A systematic evaluation of estimated construction and operation costs shows that the use of methanol at the Smithfield Packing Plant near Tar Heel, NC is a more economical carbon source for denitrification than anaerobic lagoon influent. The capital and O&M cost comparison of the two options shows that the methanol addition results in a yearly savings of $317,750 when compared to the anaerobic by-pass option. This difference is primarily due to:1. Lower estimated capital costs due to the High-Strength Equalization Basin required with the by-pass option. 2. Reduced biogas production in the anaerobic lagoon associated with the by-pass option. 3. Reduced aeration requirements and solids handling costs associated with the methanol addition. This evaluation illustrates the importance of all operational considerations when selecting a carbon source for denitrification at an industrial facility.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.