All impurities are oxidised into the _________ and ___________ in the biological oxidation process
a) Oxygen and water b) Carbondioxide and water c) Nitrogen and water d) Chlorine an water
a) Oxygen and water b) Carbondioxide and water c) Nitrogen and water d) Chlorine an water
a) 1-4Hours b) 4-8Hours c) 8-16Hours d) 16-20Hours
a) Less than b) Higher than c) Equal d) Nearly equal
a) 0.04 to 600nm b) 0.08 to 500nm c) 0.1 to 600nm d) 0.2 to 500nm
a) Styrene di vinyl benzene b) Styrene c) Benzoyl peroxide d) Phenol
a) 100% b) 99% c) 98% d) 97%