Cement, Energy and Environment

\ t Sustainable Development 'RECYCLING C&D WASTE IS A MOVE F0PWArC' The Delhi government's decision of recycling construction and demolition (C&D) waste, a major pollutant in the city, in all future contracts has been welcomed by the Centre for Science and Environment. Anumita Roychowdhury, head of CSE's Sustainable Urbanisation team said , "This is an important move forward as construction and demolition of buildings cause enormous waste - about half of all materials used - that degrades the land and environment." Delhi is estimated to generate about 4,000-4,600 tonnes per day (TPD) of C&D waste. It is either dumped in city landfills or in open spaces, water bodies and flood plains. While welcoming the decision, CSE said the next step in this direction should be an improved policy on collection , segregation and handling of waste; decentralised collection and recycling centres; penalty for littering; lower taxes on recycled products and public awareness . It called for the Centre to include provisions on dealing with C&D waste management in the draft Municipal Solid Waste Management Rules 2015 besides notifying BIS draft standards for recycled material and products. Seconding what the NGT has been advocating for sometime now for management of C&D Waste and against its dumping on river banks, the CSE suggested making developers responsible and accountable for good construction practices, on-site segregation of waste, reuse and disposal. Imposition of waste tax to m1n1m1se waste generation can also be a necessary step. The Delhi government has issued an advisory on the use of products made out of recycled waste by the Public Works Department (PWD). All Delhi government agencies will be required to incorporate a clause in their tenders that mandates use Qf a minimum of 2 per cent recycled products from construction waste in all future contracts for building works and 1 0 per cent recycled products for road works. It expects the urban local bodies to mandate 5 per cent use of such products for non-structural applications, while examining and approving building plans. Courtesy: The Hindu, 17.08.2015 INDIA & WATER SCARCITY Water stress and water scarcity are key drivers of geopolitics today. Rains and water availability have been particularly poor for India this year largely due to El Nino. we take a look at how water shoragecan affect us. Wlliltttlppenswtlen Wlltwls ln Short SUpply Reduced Populatlon mov'emerrt~n~ foodand . live$tOCk .AddJtlooal lFamine/starvation production costs of Political Slre$S living Other problems watei'SWC!tY l,s Wilen theAI/li.lilblllty Is I <SOO~~of water per person/Year I ,Asia's avail· ~Stress is When the AvailabilityIs ability of truh cl.OOO cullkJIIttl'es of water per~ water reserve$ Per (lpiQ w.ter use (In m3'/yr) Continents Pl!r (a()lta water use & America CAmerlca Clnent Water Usa&e (IN \l • A(;I\JC\It.TIJI!f a 11<0\JSTRY a OOMESTIC 1. POPOLATIOW • The primary reason ts population as India's population which was 1.3 billion In 2005 Is expected to rise to 1.66 billion In 2050. • 55.2% • Expetted Increase in urban population by 2050 2. A(iJIICUI.TUR£ 80" IncreaseIn demand for water bY t 2050 es the agrlrolture develop· ment will be more on water·lnten· slve cash croPS I ' Africa's avail· ability or fresh waterr~e$ 5~ AUstralia and Oce~- na's avaJiabillty of t~ water reserm North & central America'$ avallabll· ity of fresh water ~ r It \ "' Of world's OOPU!a· tlon live InSouth America Of world's population live In Africa ~~ ; or world's popula· tlon live In Aus- tralla & Oceana "' or world's population live 1n North & Central AmeriCll (-~ SOUth America's avallab11Jty of fresh water reserve$ J. UtCJ!I!AUD IIIOUSTJIJAliSIITIPN SO OfcMANO WILL GO UP•• lndusl.l'II!S' contrlbullpn tP GDr .b jl. I By 2050 In 2000 '.jo i;lni0ri'm31. 16t btnion m3 JN 2000 IN 2050 SCWt llrii?Or~-- or-.rtv«' G"""'~dOtalnl Courtesy: The Economic Times, 24.09.2015