title: Erratum: Water Science and Technology 72 (11), 2034-2044: A downflow hanging sponge (DHS) reactor for faecal coliform removal from an upflow anaerobic sludge blanket (UASB) effluent, Rosa Elena Yaya Beas, Katarzyna Kujawa-Roeleveld, Jules B. van Lier and Grietje Zeeman, doi: 10.2166/wst.2015.427.