pfasCOCA²³⁴⁴⁰¹BNC²³⁶²¹³⁺¹ 基本例句 =performic acid-Schiff reaction 过氧甲酸-席夫反应 After the flocculation of wastewater being acidified and neutralized and0.4% of poly aluminum ferric sulphate PFAS, the removal rate of COD can reach above 50% and the chroma decreases four times. 经酸析、中和工艺处理后的废水与0.4%的聚合硫酸铝铁进行混凝处理后，废水的 COD单元去除率仍可达50%以上，色度降低了4倍。 cnki