NGUYỄN, T. P.; NGUYỄN, X. C.; TRẦN, T. C. P.; NGUYỄN, T. H. G.; NGUYỄN , T. T. N. Evaluating organic matter removal efficiency in pig farm wastewater after biogas tank using a two-stage filtration system with biochar from Mimosa pigra. Hue University Journal of Science: Natural Science, [S. l.], v. 134, n. 1C, p. 147-157, 2025. DOI: 10.26459/hueunijns.v134i1C.8089. Disponível em: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/8089. Acesso em: 7 oct. 2025.