Enhanced Coagulation and NOM Fractionation Study of a Typical Southern Water
典型南方水强化混凝有机物分级处理研究

Systematic studies on enhancing normal treatment processes were performed in order to remove aquatic organic matter economically and efficiently.Enhanced coagulation and polymer coagulant-aid coagulation were compared through jar tests and on-spot experiment(Pilot-scale and full-scale experiment).Fractionations of raw water and water after treatments of above two strategies were performed based on selective adsorption of resin DAX-8.It was found that matters causing UV absorbance at 254nm were well removed by above two treatments;removals of which could be achieved 90% or more.Hydrophobic bases and acids fractions were more removed under enhanced conditions with removals 66% and 35% respectively;while hydrophilic fraction could be better removed by about 45% using polymer coagulant aids.But the whole removals of the two strategies were almost equal.