THE ROLE OF PARTICLE CHARACTERIZATION IN ADVANCED WASTE-WATER TREATMENT

This article discusses the application of particle size analysis to be tter understanding and improved design of the direct filtration proces s (no chemical pretreatment) of secondary municipal effluents. Particl e size distributions (PSD) of various plant effluents are described an d interpreted. Results from laboratory experiments are presented, poin ting out a major divergence of effluent filtration from classical wate r filtration theory. A mathematical model introducing the PSD function into a 'classical' filtration model is presented exemplifying PSD app lication to improved wastewater filtration.