Question
Question: During primary treatment in a sewage treatment plant, the floating debris is removed by ……1…. . Ther...
During primary treatment in a sewage treatment plant, the floating debris is removed by ……1…. . Thereafter grit is remove by ……2…. In …..3 ….. tanks. All solids that settle are …..4…… while the supernatant is termed as …..5…..
A
2-Biological treatment, 4-Effluent
B
1-Sedimentation, 2-Chemical treatment
C
3-Primary settling, 5-Effluent
D
4-Flocs, 5-Chemical treatment
Answer
3-Primary settling, 5-Effluent