Cristin-resultat-ID: 1574772
Sist endret: 21. mars 2018, 20:12
Resultat
Poster
2018

Diurnal patterns and removal of selected elements in two Norwegian wastewater treatment plants with significant industrial loading

Bidragsytere:
  • Julia Farkas
  • Fabio Polesel
  • Marianne Steinsvik Kjos og
  • Andy Booth

Presentasjon

Navn på arrangementet: Norwegian Environmental Toxicology Symposium
Sted: Svalbard
Dato fra: 14. mars 2018
Dato til: 16. mars 2018

Om resultatet

Poster
Publiseringsår: 2018

Beskrivelse Beskrivelse

Tittel

Diurnal patterns and removal of selected elements in two Norwegian wastewater treatment plants with significant industrial loading

Sammendrag

Wastewater treatment plants (WWTP) that collect industrial and household discharges can be a significant source of pollutants to the environment. In this study, we investigated influent patterns and removal of selected elements in two full-scale WWTPs, Ladehammeren (LARA) and Høvringen (HØRA) in Trondheim, Norway. Both WWTPs have significant industrial loading contributions (up to 40% in LARA). The WWTP employ preliminary and primary treatment steps, including chemically aided flocculation, and discharge directly into Trondheimsfjord. In a 7 day sampling campaign, 24 h composite samples of influent and effluent wastewater as well as sludge samples were taken to determine influent concentrations and removal of selected elements including Al, P, S, Cr, Mn, Fe, Ni, Cu, Zn, As, Cd, Ba, Gd and Pd. To study release patterns and gain information about potential sources such as industrial discharges, we determined and modelled diurnal variations of elemental concentrations in 8 h composite samples covering morning, evening and night discharges. Element concentrations in 24 h composite influent samples were highest for S>P and Al and lowest for Cd0.8 in LARA, R2>0.7 HØRA). Correlations of TSS with Cu, Cr, As, Cd, and Pb were more pronounced in HØRA than in LARA, which can potentially be attributed to the higher industrial loading contributions in LARA. Enrichment factors were high for P>Cu>Zn>Cd>As, and were above 10 for Cr and Ni in biosolids, indicating anthropogenic sources for these elements. Several elements also occurred as nano- and micron-sized particles.

Bidragsytere

Julia Farkas

  • Tilknyttet:
    Forfatter
    ved Klima og miljø ved SINTEF Ocean

Fabio Polesel

  • Tilknyttet:
    Forfatter

Marianne Steinsvik Kjos

  • Tilknyttet:
    Forfatter
    ved Bioteknologi og nanomedisin ved SINTEF AS

Andrew Booth

Bidragsyterens navn vises på dette resultatet som Andy Booth
  • Tilknyttet:
    Forfatter
    ved Klima og miljø ved SINTEF Ocean
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