4%. The percentage allowance for Mn was 28.6%. The percentage of TDS release was 68.2%. The percentage of TOC addition is 20.8%. In the adsorption process, the maximum samplingtime is 40 minutes. The percentage of Fe removal using duck and crab eggshell adsorbents was 97.8% and 99.2%, Mn was 75.7% and 82.7%, TDS was 84.5% and 94.1%, TOC was 74.6% and 81%. The percentage of adsorbent increases as the stirring time increases, allowing the adsorption process to run properly and optimally.
Analisis Tata Ruang Pada Kawasan Bergambut Di Kecamatan Dolok Sanggul Kabupaten Humbang Hasundutan Edwar Darmansyah Pohan; Erwin Nyak; Achmad Siddik Thoha
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Peatland conversion has become a serious issue in recent years. The dynamic between peatland protection and limited space for urban development is a strategic issue in spatial planning. This research aims to evaluate the spatial pattern planning of peatland areas in the 2018 Regional Spatial Plan of Humbang Hasundutan District. The focus of this research is a peatland area of 666.77 hectares. The method used in this research is descriptive qualitative with a spatial data exploration approach using ArGIS 10.8 application. The results show that the spatial pattern plan of peatland in 2018 has a mismatch in spatial use, non-peatland reaches 357.06 hectares (53.55%), most of which is used as fields/crops (39.10%) and settlements (3.04%). The extent of land rights reaches 118.47 hectares (17.77%), while land without land rights is dominated by swamp land use (32.96 hectares or 41.51%). Cultivated land has the largest share (62.72%) as a potential cultivation function. Improvements to the spatial pattern plan for peatlands have decreased in area by -295.84 hectares (-44.37%), which needs to be considered in the future revision of the Humbang Hasundutan District Spatial Plan, including the regulation of general zoning provisions.

Page 20 of 97 | Total Record : 964

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