WASTEWATER CHANNEL OF SEAWATER DESULFURIZATION APPARATUS AND SEAWATER FLUE GAS DESULFURIZATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a wastewater channel of a seawater desulfurization apparatus and a seawater flue gas desulfurization system, which can attain power reduction of an aeration apparatus.;SOLUTION: The seawater flue gas desulfurization system comprises: a flue gas desulfurization absorption tower 102 which brings flue gas 101 into gas-liquid contact with seawater 103 to carry out desulfurization reaction of SO₂ to sulfurous acid (H₂SO₃); a diluting mixing tank 105 which is provided at a lower side of the flue gas desulfurization absorption tower 102 and which carries out dilution mixing of sulfur-containing used seawater 103A with dilution seawater 103a for dilution; an oxidation tank 106 which is provided at a downstream side of the diluting mixing tank 105 and which has an aeration apparatus 120 for carrying out water quality recovery treatment of seawater 103B used for dilution; and a wastewater channel 150 which has multiple steps of partition walls, height of which is made to be successively lower from an upstream side to a down stream side when the seawater 103B used for dilution is sent to the oxidation tank 106 for carrying out the water quality recovery treatment.;COPYRIGHT: (C)2012,JPO&INPIT