PrefaceChapter 1: Metallurgy and Raw Materials ProcessingEffect of Wood Sawdust Addition on the Morphology, Mechanical Properties, and Thermal Properties of Mullite-Based Porous Ceramic Filter Candidates for Aluminum Casting ProcessEffect of Starch Content on Morphology, Mechanical Properties, and Thermal Properties of Mullite-Based Porous Ceramic as a Candidate Filter in Aluminum CastingThermal Decomposition Analysis of Indonesian Natural Dolomite in AirChapter 2: CompositesInvestigation on Mechanical Properties of Hybrid Natural Fiber Reinforced Polymer CompositeFabrication of Sand and Waste Plastic Composite Based TileMechanical Property Evaluation of (Jute Fibre, Banana Fibre and Groundnut Husk Powder) Reinforced Composite MaterialChapter 3: Materials and Technologies for Environmental ProtectionA Coin-Shaped Polypropylene Bio-Carrier Fabricated Using a Filament-Based 3D Printer for Wastewater TreatmentThe Effect of Fermentation on Increasing the Physico-Chemical Quality of Fish Feed Based on Food WasteSynthesis of ZnO-Al:TiO2 Materials and their Characterization as Photocatalyst Compounds