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Environment Protecting the World’s Natural Heritage Lehigh Southwest Cement is committed to protecting our environment by complying with all applicable laws and regulations. Lehigh constantly strives to develop and produce products of the highest quality while minimizing our impact on the environment. These efforts benefit Lehigh, the community, our customers and the environment. By working to protect the environment at our operations, Lehigh Southwest Cement is working to preserve the world for future generations. Lehigh Southwest Cement's commitment to the environment requires that:
Tehachapi – Cleaner Air Project The Tehachapi plant, located 100 miles north of Los Angeles, is in an environmentally sensitive area. Nitrogen Oxides (NOx) are the inevitable by-products of cement manufacture. The Tehachapi plant uses a staged combustion process to control NOx emissions. Staged combustion reduces NOx by gradually oxidizing fuel and by destroying NOx further down the manufacturing chain. The plant has been fitted with a Technip-CLE ‘MINOX’ precalciner, which creates a ‘reducing zone’ whereby NOx formed by fuel is suppressed and NOx formed in the kiln is destroyed. |
