EVALUATION OF HYDROGEN PRODUCTION IN UP-FLOW FIXED BED ACIDOGENIC REACTORS TREATING BREWERY EFFLUENT

• Grant number: 12/10717-7
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): September 01, 2012
• Effective date (End): August 31, 2013
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Marcelo Zaiat
• Grantee: Danilo Nagata Ayabe
• Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated, AP.TEM

Abstract

From the 1970s, has seen the increasing consumption of beer, creating a demand for new industrial brewers. In Brazil, the increasing number of industries breweries comes from decades of 1990 and 2000, is now one of four countries that most produces beer in the world, according to data from the "Sindicato Nacional da Indústria da Cerveja" (National Union of Brewing Industry). According to the CETESB (2005) for each 1 liter of beer produced is consumed between 4 and 10 liters of water and generates 3-6 liters of effluent, making the process of beer production impacting to the environment. The composition of the effluent generated in the beer production favors the use of fermentation processes for the treatment, with the advantage of a possible generation of energetic compounds (H2 and CH4). Due to increased consumption of fossil fuels for power generation in recent years, many studies have focused on the production of hydrogen as an alternative clean energy to reduce greenhouse gases because the only product generated in its combustion with oxygen is water. In this context, the present research project aims to evaluate the biological production of hydrogen gas in upflow anaerobic sludge blanket reactors treating industrial wastewater from the production of beer. The experiments will be carried out in two reactors operated in parallel, one using as biomass support some random polypropylene ring (PP), and another using arrays of polyurethane foam enveloped in a rigid structure polipropilelo (PU). These reactors are constructed with acrylic tubes 80 mm in inner diameter and 750 mm high with a total volume of about 3.75 L. The wastewater to be studied will come from the brewing industry, with average values of 7500 mg COD / L, TKN 80 mg / L and 5 mg SO4-2 / L. The experimental investigation will be conducted in three stages, characterized by applying different hydraulic retention times, respectively of: 3 h, 1.5 h and 0.5 h.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE ARAUJO JUNIOR, M. M.; GAUDENCIO, B. O.; AYABE, D. N.; ZAIAT, M. EVALUATION OF AN INNOVATIVE ANAEROBIC BIOREACTOR WITH FIXED-STRUCTURED BED (ABFSB ) FOR BREWERY WASTEWATER TREATMENT. Brazilian Journal of Chemical Engineering, v. 33, n. 4, p. 733-741, OCT-DEC 2016. Web of Science Citations: 0.

M. M. DE ARAUJO JUNIOR; B. O. GAUDENCIO; D. N. AYABE; M. ZAIAT. EVALUATION OF AN INNOVATIVE ANAEROBIC BIOREACTOR WITH FIXED-STRUCTURED BED (ABFSB) FOR BREWERY WASTEWATER TREATMENT. Brazilian Journal of Chemical Engineering, v. 33, n. 4, p. -, Dez. 2016.