Development of Environmental Friendly Inhibitor for Corrosion Prevention of Mild Steel in Aerated Drinking Water system

Drinking water supply system is facing severe problems due to corrosion ofiron pipes. the factors that affect pipeline corrosion include water composition, flowconditions and biological activity. the inhibitive effect of murraya koenigii leaf (curryleaf) extract on the corrosion of mild steel in drinking water was studied using weightloss, open circuit potential measurements and potentiodynamic polarization techniques.the results show that murraya koenigii leaf extract is effective in inhibiting corrosion ofmild steel in drinking water system. as the concentration of the inhibitor in the mediumincreases, the inhibition efficiency increases. the percentage inhibitor efficiencycalculated based on weight loss method is found to be above 95% when the mediumcontains 400ppm of inhibitor. the presence of murraya koenigii leaf (curry leaf) extractin drinking water improves the quality of water in addition to prevent the corrosion ofiron pipes.