Sequencing batch reactor with submerged hollow fibre membranes for the biomass separation.
A method to reduce the cycle time of the SBR-process by utilising submerged membranes is described. The time necessary for the sedimentation of the activated sludge and the extraction of the clear-water phase takes up a major part of the entire cycle period within the SBR-process. By using membranes it is possible to start the clear-water extraction already during the reaction time. The time needed for the sedimentation of the activated sludge can be dispensed with altogether. The paper presents the initial results of a semi-technical test plant, with particular emphasis on the fact that the running of the SBR-plant did not lead to any problems with fouling or scaling. In cases of high solids contents, the oxygen input was below par; this, however, did not have any unfavourable impact on the nitrification.
Krampe
J
J
Institute of Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, D-70569 Stuttgart, Germany.
Krauth
K
K
D001419:Bacteria / Q000302:isolation & purification; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology; D005374:Filtration; D008567:Membranes, Artificial; D009584:Nitrogen / Q000302:isolation & purification; D009930:Organic Chemicals / Q000302:isolation & purification; D010865:Pilot Projects; D012722:Sewage / Q000382:microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*
D008567:Membranes, Artificial; D009930:Organic Chemicals; D012722:Sewage; D009584:Nitrogen