Parametric study of a brewery effluent treatment by microalgae Scenedesmus obliquus

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Teresa M. Mata (Author) FEUP; Ana C. Melo (Author) Other; Manuel Simões (Author) FEUP; Nídia S. Caetano (Author) FEUP

Journal

Title: Bioresource Technology

Vol. 107 No. March

Pages: 151-158

ISSN: 0960-8524

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 76 Citations

ISI Web of Science

Scopus - 119 Citations

Scientific classification

FOS: Agrarian Sciences > Agricultural biotechnology

CORDIS: Technological sciences

Associated Projects

PEst-C/EQB/UI0511/2011 - PROJECTO ESTRATÉGICO - UI 511 - 2011-2012

Other information

Authenticus ID: P-002-CGJ

DOI: 10.1016/j.biortech.2011.12.109

Abstract (EN): This work analyses the potential of using microalgae Scenedesmus obliquus (So) for a brewery wastewater treatment and biomass production. The chemical oxygen demand (COD), total nitrogen (TN) and total carbon (IC) was followed in time, and the influence of light exposure, light intensity and culture aeration was studied. Results show that the most adequate conditions for cultivating So in this effluent are the aerated cultures, exposed to a 12 h period of daily light, at 12000 Lux intensity. At these conditions it is obtained a maximum of 0.9 g of dry biomass per liter of culture, after 9 days, for a maximum reduction of 57.5% and 20.8% of COD and TN, respectively, after 14 days, and 56.9% of TC, after 13 days, corresponding to the final values of 1692 mg O-2/L COD, 47 mg N/L TN, and 1 mg C/L TC.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8