METHOD FOR INHIBITION OF BROMATE FORMATION IN OZONATION OF WATER

METHOD FOR INHIBITION OF BROMATE FORMATION IN OZONATION OF WATER

The formation of bromate (BrO3−) from bromide ion in water during ozone treatment of the water is inhibited by inclusion of a compound of formula I: where each of R1 and R2 is an oxygen-containing electron-withdrawing substituent effective to resonance stabilize an alkoxy radical of compound I, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBINSON B. KEEL, VILLALOBOS RICARDO J, SHETH NIKHIL D
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:The formation of bromate (BrO3−) from bromide ion in water during ozone treatment of the water is inhibited by inclusion of a compound of formula I: where each of R1 and R2 is an oxygen-containing electron-withdrawing substituent effective to resonance stabilize an alkoxy radical of compound I, and R3 is an alkyl, aryl, or aralkyl group. The water may be further treated with an additional oxidant such as hydrogen peroxide. The compound of formula I is effective to inhibit formation of bromate from bromide present in the water, without impairing the oxidative remediation of the water.