The floc recovery ability was in the following order: PAC–CBF > PAC alone > CBF–PAC. The flocculation mechanism of PAC was charge neutralization and enmeshment, meanwhile the negatively charged CBF added absorption and bridging effect.
The floc recovery ability was in the following order:PAC–CBF > PAC alone > CBF–PAC. The flocculation mechanism of PAC was charge neutralizationand enmeshment, meanwhile the negatively charged CBF added absorption andbridging effect.