Kim, S.; Shim, S.; Won, S.; Ra, C. Assessment of a Novel Real-Time Bio-Liquor Circulation System for Manure Management and Mitigation of Odor Potential in Swine Farming. Animals2023, 13, 3849.
Kim, S.; Shim, S.; Won, S.; Ra, C. Assessment of a Novel Real-Time Bio-Liquor Circulation System for Manure Management and Mitigation of Odor Potential in Swine Farming. Animals 2023, 13, 3849.
Kim, S.; Shim, S.; Won, S.; Ra, C. Assessment of a Novel Real-Time Bio-Liquor Circulation System for Manure Management and Mitigation of Odor Potential in Swine Farming. Animals2023, 13, 3849.
Kim, S.; Shim, S.; Won, S.; Ra, C. Assessment of a Novel Real-Time Bio-Liquor Circulation System for Manure Management and Mitigation of Odor Potential in Swine Farming. Animals 2023, 13, 3849.
Abstract
The aim of this study was to investigate the performance of the developed real-time controlled bio-liquor circulation system (BCS) on a farm-scale to optimize bioreactor operation for manure treatment, and to subsequently reduce both manure-related malodor and greenhouse gas (GHG) emissions from slurry pits. The BCS was operated sequentially as per swine manure inflow (anoxic, aerobic, and settling) circulation to the slurry pit. The duration of each operational phase was self-adjusted in real-time using a novel algorithm for detecting the control point on the oxidation-reduction potential (ORP) and pH (mV)-time profiles, the nitrogen break point (NBP), and the nitrate knee point (NKP) in the aerobic and anoxic phases, respectively. The NH4-N in the slurry manure was thoroughly removed (100%) in the bioreactor, optimizing the duration of each operational phase by accurately detecting real-time control points. The newly-developed real-time BCS decreased the nitrogen and organic matter content in the slurry pit manure by > 70%, and the potential ammonia and methane emissions by 75% and 95%, respectively. This study highlights that the this improved BCS that utilizes ORP tracking and pH (mV)-time profiles can effectively optimize BCS operation, and thereby reduce malodor and GHG emissions from swine farms.
Biology and Life Sciences, Animal Science, Veterinary Science and Zoology
Copyright:
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