| 矿业污染土壤中还原态硫的测定方法探讨 |
| |
| 引用本文： | 王莉霞,陈同斌,雷梅,武斌,廖晓勇,翟丽梅.矿业污染土壤中还原态硫的测定方法探讨[J].环境科学学报,2008,28(12):2522-2526. |
| |
| 作者姓名： | 王莉霞 陈同斌 雷梅 武斌 廖晓勇 翟丽梅 |
| |
| 作者单位： | 1. 中国科学院地理科学与资源研究所环境修复中心,北京,100101;中国科学院研究生院,北京,100049
2. 中国科学院地理科学与资源研究所环境修复中心,北京,100101 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)
|
| |
| 摘 要： | 铬粉还原法(SCr)常用于酸性硫酸盐土和河流底泥中还原态硫的测定,其能否应用于矿业污染土壤中还原态硫的测定还有待检验.选取矿渣污染土壤和未污染土壤,添加不同浓度的黄铁矿培养15 d后采用SCr法测定其消化时间和土壤预处理方法的回收率.研究表明:SCr法可应用于矿业酸化土壤中还原态硫的测定,消化时间达到20 min时,不同含硫浓度的处理中还原态硫回收率在95%-105%之间.说明消化20 min即可满足SCr法测定还原态硫的要求.不同预处理方法的比较表明:采用80℃快速风干处理和真空冷冻干燥处理,土壤样品的还原态硫回收率均能达到满意的要求,而采用传统的自然风干处理会使土壤还原态硫的测定结果偏低.因此,测定矿山污染土壤的还原态硫时,可以采用真空冷冻干燥处理或80℃快速风干处理.消化时间为20 min即可.
|
| 关 键 词： | SCr测定方法 消化时间 预处理方式 矿业污染土壤 黄铁矿 |
| 收稿时间： | 1/15/2008 3:45:23 PM |
| 修稿时间： | 2008/1/27 0:00:00 |
Method to determine chromium reducible sulfur in pyrite-containing soils polluted by mining activity |
| |
| WANG Lixi,CHEN Tongbin,LEI Mei,WU Bin,LIAO Xiaoyong and ZHAI Limei.Method to determine chromium reducible sulfur in pyrite-containing soils polluted by mining activity[J].Acta Scientiae Circumstantiae,2008,28(12):2522-2526. |
| |
| Authors: | WANG Lixi CHEN Tongbin LEI Mei WU Bin LIAO Xiaoyong and ZHAI Limei |
| |
| Institution: | 1. Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101,1. Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049,Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101 and Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101 |
| |
| Abstract: | |
| |
| Keywords: | chromium reducible sulfur digest time pretreatment process mining-polluted soil pyrite |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
