Effects of Chlortetracycline Amended Feed on Anaerobic Sequencing Batch Reactor Performance of Swine Manure Digestion
Document Type
Article
Publication Date
12-2012
Abstract
The effects of antimicrobial chlortetracycline (CTC) on the anaerobic digestion (AD) of swine manure slurry using anaerobic sequencing batch reactors (ASBRs) was investigated. Reactors were loaded with manure collected from pigs receiving CTC and no-antimicrobial amended diets at 2.5 g/L/d. The slurry was intermittently fed to four 9.5 L lab-scale anaerobic sequencing batch reactors, two with no-antimicrobial manure, and two with CTC-amended manure, and four 28 day ASBR cycles were completed. The CTC concentration within the manure was 28 mg/L immediately after collection and 1.02 mg/L after dilution and 250 days of storage. CTC did not inhibit ASBR biogas production extent, however the volumetric composition of methane was significantly less (approximately 13% and 15% for cycles 1 and 2, respectively) than the no-antimicrobial through 56 d. CTC decreased soluble chemical oxygen demand and acetic acid utilization through 56 d, after which acclimation to CTC was apparent for the duration of the experiment.
Publication Title
Bioresource Technology
Volume
125
First Page
65
Last Page
74
DOI of Published Version
10.1016/j.biortech.2012.08.077
Recommended Citation
Dreher, Teal M.; Mott, Henry V.; Lupo, Christopher D.; Oswald, Aaron S.; Clay, Sharon A.; and Stone, James J., "Effects of Chlortetracycline Amended Feed on Anaerobic Sequencing Batch Reactor Performance of Swine Manure Digestion" (2012). Agronomy, Horticulture and Plant Science Faculty Publications. 102.
https://openprairie.sdstate.edu/plant_faculty_pubs/102