Removal of Nitrate from Groundwater by Anoxic Biological Reactor. Tikrit Journal of Engineering Sciences, [S. l.], v. 16, n. 4, p. 1–12, 2009. DOI: 10.25130/tjes.16.4.05. Disponível em: https://www.tj-es.com/ojs/index.php/tjes/article/view/620.. Acesso em: 9 sep. 2026.