Estimation of the chemical content concentrations of anions and cations prevalent in Lake Qabroun water and salts, in Fezzan region, south of Libya

Abstract

This environmental study was conducted on Lake Qabroun, located in the south of Libya, west of Sebha city. This study aims to estimate the physical properties such as pH, electrical conductivity, total dissolved salts in addition to estimating the chemical content of anions and cations by titration, colorimetric methods using reagents, UV-Vis and X-Ray fluorescence Spectrometric methods.

Results showed that, the pH values ​​ranged between 9.23-9.28, while the electrical conductivity ranged between 151-152.9 ds/m, and the total dissolved salts ranged between 97152-97536. The concentration of the anions (Cl^1-, SO₄^2-, NO₃^1-, NO₂^1-, CO₃^2-, HCO₃^1-), and TH, ranged between 70190-70027, 1245.50-1288.01, 1.3-1.5, 1.5-1.9, nl, 7.00-7.81, and 66-76), respectively. Chloride and sulfate ions were the predominant anions. The chemical content of the Lake Qabroun water was varied in terms of acid cracks, anions and cations. Salts of Lake Qabroun contain a group of heavy metals such as nickel, iron, copper, zinc, lead, radon, osmium, strontium, and yttrium in a concentration ranged between 11-1170 mg/L). No carbonate and bicarbonate were reported.