Variation of TTC-ETS Activity of Activated Sludge in SBR Process

2011 ◽  
Vol 281 ◽  
pp. 174-178 ◽  
Author(s):  
Jian Hui Wang ◽  
Jun Yin ◽  
Wei Hua Song ◽  
Ying Zi Lin ◽  
Xiao Lin Yu
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Activated Sludge ◽  
Biochemical Reaction ◽  
Ets Activity ◽  
Operational Conditions ◽  
Break Points ◽  
Nitrification And Denitrification

Changing rule and activity status of biological activity of activated sludge in SBR process were studied by the determination of TTC-ETS activity. The results indicate that TTC-ETS activity can reflect effectively the biochemical reaction course of SBR process. Biological activity of organic matter biodegradation, nitrification and denitrification course in SBR process is reduced in order. Operational conditions cannot influence the changing rule of TTC-ETS activity, but the time of the appearance of break points marking different reaction course in profile and the average biological activity are influenced.

Determination of Main Components in the Excess Activated Sludge

2012 ◽  
Vol 534 ◽  
pp. 249-252 ◽  
Author(s):  
Rui Jing Su ◽  
Deng Xin Li
Keyword(s):  
Organic Matter ◽  
Activated Sludge ◽  
Waste Activated Sludge ◽  
Measurement Results ◽  
Main Components

In the study, we determine the content of the main components, i.e., protein, polysaccharides and lipids in the excess activated sludge. The measurement results were consistent with those obtained before. In conclusion, the research indicated that the waste activated sludge consisted of 73.85% organic matter, 58.1% protein, 10.39 mg/g carbohydrate, less than 1% lipid.

Study on the Relationship between the Activity Change of CAT and INT-ETS in Different Sludge System by Using SBR Process

2013 ◽  
Vol 409-410 ◽  
pp. 177-181
Author(s):  
Jun Yin ◽  
Jia Ni Li ◽  
Jing Yi Cui ◽  
Jun Xiang Wang ◽  
Ke Zhao
Keyword(s):  
Activated Sludge ◽  
Experimental Results ◽  
Feature Points ◽  
Activity Change ◽  
Ets Activity ◽  
Positive Correlation ◽  
Conventional Activated Sludge ◽  
The Relationship ◽  
Sludge Activity

Through the determination of CAT activity and INT-ETS activity in SBR system to discuss respectively the relationship between the activity change of CAT and INT-ETS in the conventional activated sludge and humus activated sludge activity, the experimental results indicate that there are bigger differences between the changing rules of CAT activity and INT-ETS activity in the conventional activated sludge, but feature points appear on both of the changing curves, and CAT activity and INT-ETS activity are significantly positive correlation. So are CAT activity and INT-ETS activity in the humus activated sludge.

Determination of activated sludge biological activity using model corrected CO2 off-gas data

2007 ◽  
Vol 41 (7) ◽  
pp. 1587-1595 ◽  
Author(s):  
N WEISSENBACHER ◽  
K LENZ ◽  
S MAHNIK ◽  
B WETT ◽  
M FUERHACKER
Keyword(s):  
Biological Activity ◽  
Activated Sludge

scholarly journals Determination of the heterotrophic and autotrophic active biomass during activated sludge respirometric batch assays using molecular techniques

2008 ◽  
Author(s):  
◽  
Arshad Ismail
Keyword(s):  
Activated Sludge ◽  
Direct Measurement ◽  
Molecular Techniques ◽  
Cod Removal ◽  
Active Biomass ◽  
Biomass Components ◽  
Nitrification And Denitrification ◽  
Activated Sludge Models

Activated sludge models now in use worldwide for the design and operation of treatment systems use hypothetical concentrations of active organisms. In order to validate and calibrate model outputs, concentrations and activities of organisms responsible for nitrification and denitrification need to be reflected by actual measurements. This research has been initiated by the observation of an increasing gap of suitable techniques that exist in the direct measurement and separation of active biomass components, responsible for COD removal and denitrification.

Characterisation of Domestic Wastewater for Mathematical Modelling of the Activated Sludge Process

1991 ◽  
Vol 23 (4-6) ◽  
pp. 1057-1066 ◽  
Author(s):  
U. Sollfrank ◽  
W. Gujer
Keyword(s):  
Organic Matter ◽  
Kinetic Model ◽  
Oxygen Uptake ◽  
Activated Sludge ◽  
Domestic Wastewater ◽  
Heterotrophic Growth ◽  
Activated Sludge Process ◽  
Dynamic Loading Conditions ◽  
Hydrolysis Of

Based on oxygen uptake measurements a procedure is introduced to characterize organic material in domestic wastewater in view of mathematical models for the activated sludge process. The method allows the determination of stoichiometric as well as kinetic parameters necessary for the description of heterotrophic growth and hydrolysis of slowly degradable organic matter. From the information gained a kinetic model for the activated sludge process is formulated and experimentally verified under dynamic loading conditions.

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