“Evaluation of Biochar Derived from Partial Pyrolysis of Chara Algae for Adsorption of Lead and Copper from Aqueous Solutions A”. Diyala Journal of Engineering Sciences 18, no. 3 (September 1, 2025): 88–103. Accessed September 8, 2025. https://www.djes.info/index.php/djes/article/view/1877.