Bioaugmentation with fungi: An emerging strategy for removing pharmaceutical substances in wastewater treatment process by fluidized bed pelleted bioreactor

• Fungi have been shown to be effective candidates to remove pharmaceuticals. However, the pilot-scale application mainly deals with the strict growth conditions and competition between microbial community from wastewater. Thus, the bioaugmentation for removing the pharmaceuticals in municipal wastewater by T. versicolor and A. luchuensis using fluidized bed pelleted bioreactor was studied. To find the optimal performance of bioaugmentation two periodical biomass volume, 10 and 50 g per 1.25 L bioreactor, were tested. The removal of nutrients, pharmaceutical substances and changes in the pH value, laccase activity, and total microorganisms were analyzed. The results showed that bioaugmentation has an effect in removing NH 4 -N and lower accumulation of NO 3 -N, whereas PO 4 -3 -P and TOC did not show significant effect on the reduction of nutrient load. The results of removal efficiency for diclofenac, carbamazepine, and sulfamethoxazole showed that there was no significant effect on the removal while the highest removal efficiency (> 90%) for ibuprofen, ketoprofen, and metoprolol was achieved by both fungi with periodical addition with 50 g of biomass after an incubation time of 3 hours. Finally, the data analysis with AI-based experimental design indicated that A. luchuensis can be a promising fungus for pharmaceutical removal and implies as a promising approach for optimization of fluidized bed pelleted bioreactor. Overall, the obtained results and the use of an AI-based platform are a promising approach for optimization and operation of fluidized bed pelleted bioreactor. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Water Engineering (hsv//eng)

Nyckelord

Fungi; bioaugmentation; pharmaceutical substances; wastewater

Biotechnology

Bioteknologi

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