| 氮磷肥对褐土吸附土霉素的影响 |
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| 引用本文： | 刘斌,鲍艳宇,周启星,张承东.氮磷肥对褐土吸附土霉素的影响[J].中国环境科学,2014,34(8):2057-2062. |
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| 作者姓名： | 刘斌 鲍艳宇 周启星 张承东 |
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| 作者单位： | 南开大学环境科学与工程学院;教育部环境污染过程与基准重点实验室;天津市城市生态环境修复与污染防治重点实验室; |
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| 基金项目： | 国家自然基金重点项目(21037002);天津市自然基金(13JCQNJC09000);天津市自然基金重点项目(13JCZDJC35900) |
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| 摘 要： | 为了了解不同氮磷肥对褐土吸附土霉素的影响,将OECD Guideline 106作为参考方法,并选用NH4Cl,CO(NH2)2,Ca(NO3)2及Ca(H2PO4)2四种常用的农业化肥作为影响因素,进行等温吸附试验.结果表明,氮磷肥添加过后,吸附等温线依然可用Langmuir和Freundlich方程拟合(PNH4Cl>CK>Ca(H2PO4)2>CO(NH2)2,而在吸附率和分配系数方面影响最大的则是CO(NH2)2,数值平均下降了2.43%,13.19%,最小的则是Ca(H2PO4)2,其值平均下降了1.75%,9.59%.
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| 关 键 词： | 氮磷肥 褐土 吸附 土霉素 |
Effect of N,P fertilizers on adsorption of oxytetracycline to cinnamon soil. |
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| LIU Bin,BAO Yan-Yu,ZHOU Qi-Xing,ZHANG Cheng-Dong.Effect of N,P fertilizers on adsorption of oxytetracycline to cinnamon soil.[J].China Environmental Science,2014,34(8):2057-2062. |
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| Authors: | LIU Bin BAO Yan-Yu ZHOU Qi-Xing ZHANG Cheng-Dong |
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| Abstract: | The OECD Guideline 106 was selected as reference method, in purpose of investigating the effect of nitrogen-containing and phosphorus-containing fertilizers on adsorption of OTC in cinnamon soil. In addition, ammonium chloride, urea, calcium nitrate and triple superphosphate were employed as treatment factors. The isothermal adsorption test showed that data could be fitted very well (PNH4Cl>CK>Ca(H2PO4)2>CO(NH2)2. In terms of adsorption rate and distribution coefficient, CO(NH2)2 gave rise to the most significant influence which decreased by 2.43%, 13.19% averagely, and Ca(H2PO4)2 led to the least significant influence which lowered by 1.75%, 9.59%. |
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| Keywords: | nitrogen and phosphorus fertilizers cinnamon soil adsorption oxytetracycline |
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