Design of Feedback Control Algorithm for Chlorine Residual Maintenance in Water Distribution Systems

2001 ◽  
Author(s):  
Zhong Wang ◽  
Marios M. Polycarpou ◽  
Feng Shang ◽  
James G. Uber
Keyword(s):  
Feedback Control ◽  
Control Algorithm ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Chlorine Residual

Bench scale investigations of bacterial regrowth in drinking water distribution systems

1998 ◽  
Vol 38 (8-9) ◽  
pp. 275-282 ◽  
Author(s):  
P. J. Ollos ◽  
R. M. Slawson ◽  
P. M. Huck
Keyword(s):  
Drinking Water ◽  
Ductile Iron ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Support Surface ◽  
Drinking Water Distribution Systems ◽  
Chlorine Residual ◽  
Drinking Water Distribution ◽  
The Impact

Laboratory reactors operated under conditions relevant for drinking water distribution systems were used to examine the impact of support surface, chloramine residual, biodegradable organic matter (BOM) concentration, shear, and temperature on the growth of heterotrophic microorganisms. In terms of both heterotrophic bacterial growth-supporting and corrosion characteristics, mild steel and stainless steel/polycarbonate substrata bracket metallic pipe materials, such as ductile iron. Results of gradually increasing disinfectant dosage studies suggest that a 0.5 mg/L free or combined chlorine residual on polycarbonate surfaces, and 0.5 mg/L free chlorine or 2.0 mg/L combined chlorine residual on ductile iron substrata would be needed to reduce biofilm HPC numbers to approximately 103 CFU/cm2. Regression analysis suggests low or very low correlation between biofilm and suspended HPC numbers.

An Ontological Approach to Water Distribution Systems Management

WRPMD'99 ◽  
1999 ◽  
Author(s):  
P. Costa ◽  
A. Esposito ◽  
C. Gualtieri ◽  
D. Pianese ◽  
G. Pulci Doria ◽  
...  
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Systems Management ◽  
Ontological Approach

Robust Estimation of Integrated Hydraulics and Parameters in Water Distribution Systems

2001 ◽  
Author(s):  
Mietek A. Brdys ◽  
Kazimierz Duzinkiewicz ◽  
Michal Grochowski ◽  
Tomasz Rutkowski
Keyword(s):  
Robust Estimation ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems
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