RETRACTED: Removal of oxytetracycline (OTC) in a synthetic pharmaceutical wastewater by a sequential anaerobic multichamber bed reactor (AMCBR)/completely stirred tank reactor (CSTR) system: Biodegradation and inhibition kinetics

The article was a duplication of a paper that had already appeared in J. Chem. Technol. Biotechnol., 87 (2012) 961-975, http://dx.xoi.org/10.1002/jctb.3706. The authors would like to apologize for this administrative error on their part.