The results and discussion has been supplemented in section 3.1. Please see lines 180-185 in the revised manuscript.
1) was observed in Fig. 1(c). Why is the DO concentration of BAC-effluent sometimes higher than the Raw water. Please explain it in the manuscript. The reviewer suggests statistical analysis using a t-test (Raw water- BAC-Effluent and Raw water – BAC/UF-effluent). Point 6: Why the same trend of increase or decrease in graphs (Fig. 1) was observed in Fig. 1(c).