Short-term biochemical oxygen demand (BODst) estimation using an oxygen uptake rate measurement method

2016 ◽  
Author(s):  
Piyarat Premanoch
Keyword(s):  
Oxygen Uptake ◽  
Biochemical Oxygen Demand ◽  
Uptake Rate ◽  
Measurement Method ◽  
Oxygen Uptake Rate ◽  
Oxygen Demand ◽  
Rate Measurement ◽  
Short Term

Real-time biomonitoring of oxygen uptake rate and biochemical oxygen demand using a novel optical biogas respirometric system

2021 ◽  
Vol 277 ◽  
pp. 111467
Author(s):  
Fida Hussain ◽  
Hye-Weon Yu ◽  
Kangmin Chon ◽  
Yong-Gu Lee ◽  
Heonseop Eom ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Real Time ◽  
Biochemical Oxygen Demand ◽  
Uptake Rate ◽  
Oxygen Uptake Rate ◽  
Oxygen Demand

A novel in situ probe for oxygen uptake rate measurement in mammalian cell cultures

2011 ◽  
Vol 28 (2) ◽  
pp. 581-586 ◽  
Author(s):  
Larissa Behr ◽  
Klaus Joeris ◽  
Mark Burnett ◽  
Thomas Scheper
Keyword(s):  
Oxygen Uptake ◽  
Mammalian Cell ◽  
Cell Cultures ◽  
Uptake Rate ◽  
Oxygen Uptake Rate ◽  
Rate Measurement ◽  
Mammalian Cell Cultures

Oxygen Uptake Rate Measurement Using Kalman Filter and PWM Control in Activated Sludge Systems

2019 ◽  
Vol 68 (11) ◽  
pp. 4493-4501 ◽  
Author(s):  
Francisco Jadilson dos Santos Silva ◽  
Sebastian Yuri C. Catunda ◽  
Carlos E. T. Dorea ◽  
Adrianus C. van Haandel ◽  
Helio Rodrigues dos Santos
Keyword(s):  
Kalman Filter ◽  
Oxygen Uptake ◽  
Activated Sludge ◽  
Uptake Rate ◽  
Oxygen Uptake Rate ◽  
Pwm Control ◽  
Rate Measurement ◽  
Activated Sludge Systems

Use of the Immediate Maximum Specific Oxygen Uptake Rate as an Activated Sludge Process Control Parameter

1992 ◽  
Vol 25 (1) ◽  
pp. 123-132 ◽  
Author(s):  
J. Y. Shamas ◽  
A. J. Englande
Keyword(s):  
Process Control ◽  
Oxygen Uptake ◽  
Activated Sludge ◽  
Chemical Oxygen Demand ◽  
Uptake Rate ◽  
Control Parameter ◽  
Oxygen Uptake Rate ◽  
Control Strategies ◽  
Oxygen Demand ◽  
Specific Oxygen Uptake Rate

The immediate maximum specific oxygen uptake rate (SOURim) was investigated as a potential process control parameter for the activated sludge system. Variability in effluent quality in terms of chemical oxygen demand correlated very well with the levels of SOURim at cell residence times of 3, 5, and 10 days. Transient response studied under batch growth conditions indicated a strong correlation between the SOURim, chemical oxygen demand, and the ribonucleic acid rates of change. The SOURim can therefore be used to qualitatively and quantitatively describe a given biomass thus making it a better suited parameter for use in process control strategies.

Inhibitory effects of non-ionic surfactants on the microbial activity of activated sludge system

2009 ◽  
Vol 60 (4) ◽  
pp. 1033-1039
Author(s):  
Ma D. Coello Oviedo ◽  
D. Sales Márquez ◽  
R. Rodriguez-Barroso ◽  
J. Ma Quiroga Alonso
Keyword(s):  
Oxygen Uptake ◽  
Activated Sludge ◽  
Microbial Activity ◽  
Dehydrogenase Activity ◽  
Uptake Rate ◽  
Oxygen Uptake Rate ◽  
Oxygen Demand ◽  
Ionic Surfactant ◽  
Complete Control ◽  
Specific Oxygen Uptake Rate

The purpose of the present work was to study the influence of a non-ionic surfactant, a nonylphenol with four ethoxylated units (NP4EO), on the activity of the microbial population present in a laboratory-scale activated sludge unit. Traditional control methods for this type of unit were used (measurement of suspended solids and chemical oxygen demand) as well as specific techniques for the measurement of bacterial activity (dehydrogenase activity and specific oxygen uptake rate) and the results were compared. It was shown that the Specific Oxygen Uptake Rate (SOUR) is the simplest and quickest way to carry out routine control of activated sludge activity, while measuring dehydrogenase activity provides more complete control. The results obtained indicated that there was no inhibition of microbial activity at a concentration of 5 ppm of NP4EO, which was not the case with a concentration of 10 ppm.

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