Article ID Journal Published Year Pages File Type
159268 Chemical Engineering Science 2005 10 Pages PDF
Abstract

To determine the oxygen mass transfer in clean water in biofilters, a method based on the follow up of the oxygen fraction in the off gas during the oxidation of sulphite in excess has been evaluated and applied to a pilot-scale unit (250 L, superficial gas velocity from 0 to 5.6×10-3mNs-1, superficial liquid velocity from 0 to 2.5×10-3ms-1). Tests performed on a two-phase reactor showed that, without any cobalt addition, standard oxygen transfer efficiencies (SOTE) obtained from the proposed method are not statistically different from those issued from the standardised method. A relationship has been proposed to express SOTE values as a function of the conductivity, and the influence of the gas and liquid velocities on SOTE and kLakLa has been investigated.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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