Twenty years' monitoring of Mèze stabilisation ponds: part II – removal of faecal indicators

Autor:	F. Brissaud, T. Andrianarison, Bernadette Picot, J.L. Brouillet
Rok vydání:	2005
Předmět:	Mediterranean climate Engineering Environmental Engineering business.industry Environmental engineering Microbiological quality Water quality business Effluent Water Science and Technology
Zdroj:	Water Science and Technology. 51:33-41
ISSN:	1996-9732 0273-1223
DOI:	10.2166/wst.2005.0421
Popis:	The WSP system serving Mèze and Poussan (French Mediterranean coast) was constructed in 1980 and enlarged and upgraded from 1994 to 1998. Water quality along the waste stabilisation pond to (WSP) system has been monitored over the years, thus allowing us to assess the influence of enlargement and upgrading works. A significant enhancement of the average microbiological quality of the effluent was observed, with respective E. coli and streptococci average abatements of 4.1 and 3.4 log. units. Former seasonal variations of microbiological removal have vanished. The contribution of the different ponds to the disinfection performance of the WSP system was analysed. A microbiological quality model was proposed to evaluate the die-off kinetics related to the different ponds and as a tool for the design and management of WSP systems. Though the relationships between die-off coefficients and environmental factors appeared somewhat frail, this modelling is considered a promising approach for the prediction of WSP microbiological performance.
Databáze:	OpenAIRE
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