Book/Report

FZJ-2018-02329

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ein "Glasschwamm" als Bakterienspeicher : Abwasserreinigung ohne Sauerstoff

Aivasidis, A.FZJ* ; Wandrey, C.FZJ*

1984
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/18028

Report No.: Juel-1900

Abstract: There are a large number of advantages in using microbial anaerobic degradation processes in waste water pretreatment. A disadvantage of this method lies in the relative large doubling times of anaerobic microorganisms. Because of the autocatalytic behaviour of the microbial processes and the low carbon incorporation rate which results in low biomass concentrations in continuously operated systems, decoupling of residence times for substrate and biomass is necessary. In this way high space time yields can be achieved under anaerobic conditions as well. From the well known variants for biomass retention, immobilisation by an inert support isthought to be an effectiv alternative. Experiments on anaerobic treatment of sulfite evaporator condensate by means of immobilized microorganisms were carried out in a 12 l-fixed bed loop reactor. Porous sinter glass from SCHOTT Mainz with a porosity of about 60% and a mean pore diameter of 60-100 $\mu$m served as carrier. The reactor was operated for several months under steady state conditions at different residence times using an iterative approach. At a residence time of 12 h 84% of the chemical oxygen demand (COD) was eliminated at loading rates up to 88 kg COD/m$^{3}$ and day.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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