Removal of the organic surface layer in combined sewer sediment using a flushing gate

Autor:	L. Felouzis, Mathieu Ahyerre, D. Laplace, Ghassan Chebbo, C. Oms, J Lemasson
Rok vydání:	2003
Předmět:	Hydrology Pollutant Pollution Environmental Engineering media_common.quotation_subject First flush Environmental engineering Sediment medicine Environmental science Flushing Combined sewer Sanitary sewer Surface layer medicine.symptom Water Science and Technology media_common
Zdroj:	Water Science and Technology. 47:19-26
ISSN:	1996-9732 0273-1223
Popis:	Recent research identified the different sources of pollution of wet weather Combined Sewers Overflows (CSOs): it appeared that the deposits in sewers, and especially an organic layer situated at the water-sediment interface, may contribute 40-70% to the total pollution load of CSOs. Using the cyclic flush Hydrass gate, we generated increased water flows during dry weather. The effects of flushing the deposits have been analysed: the eroded particles sampled during the first flush wave show pollutant characteristics similar to characteristics measured in the organic layer. The organic layer that has formed on the surface of deposits can thus be washed off before rainstorms occur using the cyclic flushing technique.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1a52c0080e2abe036e521a65c5f23917 https://doi.org/10.2166/wst.2003.0211 Zobrazit plný text záznamu