Progressive impairment of the quality of natural waters and the increased demand for human consumption calls for stricter water potabilization operations~(1,2). Treatment of natural waters for potable uses has long been accomplished by using inorganic coagulants to remove turbidity (suspended solids, colloids), trace contaminants (metals) and colourcausing organics (humics). Coagulation-flocculation, sedimentation and sand filtration operations are typically used in the de-stabilisation, agglomeration and removal of the mentioned contaminants that pose threats to public health and/or affect the quality of distributed tap waters~2.
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