THE CHARACTERISTICS OF GRANULES FROM UPFLOW ANAEROBIC SLUDGE BLANKET REACTORS

被引:67
作者
KOSARIC, N [1 ]
BLASZCZYK, R [1 ]
ORPHAN, L [1 ]
VALLADARES, J [1 ]
机构
[1] TECH UNIV LODZ,INST CHEM ENGN,PL-90924 LODZ,POLAND
关键词
ANAEROBIC DIGESTION; GRANULES; LOADING RATE; UASB REACTOR;
D O I
10.1016/0043-1354(90)90081-G
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Granules from an industrial UASB reactor were maintained in bench scale (20 1.) UASB reactors and fed with a synthetic medium based on volatile fatty acids. After 60 days of reactor operation, three distinct granule types were found to have evolved within the reactors. These types were defined by their colour: black, grey and white. These granules also differed in structure (texture) and elemental composition. The proportion of black, grey and white granules in the bed changed when the organic loading rate was changed. At the low loading rate, a large number of "hollow" granules appeared which were less dense than the liquid and were washed out at the top of the reactor.
引用
收藏
页码:1473 / 1477
页数:5
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