文章基本信息

标题：Application of Multivariate Statistical and Geochemical methods for Assessing of Groundwater pollution near controlled Landfill in Oum Azza area, NW Morocco
本地全文：下载
作者：A. Benabbou ; A. Benhoussa ; M. Fekhaoui 等
期刊名称：International Research Journal of Earth Sciences
电子版ISSN：2321-2527
出版年度：2015
卷号：3
期号：3
页码：9-14
语种：English
出版社：International Science Community Association
摘要：The concentration of various physicochemical parameters including heavy metals was studied in the water samples collected around the controlled landfill (Rabat, Morocco); in order to assess the hydrochemical hydro-chemical quality of groundwater and to study the possible impact of leachate percolation on groundwater quality. The high level of hardness and low concentration of heavy metals demonstrate strong mineralization of groundwater. In exception, lead shows in some wells higher concentrations than the WHO standard. The Piper diagram was used to identify geochemical processes occurring in the Oum Azza area. The Principal Component Analysis(PCA) technique was used to identify natural and anthropogenic factors, which are at the origin of three main classes of water proved including; calcium bicarbonate water Mg - HCO -Ca2 + -Mg2 + , sodium chloride- water Cl -Na and Cl - Ca2+ water. The results of PCA, hydro-chemical and geochemical interpretation suggest that the great variation in groundwater quality is influenced by the nature of the rock host which modifies significantly the water chemistry, with high concentration of NO, NO, NH, suggesting the possible negative impacts of the landfill leachate on groundwater quality. The excess of lead metal may have occurred from the percolation of leachate in the nearby landfill, processing the urban and industrial waste from the municipalities of Rabat. This investigation demonstrates that the hydrochemistry quality of groundwater of Oum Azza could be traced back to both natural and anthropogenic processes.
关键词：Groundwater;mineralization;heavy metals;controlled dump-site