Long-term effects of ZnO nanoparticles on nitrogen and phosphorus removal, microbial activity and microbial community of a sequencing batch reactor

2016 ◽  
Vol 216 ◽  
pp. 428-436 ◽  
Author(s):  
Sen Wang ◽  
Mengchun Gao ◽  
Zonglian She ◽  
Dong Zheng ◽  
Chunji Jin ◽  
...  
Keyword(s):  
Microbial Community ◽  
Microbial Activity ◽  
Zno Nanoparticles ◽  
Phosphorus Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Long Term Effects ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal

Assessment of nitrogen and phosphorus removal in an intermittently aerated sequencing batch reactor (IASBR) and a sequencing batch reactor (SBR)

2013 ◽  
Vol 68 (2) ◽  
pp. 400-405 ◽  
Author(s):  
Min Pan ◽  
Tianhu Chen ◽  
Zhenhu Hu ◽  
Xinmin Zhan
Keyword(s):  
Phosphorus Removal ◽  
Suspended Solids ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Ammonium Nitrogen ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
P Release ◽  
Removal Efficiencies ◽  
Biological Nitrogen

Biological nitrogen and phosphorus removal was investigated in an intermittently aerated sequencing batch reactor (IASBR) and a sequencing batch reactor (SBR). The removal efficiencies of ammonium-nitrogen (NH4+-N) were 100% in both reactors in steady operation state. The total nitrogen (TN) removal efficiencies were 90.4% in the IASBR and 79.3% in the SBR, while the total phosphorus (TP) removal efficiencies were 88.8% in the IASBR and 82.3% in the SBR. The efficiencies of simultaneous nitrification and denitrification (SND) were 90.4% in the IASBR and 79.3% in the SBR, indicating that the IASBR was more efficient than the SBR in SND. The sludge in the IASBR had a P release capability of 16.6 mg P/g VSS (volatile suspended solids) but only 7.5 mg P/g VSS in the SBR.

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