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Hydrochemical Characteristic and Heavy Metal Distribution in Groundwater in Huaibei Plain, China

机译：淮北平原地下水化学特征及重金属分布

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摘要

This paper expands on the hydrochemical characterization of conventional and heavy metal ions in groundwater at three different depths in Huaibei Plain,China.44 groundwater samples were collected and the chemical parameters were measured in May,2005.Through the comparison of the major ions at shallow,middle and deep groundwater,the hydrochemical classifications change from HCO3 to HCO3-Cl type with the depths,and the distillation process in shallow groundwater,anthropogenic activities,and residual medio-Pleistocene groundwater could be the reason for the elevation of Cl.9 and 18 samples out of 44 exceeds the national drinking water standard set for iron and manganese respectively.The concentration of Fe in shallow groundwater is high in southeast and southwest of the study area,and the concentration of Mn is high in all over the area except for the northwest.This may because of the frequent agricultural activities and the component of the stone in some towns.Due to the reducing condition,high TDS at some points,and adsorption by some material such as clay,organic matter,fresh sediment etc.,the Fe content is higher in deep groundwater,while some sampling points has the higher Mn content in shallow groundwater.
机译：本文扩展了淮北平原三个不同深度的地下水中常规金属离子和重金属离子的水化学特征。2005年5月收集了44个地下水样品，并测量了化学参数。中，深层地下水，其水化学分类随深度从HCO3变为HCO3-Cl，浅层地下水的蒸馏过程，人为活动以及中更新世地下水的残留可能是导致Cl.9和Cl.9升高的原因。 44个样本中有18个样本分别超过了国家针对铁和锰制定的饮用水标准。研究区域的东南部和西南部，浅层地下水中的Fe浓度较高，除以下地区以外，其余地区的Mn浓度均较高。西北地区。这可能是由于频繁的农业活动和某些城镇的石材组成。而且，在某些点上TDS高，并且被粘土，有机物，新鲜沉积物等某些物质吸附，深层地下水中的Fe含量较高，而某些采样点浅层地下水中的Mn含量较高。

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