锑矿区水体水环境锑污染及硫同位素示踪研究.pdf

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1、矿物岩石地球化学通报·研究成果·BulletinofMineralogy，PetrologyandGeochemistryVo1．30No．2。Apr．2011锑矿区水体水环境锑污染及硫同位素示踪研究宁增平，肖唐付，杨菲，贾彦龙，孙嘉龙，何立斌1．中国科学院地球化学研究所环境地球化学国家重点实验室，贵阳550002；2．中国科学院研究生院，北京100049摘要：本文系统研究了贵州省半坡锑矿区水环境锑污染现状，用硫同位素指示采矿活动对矿区水体的影响，以查明锑矿区水环境中Sb的释放迁移过程和水污染程度。研究发现，矿区水体中Sb和soX含量分别高

2、达1377g／L和1926mg／I；岔河下游近10km处仍保持较高水平(182．5／~g／LSb和59．8mg／LSO；一)。岔河水体中，s—Sb、s-so{和Sb—s0；间均具显著正相关，相关系数分别为r一0．68(p

3、文献标识码：A文章编号：10072802(2011)02—0135—07AntimonyPollutionandSulfurIsotopeStudyintheWatersofanAntimonyMineareaNINGZeng—ping，XIAOTang—fu，YANGFei，JIAYan—long～，SUNJia—long～．HELi—bin'1．StateKeyLaboratoryofEnvironmentalGeochemistry，InstituteofGeochemistry，ChineseAcademyofSciences，Gu

4、iyang550002，China；2．GraduateSchoolofChineseAcademyofSciences，Beijing100049，ChinaAbstract：ThisstudyinvestigatedthepollutionstateofantimonyinthewatersofanantimonyminelocatedinBan—po，GuizhouProvince，andtracedthepollutantsusingsulfurisotope．Themaingoalsofthisstudyaretoclearthe

5、geochemicalprogressescontrollingthefateandthetransferofantimonyandtobetterunderstandthecurrentpollu—tionstateoftheriversinthisantimonyminearea．TheresultsshowedthatthewatersaresufferingfromseriouspollutionwithSbandSOconcentrationsbeingupto1377t~g／Land1926mg／L，respectively．T

6、hedownstreamwateroftheChaheRiver，10kmawayfromtheminearea，stillcontainshighconcentrationsofSbandSO．InChaheRiver，。S-Sb，6。S-SO~一andSb—sO一areremarkablypositivelycorrelated，thecorrelationcoefficientsarer一0．68(p

7、elationssuggestthat63SinthedissolvedsulfateandtheconcentrationofS0一canwel1reflectthewaterpollutionstateandthedif—fusiondistanceofantimonyintheChaheRiver．Accordingtothecalculationofisotopemassbalance，thesulfurinthedownstreamofthemineareaaremainlyformantimonydeposit，whichimp

8、liesthatthewaterqualityinthemineareaissignificantlyaffectedbyminingactivities．Keywords：mi