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Table 3

Pearson correlation coefficients for the removal of 0.5 mg/L Cr(VI) by 5 g of HZ sediments (n = 22)

Cr(VI) removal %Silt + Clay %LOI %pHSediment FeSediment SSediment Mn
Cr(VI) removal %       
Silt + Clay % 0.807      
LOI % 0.869 0.899     
pH −0.641 −0.594 −0.704    
Sediment Fe 0.510 0.527 0.463 −0.485   
Sediment S 0.711 0.611 0.725 −0.547 0.295  
Sediment Mn 0.353 0.336 0.356 −0.244 0.725 −0.071 
Cr(VI) removal %Silt + Clay %LOI %pHSediment FeSediment SSediment Mn
Cr(VI) removal %       
Silt + Clay % 0.807      
LOI % 0.869 0.899     
pH −0.641 −0.594 −0.704    
Sediment Fe 0.510 0.527 0.463 −0.485   
Sediment S 0.711 0.611 0.725 −0.547 0.295  
Sediment Mn 0.353 0.336 0.356 −0.244 0.725 −0.071 

The bold numbers indicate a strong to very strong correlation.

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