water quality improvement. Environmental Engineering. coagulation. flokulácia. sedimentácia. filtration. oxidáciaHowe, Kerry J Principles of Water Treatment / aut. Kerry J Howe, David W Hand, John C Crittenden, Rhodes R Trussel, George Tchobanoglous. -- Hoboken: Wiley & Sons, 2012. -- 654 s. -- ISBN : 978-0-470-40538-3. Hand, David W.. Crittenden, John C.. Trussel, Rhodes R.. Tchobanoglous, George