Mg(OH)₂를 이용한 습식탈황에서 폐슬러리 처리특성연구

Characteristic of Waste Slurry Treatment in Wetted Desulfurization Using Mg(OH)₂Absorbent

Properties analyses and treatment characteristics of waste slurry discharged in the wetted flue gas desulfurization process using Mg(OH)₂ as a absorbent were investigated. Aeration and coagulation test were carried out to evaluate variation of some factors such as COD. SS. T-N. T-P. etc. related to waste slurry treatment. The hydraulic retention time(HRT) and coagulant dosage rate were applied as operating variables in experiment. As experimental results. the reduction effects of COD. SS in aeration test were distinct. due to oxidation of S0₃¯ and floc. formation of suspended solids. It was also found that the reduction efficiencies of SS and T-P in coagulation test are higher than 90%.