A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modeling Ozone Mass Transfer in Reclaimed Wastewater
Ozone mass transfer in reclaimed water was evaluated at pilot scale to determine mass‐transfer characteristics and reaction kinetics and to assess the use of oxygen as a surrogate to measure this process. Tests were conducted in a 40‐L/min pilot plant over a 3‐year period. Nonsteady‐state mass‐transfer analyses for both oxygen and ozone were performed for superficial gas flow rates ranging from 0.13m/min to 0.40m/min. The psi factor, which is the ratio of volumetric mass‐transfer coefficients of ozone to oxygen, was determined. The decrease in oxygen transfer rate caused by contaminants in reclaimed water was only 10 to 15% compared to tap water. A simple mathematical model was developed to describe transfer rate and steady state ozone concentration. Ozone decay was modeled accurately as a pseudo first‐order reaction between ozone and ozone‐demanding materials.
Modeling Ozone Mass Transfer in Reclaimed Wastewater
Ozone mass transfer in reclaimed water was evaluated at pilot scale to determine mass‐transfer characteristics and reaction kinetics and to assess the use of oxygen as a surrogate to measure this process. Tests were conducted in a 40‐L/min pilot plant over a 3‐year period. Nonsteady‐state mass‐transfer analyses for both oxygen and ozone were performed for superficial gas flow rates ranging from 0.13m/min to 0.40m/min. The psi factor, which is the ratio of volumetric mass‐transfer coefficients of ozone to oxygen, was determined. The decrease in oxygen transfer rate caused by contaminants in reclaimed water was only 10 to 15% compared to tap water. A simple mathematical model was developed to describe transfer rate and steady state ozone concentration. Ozone decay was modeled accurately as a pseudo first‐order reaction between ozone and ozone‐demanding materials.
Modeling Ozone Mass Transfer in Reclaimed Wastewater
Jiang, Pan (author) / Chen, Hsiao‐Ting (author) / Babcock, Roger W. (author) / Stenstrom, Michael K. (author)
Water Environment Research ; 81 ; 57-68
2009-01-01
12 pages
Article (Journal)
Electronic Resource
English
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