Effect of sludge retention time (SRT) on micro-ecological niche competition kinetics between ammonia-oxidizing organisms (AOO) and nitrite-oxidizing organisms (NOO) in a single system - Yifan Li; Yuying Huang; Meng Sun; Jing Wang; Feiyong Chen; Yuanyuan Shao; Hidenari Yasui; Chenxi Sun; Rajeev Goel; Bing Liu (Journal of Water Process Engineering, 2023)