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Table 2

Comparison of Cd(II) maximum adsorption value of different adsorbents

AdsorbentAdsorption capacity (mg/g)Reference
Castor seed hull 5.8 Sen et al. (2010)  
Rice husk ash 6.57 El-Said et al. (2010)  
Cashew nut shell 14.29 Tangjuank et al. (2009)  
Jack fruit seed carbon 0.66 Kannan & Veemaraj (2010)  
Willow root 1.28 Chen et al. (2013)  
Bacterial modified red mud 83.03 Kalkan et al. (2013)  
Coal gangue based zeolite NaX 38.61 This study 
AdsorbentAdsorption capacity (mg/g)Reference
Castor seed hull 5.8 Sen et al. (2010)  
Rice husk ash 6.57 El-Said et al. (2010)  
Cashew nut shell 14.29 Tangjuank et al. (2009)  
Jack fruit seed carbon 0.66 Kannan & Veemaraj (2010)  
Willow root 1.28 Chen et al. (2013)  
Bacterial modified red mud 83.03 Kalkan et al. (2013)  
Coal gangue based zeolite NaX 38.61 This study 
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