| abstract |
The present invention relates to a flue gas cleaning liquid purification system, and more particularly, a scrubber for removing contaminants such as sulfur oxides from flue gas using a cleaning liquid, and a cleaning liquid purification unit for cleaning the contaminated cleaning liquid discharged from the scrubber, A cleaning liquid resupplying unit for supplying the cleaning liquid purified by the cleaning liquid purifying unit back to the scrubber, and a sludge treatment unit processing and storing the sludge discharged from the cleaning liquid purifying unit, wherein the cleaning liquid purifying unit is contaminated discharged from the scrubber. A circulating buffer tank for temporarily storing the cleaning liquid, a coagulant supply device for supplying a coagulant that coagulates contaminants of the contaminated cleaning liquid discharged from the scrubber, and a contaminated cleaning liquid discharged from the scrubber are retained for a certain period of time and the contaminants are precipitated. The present invention relates to a flue gas cleaning liquid purification system comprising a sedimentation device for primary purification, and a filtering device for filtering the contaminated cleaning liquid to filter out contaminants and purify the contaminated material secondarily. |