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DESIGN AND PERFORMANCE OF SEPARATORS FOR THE TREATMENT OF HIGHWAY DRAINAGE
Author(s) -
Muhammad N.,
Wheatley A. D.,
Anderson A. R.
Publication year - 2004
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.2004.tb00540.x
Subject(s) - environmental science , surface runoff , particulates , pollutant , sump (aquarium) , hydraulics , environmental engineering , suspended solids , waste management , engineering , chemistry , ecology , organic chemistry , biology , aerospace engineering , wastewater
Laboratory work to improve the performance of storm‐water separators, to meet new Environment Agency and European standards, is described in this paper. Residence‐time distribution testing, using particulate and dissolved tracers, was used to study the hydraulics of separation. Oil‐separation efficiency and head‐loss analysis was used to develop additional final coalescing filters to reduce oil concentrations in the discharge to less than 5 mg/l. Field tests found lower oil, but greater metal, concentrations in runoff compared with those previously reported. It is suggested that improved separators could provide part of a multi‐barrier design to improve the sustainability of removal of priority pollutants in highway runoff.