Abstract
Arsenic’s history in science, medicine and technology has been overshadowed by its notoriety as a poison in homicides. Arsenic is viewed as being synonymous with toxicity. Dangerous arsenic concentrations in natural waters, especially in ground water has become a worldwide problem and often referred to as a 20th–21st century calamity. The current regulation of drinking water standard has become more stringent and requires arsenic content to be reduced few parts per billion. There are numbers of arsenic removal methods, which include coagulation followed by view precipitation, membrane separation, anion exchange, adsorption etc. Some low-cost adsorbents are superior including Dry plants, red mud, fly ash, zeolites, blast furnace slag’s, hydrotalcites, hydroxides and various bio-adsorbents are include bio-char , methylated yeast biomass , fungal biomass , chicken feathers , alginate etc. The use of low-cost adsorbent obtained from an environmentally friendly materials, has been investigated as a replacement for the current expensive methods of removing arsenic from solution. Natural materials or waste products from certain industries with a high capacity for arsenic can be obtained, employed, and disposed of with little cost
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