Question 1

While designing the demineralisation plant what is considered as the weak acidic cation load?

Accepted Answer

A) alkaline hardness 
B) alkaline hardness+ ema 
C) ema 
D) silica 
A) alkaline hardness 
B) alkaline hardness+ ema 
C) ema 
D) silica

Question 2

What is the maximum allowable flow for backwash?

Accepted Answer

A) 20 m/hr 
B) 45 m/hr 
C) 60 m/hr 
D) 80 m/hr 
A) 20 m/hr 
B) 45 m/hr 
C) 60 m/hr 
D) 80 m/hr

Question 3

When is strong basic anion not necessary?

Accepted Answer

A) silica is nil 
B) co2 is nil 
C) fluroine is nil 
D) sulphate is nil 
A) silica is nil 
B) co2 is nil 
C) fluroine is nil 
D) sulphate is nil

While designing the demineralisation plant what is considered as the weak acidic cation load?

What is the maximum allowable flow for backwash?