Fe (2+)活化过硫酸盐预处理焦化废水试验研究 高静湉.pdf

应用化工
Applied Chemical Industry
ISSN 1671-3206,CN 61-1370/TQ

/COD 为 ，通过单因素试验探究了 PS 及 Fe 浓度、初始 pH 值、反应时
间等因素对焦化废水处理效果的影响；并采用响应面进行优化验证，利用三维荧光光谱对处理前后焦化废水有机成分
进行表征。结果表明：在 PS 和 Fe2+浓度分别为 25 和 20 mmol‧L-1，pH 值为 9 时，反应 120 min 后 COD 降至 1140
-1 2+
mg‧L ，去除率达 %；Fe /PS 体系能将原水中酚类及类腐殖酸类物质降解为小分子化合物；BOD5/COD 从
升至 ，表明 Fe2+/PS 技术可有效降解焦化废水中有机物，提高其可生化性。本研究可为焦化废水预处理方法选择
及应急技术方案制定提供理论参考。
关键词 焦化废水；预处理；Fe2+/PS；可生化性
中图分类号
Experimental study on pretreatment of coking wastewater by Fe2+ activated
persulfate
Gao Jingtian, Cai Yiting, Li Weiping, Yu Linghong
(School of Energy and Environment, Inner Mongolia University of Science & Technology, Baotou 014010, China)
Abstract In order to reduce the COD of coking wastewater and improve its biodegradability, Fe 2+ activated persulfate
2+
(Fe /PS) technology was used to pretreat the wastewater. COD and BOD 5/COD of raw water were 2120 mg/L and , and
the pH value was . The influence of PS and Fe2+ concentration, in