Cement, Energy and Environment

.- ......, - · ~ -. 25%-3m 1 o of the power requirement of a plant. However, the Indian cement industry is yet to make a beginning in this direction due to the exis tence of various technologies and schemes for cogen eration, recent d evelopments and evaluation of these technologies/schemes and highlights the various technical considera tions, which should be studied in depth for the design o f the heat exchanger and the cogeneration scheme for the installation of a cogenera tion system in a cement plant. Courtesy : TIDE (TERI Information Digest on Energy) Vol 11, N umber 4 (December 2001), Pp- 273-274. Fax: 91 - 11 -4682144,2145. E-mail: outreach®te1·i. res. in Web: www. teriin. org POLLUTION CONTROL DEDUSTING DILEMMA j osef Reis inger and Mohammed AI Desoky, Seheuch GmbH, A ustria Environmental consideration is paramount to the modern cement plants. As the process ·of cement manufacture creates large volumes of dus t at various stages, the Lafarge-Perimooser plant in Austria had to decide how to dedus t in th e future as its current sys tem of two electrostatic precipitators (ESPs) no longer met requirements. Two options were considered, bag filter and the ins tallation of new ESP. The bag filter system was chosen as it met a number of requirements. The implemen ta tion of what is con s idered a future-oriented so luti on i s discussed in this article. Courtesy: International Cemen t Revie~ Feb. 2002, Pp. 44-46. Email: info@CemNe t. co. uk Web: www.CemNet.com FRIENDS OF THE EARTH ]olyne Fernandes ICR recently had the pleasure of attending the ' Inte rna tional Semi n (\r on Energy and Environment in. Cement Produc tion and Sus tainab le Con s truc tion ' . Hos ted by the National Council for Cement and Building Cement Manufac ture r s Associa tion , the conference was held in the majestic city of New Delhi. While technology-based stra tegies were very much at the forefront, as the proceedings took their course, delegates found that in terms of environmental ac ti on in the cement indus try, the thrust is now moving towards a more socially driven approach. Courtesy: International Cement Revievv, Mar. 2002, Pp. 49-50 Email: info@CemNet.co . uk Web: wwv.~CemNet.com USE OF FLY ASH IN CONSTRUCTION RECOMMENDED The Statesman, 26 11 ' February 2002 Concre te technologists have recom-mended extensive use of fly ash in Indian cons truction sector. In a seminar o rgani zed by Indian Concrete Institute, they have pointed out India could save fossil fuels, curb carbon dioxide emission if it opts for PPC (portland pozzolonic cement) instead of ordinary portland cement. Mr. Mohan Malhotra, a concrete engineering expert outlined advantages for use of PPC in II;dia, :India could. red;tce emiss~Qn of &_reen. , house gas by large extent by decreasing cement produ ction. Further, in India, there is dearth of good quality limestone in the country. Other Materials, Indi a in association with the country's supplementary con crete materia ls like sili ca