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 , [S. l.], v. 18, n. 3, p. 88–103, 2025. DOI: 10.24237/djes.2025.18306. Disponível em: https://djes.info/index.php/djes/article/view/1877. Acesso em: 6 sep. 2025.