TY - JOUR
T1 - Tylosin effect on methanogenesis in an anaerobic biomass from swine wastewater treatment
AU - García-Sánchez, Liliana
AU - Garzón-Zúñiga, Marco Antonio
AU - Buelna, Gerardo
AU - Estrada-Arriaga, Edson Baltazar
N1 - Publisher Copyright:
© 2016 IWA Publishing.
PY - 2016/1
Y1 - 2016/1
N2 - The effect of different concentrations of tylosin on methane production was investigated: first methanogenesis in a biomass without contact with the antibiotic, and later the ability of the sludge to adapt to increasing concentrations of tylosin. Results showed that, for biomass that had no contact with the antibiotic, the presence of tylosin inhibits the generation of methane even at concentrations as small as 0.01 mg L-1, and samples at concentrations above 0.5 mg L-1 produced practically no methane, whereas, in the digesters acclimated in the presence of tylosin at a concentration of 0.01 to 0.065 mg L-1, methanogenesis is not inhibited in the presence of antibiotic and the generation of methane is improved. This behaviour suggests the microorganisms have developed not only resistance to the antibiotic but also an ability to metabolize it.
AB - The effect of different concentrations of tylosin on methane production was investigated: first methanogenesis in a biomass without contact with the antibiotic, and later the ability of the sludge to adapt to increasing concentrations of tylosin. Results showed that, for biomass that had no contact with the antibiotic, the presence of tylosin inhibits the generation of methane even at concentrations as small as 0.01 mg L-1, and samples at concentrations above 0.5 mg L-1 produced practically no methane, whereas, in the digesters acclimated in the presence of tylosin at a concentration of 0.01 to 0.065 mg L-1, methanogenesis is not inhibited in the presence of antibiotic and the generation of methane is improved. This behaviour suggests the microorganisms have developed not only resistance to the antibiotic but also an ability to metabolize it.
KW - Specific methanogenic activity (SMA)
KW - Swine anaerobic sludge
KW - Tylosin
UR - http://www.scopus.com/inward/record.url?scp=84956696594&partnerID=8YFLogxK
U2 - 10.2166/wst.2015.507
DO - 10.2166/wst.2015.507
M3 - Artículo
SN - 0273-1223
VL - 73
SP - 445
EP - 452
JO - Water Science and Technology
JF - Water Science and Technology
IS - 2
ER -