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时间:2019-05-19
《兴隆庄采煤塌陷蓄水区重金属污染源分析评价》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、山东农业大学学报(自然科学版),2012,43(4):589—594JournalofShandongAgriculturalUIliversity(NaturalScience)兴隆庄采煤塌陷蓄水区重金属污染源分析评价任晨曦,翟伟2,林洪孝h,李玲,李广杰张银平,管西柯,张英杰,冯忠伦,刘炜伟(1.山东农业大学水利土木工程学院,山东泰安271018;2.山东省聊城市水利局,山东聊城252000)摘要:采煤产生的地面塌陷引发了诸多环境灾害,尤其是水环境受到污染后重金属危害备受关注,重金属经食物链的生物放大作用,对水生生物及人类造成毒害。为寻求兴隆庄采煤塌陷蓄水区重金属
2、污染来源,系统采集水样36个,并在水样采样点对应处设置相同数目的底泥采样点,同时采集近岸土壤,分别进行镉、铜、铅、铬、锌5项重金属指标的测定。与国家地表水质量标准比较,除蓄水区2、5镉含量超标外,其它重金属含量均在Ⅲ类水标准值内,说明塌陷蓄水区受到镉污染。以镉为例,结合塌陷水域周边环境,对塌陷蓄水、水体底泥、近岸土壤进行“三位一体”对比分析,结果表明塌陷蓄水区镉污染主要来源于矿业煤矸石污染、廖河地表径流污染。运用SPSS软件,探求镉、铜、铅、铬、锌的相关性,相关系数分别为r=0.963,r=0.861,r=0.935和r=0.816,呈现显著相关,说明这些重金属极有可
3、能具有相似的污染源,为治理和开发塌陷蓄水区提供依据。关键词:采煤;塌陷蓄水区;重金属;污染;来源;评价中图分类号:x524文献标识码:A文章编号:1000—2324(2012)04—0589—06ANALYSlSANDEVALUATIONONTHES0URCES0FHEAVYMETALP0LLU’noINXINGLONGZHUANGCOAL一删GINGSUBSIDEDWATERSTORAGEAREARENChen—xi,ZHAIWEI,LINHong—xiao’,LILing,LIGuang—jie;ZHANGYin—pingGUANXi—ke,ZHANGYing-j
4、ie,FENGZhong—lun,LIUWei—Wel‘(1.CollegeofWaterConservancyandCivilEnslneering,ShandongAculturalUniversity,Taian271018,China;2.LiaoehengIrriqationBueau,Liaoeheng252000,China)Abstract:Thegroundsubsidencecausedbycoalminingbringsmanyenvironmentaldisasters.Especiallythewa—terenvironmentpollute
5、dbyheavymetalsismuchpaidattentionto.Throughbiomagnificationofthefoodchain,waterwithheavymetalscouldpoisonaquaticorganismsandhuman.InordertosearchforthesourcesoftheheavymetalpollutioninXinglongzhuangcoal—miningsubsidedwaterstoragearea,thirtysixwatersamples,theS~rllenumberofsedimentsample
6、scollectedatthesamepositionsofthewatersamplingones,andthenear—shoresoilsampleswerecollected.Fiveheavymetalindexes,Cd,Cu,Pb,CrandZn,weremeasured.ItisfoundthatthecontentsofCdintheArea1and2exceedthepermittedlevelincomparisonwiththerelevantna-tionalstandard,whileothersarelessthanⅢstandardof
7、surfacewater,showingthatsubsidedwaterstoragear—eaispollutedbyCd.T00kCdforexample,combinedwiththesurroundingenvironment,water,sedimentandnear—shoresoilsampleswerecarriedthroughTrinitarianEvaluationAnalysis.ItisfoundthatCdpollutionmain-lycomesfromtheminingcoalganguepollutionandLi
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