Assessing groundwater stoichiometric composition and its suitability in Northwestern Bangladesh

作者：Islam Jahidul; Hakim Abdul^*; Hanafi Mohamed Musa; Juraimi Abdul Shukor; Sarkar Ratna Rani; Hossain A K M Mosharof; Chowdhury Indira; Ali Jafor; Kashem Abu

来源：Ciencia Rural, 2014, 44(7): 1210-1218.

DOI：10.1590/0103-8478cr20130712

• groundwater
• suitability
• northwestern Bangladesh

Groundwater quality analyses included pH, EC, cations (Ca2+, Mg2+, Na+,K+, Zn2+, Cu2+, Mn2+, Fe3+ and As3+), anions (CO32-, HCO3-, NO3-, SO42-, PO43- and Cl-) and TDS of northwestern Bangladesh. The samples contained Ca2+, Mg2+ and Na+ as the dominant cations and HCO3- and Cl- were the dominant anions. Ratios of major cations and anions of water samples suggest the predominance of Ca and Mg-containing minerals over Na-containing minerals. According to TDS and SAR values, all samples were classed as %26apos;freshwater%26apos; and %26apos;excellent%26apos; categories. The SSP of all waters was under %26apos;excellent%26apos; and %26apos;good%26apos; classes. All samples were within %26apos;soft%26apos; class regarding hardness with %26apos;suitable%26apos; RSC. Based on As3+, Zn2+, Mn2+, Fe3+, SO42-, NO3-, and Cl- all groundwater samples were within the %26apos;safe%26apos; limit for drinking but unsuitable for some industries for specific ions.

• 出版日期2014-7