Spray Acid Wet Scrubbers to Recover Ammonia Emission from Poultry
A novel, cost effective ammonia scrubber for use in commercial poultry facilities.
Ammonia emissions pose a threat to environmental quality, public health, and agricultural operations. Ammonia gas (NH3) is a waste product from animal production and manure composting facilities, and contributes to environmental acidification and increase particulate concentrations in the air. The U.S. Environmental Protection Agency (EPA) estimates that animal agriculture accounts for 80.9% of total man-made ammonia emissions resulting in significant amounts of nitrogen loss. In animal agriculture, the greatest ammonia losses are associated with land application of manure (35%-45%) and animal housing facilities (30%-35%). Innovative technologies for the abatement and recovery of NH3 emissions from agricultural productions are urgently needed to protect the environment and create an alternative fertilizer for crop farming.
The Ohio State University researchers, led by Dr. Lingying Zhao, developed a spray acid wet scrubber technology that can efficiently remove and recover ammonia emissions from large-scale commercial poultry facilities. The modular scrubber design developed by Dr. Zhao and her team has resulted in a scrubber with increased efficiency and is cost effective to build and operate. Some attributes of the wet scrubber include: