L1 /
9
CH3041
THE
RHINE
RHINE
TERTIARY TREATMENT
• Tertiary treatment is particularly
necessary
in Europe - in Paris 60% of the “drinking
water” is re-used!
in Europe - in Paris 60% of the “drinking
water” is re-used!
2o
treated
water
treated
water
• A simpler scheme
from Canada uses a
huge water aspirator
to restore the DO.
from Canada uses a
huge water aspirator
to restore the DO.
• Water quality in
the Sein River was poor
due to high BOD and low DO. To restore the
[O2] they used liquid O2
bubbled thru the water.
due to high BOD and low DO. To restore the
[O2] they used liquid O2
bubbled thru the water.
