Optimisation of reaction conditions of particle aggregation in water purification – back to basics

Abstract

Basic types of pollutants in surface waters and methods for their removal are reviewed. Guidelines are provided for selecting the most effective hydrolysing destabilisation reagent (coagulant) for a particular quality surface water, which is polluted with different types of impurities, and optimising the reaction conditions under which its purification takes place.

Key words: mineral impurities, natural organic matter (NOM), natural biological materials (NBM), aggregation stability, aggregation destabilisation, optimum dosage, optimised reaction conditions, optimised dosage and optimised reaction pH

Water SA Vol.31(1) 2005: 62-72