Granulation during the start-up of a UASB reactor used in the treatment of low strength wastewaters

• Type: Article in International Scientific Journal
• Date: 1997

Authors

Brito, AG (Author) Other; Rodrigues, AC (Author) Other; L. F. Melo (Author) Other

Journal

Title: Biotechnology Letters

Vol. 19

Pages: 363-367

ISSN: 0141-5492

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 19 Citations

ISI Web of Science

Scopus - 24 Citations

Other information

Authenticus ID: P-001-BNC

DOI: 10.1023/a:1018359102949

Abstract (EN): A glucose-based wastewater was efficiently degradaded by acidogenic bacteria, with a glucose removal efficiency close to 90%, and although a distinctive granular structure could not be observed, fluffy conglomerates developed in an Upflow Anaerobic Sludge Blanket (UASB) reactor. Subsequently, the pre-acidification of the wastewater promoted the granulation process. An enrichment in methanogenic bacteria was observed on the microscope and was confirmed by an increase in the specific methanogenic activity from 0.1 up to 0.5 kgCOD/kgVSS.day. Such dynamics of microbial communities was also verified through changes in the polysaccharide and protein content, as well as in the electrophoretic mobility of the biomass.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5