Activated Sludge Process Control by Behaviour of Secondary Settling Tanks

1987 ◽  
Vol 19 (7) ◽  
pp. 1207-1210 ◽  
Author(s):  
G. d'Antonio ◽  
P. Carbone
Keyword(s):  
Process Control ◽  
Activated Sludge ◽  
Mathematical Models ◽  
Activated Sludge Process ◽  
Secondary Settling

The mathematical models of activated sludge kinetics and solids flux have been investigated; the constants have been derived experimentally. By developing the equations of the two models, an operational chart for activated sludge process control has been plotted.

The Basics of Automated Activated Sludge Process Control: Keep It Simple

2004 ◽  
Vol 2004 (11) ◽  
pp. 377-394
Author(s):  
Edmund Kobylinski ◽  
Andrew Shaw ◽  
Mark Steichen ◽  
Howard Analla
Keyword(s):  
Process Control ◽  
Activated Sludge ◽  
Activated Sludge Process

Using the Oxidation Index (OXI) as an Activated Sludge Process Control Tool

2011 ◽  
Vol 2011 (10) ◽  
pp. 5405-5421
Author(s):  
Ronald G. Schuyler ◽  
Joseph R. Tamburini ◽  
Steven J. Tamburini
Keyword(s):  
Process Control ◽  
Activated Sludge ◽  
Activated Sludge Process ◽  
Oxidation Index ◽  
Control Tool

Filter clogging in coarse pore filtration activated sludge process under high MLSS concentration

2006 ◽  
Vol 54 (10) ◽  
pp. 55-66 ◽  
Author(s):  
M.R. Alavi Moghaddam ◽  
Y. Guan ◽  
H. Satoh ◽  
T. Mino
Keyword(s):  
Activated Sludge ◽  
Settling Tank ◽  
Activated Sludge Process ◽  
Filamentous Bacteria ◽  
Membrane Pores ◽  
Conventional Activated Sludge ◽  
Filtration Membrane ◽  
Aerobic Process ◽  
Filter Clogging ◽  
Secondary Settling

Coarse pore filtration activated sludge process is a type of hybrid process in which the secondary settling tank of the conventional activated sludge process is replaced by non- woven and coarse pore filter modules. The filter has pores, which are irregular in shape, and much bigger than micro-filtration membrane pores in size. The objective of the study is to find out the effect of the microbial community structure on filter clogging in the coarse pore filtration activated sludge process under high MLSS concentration in aerobic and anoxic/aerobic (A/A) conditions. Filter clogging started from day 65 and 70 in the A/A and aerobic process, respectively, but it was more severe in the A/A process compared to that in the aerobic process. EPS contents of sludge did not change significantly during the operation in both processes, and did not have a crucial effect on the observed filter clogging. There was no strong evidence for direct effect of the type and number of metazoa on filter clogging. The main difference between aerobic sludge and A/A sludge during the filter clogging period was the relative abundance of filamentous bacteria. According to the obtained results, it can be concluded that a higher presence of filamentous bacteria could reduce the severity of filter clogging in a coarse pore filtration activated sludge process.

Kinetic Model of Sequencing Batch Activated Sludge Process for Municipal Wastewater Treatment

1991 ◽  
Vol 23 (4-6) ◽  
pp. 1097-1106 ◽  
Author(s):  
H. Nakazawa ◽  
K. Tanaka
Keyword(s):  
Wastewater Treatment ◽  
Kinetic Model ◽  
Activated Sludge ◽  
Mathematical Models ◽  
Municipal Wastewater ◽  
Pilot Scale ◽  
Activated Sludge Process ◽  
Municipal Wastewater Treatment ◽  
Operational Conditions ◽  
Aeration Time

Mathematical models based on the kinetic aspect of the sequencing batch activated sludge process were developed to explain the characteristics of the process treating municipal wastewater. These models are a steady-state model dealing with the overall relationship between biomass concentrations in a reactor and operational conditions of the process, and a kinetic model dealing with the behaviors of biomass and substrate in a reactor within one cycle time of the process. Applying these mathematical models for the results of pilot-scale experiments for municipal wastewater treatment, reasonable parameters' values were obtained and the effects of operating strategies including the aeration time ratio and the solids retention time became clear for the process performance.

ACTIVATED-SLUDGE PROCESS CONTROL: INSTRUMENTATION AND COMPUTER

1974 ◽  
pp. 317-327
Author(s):  
CARMEN F. GUARINO ◽  
ELMER F. BALLOTTI ◽  
MICHAEL D. NELSON ◽  
ALLAN B. EDWARDS
Keyword(s):  
Process Control ◽  
Activated Sludge ◽  
Activated Sludge Process

A NEW ACTIVATED SLUDGE PROCESS CONTROL TEST UNCOVERS SECONDARY CLARIFIER INEFFICIENCIES

2001 ◽  
Vol 2001 (15) ◽  
pp. 321-337 ◽  
Author(s):  
Eric J. Wahlberg ◽  
Sidney Biesterfeld ◽  
Greg Farmer ◽  
David Kinnear ◽  
Leonard Robb
Keyword(s):  
Process Control ◽  
Activated Sludge ◽  
Activated Sludge Process ◽  
Control Test ◽  
Secondary Clarifier
Sign in / Sign up

Export Citation Format

Share Document