In the treatment of waste water discharge, which treatment stage involves biological treatment HomeWater Pollution MCQsIn the treatment of waste water discharge, which treatment stage involves biological treatmentwater pollution mcqsQ. In the treatment of waste water discharge, which treatment stage involves biological treatmentPrimary treatmentSecondary treatmentTertiary treatmentReverse osmosis stageAnswer: Secondary treatment
The central pollution control board and the department of ocean and environment has established __________ stations over the entire coastal line of the country
