Dual offset reflectors shaped for zero crosspolarisation with asymmetric feed pattern

1982 ◽  
Vol 129 (6) ◽  
pp. 307
Author(s):  
B.S. Westcott ◽  
F. Brickell
Keyword(s):  
1990 ◽  
Vol 22 (9) ◽  
pp. 101-111 ◽  
Author(s):  
J. R. Rensink ◽  
H J. G. W. Donker

Bulking sludge has been studied on laboratory, pilot plant and large scale circumstances. Special attention has been paid to different kinds of agro-industrial waste waters and domestic sewage. It has been clearly shown that besides a deficiency of nutrients and oxygen, the feed pattern of the plant plays a very important role in the field of bulking sludge control. Different experiments have obviously demonstrated that a completely mixed activated sludge system leads much more to bulking sludge than a plug-flow system. Also a contact tank (selector ahead of the plant) is positive for depressing bulking sludge in completely mixed systems.


2018 ◽  
Vol 99 (2) ◽  
pp. 829-837 ◽  
Author(s):  
Amutha Jeevakumari Sigamani Annamary ◽  
Nagarajan Velmurugan

2018 ◽  
Vol E101.B (2) ◽  
pp. 316-323
Author(s):  
Dirk I. L. DE VILLIERS ◽  
Robert LEHMENSIEK ◽  
Marianna V. IVASHINA
Keyword(s):  

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