| Abstract |
| The aim of this study was to investigate the heavy metal removal using modified zeolite with magnesium (Mg-zeolite). Mg-zeolite adsorbed two fold higher Cd than that of K-zeolite. In addition, Mg-zeolite adsorbed successfully 100% of the Cd, As, Cu and Mn at the following optimal Mg-zeolite dosage: 30 mg/L for As and Cd, and 15 mg/L for Cu and Mn. The relationship between heavy metal concentration and amount of Mg-zeolite was determined highly linear; 0.9982, 0.9965, 0.9972 and 0.9964 for Cd, Mn, Cu and As, respectively. The bio-adsorbent, Mg-zeolite, can be a promising adsorption due to its high efficiency and low dose requirements. In addition, Mg-zeolite does not contaminate treated wastewater, which can be recycled to reduce not only the cost and the demand for water but also the extra operational costs for reusing wastewater. |
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| Key Words |
| Adsorption, Heavy metal ions, Mg-zeolite, Wastewater treatment |
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