BAC Filtration Examples in Full-Scale Drinking Water Treatment Plants - Activated Carbon for Water and Wastewater Treatment - page 318

Full Scale Plant
Flow Rate: 70 10 6 m 3 /y

Pilot Plant
Flow Rate: 10 m 3 /h

River Rhine

Pretreatment by
Coagulation,
Sedimentation,
Rapid Filtration,
Dune Filtration

Rapid Sand Filtration Rapid Sand Filtration

Ozonation Ozonation

Softening Softening

BAC Filtration BAC Filtration

Slow Sand Filtration Slow Sand Filtration

Drinking Water Drinking Water

Figure 10.2 Treatment scheme of the Leiden full- and pilot-scale treatment
plant (redrawn after [7]).

or 100 000 bed volumes the AOC content would be equal to or lower than 10 m gCL -1
after BAC filtration. With slow sand filtration as a polishing step AOC would be
less than 10-5 m gCL -1 [7].

10.2.3
Plants in the Suburbs of Paris, France

The performance of BAC filters preceded by an ozonation step was evaluated
in three treatment plants located in the suburbs of Paris (M´ry-sur-Oise, Choisy-le-
Roi, and Neuilly-sur-Marne). In these plants, having treatment capacities between
240 000 and 800 000m 3 d -1 , river waters were treated by flocculation and settling,
rapid sand filtration, ozonation, BAC filtration, and final disinfection using
chlorine. In the ozonated water the DOC ranged from 1.74 to 2.29mg L -1 in dif-
ferent treatment works. The corresponding BDOC in ozonated water was in the