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INDONESIA
Jurnal Teknologi
Published by Universitas Muhammadiyah Jakarta
ISSN : 20851669     EISSN : 24600288     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering
This journal is a scientific journal to develop knowledge in the field of Engineering & Technology. Editors invite professionals from education and researcher to write about the progress of science in the field of Engineering & Technology. The journal is published 2 (two) times in 1 year.
Arjuna Subject : -
Articles 303 Documents
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PENGARUH PENAMBAHAN MASSA LILIN LEBAH (BEESWAX) SEBAGAI ZAT ANTI AIR PADA PEMBUATAN EDIBLE FILM DARI BERAS MERAH (Oryza Nivara) Syarifuddin Oko; Andri Kurniawan; Galang Ramadhan Persada Alam
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.65-72

Abstract

Edible film is a thin layer for food wrapping that can be made from starch. This study aims to make edible film from brown rice starch that is in accordance with the standards of the Japan Industrial Standard and has the characteristics of being resistant to water and durable as a food wrapper. Edible film in this study was made with the basic ingredients of brown rice starch as much as 10 grams with variations in the addition of beeswax as much as (1 gram, 2 grams, 3 grams, 4 grams and 5 grams). The addition of sorbitol as much as 5 grams, kesum leaf extract as much as 1.4 mL and eating vinegar as much as 10 mL. After obtaining edible film samples, several characteristic tests were carried out including tests of absorption of water, solubility in water, thickness of edible film, rate of water vapor transmission, tensile strength, and elongation. The best characteristics on edible film with the addition of beeswax 5 grams with a water absorption value of 29.15% and a solubility of 64.67% film. With a thickness value of 0.210 mm and a steam transmission rate of 1.85 gr/m2.h which is in accordance with the Japanese Industrial Standard edible film standard. However, the tensile and elongation strength values are not yet in accordance with the Japanese Industrial Standard edible film standards where the tensile strength value is 1.283 mPa and the elongation is 1.21%.
SINTESIS DAN KARAKTERISASI KOMPOSIT TiO2/ZEOLIT SEBAGAI FOTOKATALIS PADA DEGRADASI AMONIA DI DALAM AIR LIMBAH Adhi Setiawan; Chelvin Sugiarto; Novi Eka Mayangsari; Muhamad Ari; Indri Santiasih
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.87-96

Abstract

Ammonia is a wastewater pollutant that can cause oxygen depletion and eutrophication if not treated properly. The Photocatalyst using zeolite-TiO2 was effective method for degrading ammonia compounds in wastewater. This study aimed to analyze the characteristics of the zeolite-TiO2 composite and determine the effect of using the composite in reducing ammonia levels in wastewater. The research were conducted experimentally with a batch process on variations in pH and irradiation time. Data on the decrease in ammonia concentration with time was used to analyze the kinetics of the ammonia degradation reaction. The process of synthesizing zeolite from fly ash using the hydrothermal method. The synthesis of zeolite-TiO2 composites was carried out with a composition ratio of 1:2. Characterization of TiO2/zeolite composites was carried out using SEM-EDX and XRD methods. The results showed that fly ash-TiO2 zeolite composite has a granular morphology, and has an average diameter of 0.257 μm. X-ray diffraction pattern detected peaks in the form of zeolite X and TiO2. The highest ammonia removal efficiency was obtained at pH 11 with an irradiation time of 120 minutes, which was 91.60%. The process of removing ammonia by UV irradiation followed a second-order kinetic model with a k value of 0.1215 (mol.min)-1. The removal of ammonia in dark conditions followed a zero-order kinetic model with a k value of 0.0031 mol.min-1..
SISTEM INFORMASI ASMARA (ASPIRASI MASYARAKAT) DESA SEBAGAI DASAR PERENCANAN PEMBANGUNAN DESA BERBASIS WEB ANDROID DIMASA PANDEMI COVID 19 : STUDI KASUS DESA BOJONGKULON Sokid Sokid; Agust Isa Martinus
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.51-56

Abstract

Information and communication technology (ICT) during the COVID-19 pandemic is very useful in assisting the implementation of the implementation of the Village Government, both in the formulation of Government policies that require input and community aspirations, implementation of development and reporting of activities that are known to the village community in a transparent manner so that there is an evaluation of future policy improvements over the basis for village community participation from various levels of society. Professional, efficient and effective Village Government, open, and responsible in accordance with the mandate of the Village Law Number 6 of 2014 with a policy formulation mechanism as mandated by Minister of Home Affairs 114 of 2014 and PermenDesa PDTT Number 17 of 2019 concerning General Guidelines for Development and Empowerment of Village Communities in general requires input and aspirations of the community which can be done by utilizing information technology as a medium for screening the aspirations of the community and participating in the implementation of the Village Government both directly and virtually so that the principles of implementing e-government can be carried out. In absorbing the aspirations of the Village community, it is necessary to have an information system that is easily accessible by the community as a forum for the aspirations of the Village community, the Village community can input their aspirations and input in writing by inputting their input according to the available menu by attaching supporting evidence in the form of photos and an explanation of the actual conditions in the field, as material for formulating village development plans. In this study, the author will make a prototype of an integrated village community information system where in the information system the community can participate in conveying aspirations as a basis in village development planning so that from the results of participation in development planning, village communities can enjoy information on village development, development good infrastructure for economic activities in the village, such as trading, farming and other activities, the community and the village government together empower the village's economic potential a with community empowerment and community development programs.
OPTIMASI PRODUKSI CRUDE PALM OIL (CPO) DAN INTI SAWIT (KERNEL) MENGGUNAKAN TEKNIK 2 FASE DI PT. LIL Vera Devani; Yulia Aiza
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.117-121

Abstract

PT. LIL is one of the companies engaged in the business of managing palm oil into Crude Palm Oil (CPO) and palm kernel oil or Palm Kernel Oil (PKO). The method used in this research is the Simplex Method which is one of the methods in the Linear Program that helps in solving a problem with more than two variables. The purpose of this study is to determine the optimal profit, type and number of products to be produced and to determine the value of sensitivity to the optimum solution achieved. Based on the results of research conducted, it can be concluded that the optimal benefits obtained by PT. LIL is Rp. 11,038.7 per kg by producing Crude Palm Oil (CPO) as much as 1.0776 kg and kernels as much as 0.9224 kg. If there is a change in the objective function coefficient for the base variable, the gain for the CPO and kernel remains optimal if it is greater than 0. If there is a change in the right side of the boundary, an optimal percentage ofcontent is oil loss CPO1.45% and kernel is 0.24%, moisture CPO 0.25% and 6.36% kernel, dirty 0.05% CPO and 6.7% kernel and FFA (Free Fatty Acid) CPO content 0%.
PRODUCTION CAPACITY PLANNING BASED ON SALES FORECAST USING CUT AND TRY METHOD Hernadewita Hernadewita; Hendra Hendra; Dafid Mega Saputra; D Daruki; Singgih Juniawan; Uti Roysen
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.81-86

Abstract

Companies based on FMCG (Fast Moving Consumer Goods) need to increase productivity and improve efficiency in order to stay afloat to keep pace with the increasing prices of food raw materials as a result of global security geopolitical conditions and drastic changes in climatic conditions. One of the affected is PT. DUS produces the basic ingredients of fast food. The purpose of this study was to determine the most efficient production planning option in order to reduce the company's costs. The methods used in this research are Exponential Smoothing Method, Linear Programming Method, and Mean Absolute Percent Error (MAPE) Method for Forecasting; The Economic Quantity Order method includes the determination of Safety Stock and Re-Order Point to determine the amount of Inventory, and the Aggregate Planning Cut and Try Method to determine production capacity with minimum costs. The results showed that the production plan with options for constant labor plans, constant inventory, and overtime resulted in a cost of Rp. 549,840,000.00 while the constant labor plan options, variations in inventory, and running out of inventory result in a cost of Rp. 1,548,350,000.00.
SINTESIS DAN KARAKTERISASI NANOSELULOSA SERBUK DARI TANDAN KOSONG KELAPA SAWIT MENGGUNAKAN ULTRASONIFIKASI Tri Yuni Hendrawati; Efrizon Umar; Anwar Ilmar Ramadhan; Alvika Meta Sari; Mutiara Salsabila; Rahmawati Suryani; Firmansyah Firmansyah; Istianto Budhi Rahardja
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.159-166

Abstract

Indonesia is the largest palm oil producing country in the world. In the palm oil production process, solid waste is produced, one of which is empty palm fruit bunches (EFB) of 25-26% w/w of the total palm oil raw material. OPEFB has several constituent components such as lignin, hemicellulose and cellulose. The high content of α-cellulose in OPEFB can be used as a base material for making nanocellulose. Nanocellulose was made in this study through delignification, ultrasonication and hydrothermal processes with the aim of obtaining the optimum ultrasonication temperature of nanocellulose. Temperature variations were carried out at 40, 50, 60 and 70 °C for 30 minutes. The results of the synthesis process can be seen visually for each temperature variation. Characterization analysis was performed using SEM (Scanning Electron Microscopy). The correlation between temperature variations (x) to the yield percentage of nanocellulose (y) follows the equation y = 7.921x + 7.345 and R2 = 0.9471. The optimum temperature of the ultrasonication process is 70 °C with a yield of 36.9%. The size of nanocellulose powder is 174.85-460.84 nm with SEM at 70 °C.
PERANCANGAN ENTERPRISE ARCHITECTURE MENGGUNAKAN KERANGKA KERJA ZACHMAN PADA PERUSAHAAN DISTRIBUSI Johanes Fernandes Andry; Frian Debby; Jodie Darmawan Wijaya; Julia Gunadi
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.287-298

Abstract

The implementation of information systems must be equal with company's purpose, because at this business era it is an important thing to be paid more attention to by agencies, because the realization of an effective, efficient and accountable information system will certainly help companies to excel in the competition. PT. Anugerah Familindo Lestari is an industry whose business activity is distributing skin and hair care products, the products distributed by this company already have well-known brands and are believed to have the best formulas. This company already has good governance, but of course the company's problems cannot be said to be finished because the information system within the company is still not used optimally, therefore the company needs to do an Enterprise Architecture that can provide clear direction about data, information and all technology that is needed. There is also a thinking tool that is used to discuss problems in system development, the thinking tool in question is the Zachman Framework, this framework helps map and model the IS and IT architecture within the company to be investigated from various perspectives. This research was conducted using the EAP method with the Zachman framework in the form of initialization and planning, business modeling, analysis of current systems, data architecture, applications and technology and implementation plans, then the authors get the results in the scheme of a blueprint which I hope can be a picture that helps companies to realize the system. information in harmony with the enterprise's vision and mission in the future.
PENERAPAN UNDERDRAIN BOX STORAGE UNTUK PENANGGULANGAN GENANGAN DAN PENINGKATKAN RESAPAN AIR DI KELURAHAN PENURUNAN Jhordi Hendarwan; Meilani Belladona; Tri Sefrus
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.199-206

Abstract

Decreased Village has an area of 86 hectares with a population of 4946 people. The land located around this area has undergone rapid land use changes since the establishment of the largest shopping center in Bengkulu Province, namely Bengkulu Indah Mall (BIM). The construction of buildings in this area does not pay attention to the waste water disposal system and rainwater drainage, so that during the rainy season this area, especially in front of the BIM, often experiences puddles. Underdrain Box Storage is one of the eco-drainage concepts that can be developed for dense settlements (urban settlements). The technical concept of drainage put forward is that rainwater puddles are channeled through an open channel where at the bottom is given holes arranged in a series along the channel as a function to fill the storage space, where the bottom of the reservoir is directly connected to the soil. The problem in this research is how to apply Underdrain Box Storage to overcome inundation and increase water infiltration in Decrease Village. The purpose of this study was to design an Underdrain Box Storage design to overcome puddles and water infiltration in Decreased Village. The method used in this research is the collection of primary and secondary data as well as analyzing the data, namely hydrological analysis and hydraulics analysis for overcoming inundation and increasing water absorption. The results of the study showed that the planned flood discharge was around 1.2421 m3/s for 10 years. The time needed to absorb water in the Underdrain Box Storage for 44.44 minutes is 0.7997 m3/s, with an infiltration speed of 0.0375 m/s. Underdrain Box Storage dimensions are designs that have a shape above the dimensions of the storage box with a length (B1) of 0.6 m and a height (H1) of 0.3 m, for the dimensions of a storage box accomodation with a length (B2) of 0.8 m and a height (H2) 0.6 m.
HYDRODYNAMICS ANALYSIS OF JANUS SPHERE AT VARIATIONS OF THE REYNOLDS NUMBER James Julian; Waridho Iskandar; Fitri Wahyuni
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.315-324

Abstract

The hydrodynamics of the homogeneous and Janus spheres were compared computationally at various Reynolds number variations. The Janus sphere is divided into two parts: slippery, which is set as a free-slip wall, and sticky, which is arranged as a free-slip wall. The equation used is the RANS equation for laminar fluid flow. Research focuses more on hydrodynamic forces and visualization of fluid flow by using velocity contours and streamlines. The domains of computational processes are arranged in a rectangular shape. The Richardson Extrapolation method verifies the mesh and gives the result that the meh variation is within the convergence range. Mesh with 105 elements is used for further computation because it only gives the lowest error of 0.129%. Meanwhile, the validation results show that the computational process can follow the experimental results at 0°≤θ≤80°. The Janus sphere is hydrodynamically better than the homogeneous sphere, where the Cl produced is larger and the Cd produced is smaller. The Janus sphere can prevent separation at a Reynolds number of 20 and reduce the recirculation area at a Reynolds number of 50.
EFEKTIVITAS ADSORBEN ARANG AKTIF KULIT DURIAN (Durio Zibethinus) DAN WAKTU KONTAK TERHADAP PENURUNAN KONSENTRASI PEWARNA NAPHTOL LIMBAH CAIR BATIK Wike Maylani; Ismiyati Ismiyati; Yustinah Yustinah
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.247-256

Abstract

This study aims to analyze the characteristics of activated charcoal from durian shells and to determine the absorption capacity of activated charcoal from durian shells which acts as an adsorbent in reducing the concentration of naphtol dye in batik wastewater based on mass variations of activated charchoal (0,5%; 1%; 1,5%; 2%; dan 2,5%b/v) and variation of contact time (0, 25, 50, 75, and 100 in minutes). The characteristic results of activated charcoal from durian shells include a yield content 86,6%; moisture content of 9%; ash content of 13.3%; iodine absorption of 526.635 mg/g; the surface area using the methylene blue method is 456.24 m2/g and the SEM (Scanning Electron Microscope) test to determine the surface morphology of the activated charcoal. Based on the effect of the mass of activated charcoal from durian shells and contact time, the best results are obtained on a mass of 2,5%b/v of activated charchoal on durian shells and a contact time of t5 minutes to reduce the concentration of naphtol dye. In these parameters, the final concentration of naphtol dye from batik wastewater is obtained of 52,64 mg/l with a reduction percentage of naphtol dye of 79,52%.

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