Sci Total Environ 2021 Jul 18;797:149093. Epub 2021 Jul 18.
Department of Civil and Environmental Engineering, Hanyang University, Seongdong-gu, Seoul 04763, Republic of Korea. Electronic address:
To investigate the major triggers of nitrous oxide (NO) production in a full-scale wastewater treatment plant, NO emissions and wastewater characteristics (ammonia, nitrite, nitrate, total nitrogen, dissolved inorganic carbon, dissolved organic carbon, pH, temperature, dissolved oxygen and specific oxygen uptake rate), the results of variations in the cycling of a sequential batch reactor (SBR, where only full nitrification was performed), were monitored seasonally for 16 months. Major triggers of NO production were investigated based on a seasonal measured database using a random forest (RF) model and sensitivity analysis, which was applied to identify important input variables. As the result of seasonal monitoring in the full-scale SBR, the NO emission factor relative to daily total nitrogen removal ranged from 0. Read More