Q. Thermal treatment methods used to remove impurities like:
✅ Correct Answer: (A)
dissolved carbon dioxide and other gases
Explanation: thermal treatment method involves distillation and derative heating of feed water. during distillation water is evaporated then condensed and collected. during derating heating water is broken up into fine droplets and heated to produced vapour within the deaerator. during these process carbon dioxide and other days of devices separated from feet water.