Open AccessEvaluation of Particle Removal at Water Treatment Plants in Nova Scotia
Author(s) -
John D. Eisnor,
Kevin O’Leary,
Graham A. Gag
Publication year - 2001
Publication title -
water quality research journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 44
eISSN - 2408-9443
pISSN - 1201-3080
DOI - 10.2166/wqrj.2001.007
Subject(s) - turbidity , nova scotia , raw water , particle (ecology) , water treatment , particle counter , environmental science , filtration (mathematics) , water quality , ultrafiltration (renal) , microfiltration , particulates , environmental engineering , pulp and paper industry , chemistry , chromatography , membrane , ecology , engineering , geology , biology , oceanography , mathematics , organic chemistry , aerosol , biochemistry , statistics
The physical removal of colloidal particles, microorganisms and other particulate material is an important objective for drinking water utilities. Because of the low concentration of suspended material in drinking water, turbidity has traditionally been the main water quality parameter for assessing particle removal in water treatment. However, particle counting is becoming increasingly popular for process optimization in conventional plants and for monitoring membrane integrity in new microfiltration and/or ultrafiltration plants. The research describes a survey of particle removal at four water treatment plants in Nova Scotia. Turbidity and particle counts were analyzed in both raw and filtered water. The treatment processes of the four plants was compared using particle count data. The results indicate that particle counters are able to detect decreases in filter performance earlier than turbidimeters.
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