Using activated carbon developed from Iraqi date palm seeds as permeable reactive barrier for remediation of groundwater contaminated with copper

الملخص EN

The possibility of using activated carbcn developed from date palm seeds wastes as a permeable reactive barrier (PRB) to remove copper frcsn polluted shallow groundwater was investigated The activated carbon has been developed from date palm seeds by dehydrating methods using concentrated sulfuric add Batch tests were performed to characterize the equilibrium scaption properties of new activated carbon in copper-containing aqueous solutions, while the sand)' soil (aquifer) was assumed to be inert.

Undo" die studied conditions, the I angmuir isotherm model gives a better fit for the sorption data of copper by activated carbon than other models.

At a pilot scale.

One-dimensional column experiments were performed, and an integrated model based on the soluti.cn of an adwcticn-reacticn-dispersicn mass balance equation, using COMSOL Multiphysics 3.5a software which is based on finite element method, was developed to stud)- the space and time concentrati.cn of copper within groundwater.

Experimental and numerical results proved that die PRB represents a potential role in die restriction of the copper plume migration.

Also, these results showed that die greater thickness of PRB results in a better treatment of copper and that the barrier starts to saturate with contaminant as a function of the travel time.

However, a good agreement between the predicted (theoretical) and experimental results with RMSE not exceeded the 0.08 proved these methods are effective and efficient tools in description of ccpper transport phenomena adopted here.