Removal of heavy metals from waste water by date palm tree wastes \

الملخص EN

Wastes of the Iraqi date palm tree was used to study removal of heavy metal cations (Cu+2, Cd+2and Zn+2) from simulated artificial waste water using batch adsorption process.

The dried parts of the date palm wastes, were grinded to ≤ 1mm in size and used directly in different adsorbent / metal ion ratios, starting with metal ion concentration of (1000ppm) .

Influence of contact time, initial metal ion concentration, and adsorbent loading weight, on removal percentage were investigated ; experiments were carried out at room temperature.

25Co and pH value of (5-6) .

Date palm wastes succeeded to achieve 90% removal for Cu+2 ions, 57.5% for Cd+2 ions and 37.5% for Zn+2 ions within (60 min) contact time at adsorbent loading ratio of 30 g / l.

Removal values for mixed ions were lower due to competition and interaction between ions, (80% Cu+2, 51% Cd+2 and 33% Zn+2 ).