Preface Chapter 1: Additive Manufacturing The Machinability of Ti-6Al-4V Fabricated by Laser Powder Bed Fusion with Different Build Orientations in Thermal Assisted Machining Investigation of 3D Printing Parameters on Cooling Rate, Crystallinity, and Tensile Properties of Recycled Polyethylene Terephthalate Comprehensive Nonlinear Vibration Analysis of PLA Cantilever Plates: Analytical, Numerical, and Experimental Approaches Chapter 2: Biodiesel The Role of Nanoparticle Additives in Droplet Combustion of Biodiesel Blend Fuel : A Review The Role of CaO Additive in Biodiesel a Review Comprehensive Review of the Chemical Reactivity of B40 in Premixed Combustion Systems: Integration of Molecular Simulations and Thermal Experiments Chapter 3: Materials and Technologies for Pollutants Removal and Water Treatment and Storage Preparation of Activated Carbon from Juvenile Durian Fruit by Activating KMnO4 for Methylene Blue Adsorption Comparative Photocatalytic Performance of Pullulan-Assisted Copper Oxide, Zinc Oxide, and their Composites for Methylene Blue Degradation Cu/Mn Oxidation Catalyst Integration into Recycled Carbon Fiber-Based Filter for Diesel Soot Emission Control Modular Integration of 3D-Printed Solar-Driven Interfacial Evaporation System for Enhanced Water Purification Efficiency Fabrication of Eggshell Membrane-Templated CuO-ZnO Nanocomposite for Microbial Desalination Cell Synthesis and Performance Evaluation of Chitosan-PEG-Cellulose Acetate Nanofiltration Membrane for Calcium Removal in Groundwater The Efficiency of Walnut Shells Filter in the Removal of Cooking Oil Residues from Domestic Kitchen Wastewater Effects of Storage Temperature and Sunlight Exposure on the Physiochemical Properties of Bottled Drinking Water Influence of pH on Nitrate Removal from Groundwater Using Shredded Tire Rubber Comparative Evaluation of Fittonia argyroneura and Syngonium podophyllum in Phytoremediation of Synthetic Domestic Wastewater under Different Contact Times.