Cement News tagged under: NESHAP
US EPA extends comment period for NESHAP Residual Risk rule06 November 2017, Published under Cement NewsThe US Environmental Protection Agency (EPA) has extend the comment period on its rule “National Emission Standards for Hazardous Air Pollutants from the Portland Cement Manufacturing Industry Residual Risk and Technology Review” from 6 November to 21 November 2017. The EPA is making this change due to a request for additional time to prepare comments on the proposed rule. |
First for Midlothian18 May 2016, Published under Cement NewsIEEE-IAS/PCA Conference attendees will tour the first National Emissions Standards for Hazardous Air Pollutants (NESHAP)-compliant kiln in the United States. Ash Grove Cement Company’s Midlothian (TX) plant modernised its pyroprocess and met NESHAP requirements by September 2014, a whole year ahead of most other US cement plants. By Jacqueline K Clark, Ash Grove Cement Co, USA. IEEE-IAS/PCA Conference delegates will visit Ash Grove Cement Co's Midlothian plant in Texas, USA - the f... |
Tijeras targets emission limits16 April 2015, Published under Cement NewsAs US cement plants gear up to comply with the new NESHAP regulations that come into force later this year, GCC Rio Grande upgrades its Tijeras plant in New Mexico, USA. By Saul Alvidrez, GCC, USA. The new baghouse of GCC Rio Grande’s Tijeras plant in New Mexico, USA Built in 1958, GCC Rio Grande’s Tijeras plant consists of two long dry kilns (f4.6m x 85m) with a two-stage preheater, two 36tph (40stph) ball mills and three 23tph (26stph) ball mills for finish grinding. The wo... |
Industry declares victory in NESHAP case22 April 2014, Published under Cement NewsThe US Court of Appeals for the District of Columbia Circuit rejected, in part, petitions from the Natural Resources Defense Council and other environmental groups to vacate the 2013 Portland cement national emission standards for hazardous air pollutants (NESHAP) rule, the PCA has said. The Court sided with EPA and PCA about the revised particulate matter (PM) standard and extended compliance deadline, but rejected EPA’s affirmative defense provision, instead saying that the Clean Air Act ... |
MACT rule brings challenges08 April 2014, Published under Cement NewsThe US is at the forefront of new legislation to limit mercury emissions and improve air pollutant monitoring. As a result, the cement industry faces a race against time to implement solutions and comply with regulations by September 2015. This article focusses on the challenges of mercury monitoring in cement plants, and emerging technologies that enable successful monitoring and reporting of mercury emissions. By Ravi Narayan, Cemtrex Inc, USA & Richard Hovan, Durag Inc, USA. Recent... |
NESHAP compliance made easy17 April 2013, Published under Cement NewsAs the US Environmental Protection Agency finalised its amendments to the air toxics rules for Portland cement production and expects the industry to comply fully by 2015, Austria-based filter specialist Scheuch offers its patented EMC technology as the key solution to dust emission issues. By Alois Hermandinger, Scheuch GmbH, Austria. Figure 1: EMC filter plant at Holcim (Germany) AG, Lägerdorf plant The US Environmental Protection Agency (EPA) has finalised amendments to th... |
US cement sector wins two-year extension to meet new pollution controls24 December 2012, Published under Cement NewsThe Environmental Protection Agency has finalised rules to curb pollution for cement plants, agreeing to give industry additional time for compliance and easing some emissions limits from earlier proposals. Cement kilns will face strict limits on mercury, acid gases and fine particulate matter, but plants will not have to comply with the new limits until September 2015, two years after they were originally set to take place. There are fewer than 115 cement plants in the United States, b... |
EPA proposes updates and deadline extension26 June 2012, Published under Cement NewsIn response to a federal court ruling and data from industry, the US Environmental Protection Agency (EPA) is proposing changes to its 2010 air standards for the US cement industry. The proposal would continue the significant emission reductions from the 2010 standards while providing industry additional compliance flexibilities, including more time to implement the proposed updates by extending the compliance date for existing cement kilns from September 2013 to September 2015. I... |
Ash Grove approves US$125m investment, USA24 May 2012, Published under Cement NewsAsh Grove Cement Company’s Board of Directors approved a US$125m-plus investment in the company’s Midlothian, Texas, plant at its May meeting. A new preheater, precalciner production system will make Ash Grove’s facility among the lowest emitting cement producers in Texas, the company said in a statement. According to Ash Grove Chairman Charles Sunderland, “We were considering a range of options as a result of the US Environmental Protection Agency’s (EPA) Portland cement National Emissio... |
Filters for NESHAP compliance31 January 2012, Published under Cement NewsThe implications of the National Emissions Standards for Hazardous Air Pollutants (NESHAP) in the USA are far reaching in their targeting to reduce emissions from cement plants to unprecedented lower levels. Filter technology of the highest quality will be required to achieve the emission reductions needed, as Gore has been examining. Chris Polizzi of WL Gore & Associates, USA, shows us the results. Figure 1: weighted average emissions from stack tests, 1998-2007, used to develo... |
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