Patent ID: 9327230
Filing Date: 2016-05-03
CPC Classification: B01D,C02F

Claim Text:
1. A method of treating effluent seawater generated in the removal of sulphur dioxide from a process gas by contacting the process gas containing sulphur dioxide with seawater, comprising: blowing an oxygen-containing gas into the effluent seawater produced in the removal of sulphur dioxide from a process gas, contained in an oxidation basin via an oxygen supply system to form mixing regions in which the oxygen-containing gas enters the oxidation basin mixing with the effluent seawater; and arranging enzyme-supporting structures fixed within the oxidation basin in or adjacent the mixing region for mixed oxygen-containing gas and effluent seawater contact with an enzyme immobilized on the enzyme-supporting structures for catalyzing oxidation of bisulphite and/or sulphite ions in the effluent seawater to form sulphate ions by increasing the rate of oxidation reactions within the oxidation basin without consumption of the immobilized enzyme.