| 黄河中下游沉积物对磷酸盐的吸附特征 |
| 摘要点击 1918 全文点击 1212 修订日期：2007-12-10 |
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| 中文关键词 黄河沉积物 磷 吸附 |
| 英文关键词 Yellow River bed sediment phosphate adsorption |
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| 中文摘要 |
| 研究了黄河中下游12个沉积物的临界磷平衡浓度（EPC0k）.利用所得拟合参数通过公式计算方法得到EPC0、原有交换态磷(NAP）以及固-液分配系数Kp值并考察了环境因子（pH、离子强度）对吸附作用的影响.沉积物的EPC09.7，吸附量略有增高.随着Ca2+离子强度的增加，沉积物对磷的吸附量减小. |
| 英文摘要 |
| The equilibrium phosphate concentration (EPC0k) were obtained by the modified Langmuir isotherm model. Native adsorbed exchangeable phosphorus (NAP), the EPC0Kp) were subsequently calculated by the corresponding formulae. The influence of pH values and ion strength were evaluated. All the EPC02+ ionic strength. |
