Normal values of overflow rate for plain sedimentation tank using coagulants, is
(A) 750 to 1000 litres/hr/m2
(B) 1000 to 1250 litres/hr/m2
(C) 1250 to 1500 litres/hr/m2
(D) 1500 litres/hr/m
(A) 750 to 1000 litres/hr/m2
(B) 1000 to 1250 litres/hr/m2
(C) 1250 to 1500 litres/hr/m2
(D) 1500 litres/hr/m