Conference paper

Publication year: 1994

Pages: 395-404

Journal: Water Science & Technology

Volume number: 30

Issue number: 12

ISSN: 0273-1223

DOI Link: https://doi.org/10.2166/wst.1994.0639

Conference: IAWQ 7th International Symposium on Anaerobic Digestion

Publisher: IWA Publishing

Abstract: 
A laboratory scale anaerobic treatment process for brewery wastewater has been investigated. It utilised a continuously stirred tank (CST) acidification reactor (11.3 l) plus an anaerobic treatment system which consisted of either a downflow stationary fixed film (DSFF) reactor (20.7 l) or a DSFF reactor in series with a flee (FLOC) or sludge blanket reactor (20.8 l). At the same residence time the combination of DSFF and FLOC reactor performed better than a single methane digester. Using low and high strength wastewater, degradation yields of 80-90% were obtained at total loading rates B-R,B-COD up to 10 kg COD m(-3) x d and a residence time t less than one day. Mean values of methane yield were 0.31 m(STP)(3) kg-1 COD or 2.91 m(STP)(3) m(-3)x d. Inert support media investigated consisted of inorganic materials such as porous Kerapor 1000 and glass sponge (Siran) with macro- and micropores or polyurethane foam (Filtren TR 30) with an open net structure. In all cases SEM showed appropriate surface characteristics for microbial attachment. After 4 months of operation biofilm thickness on inorganic support media was 0.4-0.9 mm at a superficial linear velocity (SLV) of 10-5 mm min(-1). Under these conditions biofilm on Filtren TR 30 was noticeably thicker (up to 2 mm). Concerning metal contamination of biofilm on Filtren TR 30, Al, Fe and Zn showed elevated levels above 2000 ppm.

Harvard Citation style: STADLBAUER, E., OEY, L., WEBER, B., JANSEN, K., WEIDLE, R., LOHR, H., et al. (1994) ANAEROBIC PURIFICATION OF BREWERY WASTE-WATER IN BIOFILM REACTORS WITH AND WITHOUT A METHANATION CASCADE, Water Science & Technology, 30(12), pp. 395-404. https://doi.org/10.2166/wst.1994.0639

APA Citation style: STADLBAUER, E., OEY, L., WEBER, B., JANSEN, K., WEIDLE, R., LOHR, H., OHME, W., & DOLL, G. (1994). ANAEROBIC PURIFICATION OF BREWERY WASTE-WATER IN BIOFILM REACTORS WITH AND WITHOUT A METHANATION CASCADE. Water Science & Technology. 30(12), 395-404. https://doi.org/10.2166/wst.1994.0639