The removal of captan (N-trichloromethyl thio tetrahydropthalamide) from aqueous solution was studied by using super-paramagnetic nano iron oxide loaded poly (styrene-co-acrylic acid) hydrogel as adsorbent by batch and column method. Adsorption equilibrium was investigated as a function of initial pH, adsorbent dose, time, concentration, bed height and flow rate. Equilibrium data fitted well to Langmuir equilibrium model and BDST model. The synthesized co-polymer was magnetized insitu and the size, structure and coating of magnetic nano particles was characterized by TEM, XRD and FTIR analysis respectively.
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