Cement, Energy & Environment Jan-Mar 2002

Ministe1: Rajender Gupta, who is promoting the project. The biggest advantage of the technology is that unlike in compost plants it dispenses with segregation of plastic from the garbage. The remains after gasification can be used as manure. Since no burning takes place or waste matter is left, there is no air pollution. The plant will generate 25 megawatt (MW) of power from 1,000 tons of daily garbage (Delhi generates 6,000 tons of garbage every day). "Six such plants can be an answer to garbage management, and if everything proceeds as planned the first plant will start functioning by 2003," Mr Gupta added. to seven month's time. Lafarge will be sourcing its clinker from its quarries in Sonadih and Bilaspur both in Chattisgarh, for blending. fly ash cement at its plant. Its three existing units also make Portland slag cements with slag generated from integrated steel plants of Tata Steel and Steel Authority of India. Lafarge is also looking at other sites is eastern India to set up fly ash cement units adjoining thermal power stations, which ca~1 supply dry fly ash. Courtesy: Saket Industrial Digest jan 2002, P26 Email: saketprojects @vsnl. cum Web: www. Saketprojects.com The plant will cost over Rs 2000 million to BRICKS FROM MARBLE DUST build on the basis of Build Operate Transfer The Hindu Business Line, 12 December 2001 (BOT) system. Cowtesy: The Bulletin on Enc1gy Efficiency, Dec 2001, P4 E mail winrock@vsnl. com Web: www. renewingindia.org LAFARGE DVC JOINT VENTURE FOR CEMENT UNIT Lafarge and Damodar Valley Corporation have signed a memorandum of w1derstanding to set up a grinding unit to make one million tonnes of fly ash cement per annum at Mejia, near Durgapur in West Bengal at an estimated cost of around Rs 100 crore. This is the first production unit Lafarge will be setting up in the country and it will take up its cement production capacity here to around 6 million tonnes. DVC will supply from its Mejia thermal power station around 12.000 tonnes of fly ash per day to the proposed cement plant of Lafarge. With construction of the Mejia unit expected to start off by January 2002, the plant is expected to be commissioned in another six 52 Scientists at the Roorkee-based Central Building Research Institute have found a useful application for wastes generated in the marble industry. They have fabricated bricks and established feasibility to make a range of other products for use as building materials. The powders that are left as was te after the marble is cut and polished at centres where the stone is used as a building material have been analyzed for their composition. The marble dust contains particles of varying sizes along with dolomite and calcite minerals. There is a variability in the physical properties and chemical composition of the dust obtained from different units. These include masonry mortar, gypsum plaster– based blocks and boards that can be used for false ceilings, tiles, colour washes and cellular concrete. TIFAC ( Technology Information, Forecasting and Assessment Council) has initiated ·a major programme to explore the feasibility of converting the marble dust into useful products. The TIFAC project has led to the prototype development of tiles, which have been tested by established tile manufacturers, including Somany Pilkington, ' ,