%0 Journal Article %T Characteristics of ammonium adsorption by the natural clinoptilotite
沸石吸附铵离子的若干性质的研究 %A 楼莉萍 %A 王光火 %A 胡顺良 %J 浙江大学学报(农业与生命科学版) %D 2001 %I Zhejiang University Press %X The kinetics of NH4+ adsorption and desorption by a naturalzeolite clinoptilotite were investigated. Kinetic models evaluated at different equilibrium NH4+ concentrations included the first-order kinetics, modified Freundlich, parabolic diffusion, and heterogeneous diffusion. They described the NH4+ adsorption process well, with r2 values ranging from 0.843 to 0.997. The desorption of the adsorbed NH4+ was far more rapid than the adsorption. The influence of pH on adsorption depends on the buffer solution used and its concentration. %K 斜发沸石 %K 吸附 %K 解吸 %K 吸附量 %K pH %K 缓冲液 %K 铵离子 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=298920A27C9BAA22346FCA384240FAA4&jid=466C05D88593309B3EB5CF34361E6426&aid=98E019A22E07EA5B&yid=14E7EF987E4155E6&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=D3E34374A0D77D7F&eid=9971A5E270697F23&journal_id=1008-9209&journal_name=浙江大学学报(农业与生命科学版)&referenced_num=15&reference_num=13