Nitrous oxide emissions and dissolved oxygen profiling in a full-scale nitrifying activated sludge treatment plant

2013 ◽  
Vol 47 (2) ◽  
pp. 524-534 ◽  
Author(s):  
Amina Aboobakar ◽  
Elise Cartmell ◽  
Tom Stephenson ◽  
Mark Jones ◽  
Peter Vale ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Dissolved Oxygen ◽  
Activated Sludge ◽  
Treatment Plant ◽  
Full Scale ◽  
Nitrous Oxide Emissions ◽  
Sludge Treatment

scholarly journals Nitrous oxide emissions from an intermittent aeration activated sludge system of an urban wastewater treatment plant

Química Nova ◽  
2013 ◽  
Vol 36 (1) ◽  
pp. 16-20 ◽  
Author(s):  
William Z. de Mello ◽  
Renato P. Ribeiro ◽  
Ariane C. Brotto ◽  
Débora C. Kligerman ◽  
Andrezza de S. Piccoli ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Nitrous Oxide Emissions ◽  
Intermittent Aeration ◽  
Urban Wastewater ◽  
Activated Sludge System ◽  
Urban Wastewater Treatment

Methane Emissions from Aerated Zones in a Full-Scale Nitrifying Activated Sludge Treatment Plant

2013 ◽  
Vol 225 (1) ◽  
Author(s):  
Amina Aboobakar ◽  
Mark Jones ◽  
Peter Vale ◽  
Elise Cartmell ◽  
Gabriela Dotro
Keyword(s):  
Activated Sludge ◽  
Treatment Plant ◽  
Methane Emissions ◽  
Full Scale ◽  
Sludge Treatment

Full-scale control of Mycolata foam by FEX-120 addition

2010 ◽  
Vol 61 (10) ◽  
pp. 2443-2450 ◽  
Author(s):  
C. Kragelund ◽  
B. Nilsson ◽  
K. Eskilsson ◽  
A. M. Bøgh ◽  
P. H. Nielsen
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Wastewater Treatment Plant ◽  
No Reduction ◽  
Treatment Plant ◽  
Full Scale ◽  
Filamentous Bacteria ◽  
Gram Positive ◽  
Sludge Treatment ◽  
Scale Control

Foaming incidents in activated sludge treatment plants are a worldwide problem and occur on a regular basis in both municipal and industrial activated sludge treatment plants. Foaming is most often caused by excessive growth of filamentous bacteria, especially the gram-positive ones affiliated within the Actinobacteria, e.g. the branched Mycolata or CandidatusMicrothrix parvicella. Previous studies have shown that populations of Microthrix can be controlled by addition of certain polyaluminium compounds, but until now no effective chemicals have been identified to control other important foam formers such as the Mycolata. A new chemical (FilamentEx, FEX-120) was tested in full-scale in a Swedish wastewater treatment plant (WWTP) with immense foaming problems. In total, three different dosing events were carried out for more than 1 year. After only 8–17 weeks in each period, all foam had disappeared, and dosing of FEX-120 was stopped. Another 11 full-scale WWTPs in different countries were treated with FEX-120 because of severe Mycolata foaming on process tanks. In nine out of 11 plants, where the causative organisms were Gordonia or Skermania, a significant reduction of foam up to 100% was observed after treatment for approx. 10 weeks. In two WWTPs with unknown Mycolata organisms, no reduction was observed.

Spatial and daily variations of nitrous oxide emissions from biological reactors in a full-scale activated sludge anoxic/oxic process

2019 ◽  
Vol 127 (3) ◽  
pp. 333-339 ◽  
Author(s):  
Sijing Jia ◽  
Xiaoqiang Chen ◽  
Toshikazu Suenaga ◽  
Akihiko Terada ◽  
Susumu Ishikawa ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Activated Sludge ◽  
Full Scale ◽  
Nitrous Oxide Emissions ◽  
Daily Variations

Factors controlling nitrous oxide emissions from a full-scale activated sludge system in the tropics

2015 ◽  
Vol 22 (15) ◽  
pp. 11840-11849 ◽  
Author(s):  
Ariane C. Brotto ◽  
Débora C. Kligerman ◽  
Samara A. Andrade ◽  
Renato P. Ribeiro ◽  
Jaime L. M. Oliveira ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Activated Sludge ◽  
Full Scale ◽  
Nitrous Oxide Emissions ◽  
Activated Sludge System ◽  
The Tropics

scholarly journals Nitric oxide and nitrous oxide emissions from a full-scale activated sludge anaerobic/anoxic/oxic process

2016 ◽  
Vol 289 ◽  
pp. 330-340 ◽  
Author(s):  
Yayi Wang ◽  
Ximao Lin ◽  
Dong Zhou ◽  
Liu Ye ◽  
Haicheng Han ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Nitrous Oxide ◽  
Activated Sludge ◽  
Full Scale ◽  
Nitrous Oxide Emissions
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