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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (11): 168-172.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

油母页岩及其废弃物对氮、磷、钾的吸附解吸特性研究

张慧,颜丽,杜舰,王圆方,关连珠   

  • 收稿日期:2010-02-05 修回日期:2010-03-06 出版日期:2010-06-05 发布日期:2010-06-05

Study on the characteristics of nitrogen, phosphorus, potassium adsorption and desorption in oil shale and residue

Zhang Hui, Yan Li, Du Jian, Wang Yuanfang, Guan Lianzhu   

  • Received:2010-02-05 Revised:2010-03-06 Online:2010-06-05 Published:2010-06-05

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摘要：

摘要：【研究目的】本研究的目的在于探明油母页岩（尾矿和贫矿）及其废弃物（灰渣）对氮、磷、钾离子的吸附及解吸特性。【方法】本文采用平衡法对其展开深入研究。【结果】油母页岩及其废弃物对氮的吸附量为尾矿>灰渣>贫矿，尾矿最大吸附量为1429 mg/kg，是灰渣和贫矿的1.86和2.29倍；氮解吸率为尾矿>灰渣>贫矿，尾矿平均解吸率为73.72%，是灰渣和贫矿的1.04和1.09倍。对磷的吸附量为尾矿>灰渣>贫矿，尾矿最大吸附量为909.1 mg/kg，是灰渣和贫矿的1.27和2.45倍；磷解吸率为尾矿>贫矿>灰渣，尾矿平均解吸率为13.86%，是贫矿和灰渣的1.22和2.67倍。对钾的吸附量为尾矿>贫矿>灰渣，尾矿最大吸附量为2500 mg/kg，为贫矿和灰渣的2.00和4.25倍；钾解吸率为尾矿>贫矿>灰渣，尾矿平均解吸率为86.87%，是贫矿和灰渣的1.03和1.22倍。【结论】综上所述，油母页岩尾矿对氮、磷、钾的吸附解吸能力均较强，具有作为土壤保肥物质开发的可能性。

关键词: 小麦, 小麦, 花培育种, 亲本选配

Abstract:

Abstract：【OBJECTIVE】N,P and K adsorption and desorption characteristics of oil shale (debris and lean ore) and the residue (ash) were studied in this paper.【METHOD】An equilibrium method was used to study in this article.【RESULTS】the sequence of oil shale and residue to the nitrogen adsorptive capacity was the debris > the ash > the lean ore,the maximum adsorption capacity of the debris was 1429 mg/kg,which was 1.86 times of the ash and 2.29 times of the lean ore .The sequence of oil shale and residue to the nitrogen desorption rate was the debris > the ash > the lean ore.,the average desorption rate of the debris was 73.72%, which was 1.04 times of the ash and 1.09 times of the lean ore .The sequence of oil shale and residue to the phosphorus adsorptive capacity was the debris > the ash > the lean ore , the maximum adsorption capacity of the debris was 909.1 mg/kg，which was 1.27 times of the ash and 2.45 times of the lean ore . The sequence of oil shale and residue to the phosphorus desorption rate was the debris> the lean ore > the ash, the average desorption rate of the debris was 13.86%, which was 1.22 times of the lean ore and 2.67 times of the ash.The sequence of oil shale and residue to the potassium adsorptive capacity was the debris > the lean ore > the ash , the maximum adsorption capacity of the debris was 2500mg/kg,which was 2.00 times of the lean ore and 4.25 times of the ash . The sequence of oil shale and residue to the potassium desorption rate was the debris > the lean ore >the ash, the average desorption rate of the debris was 86.87%, which was 1.03 times of the lean ore and 1.22 times of the ash.. 【CONCLUSION】On conclusion,the adsorption capacity and desorption rate of N,P,K in oil shale debris were the highest ,so oil shale debris as keeping fertilizer agents have the possibilities of development .