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瓶装饮用水的水化学、同位素特征及其指示意义     被引量:8

Hydrochemical and Isotopic Characteristics of Bottled Drinking Water and Its Instruction Significance

文献类型:期刊文献

中文题名:瓶装饮用水的水化学、同位素特征及其指示意义

英文题名:Hydrochemical and Isotopic Characteristics of Bottled Drinking Water and Its Instruction Significance

作者:姜海宁[1] 谷洪彪[1] 于一雷[2] 迟宝明[1] 王贺[1] 周经纬[1]

第一作者:姜海宁

机构:[1]防灾科技学院;[2]中国林业科学研究院湿地研究所

年份:2015

卷号:43

期号:4

起止页码:403-414

中文期刊名:地球与环境

外文期刊名:Earth and Environment

收录:CSTPCD;;CSCD:【CSCD2015_2016】;

基金:河北省高等学校青年人才拔尖计划项目(BJ201403)

语种:中文

中文关键词:瓶装饮用水;水化学特征;氢氧同位素;大气降水线;影响因素

外文关键词:bottled drinking water,water chemical characteristics ; isotope ; Meteoric Water Line; factor

分类号:P641

摘要:通过对四类(天然矿泉水、纯净水、矿物质水、苏打水)36种品牌瓶装饮用水的水化学与同位素组成的分析,研究了各瓶装饮用水的水化学和同位素组成特征、水文地球化学形成作用及其水源补给循环特征。研究结果表明:瓶装饮用水的TDS变化幅度较大(7.26~638.23mg/L),纯净水和矿物质水的TDS较低(7.26~47.5mg/L),水化学类型以HCO3-Na型为主,其次为HCO3-Ca·Na型和HCO3-Ca型,Gibbs图和离子比例系数揭示了各类饮用水水源在形成过程中所发生的水化学作用;瓶装饮用水中氢氧同位素组成变化幅度较大(δD:-160.21‰^-43.96‰,δ18 O:-20.91‰^-6.00‰),其同位素组成均分布我国大气降水线附近,表明各饮用水水源主要来自于大气降水补给,西南地区水样中氢氧同位素较为贫化(δD:-160.21‰^-83.83‰,δ18 O:-20.91‰^-11.58‰),东南和华北地区则较为富集(δD:-79.68‰^-43.96‰,δ18 O:-10.9‰^-6.00‰),除东北和西北地区,其他地区氘盈余(d值)均低于全球雨水的平均值10‰,反映各水样的补给水源在形成过程中受到蒸发作用的影响;高程和温度与氢氧同位素有较好的相关性,随高度增加或温度降低,瓶装饮用水中δ18 O逐渐贫化。
This paper analyzes chemical and isotopic composition of the four types (natural mineral water, pure water, mineral water, soda water) and 36 kinds of brands of bottled drinking water, studies composition characteristics of hydrochemical and isotopic, hydrogeochemistry action and its water supply cycle characteristics. Results show that the total dissolved solids (TDS) of bottled water fluctuates apparently (7.26 638.23 mg/L), and the TDS of purified water and mineralized water are relatively low (7.26-47.5 mg/L). The hydrochemical type is mostly HCO3 Na, followed by the HCO3-Ca and the HCO3-Ca . Na. Gibbs graph and the ratio coefficient of the main ions reveal the water chemistry effect during the formation of drinking water sources. The composition of hydrogen and oxygen isotopes of bottled drinking water varies greatly (SD - 160.21‰-43.96‰δ18O -20.91‰ -6.00‰). The composition of isotopes is equally allocated around our country's Meteoric Water Line, showing that the majority of water sources is coming from rainwater. The hydrogen and oxygen isotopes are scarce in the water sample of the Southwest of China (δD -160.21‰-83.83‰δ18O --20.91%-11.58‰), but are rich in the water samples of southeast and north regions (δD -79. 68‰-43. 96N0, δ18O-10. 9‰-6. 00‰). In addition to the northeast and northwest areas, deuterium excess (d value) is lower than the average value of 10‰ of global rainfall, which re flects that the variety of water recharge of water sources is affected by evaporation. Altitude and temperature are highly related with hydrogen and oxygen isotope, as that the higher the altitude is or the lower the temperature is, the lower the δ18O of hot tled water will be.

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