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| 改性沸石的磷钝化影响因素研究 |
| The Factors Influencing P Inactivation Efficiency of Modified Zeolite |
| 投稿时间：2013-03-20 修订日期：2013-05-26 |
| DOI： |
| 中文关键词: 改性沸石;沉积物;磷;钝化;影响因素 |
| 英文关键词: modified zeolite;sediment;phosphorus inactive;influencing factor |
| 基金项目:国家科技支撑计划项目(2011BAC02B0201);贵阳市科技计划项目(筑科合同[2011103],[2010]筑科农合同字第5-2号)。 |
| 作者 | 单位 | E-mail | | 杨永琼1,2, 陈敬安1, 曾艳1, 王敬富1,2, 杨海全1,2, 计永雪1,2 | 1. 中国科学院地球化学研究所环境地球化学国家重点实验室, 贵阳 550002
2. 中国科学院大学, 北京 100049 | chenjingan@vip.skleg.cn |
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| 中文摘要: |
| 通过实验室模拟,对比研究了在不同环境条件下(温度、pH值、溶解氧和上覆水磷浓度)改性沸石的沉积物磷钝化效率。结果表明:改性沸石能有效减少不同环境条件下沉积物磷的释放量,具有较好的钝化效果,同时可吸附减少水体重金属离子含量,对水环境基本上没有负面影响。改性沸石对沉积物磷的钝化效率主要受水体pH值控制,上覆水体溶解氧含量、水体温度和上覆水磷含量对钝化效果影响较小。 |
| 英文摘要: |
| The P inactive efficiencies of modified zeolite under various influencing factors including temperature, pH, DO and P concentrations, were studied in this paper. The results showed that modified zeolite can effectively reduce phosphorus release from sediments under different conditions, and does not release poisonous elements into the water. The DO of the overlying water has low or no impact on P inactive efficiency. However, pH is a major factor, but temperature and P concentrations have less impact. |
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