次氯酸钠处理碱性紫5BN模拟废水的研究

Experimental study on alkaline purple 5BN-containing wastewater treatment by sodium hypochlorite

目的:运用次氯酸钠氧化法对碱性紫5BN模拟废水进行处理。方法:试验研究了碱性紫5BN初始质量浓度、次氯酸钠投加体积、搅拌时间对碱性紫5BN脱色率及COD去除率的影响。结果:在碱性紫5BN质量浓度为100mg/L的条件下,次氯酸钠投加体积1.0mL,搅拌时间控制为2h,碱性紫5BN的脱色率可达85.05%,COD去除率可达70.15%。

Objective: Wastewater containing alkaline purple 5 BN was treated through the sodium hypochlorite.Method: The influence of sodium hypochlorite dosage, the reaction time and the initial concentration of alkaline purple 5 BN were investigated.Result: Under the optimal condition which the initial concentration of alkaline purple5 BN was 100 mg/L, the sodium hypochlorite dosage was 1.0 mL and the reaction time was 2 h, the decoloration rate was85.05% and the COD removal rate was 70.15%.