The technology involves using high-pressure water jets to mine coal in place of conventional methods, which raise a lot of dust.

A global tender is expected to be invited soon for hydro-mining technology for Coal India Ltd.

The company sources said officials have studied the use of the technology in Germany, Russia and Poland and have discussed with German experts on the feasibility of using the technology under Indian conditions.

While the technology requires large investment initially, in the long run, experts claim, it would turn out to be more economical. The technology involves using high-pressure water jets to mine coal in place of conventional methods, which raise a lot of dust.

The use of water will be environment-friendly and will also be able to deal with underground fire and gas more effectively, point out experts.

D.C. Panigrahi of the Indian School of Mines said the technology could raise the production of coal substantially. Sources in the directorate of mine safety (DGMS) confirmed they have been sounded for using the technology at the various open-cast projects of Bharat Coking Coal Ltd.

Source : www.telegraphindia.com