高浓度磷氟砷磷化工废水的处理工艺

Treatment Process for Phosphorus Chemical Industry Wastewater with High Concentration of Phosphorus,Fluorine and Arsenic

对高浓度磷化工废水进行处理,采用一级反应槽[Ca(OH)_2]/一级斜板(PAM)絮凝沉淀和二级反应槽[FeSO_4+Ca(OH)_2]/二级斜板(PAM)絮凝沉淀,并提供了该工艺所需构筑物和设备的选型.经该工艺处理后的水质指标为:COD≤80 mg/L,ρ(F)(Fluorine)≤15 mg/L,ρ(P)≤20 mg/L,ρ(As)≤0.5 mg/L,ρ(SS)≤50 mg/L,6≤pH≤9,符合《磷肥工业水污染物排放标准》(GB 15580-2011).本工艺对磷化工废水的处理具有良好的效果,能有效去除磷氟砷等杂质.

To make the wastewater from phosphorus chemical industry, the wastewater with high concentration of phosphorus, fluorine and arsenic was treated by the first order reaction tank E Ca （OH）2J and the first class inclined plate settling basin followed the second order reaction tank E FeSO4＋ Ca （OH）21 and the second class oblique board precipitation tank. We also chose the configuration and equipment for the combined process. The treated wastewater quality showing COD ~〈 80 mg/L, p（fluorine） ~〈 15 mg/L, p（P） 〈~ 20 mg/L, p（As） ~〈 0.5 mg/L, p （SS） ~〈50 mg/L and 6~〈pH~〈9 meet the Phosphatic Fertilizer Industry Wastewater Discharge Standards （GB15580-2011） , demonstrating that the treatment effect on phosphorus chemical industry wastewater with high concentration phosphorus, fluorine and arsenic is very well.