Partitioning behavior of PCBs between the dissolved and adsorbed phases suggested that Di-CBs were the dominant isomers (>70%) and more than 89.8% of them was adsorbed on the particles and sludge.
The total removal efficiency of ∑209 PCBs was only 23.2% throughout the whole treatment process.
A weak correlationwas obtained between the individual PCB concentration and their log