Acid-modified coffee grounds biochar for nitrate and nitrite removal: an optimization via central composite design

Sin-Ying TanSumathi SethupathiKah Hon LeongTanveer Ahmad2024-10-152024-10-152023-09-04https://doi.org/10.1007/s13762-023-05182-3https://dspace-cris.utar.edu.my/handle/123456789/1976Acid-modified coffee grounds biochar for nitrate and nitrite removal: an optimization via central composite designjournal-article