摘要： 分别以聚合硅酸铝和硝酸银作为高铁酸钾水溶液的稳定剂和对有机污染物的氧化催化剂，研究了高铁酸钾对焦化废水的降解效果。结果表明，当高铁酸钾质量分数为0.10%，聚硅酸铝质量分数为1.5%，Ag+质量浓度为0.10 mg/L，pH为5.0时，COD去除率可达约80%。同时，对Ag+促进高铁酸钾氧化的机理进行了探讨，对影响COD去除率的因素进行了分析。
关键词:
聚合硅酸铝,
高铁酸钾,
硝酸银,
焦化废水
Abstract: Using polyaluminum silicate and silver nitrate as a stabilizer of potassium ferrate aqueous solution and as an oxidation catalyst of organic pollutants,respectively,the degradation effect of potassium ferrate on coking waste-water has been researched. The results show that the COD removing rate can reach about 80%,when the mass fraction of potassium ferrate is 0.10%,that of polyaluminum silicate 1.5%,mass concentration of Ag+ 0.10 mg/L and pH 5.0. In addition,the mechanisms of Ag+ promoting the oxidation of potassium ferrate is discussed,and the factors affecting the COD removing rate analyzed.
Key words:
polyaluminum silicate,
potassium ferrate,
silver nitrate,
coking wastewater
中图分类号:
朱开金, 李敏, 任晓莉, 谭俊华, 孙瑶, 赵润柱, 来雪慧. SiO32-作用下Ag+对K2FeO4氧化焦化废水的有效催化[J]. 工业水处理, 2018, 38(2): 59-62.
Zhu Kaijin, Li Min, Ren Xiaoli, Tan Junhua, Sun Yao, Zhao Runzhu, Lai Xuehui. Effective catalysis of silver ions on the K2FeO4 oxidation of coking wastewater under the action of silicate ions[J]. INDUSTRIAL WATER TREATMENT, 2018, 38(2): 59-62.