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Ali Rahmat
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Applied Research in Science and Technology
Published by Research and Social Study Institute
ISSN : 27767213     EISSN : 27767205     DOI : -
Core Subject : Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Environmental Science
Applied Research in Science and Technology is a peer-reviewed open-access journal which publishes result from scientists and engineers in many fields of science and technology. Every submitted manuscript will be reviewed by at least two peer-reviewers using the double-blind review method. focus and scope: Infrastructures Technology, Remote Sensing and Geospatial Information System, Soil Science, Geology, Marine Science, Technology and Engineering, Electrical, Biomedical Engineering, Renewable Energy, Physics, Chemistry, Materials, Biology, Forestry, Agriculture, Earth & Space Science.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol. 4 No. 2 (2024): Applied Research in Science and Technology" : 5 Documents clear
Analysis of the Effectiveness of Compost-Based Activated Carbon for the Removal of Heavy Metals from Leachate at Piyungan Landfill Iresha, Fajri Mulya; Alisha, Rania; Melani, Noverli Sukma; Gutama, Hatta
Applied Research in Science and Technology Vol. 4 No. 2 (2024): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v4i2.65

Abstract

Leachate from the Final Disposal Site (TPA) in Piyungan, Yogyakarta, is a significant source of potential heavy metal contamination. This represents a serious environmental issue as it can pose a threat to human health and ecosystems. Given its significant negative impact, this study aims to evaluate the efficiency of Compost-Based Activated Carbon (CBAC) as an environmentally friendly alternative solution for reducing heavy metal concentrations in leachate. CBAC is produced through a pyrolysis and chemical activation process using 32% HCl. The study tested the ability of CBAC to adsorb Cr, Cu, and Pb from leachate samples. The results indicate that CBAC exhibits significant adsorption capacity, with the highest removal efficiency recorded for copper (Cu), reaching 52.38% in 20 minutes. The removal efficiencies for chromium (Cr) and lead (Pb) were 17.8% and 12.09%, respectively, although at different optimal times. These differences in efficiency suggest that the characteristics of each heavy metal influence its interaction with CBAC. The findings demonstrate the potential of CBAC as an effective and sustainable alternative in waste management, particularly in reducing heavy metal pollution. This study makes a significant contribution to the development of more environmentally friendly and sustainable waste management technologies, offering an innovative solution to address heavy metal contamination issues at TPA Piyungan and similar sites.
Web-Based Expert System for Dragon Fruit Disease Diagnosis Using Bayes Method Koa, Dionisius Raffi; Mau, Sisilia Daeng Bakka; Sinlae, Alfry Aristo Jansen
Applied Research in Science and Technology Vol. 4 No. 2 (2024): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v4i2.69

Abstract

Dragon fruit cultivation in Kampung Daun Baumata has faced significant challenges due to plant diseases, with farmers reporting a 15% yield reduction in 2022. This study addresses this critical agricultural problem by developing an innovative web-based expert system that utilizes Bayesian probability theory for accurate and timely disease diagnosis. The system provides farmers and agricultural stakeholders with an accessible digital tool to identify common dragon fruit diseases, including stem rot, anthracnose, and fungal infections, through symptom analysis and probability calculations. Implemented using PHP programming language and MySQL database, the expert system offers several advantages over traditional diagnostic methods. It operates independently of human experts, delivers real-time results, and provides prevention recommendations. The Bayesian approach enables the system to process uncertain information and update disease probabilities as new symptom data becomes available, significantly improving diagnostic accuracy compared to conventional methods. Field testing demonstrates the system's effectiveness in supporting farmers' decision-making processes, enabling early disease detection, and facilitating appropriate treatment measures. The implementation of this technological solution has the potential to reduce economic losses, improve crop yields, and promote sustainable farming practices in dragon fruit cultivation. By bridging the gap between farmers and agricultural expertise, this research contributes to the digital transformation of agricultural disease management in developing regions.
Preparation of Sustainability Instruments for Community-Based on Solid Waste Management Programs: A Case Study of TPS3R in Sleman Regency, Yogyakarta A'fia, Khoiria; Putra, Hijrah Purnama
Applied Research in Science and Technology Vol. 4 No. 2 (2024): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v4i2.86

Abstract

The solid waste management system requires a community component that is directed through Community-Based Solid Waste Management (CBSWM) activities. One of the CBSWM activities in Indonesia is TPS3R (3R Waste Treatment Facility) or MRF (Material Recovery Facility). The fact on the ground was that many TPS3R management systems were not running optimally. This has the potential to hinder the sustainability of the TPS3R program. This sustainability can be assessed through proper instruments that measure program effectiveness. This research aims to develop an instrument for assessing the level of sustainability and experiment with it at TPS3R. The instrument is used to analyze the sustainability of the studied programs to determine which ones are feasible to continue. The instrument consists of 20 indicators, parameters, assessment scales, and weightings that are integrated into five aspects of waste management, including operational, technical, regulatory, community participation, financing, and institutional aspects. The research analysis method applied is the scoring method to assess the level of sustainability in TPS3R. The research was conducted at six TPS3R locations in Sleman Regency Yogyakarta. Experiments with the instrument revealed that each TPS3R received a distinct score and was classified according to the planned level of sustainability. The results of the sustainability level assessment are divided into three statuses: very sustainable, achieved by TPS3R Purwo Berhati with a percentage of 80%. Then, the sustainable status was achieved by TPS3R Brama Muda, TPS3R Mexicana, and TPS3R GIAAAAAT with percentages of 70%, 70%, and 78%, respectively. Finally, the status of fairly sustainable was achieved by TPS3R Ben Resik and TPS3R Randu Alas, at 58% and 57%, respectively. Based on the study's results, this instrument can be utilized in the sustainability assessment of TPS3R.
Antihyperuricemia of Lemongrass Extract (Cymbopogon citratus) on Male Mice with Potassium Oxonate and Chicken Liver Juice Induced Fadhila, Rizky; Nainggolan, Hotlina
Applied Research in Science and Technology Vol. 4 No. 2 (2024): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v4i2.91

Abstract

Background: Hyperuricemia is a pathological condition characterized by increased blood uric acid levels exceeding 7 mg/dL. The use of medicinal plants for managing hyperuricemia has garnered significant attention.Aims & Methods: This study aims to evaluate the anti-hyperuricemic effect of lemongrass extract (Cymbopogon citratus) in a hyperuricemia model using 18 Deutsche Denken Yoken (DDY) mice induced with potassium oxonate and chicken liver juice. Lemongrass simplicia was extracted by maceration using 96% ethanol. Test animals were induced with hyperuricemia by administering chicken liver juice at a dose of 0.5 mL/20 g body weight (BW) for seven consecutive days and potassium oxonate at a dose of 250 mg/kg BW on the eighth day. The test animals were divided into six test groups, namely group 1 was the normal; group 2 was the negative control; group 3 was the positive control (allopurinol at 13 mg/kg BW); groups 4 – 6 were treatment lemongrass extract at doses of 350, 700, and 910 mg/kg BW, respectively.Result: The results showed that group 6 mice statistically significantly reduced uric acid levels (p = 0.001, p < 0.05). Cymbopogon citratus extract effectively reduces uric acid levels and holds substantial potential as a uric acid-lowering agent, supporting its empirical use in managing hyperuricemia.
Evaluation of Oil Palm Empty Fruit Bunch Compost Application on Samhong Mustard (Brassica juncea L.) Cultivation in Polybags Kumara, Nur Rizha Adi; Sumiahadi, Ade
Applied Research in Science and Technology Vol. 4 No. 2 (2024): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v4i2.93

Abstract

Background: Samhong is a mustard variety that is becoming increasingly popular in Indonesia. To increase its production, appropriate cultivation technologies are necessary, such as enriching the growing medium with organic matter. One organic material that can be utilized is compost made from oil palm empty fruit bunches (OPEFB). OPEFB is the solid waste remaining after oil has been extracted from the flesh (mesocarp) and kernel (endocarp) of fresh oil palm fruits.Aims & Methods: This study aimed to evaluate the effects of different OPEFB compost dosages on the growth and yield of samhong mustard plants. The research was conducted from March to May 2023 at the Experimental Field of the Faculty of Agriculture, Universitas Muhammadiyah Jakarta. The study utilized a Randomized Complete Block Design (RCBD) with five treatment levels, consisting of a control group using inorganic NPK fertilizer and four different doses of OPEFB compost (25, 50, 75, and 100 g/plant).Result: The results of this study indicate that, in general, all OPEFB compost applications resulted in lower growth and yield compared to the NPK control. However, a positive trend was observed where higher compost doses led to improved plant growth. Furthermore, correlation analysis revealed a strong to very strong positive correlation between OPEFB compost dose and the growth of above-ground parts and yield of the plants. This study indicated that OPEFB compost has potential to be used as organic fertilizer with higher doses.

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