Activated alumina is thermodynamically stable under anoxic conditions but As(V) gets reduced to As(III) which is poorly adsorbable onto AA.A reducing environment is, therefore, not conducive to
disposal of commercially available adsorbents upon exhaustion. The project demonstrates that the disposal of arsenic-laden solids on aerated sand filter is scientifically sound,easy to operate, and socially manageable in a remote rural environment.