The pH of industrial effluent can be controlled:
a. by the addition of acid
b. by the addition of alkaline
c. by the addition of water
d. by the use of settling ponds
e. by the addition of acid or alkaline as required
Answer: E
The pH of industrial effluent can be controlled:
a. by the addition of acid
b. by the addition of alkaline
c. by the addition of water
d. by the use of settling ponds
e. by the addition of acid or alkaline as required