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时间:2017-11-30
《黄河故道兰考段地下水水化学特征_仝长水》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、36工程勘察GeotechnicalInvestigation&Surveying2011年第12期黄河故道兰考段地下水水化学特征1,21222仝长水,靳孟贵,王献坤,杨晓双,刘海风(1.中国地质大学(武汉)环境学院,武汉430074;2.河南省地质调查院,郑州450001)摘要:为了基本查明黄河故道兰考段地下水水化学特征,采集代表性地下水样进行了27项无机指标和37项有机指标测试,结果表明,兰考县地
2、下水水化学类型多数为HCO3-Na·Ca·Mg型水,咸水、微咸水、高铁、高锰、高氟等原生劣质水均有分布;其中,黄河故道区水质较好,背河洼地区和县城周围水质较差;县城周围浅层地下水已经受到污染,污染组分主要是总硬度、总溶固和-NO;检测的37项有机指标中,甲苯为本区普遍分布的有机物,县城西南部多种有机组分均有检3出,提示存在工业或生活污染源,但各点含量均较低,没有超过生活饮用水标准;有机氯农药总六六六和滴滴涕检出点数较多,与兰考县地处黄河故道,地表岩性颗粒较粗,地下水防污性能较差有关。关键词:黄河故道;
3、兰考段;地下水;水化学特征中图分类号:P641.3文献标识码:AChemicalcharacteristicsofgroundwaterinLankaosectionalongabandonedareaofYellowRiver1,212222TongChangshui,JinMenggui,WangXiankun,YangXiaoshuang,LiuHaifeng,LiPing(1.SchoolofEnvironmentalStudies,ChinaUniversityofGeosciences,W
4、uhan430074,China;2.HenanInstituteofGeologicalSurvey,Zhengzhou450007,China)Abstract:InordertoidentifythechemicalcharacteristicsofgroundwaterinLankaosection,anabandonedareaofYellowRiver,therepresentativegroundwatersamplesareextracted27kindsofinorganicinde
5、xesand37kindsoforganicindexes.TheresultshowsthatthemaintypeofgroundwaterqualityisHCO-Na·Ca·Mg,andismixedbymanykindsofprimitiveoriginalpoorqualitywater,suchas3brackishwater,hotmetal,highmangawater,high-fluorinewaterinLankaocounty.Groundwaterqualityhasazo
6、nalcharacteristicwhichisgoodintheabandonedareaofYellowRiver,andpoorinlow-lyingareasthatbackaroundtheriverandtheareaaroundthecounty.Meanwhile,shallowgroundwateraroundthecountyhasbeencontaminated,andthemainpollutioncomponentsaretotalhardness,totaldissolve
7、d-solidandNO.Theorganicswidespreaddistributedinthestudyareaistoluenewhichhasbeendetected3fromavarietyoforganiccomponentsinsouthwestcounty.Asaresultofthattheremaybesourcesofindustrialorlife.However,thelowercontentofeachpointdoesnotexceeddrinkingwaterstan
8、dards.MoresamplesaredetectedBHCandDDT,relatingtotheLankaocountywhichislocatedintheYellowRiver,thecoarsesurfacelithologyandthepoorantifoulingperformanceofgroundwater.Keywords:abandonedareaofYellowRiver;Lankaosection;groundwater;ch
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