TY - JOUR N2 - The effects of activated sludge sonication on floes surface properties and heavy metal uptake was investigated. Negative surface charge and specific surface area were estimated by correlation with dye adsorption whereas relative hydrophobicity was measured by adhesion to hexadecane. Experimental results show that ultrasound treatment leads to a simultaneous increase of specific surface area and availability of negatives and/or hydrophilic sites. Thus, fixation sites for heavy metal uptake are made free by sonication. Both increase of specific surface area and fixation sites availability leads to an increase of uptake of Cd(II). For Cu(II), organ.ie matter released in soluble phase during the treatment acts as a ligand and limits adsorption on floes surface. L1 - http://www.czasopisma.pan.pl/Content/123166/PDF-MASTER/26_AE_VOL_34_3_2008_Laurent_Impact.pdf L2 - http://www.czasopisma.pan.pl/Content/123166 PY - 2008 IS - No 3 EP - 238 A1 - Laurent, Julien A1 - Casellas, M. A1 - Dagot, Christophe PB - Polish Academy of Sciences VL - vol. 34 DA - 13.05.2022 T1 - Impact of Activated Sludge Floes Properties After Sonication in Relation with Heavy Metal Uptake SP - 229 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/123166 T2 - Archives of Environmental Protection ER -