The use of membrane bioreactors offers a considerable improvement in process stability and
effluent quality for small-scale wastewater treatment plants (Q < 8 m^2/d). The treatment
performance of four different in-building membrane bioreactors (Busse-MF of Busse GmbH,
Germany) was found to be considerably better than the minimum required by German DIN
4261 part 2. Apart from carbon removal, a stable nitrification and even a partial denitrification
was observed. The hygiene quality of the treated wastewater is such that a reuse of the water,
e.g. for irrigational use, can be recommended. Due to very low sludge production rates it was
possible to operate the bioreactor for ca. 450 days without withdrawal of excess sludge. For
up to one year this seems to be reasonable when varying MLSS concentrations can be
tolerated. For MLSS concentrations of up to ca. 35 g/L, no oxygen limitation due to a
decrease in oxygen mass transfer was observed in the Busse-MF. Includes 8 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 280 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 9 |
| Published : | 03/05/2003 |
