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京杭大运河(徐州段)砷的形态的分步特征研究
引用本文:李功振,许爱芹.京杭大运河(徐州段)砷的形态的分步特征研究[J].环境科学与技术,2008,31(1):69-71.
作者姓名:李功振  许爱芹
作者单位:1. 中国矿业大学环境与测绘学院,江苏,徐州221000
2. 徐州医学院公共卫生系,江苏徐州,221008
基金项目:教育部高等学校博士学科点专项科研基金
摘    要:文章对京杭大运河(徐州段)底泥中的11个样品进行研究,对底泥中的砷的总量和形态进行测定,结果表明砷的污染已经达到中度污染并且砷的形态大部分是以钙型和包裹态形式存在。分别采用总有机碳测定仪和X-衍射(XRD)测定11样品中有机碳(TOC)的含量和底泥的成分,结果表明底泥的成分主要有石英、石膏,部分或少量的长石、方解石和粘土矿物,底泥中的有机碳的含量不能决定砷的总量和形态的分布。

关 键 词:京杭大运河  底泥    总有机碳  徐州段
文章编号:1003-6504(2008)01-0069-03
收稿时间:2007-02-01
修稿时间:2007-04-03

Components of Sediments and species of Arsenic in Beijing- Hangzhou Grand Canal at Northern Section of Jiangsu Province
LI Gong-zhen,XU Ai-qin.Components of Sediments and species of Arsenic in Beijing- Hangzhou Grand Canal at Northern Section of Jiangsu Province[J].Environmental Science and Technology,2008,31(1):69-71.
Authors:LI Gong-zhen  XU Ai-qin
Abstract:18 bottom sediments from Beijing-Hangzhou Grand Canal at northern section of Jiangsu Province as research subject,contents and fractions of arsenic were analyzed by cold atomic fluorophotometry.Results showed that main fractions were Ca-As and O-As.X-ray was used for characterization of mineral composition,and minerals in the bottom sediments were mostly composed of quartz,gypsum and feldspar.No noticeable composition changes were observed from upstream to downstream,at different locations arsenic has different amount and different fractions,which couldn't be affected by TOC and composition of the bottom sediment.
Keywords:Beijing-Hangzhou Grand Canal  sediment  speciation of arsenic  total organic carbon
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