Obtaining Real-Time Kinetic Parameters on Ozone Decay from a Full-Scale Ozone Contactor Using the Axial Dispersion Reactor Model

Ozone decay kinetic parameters, including fast ozone demand ([D] 0 ), ozone decay rate constant (k D ), and rate constant for ozone reaction with ozone demand (k R ), are required for a numerical simulation targeting the design and operational optimization of an ozone contactor. The kinetic paramete...

Full description

Saved in:
Bibliographic Details
Published in:Ozone: science & engineering 2014-01, Vol.36 (1), p.100-109
Main Authors: Kim, Dooil, Cho, Jinwoo
Format: Article
Language:English
Subjects:
ADR Model
Computer simulation
Contactors
Decay
Demand
Dispersions
Hydrodynamics
Mathematical models
OCM Software
Ozone
Ozone Contactor
Ozone Decay
Reaction kinetics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ozone decay kinetic parameters, including fast ozone demand ([D] 0 ), ozone decay rate constant (k D ), and rate constant for ozone reaction with ozone demand (k R ), are required for a numerical simulation targeting the design and operational optimization of an ozone contactor. The kinetic parameters of ozone decay and dispersion number were obtained from a full-scale ozone contactor for the axial dispersion reactor model simulation. The sensitivity analysis showed that the influence of k R was minor and the constant 13 L mg −1 min −1 for k R was suitable for carrying out simulations for sand-filtered raw water without measuring it. Curve fitting with on-site ozone concentrations and the ADR simulation results using a trial-and-error method could successfully provide kinetic parameters on ozone decay (i.e., k D and [D] 0 ). Using these real-time kinetic parameters, we successfully predicted the CT, residual ozone, C. parvum log inactivation, and bromate formation. Compared to a method based on the CSTR in series, this method could provide more accurate CT and residual ozone for an ozone contactor with horizontal meandering flow and low dispersion number.
ISSN:0191-9512
1547-6545
DOI:10.1080/01919512.2013.836954