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  4. Advanced phosphorus removal via coagulation, flocculation and microsieve filtration in tertiary treatment
 
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Advanced phosphorus removal via coagulation, flocculation and microsieve filtration in tertiary treatment

Publikationstyp
Journal Article
Date Issued
2017
Sprache
English
Author(s)
Langer, Margarethe  
Väänänen, Janne  
Boulestreau, Morgane  
Miehe, Ulf  
Bourdon, C.  
Lesjean, Boris  
Institut
Wasserressourcen und Wasserversorgung B-11  
TORE-URI
http://hdl.handle.net/11420/3803
Journal
Water science and technology  
Volume
75
Issue
12
Start Page
2875
End Page
2882
Citation
Water Science and Technology 12 (75): 2875-2882 (2017-06-01)
Publisher DOI
10.2166/wst.2017.166
Scopus ID
2-s2.0-85024481486
Publisher
IWA Publishing
The applicability of microsieve technology together with coagulation and flocculation for advanced phosphorus removal was investigated. A pilot unit including a microsieve with 10 μm mesh size was operated continuously with secondary effluent from Ruhleben wastewater treatment plant in Berlin. By applying a pretreatment of 0.07-0.09 mmol/L (as metal) coagulant and 1.5-2 mg/L cationic polymer, total phosphorus values below 80 μg/L were achieved. Coagulation with polyaluminum chloride (PACl) produced a better effluent quality compared to FeCl3, as less suspended solids and less residual coagulant were found in the microsieve effluent. In addition, the transmittance of UV radiation through the water was improved by using PACl. The produced amount of backwash water was always below 3% (on average 1.6%). Under optimized mixing conditions, polymer doses of 0.6 mg/L were possible without losses in water quality and filtration performance. Microsieving with chemical pretreatment is a viable option for high quality effluent polishing.
Subjects
Advanced phosphorus removal
Coagulation
Flocculation
Microsieve
DDC Class
570: Biowissenschaften, Biologie
Funding(s)
Entfernung von Cr(VI) aus Grundwasser durch chemische Reduktion, Koagulation und Membranfiltration  
More Funding Information
This project was sponsored by Berliner Wasserbetriebe and Veolia and co-financed by the Senate of Berlin and the European Union (European Regional Development Fund).
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