“Water treatment” is the process of removing some harmful substances in the water that are not needed for production and life through physical, chemical and biological means. It is a process of water conditioning, such as sedimentation, filtration, coagulation, flocculation, and corrosion inhibition and scale inhibition for a specific application. The effect of water treatment can be measured by water quality standards. The processing of raw water to meet the water quality requirements of finished water (domestic water, production water or wastewater).
The methods of water treatment include physical treatment and chemical treatment.