Mechanisms of granular activated carbon anaerobic fluidized-bed process for treating phenols wastewater

Article type: Research Article

Authors: Lao, Shan-gen

Affiliations: Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China

Abstract: Granular activated carbon (GAC) anaerobic fluidized-bed reactor was applied to treating phenols wastewater. When influent phenol concentration was 1000 mg/L, volume loadings of phenol and COD_Cr were 0.39 kg/(m³·d) and 0.98 kg/(m³·d), their removal rates were 99.9% and 96.4% respectively. From analyzing above results, the main mechanisms of the process are that through fluidizing GAC, its adsorption is combined with biodegradation, both activities are brought into full play, and phenol in wastewater is effectively decomposed. Meanwhile problems concerning gas-liquid separation and medium plugging are well solved.

Keywords: granular activated carbon (GAC), anaerobic fluidized-bed, phenol, removal rate

Journal: Journal of Environmental Sciences, vol. 14, no. 1, pp. 132-135, 2002