Plant-based calcium silicate from rice husk ash: A green adsorbent for free fatty acid recovery from waste frying oil

by Zainal, Zainor Syahira; Hoo, Pengyong; Ahmad, Abdul Latif; Abdullah, Ahmad Zuhairi; Ng, Qihwa; Shuit, Siewhoong; Rahim, Siti Kartini Enche Ab; Andas, Jeyashelly
Published in HELIYON (2024)