Using Compounds Derived from the Glycerol Fermentation as a Carbon Source for Denitrification and Biological Phosphorus Removal

Dias, Maria Eduarda Simões; Lopes, Jéssica Costa; Carneiro, Rodrigo B.; Damianovic, Márcia Helena Rissato Zamariolli; Foresti, Eugênio

doi:10.1007/s11270-021-05296-9

Cited by 4 publications

(2 citation statements)

References 34 publications

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“…Glycerol has found several applications in the cosmetics and pharmaceutical industries [96]. In addition, waste glycerol can serve as an external organic carbon source in wastewater treatment plants, which improves the efficiency of nitrogen and phosphorus removal from organic-poor wastewater [97].…”

Section: Production Of Biodieselmentioning

confidence: 99%

Agricultural Wastes and Their By-Products for the Energy Market

Zielińska,

Bułkowska

2024

Energies

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The conversion of lignocellulosic agricultural waste into biofuels and other economically valuable compounds can reduce dependence on fossil fuels, reduce harmful gas emissions, support the sustainability of natural resources, including water, and minimize the amount of waste in landfills, thus reducing environmental degradation. In this paper, the conversion of agricultural wastes into biomethane, biohydrogen, biodiesel, bioethanol, biobutanol, and bio-oil is reviewed, with special emphasis on primary and secondary agricultural residues as substrates. Some novel approaches are mentioned that offer opportunities to increase the efficiency of waste valorization, e.g., hybrid systems. In addition to physical, chemical, and biological pretreatment of waste, some combined methods to mitigate the negative effects of various recalcitrant compounds on waste processing (alkali-assisted thermal pretreatment, thermal hydrolysis pretreatment, and alkali pretreatment combined with bioaugmentation) are evaluated. In addition, the production of volatile fatty acids, polyhydroxyalkanoates, biochar, hydrochar, cellulosic nanomaterials, and selected platform chemicals from lignocellulosic waste is described. Finally, the potential uses of biofuels and other recovered products are discussed.

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Section: Production Of Biodieselmentioning

confidence: 99%

Agricultural Wastes and Their By-Products for the Energy Market

Zielińska,

Bułkowska

2024

Energies

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“…Glycerol is a carbon source easily assimilated by fermentative microorganisms, being able to produce a series of metabolites in acidogenic condition (Dias et al, 2021), which can potentially be recovered or assimilated by methanogenic microorganisms to produce biomethane. It is noteworthy that glycerol is generated in abundance as a by-product of biodiesel production, and its availability in the market is much greater than the market demand to consume it.…”

Section: Introductionmentioning

confidence: 99%

Cometabolic removal of ibuprofen, diclofenac and ciprofloxacin driven by glycerol fermentation in an acidogenic biofilm reactor

Carneiro,

Gomes,

Zaiat

et al.

Global NEST International Conference on Environmental Science &Amp; Technology

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The presence of pharmaceuticals in wastewater has increasingly become a public health issue globally due to the potential impacts it can cause on the environment and public health. In this study, we sought to analyze the cometabolic effect of glycerol fermentation on the removal of ibuprofen (IBU), diclofenac (DCF), and ciprofloxacin (CIP). The results indicated a positive effect of the glycerol addition on the removal of these compounds: without GOH – 65%, 35%, and 25%; with GOH – 91%, 48%, and 45%, respectively for IBU, DCF and CIP. A significant increase in the production of volatile fatty acids, especially propionate and valerate, was observed during the glycerol fermentation, which may have favored the prevalence of fermentative bacteria, as well as the production of specific microbial enzymes active in the biotransformation of the microcontaminants. Glycerol proved to be a good alternative supplementation in wastewater treatment systems to optimize the pharmaceutical compounds removal, in addition to the fact that it is a by-product of the biodiesel production with high availability on the market in many parts of the world.

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