Shijian Ge

TL;DR: Control strategies for obtaining partial nitrification are mainly focused on the pH, temperature, dissolved oxygen concentration, real-time aeration control, sludge retention time, substrate concentration, alternating anoxic and aerobic operation, inhibitor and ultrasonic treatment.

TL;DR: Effects of external carbon sources and COD/NO(3)-N on nitrite accumulation through denitrification were studied at a temperature of 28±2.0 °C using mixed activated sludge and it was reasonable to use the pH and ORP as proxies for monitoring the real endpoint of theDenitrification process with the addition of carbon sources.

TL;DR: This study assessed the technical feasibility of removing nitrogen from municipal wastewater by partial nitrification (nitritation) in a continuous plug-flow step feed process and found that without addition of external carbon sources, the above wastewater treatment process reached 86.0% of total nitrogen removal with only 7.23 ± 2.31 mg/L of TN in the effluent, which met the discharge requirements.

TL;DR: Improved the operating conditions of an anaerobic bioreactor for the conversion of complex yeast-fermentation beer from the corn kernel-to-ethanol industry into primarily n-caproic acid and accomplished several functions, including hydrolysis and acidogenesis of complex organic compounds and sugars into SCCAs, subsequent chain elongation with undistilled ethanol in beer, and hydrogenotrophic methanogenesis.

TL;DR: It is suggested that the selective enrichment of AOB as well as the washout of NOB be obtained by process control before making the biomass slowly adapt to low temperatures for achieving partial nitrification to nitrite at low temperatures.