Results 181 to 190 of about 651,211 (214)

Physical Enrichment of Polyphosphate‐Accumulating Organisms in Activated Sludge

Water Environment Research, 2002
Two methods that physically separate polyphosphate‐accumulating organisms (PAO) from other organisms in activated sludge were developed. The first method used 4'6‐diamidino‐2‐phenylindole dihydrochloride (DAPI) to selectively stain PAO. When excited with light at 340 nm, polyphosphate granules in DAPI‐stained cells fluoresce yellow while cells without ...
Chun-Hsiung, Hung, Jordan, Peccia, Julie L, Zilles, Daniel R, Noguera   +3 more
openaire   +2 more sources

Phosphorus removal performance, intracellular metabolites and clade-level community structure of Tetrasphaera-dominated polyphosphate accumulating organisms at different temperatures.

Science of the Total Environment, 2022
Tetrasphaera are polyphosphate accumulating organisms (PAOs) that play an important role in enhanced biological phosphorus removal (EBPR) from wastewater.
Hongjun Liu, W. Zeng, Qingan Meng, Zhi-Wei Fan, Yongzhen Peng   +4 more
semanticscholar   +1 more source

[Biological characteristics of denitrifying polyphosphate-accumulating organisms].

Huan jing ke xue= Huanjing kexue, 2012
A denitrifying phosphate-accumulating organisms (DNPAOs), which was called Q-hrb05, was isolated in the special medium from the anaerobic/aerobic/anoxic SBR reactor. Strain Q-hrb05 was identified by 16SrDNA gene analysis, and the accession number of 16SrDNA gene sequence of strain Q-hrb05 in GenBank was GU214826.
Fang, Ma, Fei-Fei, Yang, Ang, Li, Xiao, Cui, Qian, Zhang, Xin-Xin, Jiang, Li, Wei, Xiao-Xin, Zhang   +7 more
openaire   +2 more sources

Metagenomic insights into the global distribution and functional potentials of major polyphosphate-accumulating organisms (PAOs) in activated sludge wastewater treatment plants.

Water Research
Polyphosphate accumulating organisms (PAOs) are essential for phosphorus removal in wastewater treatment plants (WWTPs); however, their global distribution patterns and potential ecological functions across diverse activated sludge systems remain poorly ...
Zhen-Hui Yang, Yi Yang, D. Ning, Xiao-Min Fan, Yi-Qing Lv, Lin-Lan Zhuang, Lin-Wei Wu   +6 more
semanticscholar   +1 more source

Sulfide effects on the anaerobic metabolism of polyphosphate-accumulating organisms

Chemical Engineering Journal, 2017
Abstract Sulfate rich wastewaters can be generated from industry, use of seawater in urban environments, or by saline water infiltration into the sewerage. Under anaerobic conditions sulfate can be converted to sulfide, which may affect micro-organisms performing biological nutrient removal.
S. Saad, L. Welles, C. López-Vázquez, M. van Loosdrecht, D. Brdjanovic   +4 more
semanticscholar   +2 more sources

Achieving synchronous nitrogen and phosphorus removal by aerobic enrichment of electrotrophic/heterotrophic bacteria and denitrifying polyphosphate-accumulating organisms in repeatedly oxygen-rich microbial fuel cells.

Bioresource Technology
Realizing the enrichment of functional bacteria in microbial fuel cells (MFCs) for wastewater treatment holds substantial research significance. This study explored a novel method of repeatedly oxygen-rich anode environment to enrich electrotrophic ...
Xiao-Mei Jiang, Xiaojing Xiong, Ming Liu, Nuan Yang, Yi Gao, Ling Yao, Di Luo, Yunhui Lei   +7 more
semanticscholar   +1 more source

Economic benefits of carbon source selection for polyphosphate-accumulating organisms in enhanced biological phosphorus removal.

Environmental Research
Despite the wide application of enhanced biological phosphorus removal (EBPR) in wastewater treatment plants (WWTPs), the economic and environmental benefit of carbon source selection remains poorly understood.
Jing Yuan, Liping Chen, Xiaojing Xie, Hang Chen, Xiaodong Du, Acong Chen, Haixin Zheng, Fu Huang, Sijia Ji, Zemin Li, Xiang-Hui Liu, Zhi-Yi Deng, Chao-Hai Wei, Guang-Lei Qiu   +13 more
semanticscholar   +1 more source

Survival Strategies of Polyphosphate Accumulating Organisms and Glycogen Accumulating Organisms Under Conditions of Low Organic Loading

Bioresource Technology, 2014
Enhanced biological phosphorus removal (EBPR) is usually limited by organic carbon availability in wastewater treatment plants (WWTPs). Polyphosphate accumulating organisms (PAOs) and glycogen accumulating organisms (GAOs) were operated under extended periods with low organic carbon loading in order to examine its impact on their activity and survival.
Adrian Oehmen, Gilda Carvalho, Mónica Carvalheira   +2 more
exaly   +5 more sources

Involvement of the TCA cycle in the anaerobic metabolism of polyphosphate accumulating organisms (PAOs)

Water Research, 2009
For decades, glycolysis has been generally accepted to supply the reducing power for the anaerobic conversion of volatile fatty acids (VFAs) to polyhydroxyalkanoates (PHAs) by polyphosphate accumulating organisms (PAOs). However, the importance of the tricarboxylic acid (TCA) cycle has also been raised since 1980s.
Zhou, Yan, Pijuan, Maite, Zeng, Raymond J., Yuan, Zhiguo   +3 more
openaire   +5 more sources

Calibration of denitrifying activity of polyphosphate accumulating organisms in an extended ASM2d model

Water Research, 2010
This paper presents the results of an experimental study for the modelling and calibration of denitrifying activity of polyphosphate accumulating organisms (PAOs) in full-scale WWTPs that incorporate simultaneous nitrogen and phosphorus removal. The convenience of using different yields under aerobic and anoxic conditions for modelling biological ...
F, García-Usach, J, Ribes, J, Ferrer, A, Seco   +3 more
openaire   +2 more sources