CAJ | 학술논문

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（ HCO3－）、（ρ（ Na＋）＋ρ（ K＋））／ρ（ Ca2＋），ρ（ Cl－）和pH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CaF2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pH的关系表明氟在碱性、偏碱性水中易于富集．
통과수문지질조사、현장채양、실내측시분석등방법，대안휘성수계현천층지하수중불적분포특정급영향인소진행연구．결과표명：수계현천층지하수양품초표솔체35．3％，불적질량농도ρ（ F－）최고체4．63 mg／L，주요분포우수계현중부평원지구；ρ（ F－）여ρ（ HCO3－）、（ρ（ Na＋）＋ρ（ K＋））／ρ（ Ca2＋），ρ（ Cl－）화pH치정정상관관계，이여온도、ρ（ SO2－4）화ρ（ Ca2＋）정부상관관계；Ca2＋여F－생성적CaF2침정시지하수중억제F－농도적주요물질，ρ（ F－）여ρ（ Cl－）적상관관계야표명천층지하수중적불수도인위인소적영향，동시ρ（ F－）여pH적관계표명불재감성、편감성수중역우부집．
The distribution and influence factors of fluorine in shallow groundwater in Suixi, Anhui, was stud-ied 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( HCO3-) , (ρ( Na+) +ρ( K+) )/ρ( Ca2+) ,ρ( Cl-) , pH value, and has a negative correlation with temperature,ρ( SO2-4 ) andρ( Ca2+) .CaF2 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 pH value confirms that fluorine is easier to enrich in an alkaline and slight alkaline water.