TY - CHAP
T1 - Comparison of Two Treatments for the Removal of Organic Micro-Pollutants
T2 - Conventional Activated Sludge (CAS) Followed by Ultrafiltration (UF) vs. Membrane Bioreactor (MBR)
AU - Sahar, E.
AU - Ernst, M.
AU - Godehardt, M.
AU - Hein, A.
AU - Herr, J.
AU - Kazner, C.
AU - Melin, T.
AU - Cikurel, H.
AU - Aharoni, A.
AU - Messalem, R.
AU - Brenner, A.
AU - Jekel, M.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - The potential of MBR systems to remove organic micro-pollutants was investigated at different scales, operational conditions, and locations. MBR effluent quality was compared with that of a conventional activated sludge (CAS) plant, followed by ultrafiltration (UF), operated and tested in parallel. A MBR pilot plant in Israel was operated for over a year at an MLSS range of 2.8-10.6 g/L. The MBR achieved removal rates comparable to those of a CASUF plant at the Tel-Aviv WWTP for macrolide antibiotics such as roxythromycin, clarithromycin and erythromycin and slightly higher removal rates than the CAS-UF for sulfonamides. A laboratory scale MBR unit in Berlin - at an MLSS of 6-9 g/L - showed better removal rates for macrolide antibiotics, trimethoprim and 5-tolyltriazole compared to the CAS process of the Berlin WWTP Ruhleben at identical raw wastewater quality. Sulfamethoxazole and 4-tolyltriazole were removed slightly better in the CAS while the benzotriazole removal was more significant. In pilot MBR tests at an MLSS of 12 g/L in Aachen, Germany, operating flux significantly affected the resulting membrane fouling rate, but the removal rate of dissolved organic matter and of bisphenol-A was not affected.
AB - The potential of MBR systems to remove organic micro-pollutants was investigated at different scales, operational conditions, and locations. MBR effluent quality was compared with that of a conventional activated sludge (CAS) plant, followed by ultrafiltration (UF), operated and tested in parallel. A MBR pilot plant in Israel was operated for over a year at an MLSS range of 2.8-10.6 g/L. The MBR achieved removal rates comparable to those of a CASUF plant at the Tel-Aviv WWTP for macrolide antibiotics such as roxythromycin, clarithromycin and erythromycin and slightly higher removal rates than the CAS-UF for sulfonamides. A laboratory scale MBR unit in Berlin - at an MLSS of 6-9 g/L - showed better removal rates for macrolide antibiotics, trimethoprim and 5-tolyltriazole compared to the CAS process of the Berlin WWTP Ruhleben at identical raw wastewater quality. Sulfamethoxazole and 4-tolyltriazole were removed slightly better in the CAS while the benzotriazole removal was more significant. In pilot MBR tests at an MLSS of 12 g/L in Aachen, Germany, operating flux significantly affected the resulting membrane fouling rate, but the removal rate of dissolved organic matter and of bisphenol-A was not affected.
KW - antibiotics
KW - membrane bioreactor
KW - municipal wastewater
KW - organic micro-pollutants
KW - ultrafiltration
UR - http://www.scopus.com/inward/record.url?scp=84883184700&partnerID=8YFLogxK
U2 - 10.1007/978-94-007-0280-6_13
DO - 10.1007/978-94-007-0280-6_13
M3 - Chapter
AN - SCOPUS:84883184700
SN - 9789400702790
T3 - NATO Science for Peace and Security Series C: Environmental Security
SP - 147
EP - 161
BT - Advanced Water Supply and Wastewater Treatment
A2 - Hlavinek, Petr
A2 - Winkler, Igor
A2 - Marsalek, Jiri
A2 - Mahrikova, Ivana
ER -