Effect of Solids Retention Time on Effluent Dissolved Organic Nitrogen in the Activated Sludge Process: Studies on Bioavailability, Fluorescent Components, and Molecular Characteristics

2018 ◽  
Vol 52 (6) ◽  
pp. 3449-3455 ◽  
Author(s):  
Haidong Hu ◽  
Kewei Liao ◽  
Yuanji Shi ◽  
Lili Ding ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Retention Time ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Molecular Characteristics ◽  
Activated Sludge Process ◽  
Solids Retention Time ◽  
Solids Retention ◽  
Process Studies

The Relationship Between Mixed-Liquor Particle Size and Solids Retention Time in the Activated Sludge Process

2011 ◽  
Vol 83 (12) ◽  
pp. 2178-2186 ◽  
Author(s):  
Licheng Chan ◽  
Shao-Yuan Leu ◽  
Diego Rosso ◽  
Michael K. Stenstrom
Keyword(s):  
Particle Size ◽  
Activated Sludge ◽  
Retention Time ◽  
Activated Sludge Process ◽  
Mixed Liquor ◽  
Solids Retention Time ◽  
Solids Retention ◽  
The Relationship

Impact of solids retention time on dissolved organic nitrogen and its biodegradability in treated wastewater

2016 ◽  
Vol 92 ◽  
pp. 44-51 ◽  
Author(s):  
Halis Simsek ◽  
Murthy Kasi ◽  
Jae-Bom Ohm ◽  
Sudhir Murthy ◽  
Eakalak Khan
Keyword(s):  
Retention Time ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Treated Wastewater ◽  
Solids Retention Time ◽  
Solids Retention

Implementation of long solids retention time activated sludge process for rural residential community

2020 ◽  
Author(s):  
Ken Campbell ◽  
Jianmin Wang ◽  
Robert Tucker ◽  
Chris Struemph
Keyword(s):  
Activated Sludge ◽  
Retention Time ◽  
Activated Sludge Process ◽  
Residential Community ◽  
Solids Retention Time ◽  
Solids Retention

Understanding the formation of recalcitrant dissolved organic nitrogen as a result of thermal hydrolysis and anaerobic digestion of municipal sludge

2021 ◽  
Vol 7 (2) ◽  
pp. 335-345
Author(s):  
Dian Zhang ◽  
Zhaohui An ◽  
Mary Strawn ◽  
Tom Broderick ◽  
Wendell Khunjar ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Retention Time ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Thermal Hydrolysis ◽  
Municipal Sludge ◽  
Solids Retention Time ◽  
Solids Retention ◽  
Different Temperatures ◽  
First Time

This study for the first time investigated the turnover of dissolved organic nitrogen in lab-scale thermal hydrolysis pretreatment at different temperatures with and without mesophilic anaerobic digestion at a solids retention time of 15 days.

Nitrogen removal in activated sludge systems including denitrification in secondary clarifiers

1994 ◽  
Vol 30 (6) ◽  
pp. 101-111 ◽  
Author(s):  
H. Siegrist ◽  
W. Gujer
Keyword(s):  
Activated Sludge ◽  
Nitrogen Removal ◽  
Retention Time ◽  
Secondary Clarifier ◽  
Solids Retention Time ◽  
Solids Retention ◽  
Activated Sludge Systems

Denitrification in the secondary clarifier can contribute substantially to the nitrogen removal of activated sludge systems. This is illustrated on two treatment plants with different secondary clarifier systems. A model to estimate denitrification capacity and to design activated sludge systems for nitrogen removal is developed and verified with data from two treatment plants. The model includes denitrification in the secondary clarifier, wastewater composition (soluble readily biodegradable COD, particulate degradable COD), oxygen input into the anoxic volume, temperature, and solids retention time (SRT). The influence of aerated grit chambers and primary sedimentation on denitrification is discussed.

Insights into the acute effect of anti-inflammatory drugs on activated sludge systems with high solids retention time

2020 ◽  
pp. 1-12
Author(s):  
Bengisu Ciftcioglu ◽  
Esma Demirkaya ◽  
Esra Salih ◽  
Dilsad Soylu ◽  
Goksin Ozyildiz ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Retention Time ◽  
Acute Effect ◽  
High Solids ◽  
Solids Retention Time ◽  
Solids Retention ◽  
Inflammatory Drugs ◽  
Anti Inflammatory ◽  
Activated Sludge Systems

Bound Water Content of Activated Sludge and Its Relationship to Solids Retention Time, Floc Structure, and Surface Properties

2000 ◽  
Vol 72 (6) ◽  
pp. 722-730 ◽  
Author(s):  
B.Q. Liao ◽  
D.G. Allen ◽  
I.G. Droppo ◽  
G.G. Leppard ◽  
S.N. Liss
Keyword(s):  
Activated Sludge ◽  
Water Content ◽  
Surface Properties ◽  
Retention Time ◽  
Bound Water ◽  
Floc Structure ◽  
Solids Retention Time ◽  
Solids Retention ◽  
Bound Water Content
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