Rouen, France Water Treatment Plant Using Biological Activated Carbon

by Rip G. Rice, Corporate Mgr.; Government Relations, Jacobs Engrg. Co., Washington, D.C.,
G. Wade Miller, Dir.; Environmental Programs, Public Technology Inc., Washington, D.C.,
Cyril Gomella, Pres.—Directeur General; Setude, Paris, France,


Serial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 5, Pg. 76-82


Document Type: Feature article

Abstract: The la Chapelle drinking water treatment plant in Rouen, France was designed specifically to incorporate biological activated carbon (BAC). With many U.S. cities faced with the prospect of installing granular activated carbon columns to remove synthetic organics, the 26 months of operating experience at the Rouen plant should be of keen interest to U.S. designers. Basically, the Rouen plant uses ozonization prior to and after the sand and granular activated carbon filters. Water is given a mild dose of chlorine before it enters the distribution system. Product water has excellent bacteriological qualities. And most of the synthetic organics have their concentrations sharply reduced by the process. A key advantage of the process is that the granular carbon needs to be regenerated only infrequently. To date, the plant has operated for 26 months — and the carbon, which has not had to be regenerated as yet, shows no reduction in the ability to remove organics.

Subject Headings: Activated carbon | Chlorine | France | Waste treatment | Water treatment

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