SCANNING ELECTRON-MICROSCOPY OF BIOFILM DEVELOPMENT IN ANAEROBIC FIXED-BED REACTORS - INFLUENCE OF THE INOCULUM

被引：3

作者：

ZELLNER, G ^{[1
]}

DIEKMANN, H ^{[1
]}

AUSTERMANNHAUN, U ^{[1
]}

SEYFRIED, CF ^{[1
]}

机构：

[1] UNIV HANNOVER,INST SIEDLUNGSWASSERWIRTSCHAFT & ABFALLTECH,D-30167 HANNOVER,GERMANY

来源：

BIOTECHNOLOGY LETTERS | 1994年 / 16卷 / 03期

关键词：

D O I：

10.1007/BF00134632

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Scanning electron microscopy was applied to evaluate the influence of inoculum on efficiency of initial biofilm formation and reactor performance. Five anaerobic fixed-bed reactors were inoculated with anaerobic sludges from different sources and operated in parallel under identical conditions with defined wastewater and acetate, propionate and butyrate as constituents. In all sludges Methanothrix sp. was the predominant acetotroph. The reactors inoculated with anaerobic sludge adapted to the wastewater achieved the highest space loading with 21.0 g COD/l d after 58 days. The inoculation with granular sludge from an upflow anaerobic sludge blanket (UASB) reactor resulted in significantly less reactor efficiency. Time course of biofilm formation and biofilm thickness (ranging from 20-200 mu m) depended on the type of inoculum.

引用

页码：315 / 320

页数：6

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