Skip to Main Content

The coefficient of determination obtained from the plot of the Langmuir isotherm model (graph not shown) indicates a value of 0.92, which is less compared with the value obtained from the Freundlich isotherm model. The large value of b indicates that there is a strong bonding between zinc and the MISCBA adsorbent. The RL value of 0.1 obtained shows that the adsorption of zinc ions into the MISCBA is favorable. The maximum adsorption capacity of the adsorbent was found to be 28.6 mg/g, which was better than some ACs prepared from low cost materials as reported in the literature (Table 3).

Table 3

Comparison of zinc removal by MISCBA with other adsorbents

Operational conditions
Adsorption
S/nAdsorbentspHTime (h)Dosage (g/L)Capacity (mg/g)Removal efficiency (%)Reference
Phaseolus aureus hulls 7.0 0.5 6.5 21.2 99.2 Rao et al. (2009)  
MISCBA 6.0 10 28.6 89.7 This study 
Van apple pulp 5.0 – 11.72 78 Depci et al. (2012)  
Low cost adsorbents 6.0 20 11.24 – Mishra & Patel (2009)  
Moringa oleifera 6.0 10.94 63.9 Helen Kalavathy & Miranda (2010)  
Dried activated sludge 5.0 17.86 43.7 Yang et al. (2010)  
Operational conditions
Adsorption
S/nAdsorbentspHTime (h)Dosage (g/L)Capacity (mg/g)Removal efficiency (%)Reference
Phaseolus aureus hulls 7.0 0.5 6.5 21.2 99.2 Rao et al. (2009)  
MISCBA 6.0 10 28.6 89.7 This study 
Van apple pulp 5.0 – 11.72 78 Depci et al. (2012)  
Low cost adsorbents 6.0 20 11.24 – Mishra & Patel (2009)  
Moringa oleifera 6.0 10.94 63.9 Helen Kalavathy & Miranda (2010)  
Dried activated sludge 5.0 17.86 43.7 Yang et al. (2010)  

Close Modal

or Create an Account

Close Modal
Close Modal