MINH DUC, Tran; THI THANH THUY, Phan; THI HUYEN, Nguyen; HUONG, Nguyen Lan. Heterotrophic nitrifying bacteria from activated sludge in DHS reactor for ammonium removal of natural rubber processing wastewater treatment. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 61, n. 5, p. 865–874, 2023. DOI: 10.15625/2525-2518/17141. Disponível em: https://vjs.ac.vn/jst/article/view/17141. Acesso em: 11 jan. 2026.