Sin-Ying TanSumathi SethupathiKah Hon LeongTanveer Ahmad2024-12-262024-12-2620249783031519031978303151904810.1007/978-3-031-51904-8_18https://dspace-cris.utar.edu.my/handle/123456789/8020Acid-Treated Spent Coffee Bean Biochar for Nitrate and Nitrite Adsorptionproceedings-article