Inoculation Improves Microbial Manganese Removal during the Start-Up of Rapid Sand Filters. - Haukelidsaeter S; Boersma AS; Behrends T; Lenstra WK; van Helmond NAGM; Piso L; Schoonenberg F; van der Wielen PWJJ; van Kessel MAHJ; Lücker S; Slomp CP (ACS ES&T water, 2025)