Modeling the impact of membrane filtration on organic carbon removal by the activated sludge process for tannery wastewater

2021 ◽  
Vol 215 ◽  
pp. 405-413
Author(s):  
Seval Sözen ◽  
A. Begüm Yücel ◽  
Güçlü İnsel ◽  
Derin Orhon
Keyword(s):  
Organic Carbon ◽  
Activated Sludge ◽  
Membrane Filtration ◽  
Tannery Wastewater ◽  
Activated Sludge Process ◽  
Carbon Removal ◽  
The Impact

Controlling organic carbon removal of a highly-loaded activated sludge process

2016 ◽  
Vol 2016 (14) ◽  
pp. 3613-3618
Author(s):  
Mark W Miller ◽  
Jose Jimenez ◽  
Sudhir Murthy ◽  
Bernhard Wett ◽  
Charles B Bott
Keyword(s):  
Organic Carbon ◽  
Activated Sludge ◽  
Activated Sludge Process ◽  
Carbon Removal ◽  
Highly Loaded

The Impact of a Chemostat Discharge Containing Oil Degrading Bacteria on the Biological Kinetics of a Refinery Activated Sludge Process

1988 ◽  
Vol 20 (11-12) ◽  
pp. 131-136 ◽  
Author(s):  
A. D. Wong ◽  
C. D. Goldsmith
Keyword(s):  
Activated Sludge ◽  
Retention Time ◽  
Waste Treatment ◽  
Treatment Plant ◽  
Utilization Rate ◽  
Activated Sludge Process ◽  
Kinetic Evaluation ◽  
Degrading Bacteria ◽  
Waste Treatment Plant ◽  
The Impact

The effect of discharging specific oil degrading bacteria from a chemostat to a refinery activated sludge process was determined biokinetically. Plant data for the kinetic evaluation of the waste treatment plant was collected before and during treatment. During treatment, the 500 gallon chemostatic growth chamber was operated on an eight hour hydraulic retention time, at a neutral pH, and was fed a mixture of refinery wastewater and simple sugars. The biokinetic constants k (days−1), Ks (mg/L), and K (L/mg-day) were determined before and after treatment by Monod and Lineweaver-Burk plots. Solids discharged and effluent organic concentrations were also evaluated against the mean cell retention time (MCRT). The maximum utilization rate, k, was found to increase from 0.47 to 0.95 days−1 during the operation of the chemostat. Subsequently, Ks increased from 141 to 556 mg/L. Effluent solids were shown to increase slightly with treatment. However, this was acceptable due to the polishing pond and the benefit of increased ability to accept shock loads of oily wastewater. The reason for the increased suspended solids in the effluent was most likely due to the continual addition of bacteria in exponential growth that were capable of responding to excess substrate. The effect of the chemostatic addition of specific microbial inocula to the refinery waste treatment plant has been to improve the overall organic removal capacity along with subsequent gains in plant stability.

The Impact of Aluminium-Based Co-Precipitants on the Activated Sludge Process

1999 ◽  
Vol 77 (1) ◽  
pp. 31-36 ◽  
Author(s):  
T. Clark ◽  
T. Stephenson ◽  
A.K. Arnold-Smith
Keyword(s):  
Activated Sludge ◽  
Activated Sludge Process ◽  
The Impact
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