PERFORMANCE EVALUATION OF MODIFIED DESULFURIZED FLY ASH ON PHOSPHATE WASTEWATER TREATMENT: AN EXPERIMENTAL CASE STUDY
QIU Yu-dan
Abstract：Desulfurized fly ash, the solid waste discharged by coal-fired power plant, could be applied in the treatment of phosphate wastewater as a coagulant. In this paper, desulfurized fly ash was modified by sulfuric acid and hydrochloric acid to enhance the phosphorus removal. When desulfurized fly ash was modified by 10 g/L sulfuric acid, the PO43-removal efficiency reached 94％, and the PO43-concentration was 0.72 mg/L in the effluent. When desulfurized fly ash was modified by 15 g/L hydrochloric acid, the PO43-removal efficiency reached 95％, and the PO43-concentration was 0.65 mg/L in the effluent.
Keywords：Desulfurized fly ashCoagulantPhosphate wastewater
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 28-30 )