European Water Treatment Practices — Their Experience with Ozone

by G. Wade Miller, Director of Environmental Programs; Public Technology, Washington, D.C.,
Rip G. Rice, Corporate Mgr.; Government Relations, Jacobs Engrg. Co., Washington, D.C.,

Serial Information: Civil Engineering—ASCE, 1978, Vol. 48, Issue 1, Pg. 76-77

Document Type: Feature article


Today, more than 1100 water treatment plants worldwide use ozone for some purpose. In Europe, it is always regarded as a water-treatment technique and seldom simply as a disinfectant. Among the uses of ozone: iron and manganese removal; oxidation of organics, including color bodies, taste and odor bodies, algae, suspended solids, dissolved solids; microflocculation; bacterial disinfection; viral inactivation. In conjunction with biologically activated (with ozone) carbon beds, ozone removes ammonia biologically, at the same time reducing dissolved organics and greatly extending the life of the activated carbon. Some have reservations about incorporating ozone into drinking water processes because of concern about organic oxidation products. In general, ozone produces organic oxidation products that are more biodegradable than the starting materials — and certainly more biodegradable than the halogenated organics produced under chlorination.

Subject Headings: Water treatment | Biological processes | Water treatment plants | Oxidation | Dissolved solids | Ozone | Activated carbon | Iron compounds | Europe

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