Holcim (US) staged a ribbon-cutting ceremony late last month to cap a two-year Hagerstown, Md., cement plant modernization. The company underscored a clinker capacity increase upward of 200,000 tons annually, plus emissions controls abiding new Environmental Protection Agency National Emission Standards for Hazardous Air Pollutants (NESHAP) thresholds.
Read MoreThe Environmental Protection Agency’s national emissions standards for hazardous air pollutants (NESHAP) rule covering portland cement is driving significant capital investment toward a September 2016 compliance target for U.S. mills. A tandem measure awaits another sector aligned with ready mixed concrete and concrete masonry.
Read MoreIn its latest round of national emission standards for hazardous air pollutants (NESHAP), Environmental Protection Agency proposes lower limits for mercury and non-mercury metals, plus hydrogen and chlorine gases from clay brick tunnel (continuous curing) kilns, coupled with target startup and shutdown periods. EPA also envisions work practice standards for more specialized periodic kilns, which are heated up to 2,000°F, then left to cool for several days. Tunnel kilns are typically fired by natural gas or sawdust; periodic kilns, coal.
Sources: Environmental Protection Agency; CP staff
In its latest round of national emission standards for hazardous air pollutants (NESHAP), EPA proposes lower limits for mercury and non-mercury metals, plus hydrogen and chlorine gases from clay brick tunnel (continuous curing) kilns, coupled with target startup and shutdown periods. The agency also envisions work practice standards for more specialized periodic kilns, which are heated up to 2,000° F, then left to cool for several days. Tunnel kilns are typically fired by natural gas or sawdust; periodic kilns, coal.
Read MoreIn a ruling on National Resources Defense Council v. EPA, the U.S. District Court for the District of Columbia upholds major parts of an agreement the cement industry and Environmental Protection Agency reached on the National Emission Standards for Hazardous Air Pollutants (NESHAP), under which producers will invest heavily in emissions treatment and controls equipment toward a 2016 compliance target.
Read MoreSources: Portland Cement Association, Washington, D.C.; CP staff
In a ruling on National Resources Defense Council v. EPA, the U.S. District Court for District of Columbia upholds major parts of an agreement the cement industry and Environmental Protection Agency reached on the National Emission Standards for Hazardous Air Pollutants (NESHAP), under which producers will invest heavily in emissions treatment and controls equipment toward a 2016 compliance target.
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