皖北地区浅层地下水水化学特征及水质评价——以宿州市某乡镇为例  

Hydrochemical Characteristics and Water Quality Assessment of the Shallow Groundwater of Northern Anhui Province——A Case Study of a Township of Suzhou City

作　　者：颜晓龙 马杰[1] 张玉洁 白秀秀 刘家乐 YAN Xiaolong;MA Jie;ZHANG Yujie;BAI Xiuxiu;LIU Jiale(Suzhou University,Suzhou 234000,China)

机构地区：[1]宿州学院,安徽宿州234000

出　　处：《河南科技》2022年第6期111-116,共6页Henan Science and Technology

基　　金：校级大学生科研立项入选项目(KYLXYBXM21-121、KYLXYBXM21-123、KYLXZCXM21-159、KYLXZCXM21-171);省级大学生创新创业训练计划入选项目(S202110379196、S202110379191);宿州学院校级教学研究项目(szxy2021ksjy03)。

摘　　要：为进一步掌握乡镇区域浅层地下水水化学特征及水质状况,以皖北宿州某乡镇32组浅层地下水为研究对象,运用Piper图、Gibbs图及多元统计分析,综合分析研究区浅层地下水水化学特征及水岩作用;利用USSL和Wilcox图解法,结合《生活饮用水卫生标准》(GB 5749—2006),对浅层地下水卫生状况进行评价。研究结果表明:研究区周边浅层地下水水化学类型以HCO_(3)-Ca型为主,pH范围为7.41~7.96,属于中性偏弱碱性水,TDS值的范围为244.00~624.00 mg·L^(-1),平均值为358.72 mg·L^(-1),属于淡水。阴、阳离子浓度由大到小依次为HCO_(3)^(-)>SO_(4)^(2-)>Cl^(-)和Na^(+)>Ca^(2+)>Mg^(2+)>K^(+)。离子来源与岩盐溶解、硫酸盐岩溶解、碳酸盐岩溶解、硅酸盐岩风化等作用有关。研究区水质均适于饮用或基本适于饮用,且基本符合灌溉要求,合理灌溉不会造成盐害与碱害。For mastering hydrochemical characteristics and water quality status of the shallow aquifer within a township,Suzhou city,Northern Anhui Province,a total of 32 shallow groundwater samples were collected and tested.Piper diagram,Gibbs diagram and multivariate statistical analysis were conducted to grasp the hydrochemical characteristics and water-rock interactions.With the help of USSL diagram and Wilcoxdiagram,combined with Standard for Drinking Water Quality(GB 5749-2006),the heath status of the shallow aquifer was evaluated.The results show that the hydrochemical type is mainly HCO_(3)-Ca.The pH ranges from 7.41 to 7.96,belonging to neutral and slightly weak alkaline water.The TDS varies between 244.00 mg·L^(-1) and 624.00 mg·L^(-1) ,with an average of 358.72 mg·L^(-1),which can be classified to freshwater.The concentration order of anion and cation is HCO_(3)>SO_(4)^(2-)>Cl^(-) and Na^(+)>Ca^(2+)>Mg^(2+)>K^(+),respectively.The sources of ions are related with halite dissolution,sulfate dissolution,carbonatedissolution,and silicate weathering.The samples are suitable or basically suitable for drinking,and also basically proper for irrigation,which is without salt and alkali damage under reasonable irrigation.

关 键 词：水化学特征 离子来源 水岩作用 水质评价 

分 类 号：X824[环境科学与工程—环境工程]