Activated Sludge Separation Problems

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Valter Tandoi, David Jenkins, Jiri Wanner
IWA Publishing, 1 gen 2006 - 216 pagine
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The Activated Sludge (AS) Process is old technology but is still widely adopted worldwide for its convenience and simplicity: an impressive number (many hundred of thousands) of this kind of system are in operation. Occasionally, problems such as bulking and foaming occur, causing regulation violations and large investment is often required immediately to control them. For this reason, an intense research effort has been made during the last few decades to face these problems, and this report details the work undertaken by the IWA Specialist Group on Activated Sludge Population Dynamics. This Scientific and Technical Report describes the main reasons fslyuor the growth of the different filamentous microorganisms in activated sludge, and the biological molecular tools available today for the identification of the main biomass components. The wide range of experiences around the world is documented and the methods to avoid the proliferation of these organisms are presented and critically reviewed. Activated Sludge Separation Problems consists of seven chapters, presenting up-to-date technical and scientific aspects of these processes. Scientific and Technical Report No. 16
 

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Sommario

The Microbiology of Activated Sludge Process
11
AS Separation problems
35
Aeration tank and secondary clarifier as one system
47
Bulking and Foaming Control Methods
62
Experiences in Various Countries
83
H Lemmer and N Matsché
126
Modelling of bulking phenomena
182
Index
195

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Informazioni sull'autore (2006)

David Jenkins is also the author of Training Speed and Endurance. He is also a sports scientists and has a Ph.D. in exercise physiology.

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