Abstract
The characteristic of anaerobic expanded granular sludge bed (EGSB) treating antibiotic wastewater that contained amoxicillin (AMX) was investigated. The performance of the reactor was characterized in terms of its COD, AMX removal efficiencies, and methane yield. After 241 d of operation, 85 and 80% removal efficiencies of COD and AMX were achieved, respectively. Furthermore, volumetric loading rate (VLR) effecting on EGSB system was evaluated by changing hydraulic retention time (HRT was switched to 14, 8, and 14 h, respectively). With HRT decreased to 8 h, COD and AMX removal efficiencies dropped obviously to 36.50 and 58.55%, respectively. When HRT was switched to 14 h again, AMX removal efficiency required three more days than COD to recover to around 80%. These results showed that EGSB reactor could resist the short-time shock of VLR and recover to high removal efficiencies of AMX and COD. According to AMX and COD removal efficiencies and methane yield, it was confirmed that AMX was unlikely to create problems in pre-treating AMX-contained wastewater with EGSB system.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
