LEGEND OF CIVIL

There are four  main steps that have been practiced over the year Preliminary treatment Primary treatment Secondary treatment (or biological treatment) Tertiary treatment The above four steps are sufficient to treat the wastewater. Preliminary treatment involves separating the floating impurities (like Wood, dead body, plastics, etc) from the wastewater To remove these types of impurities we use large size of screens and the process is called screening .   After the screening process wastewater passes through the grid chamber. Grit chambers are used to remove grit present in the wastewater like gravel , sand, broken glass , fragments of metal, and inorganic solids. It prevents damage to the pumps, and to prevents their accumulation in sludge digesters. Primary treatment In primary treatment, we have to remove fine small particle that is silt that couldn't extract from about process. to remove the silt particle we are going to use a sedimentation tank  Feature of sedimen...