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All Journal Radinka Journal of Science and Systematic Literature Review
Perera, Hasith
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Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Mathematics Public Health

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Review on Comparison of Single Stage and Multistage and Dry-Wet Anaerobic Digestion for Biomethane Production and Evaluation the Waste Management Strategy Perera, Hasith; Shen Hosan; Vimukthi VITHANAGE; Dasith WIJESEKARA; Niroshan GUNAWARDHANA; Vimukthi THARAKA; Koswattage K. R; Shakya ABEYSINGHE
RADINKA JOURNAL OF SCIENCE AND SYSTEMATIC LITERATURE REVIEW Vol. 3 No. 1 (2025): Radinka Journal of Science and Systematic Literature Review
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/rjslr.v3i1.457

Abstract

The circular bioeconomy depends on anaerobic digestion technology to obtain energy from waste materials while minimizing ecological contamination. The research looks at how well single-stage and multi-stage anaerobic digestion systems work, comparing their advantages and disadvantages by examining design elements, stability conditions, and the amount of biogas produced from different types of feedstock. A comparison study evaluated the benefits together with restrictive factors and real-world uses of single-stage and multi-stage anaerobic digestion systems. The examination used microbial stability as well as biogas production rates, cost-effectiveness, and compatibility with various feedstocks to determine the various factors. Single-stage anaerobic digestion systems produced cost-effective operation along with simple management, which benefits small-scale facilities operating on uniform organic waste. Their microbial stability was restricted, which eventually led to diminished biogas production output. Multi-stage anaerobic digestion systems are more expensive to set up and keep running, but they allow for better control of the process and produce more biogas when dealing with a mix of agricultural waste and regular trash. System design stands as a fundamental element that determines the results of anaerobic digestion processes. The selection between single-stage or multi-stage systems depends on whether waste streams are simple and uniform or complex. Future development of anaerobic digestion technology requires concentration on lowering operating expenses along with the implementation of time-sensitive monitoring equipment and integration with clean energy facilities. The development of these steps represents fundamental requirements for establishing the sustainable scalability of anaerobic digestion systems as the primary waste management technology.
The Role of Computer Simulation Impact for Sustainable Development in Engineering Experiments: Mini Review Hosan, Shen; Perera, Hasith; vithanage, Vimukthi; Wijesekara, Dasith; Kelum, Anjula; koswattage, kaveenga
RADINKA JOURNAL OF SCIENCE AND SYSTEMATIC LITERATURE REVIEW Vol. 3 No. 3 (2025): Radinka Journal of Science and Systematic Literature Review
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/rjslr.v3i3.590

Abstract

Sustainable development has become a foundational principle in modern engineering research and practice. Conventional physical experiments frequently require considerable resource utilization, produce waste, and demand substantial time, thereby presenting obstacles to environmental objectives. This paper aims to evaluate the impact of computer-based simulations as a transformative approach to engineering experiments, specifically examining how they align with sustainability goals compared to conventional methods. This study employs a mini-review methodology, synthesizing data from various case studies across engineering disciplines. The analysis focuses on three primary sustainability metrics: resource efficiency, environmental impact reduction, and temporal optimization. The findings demonstrate that computer simulations drastically reduce the carbon footprint of research by minimizing the need for physical prototypes and hazardous materials. Furthermore, simulations allow for rapid iterative testing, which fosters innovation while ensuring high experimental rigor. Case studies show that integrating simulation tools can lead to a significant decrease in material waste up to 60-80% in certain manufacturing and structural testing scenarios. Conclusion: This study concludes that computer-based simulations are not merely a technical convenience but a critical driver for sustainable development in engineering. By maintaining experimental scrupulousness while enhancing efficiency, simulations provide a viable pathway for future-proof engineering practices that balance technological progress with environmental responsibility.
Advance Pumping Technologies for Sustainable Bio Energy Systems: A Review of Efficiency Metrics and Integration Strategies Perera, Hasith; hosan, shen; wijesekara, dasith; vithanage, vimukthi; sbeysinghe, shakya; koswattage, kaveenga
RADINKA JOURNAL OF SCIENCE AND SYSTEMATIC LITERATURE REVIEW Vol. 3 No. 3 (2025): Radinka Journal of Science and Systematic Literature Review
Publisher : RADINKA JAYA UTAMA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56778/rjslr.v3i3.595

Abstract

The paper presents a systematic review of the pump technologies in industrial sectors by comparing the data on operational performance and case studies. Three types of pumps were considered, namely, positive displacement (rotary, reciprocating, linear), kinetic (axial flow, centrifugal, submersible), and special (vacuum, jet, peristaltic). The approach included literature review on technical specifications, evaluation of literature on the field performance of the pumps in industrial functions, and comparative evaluation of the pump selection criteria in the industries such as oil and gas, chemical processing, pharmaceuticals, mining, and bioenergy. It has been shown that positive displacement pumps are effective in high-viscosity flows more than 10,000 cP, and screw pumps are the most efficient with 80-95% efficiency covering the widest viscosity (1 to 10¹⁰ cP). The pressure capacity of reciprocating systems was excellent and plunger pumps were made to a pressure of up to 1,000 bar with low leakage rates of 0.1-0.5%. The most effective pumps were kinetic pumps that were suitable in high flow applications and in the case of axial flow systems that operated on a volume of up to 80,000 L/min. Positive displacement pumps were necessary in the bioenergy processes to transport biomass and digestate and centrifugal pumps to manage biogas condensate in the best way. This analysis results in the development of the evidence-based selection framework that allows operational cost savings of 15-30% due to the increase in the efficiency to the same extent and the achievement of completion of bioenergy process efficiency by 12%. These results give practical recommendations on how to maximize the choice of fluid transport systems in various industrial uses.
Co-Authors Dasith Wijesekara Hosan, Shen Kelum, Anjula Koswattage K. R koswattage, kaveenga Niroshan Gunawardhana sbeysinghe, shakya Shakya ABEYSINGHE Shen Hosan Vimukthi THARAKA Vimukthi Vithanage Vithanage, Vimukthi Wijesekara, Dasith