Pilot-scale investigation on the feasibility of simultaneous nitrification and denitrification (SND) in a continuous flow single-stage membrane bioreactor

2019 ◽  
Vol 32 ◽  
pp. 100995 ◽  
Author(s):  
Eduardo Lucas Subtil ◽  
Marina Victoretti Silva ◽  
Bruna Araújo Lotto ◽  
Mércia R. Domingues Moretto ◽  
José Carlos Mierzwa
Keyword(s):  
Continuous Flow ◽  
Membrane Bioreactor ◽  
Pilot Scale ◽  
Single Stage ◽  
Simultaneous Nitrification And Denitrification ◽  
Nitrification And Denitrification

Simultaneous nitrification and denitrification via nitrite in a pilot-scale modified anaerobic-anoxic-oxic reactor

2015 ◽  
Vol 57 (42) ◽  
pp. 19609-19618
Author(s):  
Jiashun Cao ◽  
Jianming Cai ◽  
Chao Li ◽  
Zhen Zhang ◽  
Yusheng Li ◽  
...  
Keyword(s):  
Pilot Scale ◽  
Simultaneous Nitrification And Denitrification ◽  
Nitrification And Denitrification

scholarly journals Removal of nitrogen and organic matter in a submerged-membrane bioreactor operating in a condition of simultaneous nitrification and denitrification

2016 ◽  
Vol 11 (2) ◽  
pp. 304
Author(s):  
Izabela Major Barbosa ◽  
José Carlos Mierzwa ◽  
Ivanildo Hespanhol ◽  
Eduardo Lucas Subtil
Keyword(s):  
Organic Matter ◽  
Membrane Bioreactor ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Membrane System ◽  
Ammonia Nitrogen ◽  
Simultaneous Nitrification And Denitrification ◽  
Removal Efficiencies ◽  
Nitrification And Denitrification ◽  
System Operating

This study evaluated the removal of nitrogen and organic matter in a membrane bioreactor system operating in a condition of simultaneous nitrification and denitrification controlled by intermittent aeration. A submerged-membrane system in a bioreactor was used in a pilot scale to treat domestic wastewater. The dissolved oxygen concentration was maintained between 0.5 and 0.8 mg L-1. The concentration of the mixed liquor suspended solids (MLSS) in the system ranged from 1 to 6 g L-1. The system efficiency was evaluated by the removal efficiency of organic matter, quantified by Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5) and Total Organic Carbon (TOC). Nitrogen removal was assessed by quantifying Total Kjeldahl Nitrogen (TKN) and ammonia nitrogen. During the system start-up, the removal efficiencies of COD and NTK were around 90% and 80%, respectively. After the simultaneous nitrification and denitrification (SND) conditions were established, the removal efficiencies of COD and NTK were 70% and 99%, respectively. These results showed that sewage treatment with the membrane bioreactor (MBR) system, operating with simultaneous nitrification and denitrification conditions, was able to remove organic matter and promote nitrification and denitrification in a single reactor, producing a high-quality permeate.

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