【摘要】 以酸性紫FBL为降解目标,采用亚硫酸钠-Fe（Ⅱ）-溶解氧体系产生的硫酸根自由基（·SO4-）降解酸性紫FBL脱色,比较了不同体系的降解脱色性能,考察了pH值、Fe²⁺浓度、SO₃^2-浓度、空气流量、酸性紫FBL的初始浓度对降解脱色的影响。结果表明,在最佳的实验条件为:pH=7.0,Fe2+浓度为0.75 mmol/L,SO₃^2-浓度为1.25 mmol/L,空气流量为0.70 L/min,污染物浓度为128 mg/L。经过40 min的降解脱色,酸性紫FBL溶液的脱色率可达到94%以上。更多还原

【Abstract】 The acid violet FBL was used as the degradation target, and the degradation of acid violet FBL by sulfate radical free radical(·SO4-)produced through sodium sulfite-Fe(II)-dissolved oxygen system was investigated, and the decolorization performance of different systems was compared. The effects of pH, ferrous concentration, sodium sulfite concentration, air flow and initial concentration of acid violet FBL for decolorization were investigated. The results showed that the best experimental conditions were as follows:pH=7.0, ferrous concentration was 0.75 mmol/L, sodium sulfite concentration was 1.25 mmol/L, air flow rate was0.70 L/min, and pollutant concentration was 128 mg/L. After 40 min degradation, the degradation rate of acid violet FBL solution could reach over 94%.更多还原