Yanbu Journal of Engineering and Science (YJES)
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Mitigating the Challenges of Textile Wastewater Treatment in Saudi Arabia Utilizing Electrocoagulation Process: Optimization of Operating Parameters
No full textThe increasing importance of treating industrial effluents for environmental and public health protection has necessitated reliable and economical treatment methods capable of meeting stringent effluent quality standards. This study aimed to evaluate the effectiveness of the electrocoagulation (EC) process using iron electrodes for treating real textile wastewater by removing total solids (TS), COD, colour, and turbidity. Various operating parameters, including treatment time, initial pH, current density, stirring speed, and inter-electrode spacing (IES), were investigated to optimize removal efficiency. The results demonstrated that the optimal conditions for maximum pollutant removal were achieved at a treatment time of 60 minutes, a current density of 6.2 mA/cm2, a solution pH of 8-8.5, a stirring speed of 150 rpm, and an IES of 5 cm. Under these conditions, the removal efficiencies reached 79.2% for TS, 92.7% for COD, 88.9% for turbidity, and 98.7% for colour. The findings of this research indicate that the EC process is a simple, quick, and economically viable method for effectively removing pollutants from textile wastewater. Additionally, it is recommended that a coupled treatment unit, such as filtration or adsorption, be employed following the EC process to enhance pollutant removal. Saudi Arabia\u27s Vision 2030 aims to address environmental pollution from industrial wastewater, including textile wastewater, highlighting the importance of balancing industrial growth with environmental stewardship. Present study offers the first thorough analysis of textile wastewater treatment utilizing EC process in the region, enhancing understanding of effective strategies for sustainability and compliance with effluent quality standards
Optimizing Lattice Structures for Tensile Performance: A Comparative Study of Six Geometries Using FDM 3D Printing
No full textIn this study, six distinct infill designs Gyroid, Schwarz, Diamond, Lidinoid, SplitP, and Neovius were developed using ntopy engineering design software and fabricated with a Fused Deposition Modeling (FDM) printer to examine their tensile strength and weight characteristics. The analysis explored the relationship between structural geometry and mechanical performance, particularly tensile strength, while accounting for weight efficiency. Experimental results revealed significant differences in tensile behavior across the designs: Schwarz demonstrated the highest tensile strength (0.7 kN) and superior load-bearing capacity, while Lidinoid showed comparable strength but abrupt failure post-peak force. Neovius excelled in ductility with 7 mm elongation before failure, making it suitable for applications needing high deformation. Gyroid and Diamond offered a balanced performance with moderate strength and ductility, proving versatile for general use. SplitP exhibited unstable and erratic behavior, limiting its reliability for critical applications. These findings underscore the potential for optimizing lattice geometries for lightweight, high-performance applications using FDM, with Schwarz and Lidinoid suited for strength-centric uses, Neovius for flexibility, and Gyroid and Diamond for balanced mechanical needs