Abstract
Crab shell particles were tested for its capacity to remove Pb2+ and Zn2+ ions from the aqueous solution and evaluated in a batch reactor. The binding of Pb2+ and Zn2+ ions with crab shell particles was found to be affected significantly by pH, with optimal sorption observed at pH 4.5. The influence of temperature on metal uptake showed that sorption process is favorable at room temperature and increasing the temperature decreases the Pb2+ and Zn2+ ion uptake. The effect of co-ions (Na+, Ca2+, K+, and Mg2+) in addition to Pb2+ and Zn2+ ion present in the aqueous solution was also studied. The results obtained were modeled with multilayered perceptron (MLP) and compared with other standard models like Langmuir model, Freundich model, Redlich–Peterson model and Sips model. Result shows that MLP can be efficiently used to model the biosorption system.
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