Study for the Production of Local Adsorbent from Tea Wastes for Removal of Zinc from an Aqueous Solution

Abstract

In this research the production of low-cost adsorbent from tea waste for removal of zinc from an aqueous solution was studied both batch and continuous experiments were conducted in order to investigate the behavior of produced adsorbent kinetic. A noticeable improvement in the surface area and other physical properties were recorded after exposing tea waste to charring process. In the batch experiments different dosage of adsorbent were used and the equilibrium isotherm was of favorable type for adsorbent. While, in continuous system different parameters were conducted such as (bed height, particle size, flow rate). Achieved optimum conditions as follow (bed height=2cm, particle size= 250µm, flow rate =0.25 L/hr). Removal degree efficiency of Zn reach to (99%). Increasing bed height will increase the breakpoint value. While, decreasing flow rate, particle size will increase breakpoint.