Rhodobacter and pigments in anaerobic digestion of brewery effluent

Neves, André; Ramalho, Luís; Eusebio, Ana; Marques, Isabel Paula

http://hdl.handle.net/10400.9/3219

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Authors

Neves, André

Ramalho, Luís

Eusebio, Ana

Marques, Isabel Paula

Abstract(s)

ABSTRACT: Brewery wastewater (BWW) was digested anaerobically in mesophilic conditions and batch mode. The presence of a reddish pigmentation associated to the better removal capacity of the BWW digestion (64%), indicates that the treatment and energetic valorisation of an organic effluent can occur at the same time and inside the same unit as the production of a photosynthetic pigment. The reddish pigmentation found in this experiment was mainly attributed to bacteriochlorophyll a, and to carotenoids pigments of the spirilloxantin series (characteristics of purple non-sulfur bacteria). Microbial identification through Next-generation sequencing of 16S rRNA genes showed the presence of bacterial genus Rhodobacter in the inoculum and in anaerobic digestion of BWW.

Keywords

Anaerobic digestion Wastewater treatment Brewery effluent

URI

http://hdl.handle.net/10400.9/3219

Citation

Neves, A... [et.al.] - Rhodobacter and pigments in anaerobic digestion of brewery effluent. In: Wastes: Solutions, Treatments and Opportunities III: Selected Papers from the 5th International Conference Wastes 2019, September 4-6, 2019, Lisbon, Portugal. Vilarinho et al. (Eds) Taylor & Francis Group, London, p. 269-274