From: Treatment performance comparison between regular O3–BAC and O3–BAC with rear sand filtration: verification in a full-scale study
SE
SF
PO
BAC
Total
Sand–O3–BAC
33.35
9.11
3.18
15.40
60.53
O3–BAC–sand
35.44
1.55
5.00
16.23
58.22