Fly Ash

Judgment of the National Green Tribunal regarding plywood factories operating in Yamuna Nagar, Haryana, 27/05/2025

Judgment of the National Green Tribunal, May 27, 2025 in the matter of Sumit Saini Vs Shree Ram Steel Industries & Others. Sumit Saini, resident of village Damla, District Yamuna Nagar, Haryana had sent a letter petition dated May 14, 2022 to the NGT. The application said that around 25 …

A quest for black gold

Concerned about the pollution from combusting coal to generate power, the departments of science and technology and coal have set up a core group of bureaucrats and scientists to identify clean-coal technologies. Under the chairpersonship of R K Sachdeva, advisor in the ministry of coal, the group intends to draw …

Ash less coal

INDIAN thermal power stations consume about 150 million tonnes of coal each year, generating some 50 million tonnes of highly-polluting fly ash. Particles of fly ash suspended in the atmosphere carry small amounts of toxic lead, arsenic and mercury. Fly ash from Delhi's 2 thermal power stations at Indraprastha and …

Taking off on flyash

Worried by rising flyash production in power plant- expected to touch 100 million tonnes today - the department of science and technology(DST) has initiated a project to dispose and utilise flyash. To be implemented by DST's Technology and Information Forecasting and Assessment Council, the exercise will involve the power industry, …

Choking slowly to death

WHEN ABOUT 200,000 litres of furnace oil spilled into the Damodar river from the Bokaro Steel Plant on April 2, 1990, it took the authorities four days to wake up to the disaster. By then, the oil had travelled about 150 km downstream to Durgapur and for at least a …

Making cement production less polluting

PORTLAND cement may acquire a new, environmentally friendly, chemical composition. Researchers are focussing on how to reduce emissions from cement manufacture and also use less energy. Another area of research that has emerged recently examines the use of bauxite (aluminiuni oxide) and wastes such as fly ash, scrap iron and …

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