Environment and Disaster Management › Waste and circular economy

Circular economy and resource efficiency

The circular economy as policy and practice: repair and reuse, scrappage, recycled materials, industrial residues put to use, and the forums where countries compare notes. Prelims has asked about the uses of steel slag and what a circular economy reduces.

Foundation note: Circular economy: the principles and India's instruments

Showing 1 of 3 articles, those that changed from 1 to 30 June 2026.Show all

Fly ash by rail

Prelims

Fly ash, a by product of thermal power, is both a waste needing safe management and a resource for roads, bricks and cement.

Roads and cement take nearly three fifths of the fly ash that is used, and both need it moved from the power plant to the site.

What changed

19 Jun 2026BriefThe Railways plan a dedicated logistics network with special containers moving between trains and road trailers to carry the nearly 340 million tonnes of fly ash produced each year, against about 13 million tonnes moved now. The Indian Express, 19 Jun 2026: Why Indian Railways is creating a new network for 340 million tonnes of fly ash (opens in a new tab)

Also filed elsewhere

GOBARdhan · on Hydrogen and bioenergy
GOBARdhan, Galvanizing Organic Bio Agro Resources Dhan, began in 2018 under the Swachh Bharat Mission (Grameen) as a programme for turning cattle dung and farm waste into biogas and manure, and supply was first sought through SATAT, Sustainable Alternative Towards Affordable Transportation, the 2018 scheme under which oil companies buy compressed biogas from private plants, which left more than 200 plants running.