Ran Yin

Jul 11, 2024 | nature.com | Jie Hu |Ran Yin |Jinfeng Wang

AbstractWhile the anaerobic-anoxic-oxic (AAO) process is the most widely applied biological wastewater treatment process in municipal wastewater treatment plants (WWTPs), it struggles to meet the increasing demands on biological toxicity control of the treated effluent. To tackle this challenge, this study develops machine learning (ML)-based models for optimizing the AAO treatment process towards improving its toxicity reduction efficacy for the effluent.

Jun 15, 2023 | nature.com | Ran Yin |Claire Anderson |Jing Zhao |Alexandria B. Boehm

AbstractIncreasing the efficiency of the processing units used to purify municipal wastewater to potable quality would enhance the sustainability of potable reuse. Conventional advanced oxidation processes using 254 nm UV light degrade contaminants by both direct photolysis and reaction with radicals produced by hydrogen peroxide photolysis. Treatment goals include 0.5-log removal of 1,4-dioxane, reducing N-nitrosodimethylamine to <10 ng l−1 and 6-log virus inactivation.