| 摘要 |
<P>PROBLEM TO BE SOLVED: To largely reduce total nitrogen from wastewater in the purification of combustion exhaust gas/wastewater. <P>SOLUTION: Treatment by a denitration apparatus 2, a dedusting apparatus 3, and a desulfurization apparatus 4 is applied to the combustion exhaust gas form a boiler and another combustion apparatus 1, and the exhaust gas is discharged into the air. Desulfurization wastewater is passed from an oxidation column 5 through the wastewater adjustment tank, pH adjustment tank, reaction tank, flocculation tank, and precipitation tank of a desulfurization wastewater apparatus 6 so that the precipitate, by a slurry pit and a dewaterer, dewatered cake, and powdery waste are taken out, and the supernatant is passed through a mixing tank, a re-neutralization tank, and a filtration raw water tank and discharged. <P>COPYRIGHT: (C)2004,JPO |
