SOME ASPECTS OF CORROSION AND ITS CONTROL IN TUBEWELLS.

Abstract

Groundwater recovery through tubewells is a major source of drinking water for rural as well as urban communities in India. Although the average life expectancy of a tubewell may vary from 15 to 20 years (with a maximum of 40 years), some fail earlier because of poor design, incrustation of screens and corrosion. The problem of corrosion in tubewells and its remedy, which is often neglected, is in India primarily due to the quality of water, other factors being the composite materials in pipes and pumps, and the nature of soil. In addition to economic losses, corrosion in tubewell causes several management problems. Attention is drawn to the causes of corrosion in well and experiences in limiting corrosion through control measures are briefly reviewed.