Biochar efficiently removes recalcitrant pharmaceuticals from wastewater

Sammanfattning

This study investigated the potential of biochar as a filter medium for removal of pharmaceutically active compounds (PhACs) and wastewater macro-pollutants in on-site wastewater treatment systems. Removal of carbamazepine among other selected PhACs was investigated over 22 weeks experiment in four treatments: biochar (BC) with active and inactive biofilm (BC-active-biofilm, BC-inactive-biofilm), biochar without biofilm for adsorption only (BC-no-biofilm) and sand with active biofilm (Sand-active-biofilm). Carbamazepine removal in BC-no-biofilm (98%) was high due to adsorption, while nonexistent removal was observed in Sand-active-biofilm, revealing low biodegradability of carbamazepine. Removal of carbamazepine in BC-active-biofilm was stable (>98%), while it declined with time in BC-inactive-biofilm. In conclusion, biochar is a promising filter material supporting active biofilm and adsorption for the removal of PhACs in on-site wastewater treatment systems.

Publicerad i

Titel: S2SMALL2017 International IWA conference on sustainable solutions for small water and wastewater treatment systems - Book of proceedings

Konferens

S2SMALL2017 International IWA conference on sustainable solutions for small water and wastewater treatment systems

SLU författare

• Dalahmeh, Sahar

  • Institutionen för energi och teknik, Sveriges lantbruksuniversitet
    

• Ahrens, Lutz

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

• Gros Calvo, Meritxell

  • Institut Català de Recerca de l'Aigua (ICRA)

• Wiberg, Karin

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

• Pell, Mikael

  • Institutionen för molekylära vetenskaper, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Annan miljöbioteknik

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/89241