| 区域环境中三氟乙酸富积多相传质模型研究 |
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| 引用本文： | 项徐伟,郑 钢,沈志群,吴 鹏. 区域环境中三氟乙酸富积多相传质模型研究[J]. 环境科学研究, 2009, 22(9): 1108-1112 |
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| 作者姓名： | 项徐伟 郑 钢 沈志群 吴 鹏 |
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| 作者单位： | 南通市环境监测中心站,江苏,南通,226002;南京大学化学化工学院,江苏,南京,210093 |
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| 基金项目： | 江苏省环境监测基金项目 |
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| 摘 要： | 建立了描述挥发性有机物在大气、水、土壤和底泥等环境中动态分布的多相传质模型，并用于分析长江流域江苏段及太湖水系区域内三氟乙酸(TFA)在各环境相中的分布. 采集实测数据约300个，比较实测值与模拟值,对模型的可靠行进行验证. 建立了检测环境中微量TFA前处理及方法. 结果表明:多相传质模型能够正确描述研究区域内环境中的TFA分布. 在给定排放量变化规律的前提下，预测未来10年内研究区域环境水体中ρ(TFA)将接近100 ng/L，接近现阶段欧美发达国家主要水体中的ρ(TFA).
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| 关 键 词： | 三氟乙酸 色质联机 多相传质模型 |
| 收稿时间： | 2008-10-13 |
| 修稿时间： | 2009-04-20 |
Multiphase Mass Transfer Model on the Accumulation of TFA in Regional Environments |
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| XIANG Xu-wei,ZHENG Gang,SHENG Zhi-qun and WU Peng. Multiphase Mass Transfer Model on the Accumulation of TFA in Regional Environments[J]. Research of Environmental Sciences, 2009, 22(9): 1108-1112 |
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| Authors: | XIANG Xu-wei ZHENG Gang SHENG Zhi-qun WU Peng |
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| Affiliation: | 1.Nantong Environment Monitoring Center, Nantong 226002,China2.School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China |
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| Abstract: | A multiphase mass transfer model was set up to model the heterogeneous dynamic distribution of volatile organic compounds in air,water,sediments,etc.The model was employed to study the environmental accumulation of trifluoroacetic acid(TFA) in several districts of the Yangtze River in Jiangsu Province,as well as in the Taihu Lake.An effective analytical procedure as well as a pretreatment technology was also set up to detect trace concentrations of TFA in the environment.About 300 data from above the study ... |
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| Keywords: | trifluoroacetic acid (TFA) GC-MS multiphase mass transfer model |
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