An air cleaning technology based on biotrickling filtration developed in previous phases of the project was scaled up and tested at the PSC swine grower-finisher facility. Results showed that the air treatment units were effective in reducing the levels of ammonia, dust, and odour from the air stream at the exhaust of the grow-finish rooms by about 77%, 92%, and 75%, respectively. Further work is needed to optimize the operation of these units in terms of water usage and to assess its year-round performance.
