The process of removing organic matter from sewage water is known as [[1]] treatment. 

The process of removing organic matter from sewage water is known as Sewage treatment.

Majorly, four methods of sewage water treatment are followed - physical, biological, chemical, and sludge water treatment. 

• Physical Treatment: This method involves the use of physical processes to remove solids and other contaminants from wastewater. Examples of physical processes include screening, sedimentation, and filtration.
• Biological Treatment: This method uses microorganisms such as bacteria, protozoa, and fungi to break down organic matter in wastewater. 
• Chemical Treatment: This method involves the use of chemicals such as coagulants, flocculants, and disinfectants to remove impurities from wastewater. 
• Sludge Treatment: This method involves the treatment of the solid waste (sludge) generated during the wastewater treatment process. Sludge treatment typically involves dewatering, stabilization, and disposal.                                                                                                                
• By following these methods, the wastewater is disinfected from all the sewage materials and converted into treated water that is safe for both human usage and the environment.