UTILISATION OF FLY ASH AND UNBURNED CARBON FOR REMOVAL OF ORGANIC CONTAMINANTS FROM WASTEWATER

摘要：

Several fly ash samples were prepared with varying contents of unburned carbon. These samples were characterised and tested for methylene blue and humic acid adsorption in aqueous solution. It was found that the unburned carbon makes a significant contribution to the surface area and adsorption of organics on fly ashes. The unburned carbon itself exhibits much higher adsorption capacity than mineral section of fly ash. For raw fly ash and unburned carbon, the adsorption can be well fitted by the Langmuir and Freundlich isotherms. Based on the Langmuir isotherm, fly ash and unburned carbon show adsorption capacities of methylene blue as 3.6 and 263 mg/g, respectively, while for humic acid the adsorption capacities are 10.7 and 74.2 mg/g, respectively.

关键词： Fly ash unburned carbon wastewater adsorption organic pollutants

作者: Shaobin WANG Thanet Terdkiatburana Moses O.Tadé Hongwei WU

作者单位: Department of Chemical Engineering, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia

会议类型: 国际会议

会议名称: 第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)

会议地点: 武汉

会议语种:英文

页码: 628-632

在线出版日期: 2007-12-01（万方平台首次上网日期，不代表论文的发表时间）