BigPatents India

The present invention relates to a process for removal of arsenic from contaminated or drinking water by use of mixture of steel wool and clean and dried river sand. The steel wool may be prepared from the waste generated by steel plant. The steel wool is crushed and is the mixed with clean and dried river sand. Water contaminated with different forms of arsenic is kept in contact with steel wool and sand mixture, taking about 15g of Mixture per one liter of contaminated/drinking water, for o approximately 2 hours in a thermostatic shaker, at around 35 C. The treated water is then filtered through clean sand at a constant flow rate of 2..... 4 litres per hour. The various forms of arsenic are removed from water to the extent of more than 99%.