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首页> 外文期刊>Pakistan Journal of Agricultural Sciences >Zinc adsorption behavior of different textured calcareous soils using Freundlich and Langmuir models.
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Zinc adsorption behavior of different textured calcareous soils using Freundlich and Langmuir models.

机译：使用Freundlich和Langmuir模型对不同质地钙质土壤的锌吸附行为。

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摘要

Zinc adsorption was studied in ten soils varying in texture or calcareousness of Punjab. Adsorption process was executed by equilibrating 2.5 g soil in 25 ml of 0.01 M CaCl2 solution containing 0, 5, 10, 15, 20, 25, 70, and 120 mg Zn L-1. Sorption data were fitted to Freundlich and Langmuir adsorption models. The data were best fitted in both linearized Freundlich and Langmuir equations as evidenced by higher correlation coefficient values ranging from 0.87 to 0.98. High clay contents ranging from 8 to 32% and CaCO3 4.46 to 10.6% promoted an increase in the amount of adsorbed Zinc in these soils. Adsorption of Zn increased with the increasing level of Zn and also increased with increase in clay, and CaCO3 contents. The maximum adsorption of Zn was observed in the Kotli whereas, the minimum in the Shahdra soil series.
机译：在旁遮普邦质地或钙质不同的十种土壤中研究了锌的吸附。通过在25 ml含0、5、10、15、20、25、70和120 mg Zn L -1的0.01 M CaCl 2 溶液中平衡2.5 g土壤来进行吸附过程。吸附数据适合Freundlich和Langmuir吸附模型。数据最适合线性化的Freundlich方程和Langmuir方程，较高的相关系数值介于0.87至0.98之间。高黏土含量在8％至32％之间，CaCO 3 4.46％至10.6％在这些土壤中促进了锌的吸附量的增加。 Zn的吸附量随Zn含量的增加而增加，也随粘土含量和CaCO 3 含量的增加而增加。在Kotli中观察到最大的Zn吸附，而在Shahdra土壤系列中观察到最小。

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