Fig. 5From: Treatment performance comparison between regular O3–BAC and O3–BAC with rear sand filtration: verification in a full-scale studyMonth average of day-to-day total CODMn monitoring data of the finished water. RW raw water; sand–O3–BAC: regular O3–BAC; O3–BAC–sand O3–BAC with rear sand filtration (Based on the day-to-day monitoring data from drinking water treatment plant; sampling date: from May to Aug, 2014). The error bars represent mean ± S.DBack to article page