02561ntm a2200313 i 4500003000800000005001700008006001900025007000300044008004100047020003300088040002700121100003400148245018900182264003600371264001200407300003700419336002100456337002500477338002300502347002400525500005000549502013200599504003800731520129700769610006502066650004502131650002602176856004502202MY-KuUP20260427122356.0t||||fr|||| 000 0 ta260427t20252025my a|||fr|||| 000 0 eng d  aTHE0010505 (Local)qHardback  aUMPSAbengcUMPSAerda1 aMaisarah Binti Said,eauthor.10aPreparation and chracterisation calcium oxide impregnate silica (cao.Sio2) from natural waste (seashells and rice husk) for sterol glucoside removal in biodiesel /cMaisarah Binti Said 1aKuantan, Pahang :bUMPSA,c2025 4c© 2025  axi, 108 pages :billustrations ;  2rdacontentatext  2rdamediaaunmediated  2rdacarrieravolume  2rdaatext filebPDF  aFaculty of Industrial Sciences and Technology  aFinal Year Report (Bachelor of Applied Science of Industrial Chemistry) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025  aInclude bibliographical reference3 aThe increasing global demand for sustainable energy has spurred innovation in biodiesel  production, particularly in tackling significant challenges like the precipitation of sterol  glucoside (SGs), which can hinder the fuel performance in colder climates. This study  explores the preparation and characterization of a hybrid calcium oxide impregnate silica  (CaO.SiO2) adsorbent made from natural waste materials, including seashells and rice  husk. Advanced characterization methods such as FESEM, BET, FTIR and TGA  confirmed the adsorbent’s mesoporous structure, thermal stability, and chemical  composition, making it effective for SGs adsorption. Batch adsorption experiments  revealed an optimal SGs removal efficiency of 83.42% under specific conditions (4.5%  loading, 60℃, 60 minutes). The adsorption treatment significantly enhanced the quality  of biodiesel, lowering the acid value from 0.937 mg KOH/g to 0.561 mg KOH/g and  improving the oxidative stability by reducing the iodine value to 41.80 g/100g. These  results highlight the potential of eco-friendly, waste-derived adsorbents to effectively  tackle the biodiesel purification challenges, contributing to greener and more efficient  energy solutions while supporting waste reduction and sustainability initiatives.20aFaculty of Industrial Sciences and TechnologyxDissertations 0aUniversities and collegesxDissertations 0aThesesxDissertations  uhttps://umpir.ump.edu.my/id/eprint/46179