Characterization of size, strength and structure of aluminum-polymer dual-coagulant flocs under different pH and hydraulic conditions

Preparation and Characterization of a Composite Coagulant: Polyferric Titanium Sulfate

“…The compact flocs formed at isoelectric point indicate that the charge neutralization is the primary mechanisms in the formation of compact flocs, inter-particles bridging and sweeping coagulation mechanism was the secondary factors. Thus, the opposite results are observed in our experiments (Rong et al 2013). The inconsistent conclusions with previous research suggest that apart from adsorption bridging and sweeping coagulation capability, the charge neutralization ability was prominent in PFTS coagulant.…”

“…Floc size was expressed by d 10 , d 50 , and d 90 . More detailed information was described by previous literature (Huang et al 2014a;Li et al 2014;Rong et al 2013).…”

Enhanced efficiency in HA removal by electrocoagulation through optimizing flocs properties: Role of current density and pH

“…The properties of flocs, such as size, structure and strength, have a significant effect on the subsequent separation process of sedimentation and/or filtration [13,14], and thus are crucial to the efficiency of both CC and EC process. The active coagulant species are in-situ and continually generated with the electrolytic oxidation of an appropriate anode, which differs from CC process in which metal salts are added by one time dosage.…”

Mn(VII)–Fe(II) pre-treatment for Microcystis aeruginosa removal by Al coagulation: Simultaneous enhanced cyanobacterium removal and residual coagulant control

“…A dual-coagulant approach, i.e., the combined use of different coagulants, has been proposed and demonstrated to enhance coagulation regardless of that two coagulants were dosed simultaneously or consecutively (Kuusik and Viisimaa, 1999;Wei et al, 2009;Jain et al, 2009;Rong et al, 2013). Dual Al and Fe coagulants showed better improvement in water treatment than each coagulant alone (Cheng et al, 2003).…”