11:20 〜 11:35 [AHW23-20] Numerical simulations (COMSOL) of γ-Fe2O3 nanohybrids for transport (3D) and arsenic removal in homogeneous porous media *Ajay Kumar1、Himanshu Joshi1、Anil Kumar1 (1.INDIAN INSTITUTE OF TECHNOLOGY ROORKEE, INDIA)