Abstract:BACKGROUND
Partial nitrification‐anammox (PN‐A) is a widely recognized technology to remove nitrogen from different types of wastewater. Low oxygen concentration is the most used strategy for PN‐A start‐up, but stability problems arise during the operation; thus, in the present study the effects of the type of agitation, oxygenation and shear stress on the sensitivity, energy consumption and performance were evaluated. Recognition of these parameters allows considered choice of the design of an industrial proc… Show more
“…Certainly, the type of nutrient removal in a granular biological reactor defines the type of oxygenation and the necessary operating strategy. Our group has demonstrated the ideal operating conditions in parameters such as oxygen [ 24 ], type of agitation [ 28 ], size of granular sludge [ 29 ] and appropriate operational strategies for several industrial substrates [ 23 , 25 , 30 ].…”
Section: Pollutant Removal Mechanisms Of Aerobic Granular Sludgementioning
“…Certainly, the type of nutrient removal in a granular biological reactor defines the type of oxygenation and the necessary operating strategy. Our group has demonstrated the ideal operating conditions in parameters such as oxygen [ 24 ], type of agitation [ 28 ], size of granular sludge [ 29 ] and appropriate operational strategies for several industrial substrates [ 23 , 25 , 30 ].…”
Section: Pollutant Removal Mechanisms Of Aerobic Granular Sludgementioning
“…Yin et al 143 found that adding a small amount of reduced graphene oxide (RGO) to a started anammox reactor will increase the anammox bacteria activity, thereby shortening the reactor startup time and improving the nitrogen removal rate. Jara-Muñoz et al 144 also quickly started the coupling reactor under two conditions of hypoxia and higher temperatures (30 C to 40 C), with shortened the microbial doubling time. A number of studies have shown that during the coupling reactor start-up process, controlling the NO 2 À /NH 4 + ratio at 1.32 : 1 is conducive to promoting the rapid growth of bacteria and shortening the reactor startup time.…”
As a new wastewater biological nitrogen removal process, anammox and partial denitrification coupling not only plays a significant role in the nitrogen cycle, but also holds high engineering application value.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.