Use of Cl/Br Ratio to Determine Salinity Source of Groundwater:Lenjanat Plain, Isfahan, Iran
Ratio of conservative ions Cl/Br has been used to identify source of groundwater salinity in Lenj anat plain.For this purpose,groundwater was seasonally sampled.The results of field and laboratory measurements show that Chloride ion as an indicator of groundwater salinity,highly correlated with EC and elements Mg,Ca,Br and Sr.Concentration of chloride a gradually increase through groundwater flow direction of the borders (17.73 mgl-1) towards the middle parts (3475 mgl-1) of the plain.The trend of Br concentration changes is similar with Cl.Mass ratios of conservative elements Cl/Br for groundwater samples in Lenjanat plain is 329 in borders to 4492 in center of plain.Certain ratios and saturation index with geochemical graphs indicate that the dissolution of evaporation deposits (halite and gypsum) and cation exchange are the most important processes affecting the chemical composition of groundwater.According to these results,the data obtained from the ratio of Cl/Br in Lenjanat groundwater samples,confirms the reported Cl/Br ratio for groundwater affecting by the dissolution of evaporation deposits and overlap with range of Cl/Br ratio for domestic sewage effluent groundwater.
Groundwater salinity Cl/Br ratio Lenjanat plain
Hamid Reza Nassery Zahra Kayhomavoon
Faculty of Earth Sciences,Shahid Beheshti University,Tehran,Iran
国际会议
Conference on Environmental Pollution and Public Health (2012年环境污染与大众健康学术会议(CEPPH2012))
上海
英文
743-746
2012-08-09（万方平台首次上网日期，不代表论文的发表时间）