Redirecting methane for a novel biological nitrogen removal process using methanotrophic mixed culture in a sequential batch reactor

2021 ◽  
Vol 404 ◽  
pp. 126487 ◽  
Author(s):  
Danelle Bishoff ◽  
Ahmed AlSayed ◽  
Ahmed Fergala ◽  
Ahmed Eldyasti
Keyword(s):  
Mixed Culture ◽  
Nitrogen Removal ◽  
Batch Reactor ◽  
Biological Nitrogen Removal ◽  
Sequential Batch Reactor ◽  
Removal Process ◽  
Biological Nitrogen

Biological nitrogen removal in SBR bypassing nitrate generation accomplished by chlorination and aeration time control

2004 ◽  
Vol 49 (5-6) ◽  
pp. 295-300 ◽  
Author(s):  
Y. Peng ◽  
X. Song ◽  
C. Peng ◽  
J. Li ◽  
Y. Chen
Keyword(s):  
Nitrogen Removal ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Biological Nitrogen Removal ◽  
Nitrite Accumulation ◽  
Removal Process ◽  
Aeration Time ◽  
Time Control ◽  
The Cost ◽  
Biological Nitrogen

A novel control strategy for biological nitrogen removal with high nitrite built-up through chlorine dosage was studied. In the biological nitrogen removal process operated in a bench-scale sequencing batch reactor, dose of chlorine of 0.2 mg/l in the form of sodium hypochlorite was applied after the COD was depleted. The aerobic phase switched to an anoxic phase shortly after the ammonium was completely biotically oxidized. Nitrite accumulation was stably achieved which was attributed to the chlorination and the lag-time of nitrification. With the time control, stable 100% conversion of nitrite could also be sustained even under the absence of chlorine for at least 20 days. The nitrite oxidizer should have been killed rather than been suppressed in this study. For engineering applications, the advantages of the nitrification/denitrification via nitrite can compensate the cost of chlorine dosage. Combined with the aeration time control, it is feasible to apply chlorination in a biological nitrogen removal process in SBRs.

Organic carbon bioavailability: is it a good driver to choose the best biological nitrogen removal process?

2021 ◽  
pp. 147390
Author(s):  
Gabriela Bonassa ◽  
Alice Chiapetti Bolsan ◽  
Camila Ester Hollas ◽  
Bruno Venturin ◽  
Daniela Candido ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Nitrogen Removal ◽  
Biological Nitrogen Removal ◽  
Removal Process ◽  
Biological Nitrogen

scholarly journals Biological Nitrogen Removal in a Photosequencing Batch Reactor with an Algal-Nitrifying Bacterial Consortium and Anammox Granules

2016 ◽  
Vol 3 (4) ◽  
pp. 175-179 ◽  
Author(s):  
Nathan D. Manser ◽  
Meng Wang ◽  
Sarina J. Ergas ◽  
James R. Mihelcic ◽  
Arnold Mulder ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
Batch Reactor ◽  
Bacterial Consortium ◽  
Biological Nitrogen Removal ◽  
Biological Nitrogen
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