DESULFURIZATION APPARATUS BY SEA WATER

摘要

PROBLEM TO BE SOLVED: To accelerate the oxidation of SO3in a waste liquid containing sulfur with a simple apparatus structure and to reduce COD to a predetermined value or less and increase DO to a predetermined value or more.

SOLUTION: In a desulfurization apparatus by sea water including a mixing vessel 15 generating a mixed liquid 25 of which pH is adjusted to 5.7-6.5 by mixing the sea water 6 with the waste liquid 10 containing sulfur, and an aeration tank 18 carrying out aeration by introducing the mixed liquid 25 in the mixing vessel 15 and jetting the air from a plurality of jetting openings of an air pipe 19 provided at the bottom part for aeration, the diameter of an air jetting opening installed to the air pipe 19 is 2 mm or more.

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