Effect of Extracelluar Organic Matter and Natural Organic Matter on Coagulation
胞外分泌物和天然有机物对混凝的影响

Influence of EOM and NOM on removal of algae and turbidity was investigated.The result showed that EOM had both beneficial and harmful effects on coagulation,it hindered the charge neutrality of the flocculant.Zeta potential of algae decreased from-40.6 mV to-14.7 mV,only when the modified chitosan was added above 0.2 mg\5L~-1.But it became a coagulant aid when it combined with flocculant.The experiment indicated that turbidity removal would reach the peak efficiency(96%) with appropriate concentration of E...