The settling velocity of a particle in a sedimentation tank depends on__________________?
For a given discharge, the efficiency of sedimentation tank can be increased by______________?
The detention period in coagulation tanks is usually kept as_______________?
The chemical most commonly used to increase speed of sedimentation of sewage is_______________?
The rate of filtration in slow sand filters in million litres per day per hectare is about_____________?
Air binding phenomena in rapid sand filters occur due to_________________?
The phenolic compounds in public water supply should not be more than_______________?
The maximum discharge of a tube-well is about_________________?
Ground water is usually free from________________?
Standard EDTA (ethylene diamine tetra acetic aciD. solution is used to determine the_______________?
