title: Removal kinetics of phosphorus from synthetic wastewater using basic oxygen furnace slag.
abstract: 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 pH, 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 pH, whereas it exhibited an opposite trend with increasing reaction temperature and BOF-slag dosage. A linear dependence of kobs on 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.
authors: School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China. Electronic address: hanch@smm.neu.edu.cn.
authors: Chong
authors: C
authors: Han
authors: School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China.
authors: Zhen
authors: Z
authors: Wang
authors: School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China.
authors: He
authors: H
authors: Yang
authors: School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China.
authors: Xiangxin
authors: X
authors: Xue
mesh_terms: D007220:Industrial Waste; D007700:Kinetics; D008855:Microscopy, Electron, Scanning; D008962:Models, Theoretical; D010100:Oxygen; D010758:Phosphorus / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D007220:Industrial Waste; D010100:Oxygen; D010758:Phosphorus; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Apparent rate constant; Basic oxygen furnace slag; Kinetics; Phosphorus