Assessment of suspended solids concentration in highway runoff and its treatment implication
2006 (English)In: Environmental technology, ISSN 0959-3330, Vol. 27, no 9, 945-950 p.Article in journal (Refereed) Published
It is understood that the major pollution from storm water is related to the content of particulate matter. One treatment practice is based on the first flush, i.e. detention of the initial part of the runoff that is considered to contain the highest concentrations of pollutants, This study has evaluated the concentration of total suspended solids in 30 consecutive runoff events during the winter season for an area of 6.7 hectares. A six-lane highway (E4) that has an annual average daily traffic load of 120,000 dominates the area and road de-icing salt (NaCl) and studded tires were in regular use during the studied period. The effluent standard for wastewater of 60 mg TSS per litre applied in EU was used to assess the treatment requirement of storm water. In only two of the events the event mean concentration was below 60 mg V. In four runoff events a partial event mean concentration below 60 mg l(-1) was found, in 26 %, 12 %, 11 %, and 2 % respectively of the runoff volume. This would suggest that a capture of the initial part of the runoff for subsequent treatment is less applicable in this type of urban watershed.
Place, publisher, year, edition, pages
2006. Vol. 27, no 9, 945-950 p.
discharge value; event mean concentration; first flush; storm water; winter
Other Environmental Engineering
IdentifiersURN: urn:nbn:se:kth:diva-5521DOI: 10.1080/09593332708618710ISI: 000241916300001PubMedID: 17067120ScopusID: 2-s2.0-33750561517OAI: oai:DiVA.org:kth-5521DiVA: diva2:9914
QC 20100709. Uppdaterad från Accepted till Published 20100709.2006-03-222006-03-222012-02-20Bibliographically approved