Results 101 to 110 of about 651,211 (214)

The Role of Polyphosphate Accumulating Organisms in Environmental Phosphorus Cycling

, 2017
Phosphorus (P) is a limiting nutrient in freshwater ecosystems and excess P from anthropogenic sources impairs water quality. Strategies to manage P pollution depend on abiotic and well as biotic mechanisms. For example, no till farming practices physically reduce transport of sediment-bound P into nearby waterbodies and specialized wastewater ...
openaire   +2 more sources

Quantitative estimation of the role of denitrifying phosphate accumulating organisms in nutrient removal

, 2003
It has been reported that a proportion of polyphosphate-accumulating organisms (PAOs) can denitrify or utilize nitrate as an electron acceptor. The usage of denitrifying-PAO (DN-PAO) can relieve the competition for COD between denitrification and ...
T. Mino, H. Satoh, T. Shoji
core   +1 more source

Distinctive denitrifying capabilities lead to differences in N2O production by denitrifying polyphosphate accumulating organisms and denitrifying glycogen accumulating organisms

, 2016
This study aims at investigating the denitrification kinetics in two separate enriched cultures of denitrifying polyphosphate accumulating organisms (dPAO) and denitrifying glycogen accumulating organisms (dGAO) and compare their N2O accumulation ...
Ribera Guàrdia, Anna, Oehmen, Adrian, Pijuan i Vilalta, Maite, Carvalheira, Monica, Marques, Ricardo, Arangio, Corrado   +5 more
core   +1 more source

Quorum sensing involved in regulating biological phosphorus removal under two different addition modes of polystyrene microplastics

Chemical Engineering Journal Advances
Microplastics (MPs) impair wastewater treatment by lowering pollutant removal and accumulating in systems, yet their effects on microbial metabolic interactions remain largely unexplored. This study investigated the effects of polystyrene MPs (PS-MPs) on
Shang Wang, Mojun Wang, Jiaqiao Qi, Wen Li, Bin Xue, Xi Zhang, Jingfeng Wang   +6 more
doaj   +1 more source

Filamentous members of cluster III Defluviicoccus have the in situ phenotype expected of a glycogen-accumulating organism in activated sludge

, 2010
The in situ ecophysiology of alphaproteobacterial filamentous Cluster III Defluviicoccus present in enhanced biological phosphorus removal (EBPR)-activated sludge systems was evaluated using FISH-MAR and histochemical staining methods.
Seviour, Robert J., McIlroy, Simon J., Nittami, Tadashi, Simon J. McIlroy, Tadashi Nittami, Robert J. Seviour, Seviour, Elizabeth M., Elizabeth M. Seviour   +7 more
core   +1 more source

Impacts of multiwalled carbon nanotubes on nutrient removal from wastewater and bacterial community structure in activated sludge.

PLoS ONE, 2014
BackgroundThe increasing use of multiwalled carbon nanotubes (MWCNTs) will inevitably lead to the exposure of wastewater treatment facilities. However, knowledge of the impacts of MWCNTs on wastewater nutrient removal and bacterial community structure in
Reti Hai, Yulin Wang, Xiaohui Wang, Zhize Du, Yuan Li   +4 more
doaj   +1 more source

Elucidating further phylogenetic diversity among the Defluviicoccus-related glycogen-accumulating organisms in activated sludge

, 2009
Glycogen-accumulating organisms (GAO) are thought to out-compete the polyphosphate-accumulating organisms (PAO) in activated sludge communities removing phosphate (P).
Seviour, Robert J., McIlroy, Simon, Robert J. Seviour, Simon McIlroy   +3 more
core   +1 more source

Enhanced Nutrients Removal and Microbial Mechanisms in a Pilot-Scale Anaerobic-Oxic-Anoxic (A/O/A) System: Synergistic Roles of Denitrifying Polyphosphate Accumulating Organisms and Endogenous Denitrifiers

Chemical engineering research & design, 2023
Ben-Zhou Gong, Kai Duan, Shi Chen, Ying-Mu Wang   +3 more
semanticscholar   +1 more source

Functional and structural characterization of polyphosphate-accumulating organisms in aerobic granular biofilms

, 2023
The "Aerobic Granular Sludge" (AGS) technology for wastewater treatment is based on dense microbial biofilm in the form of granular aggregates that have an excellent settling property allowing high biomass concentrations in bioreactors. This promising biological treatment of wastewater is a cost-effective and land-saving alternative to the conventional
openaire   +2 more sources

Influence of dissolved oxygen on phosphorus removal by polyphosphate-accumulating organisms biofilm: performance and metabolic response

Biochemical engineering journal, 2023
Zhen Bi, Jing Wu, Yong Huang, Yang Pan
semanticscholar   +1 more source