Hotel restraurant home work place etc. areas waste water treatment is done.
This treatment can be carried out by chemical, physical or biological means:
Chemical treatment is carried out by adding various chemicals in the mixing unit after the wastewater passes through the sedimentation pool and precipitation of these chemicals by reacting with the contaminants in the water.
Biological treatment is carried out by biodegradation of domestic or industrial wastewater with the help of various bacteria.
Physical treatment is the removal of grease and coarse wastes in the wastewater by mechanical processes without using any chemicals or bacteria, by means of gratings, oil scraper pallets and similar devices.