Analysis of Iron (Fe) Removal from Post-Tin Mining Ponds Using Sugarcane Bagasse Activated Carbon: A Case Study in Riding Panjang Village, Bangka Regency. Stannum [Internet]. 2026 Jul. 28 [cited 2026 Aug. 3];8(1):28-33. Available from: https://www.journal.ubb.ac.id/index.php/stannum/article/view/7809