Low Cost Water Purification Technique

Clean water use being a prime concern in many communities of developing countries. Contaminated water plays significant role in taking numerous lives in these localities, for which a number of efforts are being made for accessing safe purified drinking water. Fortunately, efficient and cheap water purification systems are being utilized and being tried to be accessed worldwide for easy access to clean water. In the following project we had tried to develop a “Low Cost Water Purification Technique� using the basic ideas of Slow Sand Filter, some locally available filter material like charcoal, bone char, sand, manganese modified sand, clay, rice husk, banana residue ash, anthracite and try to improve the methodology using the UV Filter, RO Filter, and Activated Carbon Filter mechanism. Main focus was removal of turbidity from surface water by adsorption and oxidation followed by precipitation technique. Rice husk, which considered a waste, has a high level of silicon. This paper investigates the use of carbonized rice husk and wood charcoal in water purification. The carbonization was done using a handmade carbonizer. The preparation process starts with the production of a precursor that is rich in carbon through the pyrolysis of the rice husk in an inert atmosphere. The results show an important contribution of the use of carbonic materials, by giving a direct evidence of the permanence of sodium ion Na+ in activated carbon. The results also show that the utilization of wood charcoal and rice husks in the purification of water is quick, efficient and economically viable.