"江西省典型水稻土对铜的吸附解吸特性研究 |
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引用本文: | 常娟,白玲,冷婧,汪小强. "江西省典型水稻土对铜的吸附解吸特性研究[J]. 江西农业大学学报, 2016, 0(1): 207-214. DOI: 10.13836/j.jjau.2016030 |
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作者姓名: | 常娟 白玲 冷婧 汪小强 |
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作者单位: | 江西农业大学 理学院,江西 南昌,330045 |
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基金项目: | 江西省教育厅科技研究项目(GJJ14289),江西省环境保护科研项目(JXHBKJ2013-4),江西省普通本科高校中青年教师发展计划访问学者专项资金(赣教高函[2014]15号)Project supported by the Research Project of Jiangxi Education Department(GJJ14289),the Research Project of Environmental Protection Department of Jiangxi Province(JXHBKJ2013-4),the Special Fund for Visiting Scholar of the Development Plan for Middle-aged and Young Teachers in Colleges of Jiangxi Province(Gan-jiaogaohan[2014] 15) |
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摘 要: | 以江西省2种典型水稻土(潜育型、潴育型)为试材,采用振荡平衡法研究了铜在水稻土中的吸附-解吸行为,并利用保留因子对铜在水稻土中的环境风险进行了评估。结果表明:潴育型水稻土的吸附能力较强,明显大于潜育型水稻土,但潴育型水稻土的解吸能力小于潜育型水稻土;2种水稻土对铜的吸附均可用Langmuir方程及Freundlich方程较好的拟合;铜的环境风险随铜含量的升高而增大,且潜育型水稻土大于潴育型水稻土。
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关 键 词: | 水稻土 铜 吸附 解吸 环境风险评估 |
A Study on Adsorption and Desorption of Copper in Typical Paddy Soils in Jiangxi Province |
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Abstract: | Two types of typical paddy soil( gley type,waterloggogenic type) in Jiangxi Province were cho-sen as the test material, using batch equilibrium method the adsorption-desorption behavior of copper in the paddy soil was studied,and using the retention factor in the environmental risk of copper in paddy soil was e-valuated.The results showed that the adsorption ability of waterloggogenic paddy was significantly higher than that of gley type paddy soil;but the desorption capacity of waterloggogenic paddy soil was lower than that of gley type paddy soil;the adsorption of copper by the two types of paddy soil can be fitted well by Langmuir e-quation and freundlich equation;the environmental risk of copper increased with copper concentration,and the environmental risk to gley type paddy soil was greater than that to waterloggogenic paddy soil. |
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Keywords: | paddy soil copper adsorption desorption environmental risk assessment |
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