Air pollution control solution for cement industry - Construction & Construction Materials - Cement
The fundamental ingredient in concrete is portland cement. The cement manufacturing process requires a great deal of energy to heat the mixture of raw materials in a cement kiln. The main source of toxic emissions from a portland cement plant is the kiln. The treatment of kiln exhaust is similar to most incinerators processes. Scrubbers are the best choices for control of acid gases, fine particulate, heavy metals as well as dioxin and furans. The MACT II regulations, yet to be finalized, for cement kilns are expected to limit emissions similarly to those for Hazardous Waste Incinerators with only slightly less stringent requirements for some of the specific contaminants.