1100Chemical EngineeringMedium
The purpose of adding Na2CO3 to water of low alkalinity is to________?
AIncrease the softening capacity of zeolite
BFacilitate easy regeneration of zeolite
CAll A, B. and C.
DPermit the use of alum as a coagulant
Correct answer
D. Permit the use of alum as a coagulant
Explanation
The correct answer is Permit the use of alum as a coagulant.