Performance of HNO3-Activated Water Hyacinth-Eichhornia crassipes Bioadsorbent in Adsorbing Lead Metal Ions (Pb2+) in Battery Industry Wastewater Discharge. JCPE [Internet]. 2023 Nov. 30 [cited 2025 Jul. 5];8(2):89-98. Available from: https://jurnal.fti.umi.ac.id/index.php/JCPE/article/view/668