CHARACTERIZATION AND COMPARISON OF BIOMASS FROM MESOPHILIC AND THERMOPHILIC FIXED-BED ANAEROBIC DIGESTERS

被引:26
作者
SOTO, M
MENDEZ, R
LEMA, JM
机构
[1] Department of Chemical Engineering, Univ of Santiago de Compostela
关键词
ANAEROBIC FILTER; FIXED FILM; MESOPHILIC; THERMOPHILIC; BIOMASS DISTRIBUTION; KINETIC CHARACTERIZATION OF BIOMASS;
D O I
10.2166/wst.1992.0152
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Two lab-scale mesophilic (MAF) and thermophilic (TAF) anaerobic filters treating effluents from a mussel cooking factory were operated at their maximum organic load rate (OLR) for a long period of time. The biomass profiles and the distribution of occluded and attached biomass were determined. Biomass distribution in the MAF was more homogeneous along the filter. Most of the biomass in the TAF was attached while both attached and occluded biomass was observed in the MAF. The hydrolytic, acidogenic, acetogenic and methanogenic activities of sludges at different levels were determined. An attempt is made to explain the behaviour of both reactors as a function of these activities and other kinetic parameters.
引用
收藏
页码:203 / 212
页数:10
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