Adsorption Kinetics of Ammonium Ion onto Unconsolidated Geothermal Reservoir Medium

摘要：

　　The frequent exploitation of geothermal resources can induce the oxidation of ammonium ion to nitrite. To explore the NH4+ ion transport processes in unconsolidated geothermal reservoir medium, the adsorption kinetics of NH4+ ions from aqueous solutions onto unconsolidated geothermal reservoir medium were studied through batch experiments. The results indicate that the adsorption of NH4+ ion is a spontaneous, exothermic process and the adsorption is higher at lower temperatures. Kinetic analysis at different temperatures shows that the adsorption of NH4+ ion onto sediment from unconsolidated geothermal reservoir well follows the pseudo-second-order model, indicated by the regression coefficient(R2=1).

关键词： ammonium adsorption kinetics fine sand

作者: Li Zhao Xinyi Wang

作者单位: Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan Province, China

会议类型: 国际会议

会议名称: The 12th Congress of International Mine Water Association,IMWA2014(第十二届国际矿井水大会)

会议地点: 徐州

会议语种:英文

页码: 420-423

在线出版日期: 2014-08-18（万方平台首次上网日期，不代表论文的发表时间）