Enhancing Anaerobic Digestion of Waste Activated Sludge by Solid–Liquid Separation via Isoelectric Point Pretreatment

2018 ◽  
Vol 6 (11) ◽  
pp. 14774-14784 ◽  
Author(s):  
Ying Xu ◽  
Yiqing Lu ◽  
Xiaohu Dai ◽  
Lingling Dai
Keyword(s):  
Anaerobic Digestion ◽  
Activated Sludge ◽  
Isoelectric Point ◽  
Waste Activated Sludge ◽  
Liquid Separation ◽  
Solid Liquid ◽  
Solid Liquid Separation

Upgrading performance of an activated sludge process through addition of talqueous powder

1996 ◽  
Vol 34 (5-6) ◽  
pp. 75-83 ◽  
Author(s):  
J. Cantet ◽  
E. Paul ◽  
F. Clauss
Keyword(s):  
Activated Sludge ◽  
Control Unit ◽  
Physical Structure ◽  
Experimental Models ◽  
Volume Index ◽  
Liquid Separation ◽  
Floc Structure ◽  
Rapid Effect ◽  
Solid Liquid ◽  
Solid Liquid Separation

This study is intended to induce better performance of existing activated sludge wastewater plants without modifying the physical structure of the plant. The process consists in injecting a specific mineral powder into the aeration stage with two precise purposes: firstly to improve floc structure and thus facilitate solid/liquid separation in the clarifier, and secondly to reduce nitrogenous pollution. By means of two experimental models the indisputable and rapid effect of talc/chlorite blend on the solid/liquid separation was established (with a sludge volume index improvement by a factor of 2 to 3 within a few days) compared with a control unit. The increase in nitrification capacity of the system is also clearly shown with nitrification yields being increased by 30%. These results lead us to believe that it is possible to use this process of enhanced nitrification for running a plant reliably without dysfunctioning. Problems linked to hydraulic or biological excess loading can be solved this way. Moreover, the addition of talqueous powder improves sludge dewaterability.

Ammonia emissions from liquid manure storages are affected by anaerobic digestion and solid-liquid separation

2018 ◽  
Vol 258 ◽  
pp. 80-88 ◽  
Author(s):  
Hambaliou Baldé ◽  
Andrew C. VanderZaag ◽  
Stephen D. Burtt ◽  
Claudia Wagner-Riddle ◽  
Leigh Evans ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Ammonia Emissions ◽  
Liquid Manure ◽  
Liquid Separation ◽  
Solid Liquid ◽  
Solid Liquid Separation

Impact of membrane solid-liquid separation on design of biological nutrient removal activated sludge systems

2005 ◽  
Vol 89 (6) ◽  
pp. 630-646 ◽  
Author(s):  
M. Ramphao ◽  
M. C. Wentzel ◽  
R. Merritt ◽  
G. A. Ekama ◽  
T. Young ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Nutrient Removal ◽  
Biological Nutrient Removal ◽  
Liquid Separation ◽  
Solid Liquid ◽  
Solid Liquid Separation ◽  
Activated Sludge Systems

The influence of protruding filamentous bacteria on floc stability and solid-liquid separation in the activated sludge process

2017 ◽  
Vol 123 ◽  
pp. 578-585 ◽  
Author(s):  
Wilhelm Burger ◽  
Konrad Krysiak-Baltyn ◽  
Peter J. Scales ◽  
Gregory J.O. Martin ◽  
Anthony D. Stickland ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Activated Sludge Process ◽  
Filamentous Bacteria ◽  
Liquid Separation ◽  
Solid Liquid ◽  
Solid Liquid Separation

Phosphorus speciation during anaerobic digestion and subsequent solid/liquid separation

2020 ◽  
Vol 734 ◽  
pp. 139284 ◽  
Author(s):  
Stefania Mazzini ◽  
Gigliola Borgonovo ◽  
Leonardo Scaglioni ◽  
Floriana Bedussi ◽  
Giuliana D'Imporzano ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Phosphorus Speciation ◽  
Liquid Separation ◽  
Solid Liquid ◽  
Solid Liquid Separation
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