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Water quality improvement in a small stormwater detention pond

Thomas J. R. Pettersson (Institutionen för vattenförsörjnings- och avloppsteknik)
Water Science and Technology Vol. 38 (1998), 10, p. 115-122.
[Artikel, refereegranskad vetenskaplig]

The aim of this study was to investigate a small open detention pond predominantly receiving stormwater drainage from a highway. The results showed a difference in pollutant removal characteristics. Particle-associated pollutants were effectively removed during storm events as indicated by EMC (Event Mean Concentrations) while dissolved pollutants were not effectively removed. Outflow pollutant loads followed linear profiles when seven consecutive storm events were represented as cumulative graphs. PEMC's (Partial EMC's) during a storm event showed an association between the specific surface area of small particles and lead content. A detention pond should be designed according to capacity to detain the complete storm volume, thus avoiding short-circuiting of the pond by pollutants.

Nyckelord: Stormwater, detention pond, pollutant removal, heavy metals, TSS, PEMC



Denna post skapades 2007-09-10.
CPL Pubid: 47526

 

Institutioner (Chalmers)

Institutionen för vattenförsörjnings- och avloppsteknik (1955-2000)

Ämnesområden

Byggnadsteknik
Vattenteknik
Miljöteknik

Chalmers infrastruktur