reclaimed waste water
51Recycling — For other uses, see Recycling (disambiguation). 3R Concepts Waste Disposal Hierarchy Reduce Reuse Recycle Barter Dematerialization Dow …
52Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …
53Draining and development of the Everglades — Satellite image of the northern Everglades with developed areas in 2001, including the Everglades Agricultural Area (in red), Water Conservation Areas 1, 2, and 3, a …
54lead processing — Introduction preparation of the ore for use in various products. Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …
55Steam engine — A steam engine is a heat engine that performs mechanical work using steam as its working fluid. [ [http://www.britannica.com/EBchecked/topic/564472/steam engine steam engine Britannica Online Encyclopedia ] ] Steam engines have a long history,… …
56Netherlands, The — officially Kingdom of The Netherlands byname Holland Country, northwestern Europe. Area: 16,033 sq mi (41,526 sq km). Population (2002 est.): 16,142,000. Capital: Amsterdam; Seat of Government: The Hague. Most of the people are Dutch. Languages:… …
57Geography and climate of Singapore — The geography of Singapore is marked by a small, heavily urbanised, island city state in Southeast Asia, located at southern tip of the Malayan Peninsula between Malaysia and Indonesia. Singapore has a total land area of 699 km² and 193 km of… …
58Paper — For other uses, see Paper (disambiguation). A stack of copy paper Paper is a thin material mainly used for wr …
59Computer cooling — An OEM AMD heatsink mounted onto a motherboard. Computer cooling is required to remove the waste heat produced by computer components, to keep components within their safe operating temperature limits. Various cooling methods help to improve… …
60recycling — or materials salvage Recovery and reuse of materials from consumed products. The main motives for recycling have been the increasing scarcity and cost of natural resources (including oil, gas, coal, mineral ores, and trees) and the pollution of… …
