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Satera: Jurnal Sains dan Teknik Terapan
Published by Akademi Komunitas Industri Manufaktur Bantaeng
ISSN : -     EISSN : 30253551     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Electrical & Electronics Engineering Materials Science & Nanotechnology
SATERA: Jurnal Sains dan Teknik Terapan is a multidisciplinary research journal that serves as a platform for the dissemination of cutting-edge scientific and technological advancements. The journal aims to publish high-quality, original research articles, reviews, and case studies that contribute to the practical applications of science and engineering across various fields. The journal fosters collaboration and knowledge exchange among experts in applied science and engineering, aiming to bridge the gap between theoretical knowledge and real-world applications. SATERA: Jurnal Sains dan Teknik Terapan receives manuscripts encompass a broad range of research scope in applied science and engineering such as (but not limited to): - Applied Science: The journal publishes research findings related to applied sciences, including physics, chemistry, biology, material sciences, and computational sciences. It encourages studies that demonstrate the practical implications of scientific knowledge in real-world scenarios. - Applied Engineering: The journal covers various branches of engineering, such as civil, mechanical, electrical, chemical, industrial, and environmental engineering. It focuses on practical applications, innovation, and technological advancements in these fields. - Technology and Innovation: the journal highlights research that explores technological advancements and innovative solutions in areas like information technology, telecommunications, biotechnology, nanotechnology, robotics, and automation. - Interdisciplinary Studies: The journal welcomes interdisciplinary research that integrates knowledge from different fields of science and engineering, leading to practical applications and advancements in multiple areas.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 27 Documents
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Nickel Extraction from Laterite Ore via Sulfuric Acid Leaching and Iron Precipitation Using NaOH with Gravimetric Analysis Ardiansah, Ardiansah; Albar J, Muh. Azis; Aldi, Aldi
Jurnal Sains dan Teknik Terapan Vol. 3 No. 2 (2025): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

The global demand for nickel has continued to rise, in line with the growth of the stainless steel industry and renewable energy technologies. Indonesia, as one of the countries with the largest reserves of laterite nickel ore in the world, faces challenges in processing limonite ore, which typically contains high levels of iron and lower concentrations of nickel. This study aims to improve the efficiency of nickel extraction through a hydrometallurgical approach, using sulfuric acid (H₂SO₄) leaching, selective iron precipitation with sodium hydroxide (NaOH), and nickel determination using the gravimetric method. The leaching process was conducted at 90°C, varying the leaching time and acid concentration, followed by iron precipitation through pH adjustment and the addition of hydrogen peroxide to oxidize Fe²⁺ to Fe³⁺, which subsequently forms Fe(OH)₃. The resulting iron-free filtrate was then reacted with dimethylglyoxime (DMG) to form a pink precipitate of the nickel complex [Ni(DMG)₂], which was then analyzed gravimetrically. The results showed that increasing leaching time and solvent concentration significantly enhanced the nickel extraction percentage. This approach proved to be effective in improving the selectivity and efficiency of nickel separation from impurities, thereby supporting a cleaner and more sustainable nickel production process.
The Analysis of the Effect of Low Hydrogen SMAW Electrode Drying Temperature on the Bending Strength of Low Carbon Steel Baso Palinrungi, Andi; Halim Asiri, Muhammad; Habib, Faisal
Jurnal Sains dan Teknik Terapan Vol. 3 No. 2 (2025): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

Pemilihan jenis elektroda pada pengelasan dapat menentukan kualitas hasil lasan. Elektroda low hydrogen dipastikan yang akan digunakan selalu kering, sebaiknya berada di lingkungan bebas dari kelembaban atau dalam kondisi siap pakai dan kering. Jika elektroda telah menyerap air melebihi batas yang diperbolehkan, maka elektroda tersebut harus dipanaskan sebelum digunakan pada saat mengelas untuk menghilangkan kandungan air. Penelitian ini bertujuan untuk menganalisa kekuatan bending pada material baja karbon rendah ST 37 pada pengelasan SMAW dengan suhu pengeringan. Hasil pengelasan dengan pemanasan elektroda dengan perlakuan panas 1500 C, 3000C dan tanpa perlakuan panas selama masing-masing 60 menit diuji menggunakan uji bending. Dari hasil data pengujian dan diolah dalam persamaan diperoleh pada pengujian bending didapatkan nilai tegangan bending tertinggi pada elektroda panas 3000C sebesar 1819,99 N/mm2 dan yang terendah pada elektroda tanpa perlakuan panas sebesar 574.43 N/mm2. Hasil penelitian ini menunjukkan bahwa pengaruh suhu pengering elektroda low hydrogen sangat berpengaruh terhadap kekuatan bending dari hasil pengelasan sesuai rekomendasi pabrikan elektroda.
Design and Construction of Cassava Chatting Machine for Household Industry in Bulukumba District Ratlalan, Roberth M; Odilia Valentine
Jurnal Sains dan Teknik Terapan Vol. 2 No. 2 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

This cassava chopping machine was made to support increased production of cassava slices ready to be fried. On a small scale, this work can be done manually with a knife or other simple cutting tool. Problems will arise if the production to be sliced or cut is available in large quantities. In order to make it easier for people to process cassava and learn about existing problems, namely, how to produce a cassava chopping machine with uniform slices using a blade disc with 4 blades. This machine uses an electric motor drive and a Speed Control speed controller. The working principle of this machine is that cassava that has been peeled is inserted into the cutting hole and then the knife disk will chop the cassava. After the cassava is chopped, the chopped results will fall into the funnel, then collected in the container that has been prepared. This cassava chopping machine can chop 157.5 kg/hour of cassava with an average thickness of 1.1 mm.
Design and Building of an Automatic Trash Can Based on Arduino Astuty, Astuty; Nurfadilah, Anggriani; Annisa, Annisa; Khatima, Khusnul
Jurnal Sains dan Teknik Terapan Vol. 2 No. 2 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

Trash that piles up and exceeds the capacity of the trash bin will create an unhealthy environment and aesthetically look dirty. The lack of use of technological information in waste management by cleaning staff contributes to slow waste handling. This research designs a trash can system that can send information in the form of notifications to officers that the trash can is full and can be controlled via message replies on the Telegram application. This system is designed using an ESP32 microcontroller as a control center, a Sharp Distance infrared sensor to detect the volume of waste in the trash can, an LCD to display the condition of the volume and a DC power window motor to move the container and a Telegram bot as an application that receives notifications and controls the motor. From the results of sensor testing, objects at a distance of >7 cm can activate the motor to work. The network connection when using Indosat IM3 is better than XL-Axiata because the DC motor responds faster to commands. This trash can make it easier for cleaning service to control the condition of the trash can.
Arduino Uno-Based Fire Alarm System Nur Asmi Rahmawati; Hermansyah, Hermansyah
Jurnal Sains dan Teknik Terapan Vol. 2 No. 2 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

Fire is a disaster that can cause significant losses to life and property. Therefore, the development of an effective fire alarm system is essential in order to protect safety and security. This research aims to develop an "Arduino Uno-Based Fire Alarm System" that uses Arduino Uno as the main control platform. This system is designed to detect abnormal temperature increases and the presence of smoke associated with a fire. The research methodology includes needs analysis, system design and planning, prototype development, testing, and evaluation. Temperature and smoke sensors are used to detect temperature changes and the presence of smoke. Arduino Uno is utilized as a controller to integrate the sensors and alarm system, providing early warnings through sound. The testing results of the device shows excellent responsiveness. The response time from detecting high-temperature situations to activating the alarm is recorded in seconds, enabling quick action to address emergencies
Characterization of MCM-41 Mesoporous Silica using the Hydrothermal Method Indriani, Iin; Gusti, Herdie Idriawien; Agustina, Ayu Safitri; Karneng, Syahdam
Jurnal Sains dan Teknik Terapan Vol. 2 No. 2 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

This research was conducted to determine the characteristics of MCM-41 mesoporous silica. The mesoporous silica synthesis process used the hydrothermal method. The main ingredients used were cetyltrimethyl ammonium chloride (STAK) surfactant as a structure directing agent and ludox HS-40 as a silica source. The synthesized MCM-41 mesoporous silica was then characterized by using X-Ray Powder Diffraction (XRD) and Fourier Transform Infrared (FTIR). The XRD characterization results showed several peaks indexed with decreasing intensity, namely (100), (110) (200) and (210). This is a typical peak possessed by MCM-41 mesoporous silica. These peaks followed a hexagonal structure pattern. The FTIR spectrum showed several distinctive peaks belonging to MCM-41 mesoporous silica.
(Review Article) Identification of Endophytic Bacteria by 16S rRNA Analysis Elfira Jumrah; Islawati, Islawati; Salnus, Subakir
Jurnal Sains dan Teknik Terapan Vol. 2 No. 2 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

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Abstract

16S rRNA analysis has been used for decades to identify and identify phylogenetic relationships for microorganisms, for instance bacteria. 16S rRNA analysis can identify at the genus and species level. One of the most frequently identified microorganisms using 16S rRNA analysis is endophytic bacteria. Endophytic bacteria have a symbiotic relationship with plants and can synthesis the same compounds as their hosts. The existence of endophytic bacteria benefits their hosts because it can protect plants against insects or pathogens and can help plant growth by producing plant growth regulator compounds, such as IAA, GA3, and cytokinins. In addition, some endophytic bacteria such as Bacillus Burkholderia Enterobacter species, and Staphylococcus sp have antibacterial, antioxidant and anticancer activity. Hence endophytic bacteria need to be identified molecularly. Literature studies show that endophytic bacteria have been successfully isolated from various plants such as Bacillus cereus, Baicillus pumilus, Baicillus siamensis, Burkholderia Enterobacter, and Staphylococcus sp. These endophytic bacteria have antibacterial activity, especially on pathogenic bacteria such as Klebsiella pneumonia, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Salmonella sp.

Page 3 of 3 | Total Record : 27

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