ARSENIC REMOVAL FILTER USING IRON POWDER, FERRIC HYDROXIDE COATED RICE HUSK ASH

摘要

The present invention provides an apparatus and method for removing contamination of iron and Arsenic from the drinking water. The said apparatus comprises dual filter stage i.e. pre-filter stage and main filter stage, wherein the pre-filter removes iron floes and maintained pH to 6.0-8.5 range. This pH helps in improvement of the adsorption capacity of ferric hydroxide coated RHA. The said apparatus also removes clogging of filter from iron particles via a pre-filter stage.