REFERENCES

(SS) Table of contents

Low Sludge Age And Its Consequences For Metabolisation, Storage And Adsorption Of Readily Biodegradable Substrate

KEYWORDS INTRODUCTION RESULTS DISCUSSION REFERENCES ABSTRACT In lab-scale experiments with sludge from a 2-stage activated sludge system (AB process) it is shown that the inert soluble COD fraction of the wastewater is always significantly higher if the wastewater is added to A-sludge (SRT ca. 0.5 d) in comparison to B-sludge (SRT ca. 20 d). At the same time the readily biodegradable COD (S S ) is lower with A-sludge, which showed neither adsorption nor storage of S S . It is hypothesised that very low sludge ages result in selecting fast growing bacteria, which can utilise only part of the S S in the raw wastewater. The other part of S S remains in the wastewater and can be utilised for enhanced denitrification in the second stage. The key for a successful modelling of processes with a sludge age lower than 1 day is to make the wastewater characterization for COD and some of the important kinetic parameters dependent on sludge age. KEYWORDS Activated Sludge, Adsorption, Mathem..

TIS@WEB-Database Supported Tourist Information on the Web

The currently running tourism-WWW-serve