Wastewater treatment by physical method is to use a physical principle to eliminate or remove to remove impurities from waste water, especially the water insoluble impurities.
Wastewater treatment by physical methods is to use physical principles. To prevent or eliminate the impurities from the water. The insoluble impurities.
Wastewater treatment by physical method is the use of physical principles To get rid of or eliminate remove dirt from wastewater. The insoluble impurities