A comparative study between thermophilic and mesophilic membrane aerated biofilm reactors

Autor:	B Q Liao, S N Liss
Rok vydání:	2007
Předmět:	Environmental Engineering Chemistry Thermophile Chemical oxygen demand Biofilm biochemical phenomena metabolism and nutrition Microbiology Membrane Wastewater Chemical engineering Environmental Chemistry Fiber Aeration General Environmental Science Mesophile
Zdroj:	Journal of Environmental Engineering and Science. 6:247-252
ISSN:	1496-256X 1496-2551
DOI:	10.1139/s06-053
Popis:	The concept of thermophilic membrane aerated biofilm reactor (MABR) was investigated for the first time and examined for its potential to treat a high strength synthetic wastewater. Biofilms at 55 °C were successfully grown on gas permeable silicone hollow fiber membranes. At a feed chemical oxygen demand (COD) of 1200 mg/L and a reaction time of 1 d, COD removal efficiency (90%) of the thermophilic MABR (55 °C) was much higher than that (67%) of the mesophilic MABR operated at 18–28 °C. Biofilms in the thermophilic reactor were less thick, more hydrophobic, and less negatively charged. This study indicated that MABRs operated at thermophilic temperatures could be an effective means for controlling biofilm thickness and for the treatment of warm high strength organic waste.Key words: membrane aerated biofilm reactor, thermophilic biofilm, mesophilic biofilm, biofilm characterization, COD removal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e1784b3207f6b8c5c6ebbf14fc6634e9 https://doi.org/10.1139/s06-053 Zobrazit plný text záznamu Plný text ve formátu PDF