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Hybrid microalgae-activated sludge system for carbon-efficient wastewater treatment

Mohammed, Kasim ; Ahammad, S Z ; Sallis, P J ; Mota, C R

Water science and technology, 2023-08, Vol.88 (3), p.586-594 [Periódico revisado por pares]

England: IWA Publishing

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Título:
Hybrid microalgae-activated sludge system for carbon-efficient wastewater treatment
Autor: Mohammed, Kasim ; Ahammad, S Z ; Sallis, P J ; Mota, C R
Assuntos: Activated carbon ; Activated sludge ; Algae ; Ammonia ; Aquatic microorganisms ; Bacteria ; bacterial oxygen requirement ; Biomass ; Bioreactors ; carbon capture ; Carbon capture and storage ; Carbon dioxide ; Carbon neutrality ; Carbon sequestration ; Chemical oxygen demand ; Domestic wastewater ; Energy efficiency ; hybrid system ; Hybrid systems ; Irradiance ; Light emitting diodes ; Microalgae ; Microorganisms ; Municipal wastewater ; Nutrients ; Operating costs ; Orthophosphate ; Oxygen ; Oxygen requirement ; Photobioreactors ; Photosynthesis ; Phytoplankton ; Sludge ; Wastewater treatment ; Water treatment
É parte de: Water science and technology, 2023-08, Vol.88 (3), p.586-594
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: Engineered microalgae-bacteria systems can play a key role in the realisation of energy-efficient carbon-neutral wastewater treatment technologies. An attempt was made to develop a hybrid microalgae-activated sludge (HMAS) system coupling carbon capture with domestic wastewater treatment. Photobioreactors internally illuminated with red light-emitting diodes (LEDs), and inoculated with mixed microbial culture, resulted in substantial savings in operational cost. System performance was evaluated at about 600 μmol/m s LED irradiance while treating synthetic municipal wastewater in a chemostat for about 2 months, containing about 250 mg/L soluble chemical oxygen demand (SCOD), 90 mg/L NH -N and 10 mg/L orthophosphate. Carbon dioxide was supplied into the HMAS at 25 mL/min, 25% v/v. SCOD was efficiently removed from the wastewater (up to 70%) and bacterial oxygen requirement of >2 mg/L was met through microalgal photosynthesis. The system demonstrated its potential in achieving carbon-efficient wastewater treatment.
Editor: England: IWA Publishing
Idioma: Inglês

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Hybrid microalgae-activated sludge system for carbon-efficient wastewater treatment

Mohammed, Kasim ; Ahammad, S Z ; Sallis, P J ; Mota, C R

England: IWA Publishing

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