Immobilization of Catalase on Porous Acid Clay

Abstract

Catalase was immobilized on acid clay using ethylsilicate. The relative activity of the immobilized catalase to the free enzyme was 23% upon a reaction for 5min at pH 7.0, 25°C in a batchwise reactor. The treatment of waste water containing 3.6mM H₂O₂ at 25°C through a column with 2.0g of the immobilized catalase continuously degraded 85% of the hydrogen peroxide in 3000ml of the waste water.