Study on Treatment Efficiency of Domestic Sewerage by Fly Ash by Adsorption Experiment

摘要：

This study attempted to find the adsorption law of fly ash to COD in domestic sewerage. After the elementary characterization of fly ash was described, the influence of contact time, sorbent concentration, and different pretreatment ways of fly ash, initial COD concentration and temperature on the adsorption process was investigated. Results showed adsorption equilibrium attained within 120 min time. Freundlich adsorption isotherm model fitted the experimental data better than Langmuir model. The treatment efficiency improved if fly ash was pretreated through pickling or washing. The adsorption capacity of fly ash to COD decreased with rise of temperature, which showed that the adsorption process was an exothermal process.

作者: Hongqin XUE Zhaoqian JING Yan WANG

作者单位: School of Civil Engineering, Nanjing Forestry University Nanjing 210037, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）