This study aims to investigate the potential of kepok banana peel (Musa paradisiaca L.) and key lime (Citrus amblycarpa) as raw materials for biobattery production and to evaluate the effects of KOH activation concentration and the addition of the ionic salts CaCl₂ and MgSO₄ on biobattery performance. Kepok banana peel was dried, ground into powder, […]
Water hyacinth (Eichhornia crassipes) is an abundant lignocellulosic biomass with strong potential as a feedstock for bioethanol production, but its relatively high lignin content limits the accessibility of cellulose and inhibits the subsequent hydrolysis process. This study aims to analyze the effect of ultrasonic-assisted pretreatment duration and NaOH concentration on the lignocellulosic composition and the
The increasing generation of organic waste from the food processing industry has created opportunities for converting biodegradable residues into renewable energy. Cassava sludge and tofu wastewater contain biodegradable organic matter and may serve as substrates for anaerobic digestion. This study aimed to characterize the initial physicochemical properties of cassava sludge and tofu wastewater and assess
The textile industry in Indonesia has an important role in the economy, but the presence of phenol is also one of the main causes of environmental pollution. Therefore, innovative solutions are needed to reduce this problem. By using Zinc Acetate Dihydrate you can obtain ZnO compounds, which are included in the category of photocatalyst compounds.
Soybean is an important food commodity whose market value is strongly influenced by seed quality. However, quality inspection in many small and medium agro-industries is still performed manually, making the process slow, subjective, and poorly documented. This study develops an automated soybean inspection system that combines deep-learning-based defect recognition with traceability-supported quality reporting through workflow
This study presents an analytical evaluation of the existing ANSI 50/51 overcurrent relay settings for the Coal Mill 2B motor at the STG-BB power plant of PT Pupuk Sriwidjaja Palembang. Direct trip testing was not conducted because the motor is part of an operating industrial installation. The evaluation combines a review of the existing relay
Concrete columns play a vital role in structural systems due to their ability to resist axial and lateral loads. Enhancing column performance through confinement has been widely studied, particularly using steel tube confined concrete (STCC). In parallel, the growing amount of metal waste highlights the need for innovative and sustainable reuse strategies. One type of
Sustainable Reuse of Formula Milk Tin Waste for Enhancing Concrete Confinement Read More »
The significant increase in carbon emissions from the transportation sector, which has risen by 108% in under five years, has intensified the need for sustainable alternative energy sources. Hydrogen energy, utilized through fuel cells in electric vehicles, presents a promising solution for achieving environmentally friendly transportation. This technology facilitates an electrochemical reaction between hydrogen and
This study investigates the internal and external factors influencing high school graduates’ interest in pursuing higher education in Sukamara Regency, Indonesia—a rural region with limited tertiary education access. Data were collected from 277 final-year students across 14 schools using a structured questionnaire. Exploratory Factor Analysis (EFA) revealed seven key motivational dimensions, with Aspirational Drive and
Natural disasters pose significant risks to human life, infrastructure, and environmental sustainability, particularly in geographically isolated regions where communication infrastructure is limited or unavailable. The lack of reliable connectivity in such areas often delays disaster detection, information dissemination, and emergency response. This study proposes the development of a multi-access array antenna system designed to support