Sewage purification is performed by

What is called the purification method of dirty water in urban areas by municipality ? (A) Water treatment (B) Sewage treatment (C) Dirty Water treatment (D) Water purification

During sewage treatment anaerobic sludge digestion is performed and as a result biogas is produced. The components of biogas are:-

Sewage contains

Name the main method of purification employed for the purification of Cu , Zn and Al .

Name the main method of purification employed for the purification of Cu , Zn and Al .

Name the main method of purification employed for the purification of Cu , Zn and Al .

The purification of crude metals is referred to ______.