Chen, Jieyun, Yan Lin, Zhi Zhang, and Ting Wei. “Effect of Different Influent Flow Distribution Ratios on Multistage A O Process for Removal of Carbon and Nitrogen”. Asian Journal of Chemistry 26, no. 3 (January 30, 2014): 709–713. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_4_17.