Search results
Results from the WOW.Com Content Network
Coal industry groups promote the idea of "clean coal". In one video by the American Coalition for Clean Coal Electricity, coal lumps are portrayed as characters singing carols with names like "Frosty the Coalman." [172] Since the mid-1980s, the term "clean coal" has been widely used with various meanings. [173]
The History of coal mining goes back thousands of years, with early mines documented in ancient China, the Roman Empire and other early historical economies. It became important in the Industrial Revolution of the 19th and 20th centuries, when it was primarily used to power steam engines, heat buildings and generate electricity.
Coking is the process of heating coal in the absence of oxygen to a temperature above 600 °C (1,112 °F) to drive off the volatile components of the raw coal, leaving behind a hard, strong, porous material with a high carbon content called coke.
the rise of the "smoke nuisance" in the 1850s, brought about by the domestic and commercial use of coal, in many cities and metropolises; direct combustion of coal being a particularly notorious source of pollution; which the widespread use of gas could abate, especially with the commencement of using gas for purposes other than illuminating ...
Coal mining is the process of extracting coal from the ground or from a mine. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.
In the 1990s, coal tar was discovered under wetland soil in Greenville, just outside Unity Park. Today, the state is preparing to clean it up through a multi-year excavation proposal.But ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Coal tar and coal tar sludges are frequently denser than water and are present in the environment as a dense non-aqueous phase liquid. In the UK, a number of former gasworks sites have been redeveloped for residential and other uses (including the Millennium Dome), being seen as prime developable land within the confines of city boundaries.