India, Aug. 14 -- Redesigning the Okhla barrage at Yamuna to reduce the turbulence triggering froth formation, stopping solid-waste dumping and untreated industrial discharge, shutting dhobi ghats and improving the environmental flow are among six measures proposed to tackle recurring froth in the river, according to an action plan discussed at an interdepartmental meeting earlier this week.

The six-point plan identifies the Okhla barrage, waste and effluent discharge, floating vegetation and inadequate river flow as key areas requiring intervention.

The first measure proposes redesigning the Okhla barrage to moderate the "plunge and churn" created when water falls over the structure. The turbulence aerates water containing surfactants ...