Quantification Of WwTW UV Dose Rates For Long Sea Outfalls By
Means Of Coastal Hydrodynamic Modelling
Author(s)
RA.Crowder, A. Nisbet, A. Harrington & R. Freestone
Abstract
Quantification of WwTW UV dose rates for
long sea outfalls by means of coastal
hydrodynamic modelling
RA.Crowder*, A. Nisbet*, A. Harrington^ & R. Freestone^
*Bullen Consultants, UK
^Yorkshire Water, Science and Regulation, UK
* Environment Agency, North East Region, UK
Abstract
Both the EC Bathing Water Directive and the EC Urban Wastewater Treatment
Directive have greatly influenced the treatment levels and requirements of
Wastewater Treatment Works (WwTW) that have intermittent and continuous
discharges to coastal areas. Over the past decade the requirements of these
Directives have been taken into account by Yorkshire Waters' Asset
Management Plans and 'Coastcare' programme and have resulted in the
upgrading and implementation of new WwTW.
Coastal hydrodynamic modelling has played a key role in developing
appropriate WwTW schemes. Calibrated and validated models have typically
been used to model the dispersion of nutrients and viral and bacteri
Keywords
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