RO and DM Plant Operator Interview Questions and Answers

DM plant stands for Demineralization plant, which is used to remove minerals and salts from water through ion exchange process.

• DM plant is used to produce demineralized water for various industrial processes.

• It consists of ion exchange resin beds to remove minerals and salts from water.

• The process involves cation exchange for removal of positively charged ions and anion exchange for removal of negatively charged ions.

• DM plant is commonly used in power plants, pharmaceutical i...read more

A flow diagram of an RO plant shows the process of water purification through reverse osmosis.

• The feed water enters the RO plant and passes through a pre-treatment system to remove impurities.

• The water is pressurized and forced through a semi-permeable membrane, separating clean water from contaminants.

• The clean water is collected as product water, while the concentrated contaminants are discharged as reject water.

• The product water may undergo post-treatment before being stor...read more