Water Resources by unknow

Author:unknow
Language: eng
Format: epub
Publisher: John Wiley & Sons, Incorporated
Published: 2017-07-08T00:00:00+00:00

6.3.2 Mining for Minerals

The natural resources used as the basis for most products are typically found within the ground and need to be excavated. The most well known of these resources are solids such as coal and ores, liquids such as oil, or gases such as methane. The process of exploiting these resources also includes the activities required to prepare crude materials for marketing, for example, crushing, grinding, cleaning, drying, sorting, concentrating ores, liquefaction of natural gas, and agglomeration of solid fuels (UN Statistics 2010). While it may not be immediately obvious how water is used in mining, the amounts are significant and often result in the generation of large volumes of contaminated wastewater.

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