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环境科学学报 2009
Removal of particles through floc breakage and re-growth at low temperature
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Abstract:
The efficiency of coagulation and flocculation can be significantly improved through floc breakage and re-growth under appropriate conditions.At low temperature,the formation,breakage,and re-growth of flocs formed by kaolin with aluminum sulfate(alum')were investigated with PDA 2000 to explore the reversibility of broken flocs.There was a full re-growth of flocs when they were coagulated by charge neutralization;but when coagulated by sweep coagulation,the floc break-up process was distinctly irreversible.T...