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Hydraulic Cone Crusher Made By Zenith

633 words - 3 pages

After a rwater slag mill pricesound of publicity and public outcry in 2006 over mercury contamination from the plant, Lehigh emission rates for the deadly chemical plummeted. But now, the mercury emissions have spiked back up to some of Construction Waste Recycling Line the highest in the nation.The Lehigh Tehachapi plant produced 872 pounds of mercury in 2010, according to the Environmental Protection Agency Toxics Release Inventory data ?the most of any cement plant in California and the second-highest among all cement plants in the United States. In 2007, mercury emissions had dropped to 144 pounds, and then began climbing again.

Andy Oare, vice president for regulatory affairs at the Portland Cement Association, which represents cement plants that use the ortland?method of cooking limestone in kilns, said the regulations could cripple small towns across the country that rely on cement plants to provide local, well-paying jobs. For Lehigh ...view middle of the document...

These plants were supposed to be in compliance over a decade ago,?Pew said. hey have so successfully played the system that they have avoided these standards for Soapstone rock crusher years.Under the new rules, which are scheduled to begin in September 2013, plants will be banned from emitting more than 55 pounds of mercury per million tons of cement produced. The cement industry said complying with the regulations could cost as much as $3.4 billion and force the closure of some plants, but federal regulators put the cost at less than $1 billion.

Inside the plant, workers burn coal to cook limestone mined from the nearby hillside at more than 2,600 degrees. Both materials contain mercury, which then escapes into the atmosphere. Once in the air, scientists say, the mercury settles on the ground and contaminates the soil and water ?and, eventually, fish that are eaten by humans.California, rich in natural resources and massive in size, is Stone Crushing Plant for Sale in India one of the country largest producers of cement, with eight production facilities on the EPA's list of mercury emitters. As such, a debate in Congress over controlling emissions from cement plants could have a major impact on the industry here.

The limestone mined from the volcanic earth near Tehachapi is naturally high in mercury, the company notes, and transportation costs prohibit importing limestone from great distances. Wee looking at a number of technologies and operating systems to see how we can best meet?the new mercury emissions standards, Chizmadia said. ur focus is to meet that, so we can have the facility operating.Despite Mineral Roasting Kiln this federal effort, environmental activists remain skeptical that anything substantial will get done after decades of pollution and what they said is inattentive oversight by local air pollution boards. In Southern California, environmental activist Jane Williams has waged a fight for years against the eight cement kilns operating in Kern and San Bernardino counties. She remembers driving toward Las Vegas along the old Route 66 at night with her infant son when she passed TXI Riverside Cement plant in Oro Grande.

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