摘要
利用气体放电协同高效混溶技术制取羟基自由基溶液,进行初始质量浓度为8853 mg/L的苯酚废水溶液氧化处理实验.羟基自由基质量浓度从0增加到1700 mg/L时,苯酚去除率为48.43%,在这一范围内,除去1 g苯酚需羟基自由基0.37 g.叙述并解释了废水pH值和电导率与羟基自由基质量浓度之间的变化关系.随着羟基自由基质量浓度的增加,废水酸碱性由接近中性逐渐转为酸性,质量浓度越大,酸性越强,而电导率先减小后增大.结合降解中间体产物和实验现象,对羟基自由基氧化降解苯酚过程进行了分析.
The phenol wastewater of high mass concentration about 8 853 mg/L was treated by hydroxyl radical produced by the cooperation of strong-field ionization discharge and effective interfusion in this paper.The phenol elimination efficiency can reach 48.43% when the hydroxyl radical mass concentration increasing from 0 to 1 700 mg/L.In this range,removing 1 g phenol requires 0.37 g hydroxyl radical.The relation between the changes of pH value and conductivity of wastewater and hydroxyl radical mass concentration was narrated.And the reasons were explained respectively too.In addition,the degradation course was analyzed by intermediate and experiment phenomena.
出处
《河北大学学报（自然科学版）》
CAS
北大核心
2007年第S1期82-85,共4页
Journal of Hebei University(Natural Science Edition)
关键词
羟基自由基
苯酚废水处理
氧化降解
hydroxyl radical
treatment of phenol wastewater
degradation
