Study on the Effect of pH and Contact Time on the Adsorption Efficiency of Trivalent Arsenic (III) Ions from Aqueous Solutions Using Neem Leaf Powder (Azadirachta indica). م ع ش [Internet]. 2026 Apr. 19 [cited 2026 May 9];10(ملحق 39):595-603. Available from: https://cjos.histr.edu.ly/index.php/journal/article/view/1868