Removal kinetics of phosphorus from synthetic wastewater using basic oxygen furnace slag

查看全文 作　　者：Chong [1]Han;Zhen [1]Wang;He [1]Yang;Xiangxin [1]Xue

机构地区：[1]School of Materials & Metallurgy, Northeastern University

出　　处：《Journal of Environmental Sciences》索引2015年第27卷第4期,共9页

基　　金：financially supported by the Fundamental Research Fund for the Central Universities (No. N130302004);the National Natural Science Foundation of China (No. U1360204) 摘　　要：Removal kinetics of phosphorus through use of basic oxygen furnace slag(BOF-slag)was investigated through batch experiments. Effects of several parameters such as initial phosphorus concentration, temperature, BOF-slag size, initial p H, and BOF-slag dosage on phosphorus removal kinetics were measured in detail. It was demonstrated that the removal process of phosphorus through BOF-slag followed pseudo-first-order reaction kinetics. The apparent rate constant(kobs) significantly decreased with increasing initial phosphorus concentration, BOF-slag size, and initial p H, whereas it exhibited an opposite trend with increasing reaction temperature and BOF-slag dosage.A linear dependence of kobson total removed phosphorus(TRP) was established with kobs=(3.51 ± 0.11) × 10- 4× TRP. Finally, it was suggested that the Langmuir–Rideal(L–R)or Langmuir–Hinshelwood(L–H) mechanism may be used to describe the removal process of phosphorus using BOF-slag. 关键词：碱性氧气转炉动力学测定磷浓度 LANGMUIR 一级反应动力学转炉炉渣除渣水采

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Removal kinetics of phosphorus from synthetic wastewater using basic oxygen furnace slag

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