a) Less pumping phases
b) More use of chemicals
a)What would be the advantage of placing softening before cascade aeration?
(Only one answer can be correct).
Low oxygen concentration /Less pumping phases /High ammonium concentration /Less carbondioxide removal during cascade aeration
b)
What would be the disadvantage of placing softening before cascade aeration?
More energy consumption/ More use of chemicals /More pellet production/ More maintenance
c)Which (one) water quality parameter is reduced by powdered activated carbon?
Ammonium /Nitrite/ Nitrate /Chloride /Total iron /Oxygen /Carbon dioxide Temperature/ Hardness/ pH /Pesticides
2 answers
hi I don't know the answers where can I found them please?/