Dollar Industries, one of the leading brands in the hosiery sector with an enviable 15 per cent market share and a good percentage in textile exports of the total production in the Indian hosiery market, has a 1000 kilolitre zero liquid discharge (ZLD) effluent treatment plant to treat water for captive use and correspondingly reduce its reliance on municipal sources.Vinod Kumar Gupta, Managing Director, Dollar Industries, speaks on its ZLD plant set up and wastewater treatment and technologies in India.