安徽省濉溪县浅层地下高氟水的分布特征及影响因素分析
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摘要
通过水文地质调查、现场采样、室内测试分析等方法,对安徽省濉溪县浅层地下水中氟的分布特征及影响因素进行研究.结果表明:濉溪县浅层地下水样品超标率达35.3%,氟的质量浓度ρ(F-)最高达4.63 mg/L,主要分布于濉溪县中部平原地区;ρ(F-)与ρ(HCO-3)、(ρ(Na+)+ρ(K+))/ρ(Ca2+),ρ(Cl-)和p H值呈正相关关系,而与温度、ρ(SO2-4)和ρ(Ca2+)呈负相关关系;Ca2+与F-生成的Ca F2沉淀是地下水中抑制F-浓度的主要物质,ρ(F-)与ρ(Cl-)的相关关系也表明浅层地下水中的氟受到人为因素的影响,同时ρ(F-)与p H的关系表明氟在碱性、偏碱性水中易于富集.
The distribution and influence factors of fluorine in shallow groundwater in Suixi,Anhui,was studied by using the methods such as hydrogeological survey,field sampling and laboratory experiment. The results demonstrate that the highest fluoride concentration of shallow groundwater is up to 4. 63 mg / L,with the exceeding rate of 35. 3% from a total number of 34 samples,which are mainly scattered around the central plain regions of Suixi county. Fluoride concentration is correlated positively with ρ( HCO-3),( ρ( Na+) + ρ( K+)) /ρ( Ca2 +),ρ( Cl-),p H value,and has a negative correlation with temperature,ρ( SO2-4) and ρ( Ca2 +). Ca F2 precipitation is the main substance to inhibit F-ion concentration in groundwater,the correlation of ρ( F-) and ρ( Cl-) shows that human factors also affect the fluoride concentration of shallow groundwater. The relationship between ρ( F-)and p H value confirms that fluorine is easier to enrich in an alkaline and slight alkaline water.
The distribution and influence factors of fluorine in shallow groundwater in Suixi,Anhui,was studied by using the methods such as hydrogeological survey,field sampling and laboratory experiment. The results demonstrate that the highest fluoride concentration of shallow groundwater is up to 4. 63 mg / L,with the exceeding rate of 35. 3% from a total number of 34 samples,which are mainly scattered around the central plain regions of Suixi county. Fluoride concentration is correlated positively with ρ( HCO-3),( ρ( Na+) + ρ( K+)) /ρ( Ca2 +),ρ( Cl-),p H value,and has a negative correlation with temperature,ρ( SO2-4) and ρ( Ca2 +). Ca F2 precipitation is the main substance to inhibit F-ion concentration in groundwater,the correlation of ρ( F-) and ρ( Cl-) shows that human factors also affect the fluoride concentration of shallow groundwater. The relationship between ρ( F-)and p H value confirms that fluorine is easier to enrich in an alkaline and slight alkaline water.
引文
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[22]范基姣,佟元清,李金黄,等.我国高氟水形成特点的主要影响因子及降氟方法[J].安全与环境工程,2008,15(1):14-16.
[2]吴泊人,王璐璐,赵卫东,等.安徽省淮北平原浅层地下高氟水分布规律及源分析[J].合肥工业大学学报:自然科学版,2010,33(12):1862-1865.
[3]刘永清.北京市通州区第四系地下水氟分布规律[J].北京水务,2008(3):28-31.
[4]曾昭华.地下水中氟形成的控制因素及其分布规律[J].吉林地质,1997,16(4):26-31.
[5]丁丹,许光泉,何晓文,等.淮北平原浅层地下水氟的水化学特征及影响因素分析[J].水资源保护,2009,25(2):64-68.
[6]曾溅辉,刘文生.浅层地下水氟的溶解/沉淀作用的定量分析[J].地球科学,1996,21(3):337-339.
[7]韩清.阿拉善荒漠天然水中氟的化学地理[C]//中国地理学会化学地理专业委员会.化学地理研究文集.北京:科学出版社,1985:9-19.
[8]金琼,王元定.甘肃河西走廊地区水中氟的分布规律及环境特征[J].甘肃农业大学学报,2001,36(3):310-315.
[9]刘进,许光泉.浅层地下水氟的水化学特征及其水文地球化学成因[J].中国农村水利水电,2010(4):33-35.
[10]秦兵,李俊霞.大同盆地高氟地下水水化学特征及其成因[J].地质科技情报,2012,31(2):106-111.
[11]王滨滨,郑宝山,廖昂.氟在土壤中的富集与淋滤[J].矿物学报,2010,30(4):496-500.
[12]李颖,李曼尼,刘晓飞.铁活化斜发沸石吸附水中氟的热力学研究[J].内蒙古大学学报:自然科学版,2005,36(4):405-410.
[13]张威,傅新锋,张甫仁.地下水中氟含量与温度、p H值、(Na++K+)/Ca2+的关系——以河南省永城矿区为例[J].地质与资源,2004,13(2):95,109-111.
[14]龚星,陈植华,陈彦美.冶金类建设项目地下水环境影响评价方法探讨[J].湖南科技大学学报:自然科学版,2013,28(1):102-108.
[15]唐受印,戴友芝,汪大翚,等.废水处理工程[M].2版.北京:化学工业出版社,2011.
[16]GAO X B,WANG Y X,LI Y L,et al.Enrichment of fluoride in groundwater under the impact of saline water intrusion at the salt lake are area of Yuncheng basin,northern China[J].Environ Geol,2007,53(4):798-803.
[17]RAO N V R,RAO N,RAO K S P,et al.Fluorine distribution in waters of Nalgonda District,Andhra Pradesh,India[J].Environ Geol,1993,21(1-2):84-89.
[18]SAXENA B K,AHMED S.Dissolution of fluoride in groundwater:a water-reaction study[J].Environ Geol,2001,40(9):1084-1087.
[19]SAXENA B K,AHMED S.Inferring the chemical parameters for the dissolution of fluoride in groundwater[J].Environ Geol,2003,43(6):731-736.
[20]RAO N S,DEVADAS D J.Fluoride incidence in groundwater in an area of Peninsular India[J].Environ Geol,2003,45(2):243-251.
[21]赵锁志,王喜宽,黄增芳,等.内蒙古河套地区高氟水成因分析[J].岩矿测试,2007,26(4):320-324.
[22]范基姣,佟元清,李金黄,等.我国高氟水形成特点的主要影响因子及降氟方法[J].安全与环境工程,2008,15(1):14-16.
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