fig6
From: Microplastic removal by coagulation: a review of optimizing the reaction conditions and mechanisms
Figure 6. SEM images of flocs obtained by composite systems. (A)-(D) Changes in floc appearance for the same solutions treated with increasing alum dose[51]; (E)-(G) The morphology of the inner structure of different flocs in composite pollutants system[15]; (H) and (I) Agglomeration adsorption in both PAC-PS system and FeCl3-PS system[48]. PAC: Poly aluminum chloride; PS: polystyrene; SEM: scanning electron microscopy.
