Adverse effects of erythromycin on the structure and chemistry of activated sludge
J N Louvet1, C Giammarino, O Potier
1Laboratoire des Sciences du Génie Chimique-CNRS, Nancy University, INPL, 1, rue Grandville, BP 20451, F-54001 Nancy Cedex, France.
Abstract:
This study examines the effects of erythromycin on activated sludge from two French urban wastewater treatment plants (WWTPs). Wastewater spiked with 10 mg/L erythromycin inhibited the specific evolution rate of chemical oxygen demand (COD) by 79% (standard deviation 34%) and the specific N-NH4+ evolution rate by 41% (standard deviation 25%). A temporary increase in COD and tryptophan-like fluorescence, as well as a decrease in suspended solids, were observed in reactors with wastewater containing erythromycin. The destruction of activated sludge flocs was monitored by automated image analysis. The effect of erythromycin on nitrification was variable depending on the sludge origin. Erythromycin inhibited the specific nitrification rate in sludge from one WWTP, but increased the nitrification rate at the other facility.
More Related Videos
09:49Use of a Battery of Chemical and Ecotoxicological Methods for the Assessment of the Efficacy of Wastewater Treatment Processes to Remove Estrogenic Potency
Published on: September 11, 2016
10:41The Logic, Experimental Steps, and Potential of Heterologous Natural Product Biosynthesis Featuring the Complex Antibiotic Erythromycin A Produced Through E. coli
Published on: January 13, 2013
Related Concept Videos
Inhibitors of Bacterial Protein Synthesis
Inhibitors of Bacterial DNA Synthesis
Stringent Response in E. coli
Acid Mine Drainage
Antifungal Agents
Bioactivation and Tissue Toxicity
