Title: Comparison of Enhanced Treatment of Micro-polluted Water by Enhanced Coagulation and Ozone Pre-oxidation
Abstract: The efficiency of conventional filtration is remarkably lowered when source water contains high content organic matter.Both enhanced coagulation and ozone pre-oxidation can enhance the filtration efficiency,however,the mechanisms of the two enhancement methods are different.In enhanced coagulation,small-particle turbidity,dissolved organic matter and UV254 are effectively removed by adsorption.And in ozone pre-oxidation,the filtration efficiency is enhanced by improving surface properties of particles with relatively larger size,and the structure of organic matter is changed,but only through cooperation with other separation processes(flocculation,sedimentation,filtration and so on),ozone pre-oxidation can remove contaminants effectively.In addition,the trihalomethane formation potential(THMFP) is increased after filtration under all the experimental conditions,in which ozone pre-oxidation has the lowest increase in THMFP.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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