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Sponza, Deli̇a Teresa

doi:10.1023/a:1010569101116

Cited by 8 publications

(1 citation statement)

References 22 publications

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“…Applying anaerobic and aerobic granular sludge in wastewater treatment is among the most useful and promising biotechnologies. The self-immobilization of microorganisms into anaerobic granules significantly increases the biomass's ability to withstand high loads and shocks, improves its retention in the reactor, and increases its tolerance to toxicity since the compact structure of the granule protects the bacteria from inhibitors and toxic pollutants (Sponza 2001). Due to these unique properties, anaerobic granulation technologies have been exploited for the biological treatment of municipal and industrial wastewater (Liu & Tay 2004).…”

Section: Introductionmentioning

confidence: 99%

Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Faria

Costa

Jorge

et al. 2022

Water Science and Technology

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Granular sludge is a promising biotechnology to treat sewage contaminated with pharmaceuticals due to its increased toxicity resistance. In this context, this study evaluated the potential of Ca2+ as a granulation precursor and how pharmaceuticals compounds (Loratadine, Prednisone, Fluconazole, Fenofibrate, Betamethasone, 17α-Ethinyl estradiol, and Ketoprofen) affect granulation. Continuous and intermittent dosages of Ca2+ in the presence and absence of pharmaceuticals were evaluated. The results showed that intermittent addition of Ca2+ reduces the time for anaerobic sludge granulation, and pharmaceuticals presence did not impair granulation. 10% of the granules presented mean diameters greater than 2.11 mm within 93 days with intermittent Ca2+ dosage in the pharmaceuticals’ presence. In contrast, no granules higher than 2.0 mm were observed with no precursor addition. The pharmaceuticals toxicity may have created a stress condition for the microbial community, contributing to more EPS production and a greater potential for granulation. It was also verified that pharmaceuticals’ presence did not decrease organic matter, total alkalinity, and volatile fatty acids removals. The 16S rRNA gene analysis revealed taxa resistance to recalcitrant compounds when pharmaceuticals were added. Besides, the efficiency of a granular sludge bioreactor (EGSB) was evaluated for pharmaceuticals removal, and Betamethasone, Fenofibrate, and Prednisone were effectively removed.

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Section: Introductionmentioning

confidence: 99%

Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Faria

Costa

Jorge

et al. 2022

Water Science and Technology

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show abstract

Biodegradation of trichloroethylene in anaerobic hybrid reactor

Mitra

Gupta

2012

Env Prog and Sustain Energy

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In this study, anaerobic hybrid reactor (AHR) was intensively used for the treatment of synthetic wastewater containing trichloroethylene (TCE) by gradual increment in influent TCE and chemical oxygen demand (COD) concentrations. The acclimatization study revealed that 99.93 ± 0.13% and 97.81 ± 0.42% of TCE and COD could be removed at an influent TCE and COD concentrations of 50 and 2000 mg/L, respectively. The maximum yield coefficient (Ym) was found to be 0.05 mg biomass/mg COD, whereas the maximum specific substrate as COD (qm · S) and cosubstrate as TCE (qm · CS) utilization rates were found to be 0.526 mg COD/mg volatile suspended solids (VSS)/day and 0.0125 mg TCE/mg VSS/day, respectively, during the biokinetics study. An optimum hydraulic retention time for the maximum TCE removal was found to be 18 h. The AHR showed high potentiality for the treatment of wastewater containing high concentration of TCE. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 1055–1060, 2013

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Pilot-scale treatment of a trichloethylene rich synthetic wastewater in anaerobic hybrid reactor, with morphological study of the sludge granules

Mitra

Gupta

2013

Clean Techn Environ Policy

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Untitled

Cited by 8 publications

References 22 publications

Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Effects of pharmaceuticals compounds and calcium on granulation, microbiology, and performance of anaerobic granular sludge systems

Biodegradation of trichloroethylene in anaerobic hybrid reactor

Pilot-scale treatment of a trichloethylene rich synthetic wastewater in anaerobic hybrid reactor, with morphological study of the sludge granules

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