Abstract

Photocatalytic degradation of Reactive Orange 84 (RO 84) in UV radiation, released by a dye manufacturing unit has been examined using TiO 2 catalyst as slurry in aqueous dye solution. Experiments were conducted both in batch and single pass reactors. Complete color bleaching and significant reduction (≥ 90%) in chemical oxygen demand (COD) could be attained in 4–6 h of UV irradiation. The effect of flow rate on COD removal has suggested the need for upgradation of the catalyst.

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