Investigation into Actual Conditions of Emission of Fossil Fuel Combustion on the Middle Latitudes of the World for Environmental Preservation

世界中纬度地区化石燃料燃烧排放实际情况调查以保护环境

基本信息

批准号：
15404008
负责人：
MOTONAKA Junko
金额：
$ 7.55万
依托单位：
The University of Tokushima
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

Lots of cities in the middle latitudes of the world often have some environmental problems of pollution such as suspended particle matters, NOx, and photochemical oxidant. The pollution is caused by emission of pollutant due to their high economic activities and large population. Most of the environmental pollution has mainly been caused by fossil fuel combustion. Therefore, we focused on the research for the emission of fossil fuel combustion at Tokushima and Bucharest which were selected as the typical cities in the middle latitudes of the world. First, we investigated the atmospheric pollution caused by airborne particulate matter with heavy metals and as a result, about 41 elements in the reference material could be determined. The fractional distribution factors and enrichment factor of analyte elements of major-to-ultratrace elements were estimated from the analytical results. The enrichment factor (EF) of Pb in Bucharest was higher than that in Japan because of the use of leaded … More gasoline. Furthermore, EFs of Cu,Cd and Ag in Bucharest were higher than that in Tokushima. We also developed the catalyst, which was prepared from oxide of noble metals, for removing of NOx and particle matter.We investigated a recovering method of heavy metals from aquatic environmental samples because of cleaning of polluted aquatic environment. The recovering method of heavy metals includes liquid extraction by using ionic liquids. They have excellent features for low environmental load thorough extraction process. In the study, the extraction of heavy metals in aquatic samples using ionic liquid containing a chelator agent was examined. The quinoline was utilized as the chelator to extract heavy metal ions by liquid/liquid extraction with ionic liquids. The extraction efficiencies of Cu,Zn,Cd and Mn increased as the concentration of the quinoline in ionic liquid increased. These elements could be quantitatively extracted at the 8HQ concentration of 2000 mg I-1 and higher, although Cr(VI) was hardly extracted. Furthermore, the extraction behavior with all ionic liquids show similar tendencies that the extraction efficiencies obtained by this extraction method strongly depend on the chelating ability of the metal ions to the 8HQ ligand. Less

世界上的许多城市通常都有一些污染的环境问题，例如悬浮的粒子氧化剂是由于环境污染而引起的。在Tokyoshima和Bucharest Wheleche上被选为世界中纬度的典型城市，这是由空气中的物质带有重金属和aresult的作用分布因子和分析估算的主要启动元素的封底因子。 ts。在布加勒斯特上的富集因子（EF）在日本的高度……更多的汽油，CU，CD和AG Charest的EF比在Toushima中更高。为了去除NOX和粒子，我们研究了污染的液化方法，包括液体的液体液体用液体/液体/液体萃取用INIC液体提取重金属离子。此外，带有液体的提取行为显示出以这种提取方法获得的提取提取的萃取液，这很大程度上取决于金属离子对8HQ配体的螯合能力。