Browse all Channels
IWA Publishing
Alliance House, 12 Caxton Street ,
London ,
United Kingdom SW1H 0QS
United Kingdom
  4. Autocalibration of dynamic bacterial growth model for water ...

Autocalibration of dynamic bacterial growth model for water distribution system using GA

0
- By: ,

Courtesy of IWA Publishing

The presence of residual chlorine and organic matter govern the bacterial regrowth within a water distribution system. The bacterial growth model is essential to predict the spatial and temporal variation of all these substances throughout the system. The parameters governing the bacterial growth and biodegradable dissolved organic carbon (BDOC) utilization are difficult to determine by experimentation. In the present study, the estimation of these parameters is addressed by using simulation-optimization procedure. The optimal solution by genetic algorithm (GA) has indicated that the proper combination of parameter values are significant rather than correct individual values. The applicability of the model is illustrated using synthetic data generated by introducing noise in to the error-free measurements. The GA was found to be a potential tool in estimating the parameters controlling the bacterial growth and BDOC utilization. Further, the GA was also used for evaluating the sensitivity issues relating parameter values and objective function. It was observed that μ and kcl are more significant and dominating compared to the other parameters. But the magnitude of the parameters is also an important issue in deciding the dominance of a particular parameter. GA is found to be a useful tool in autocalibration of bacterial growth model and a sensitivity study of parameters.

Keywords: BDOC, bacterial content, chlorine, distribution system, GA, sensitivity

Related articles

  • Get More Out of Water Resources Engineering Models

    by Venu Kandiah, PhD, P.E.Senior Water Resources Engineer The effort required to develop water resources engineering models can be significant. But once developed, in many instances the models are only evaluated for a limited, or a single set of conditions. The results and predictions obtained from these evaluations are the ones used in design, presented in reports and conveyed to decision makers and the public. This approach might serve theimmediateneeds of a project; however, for most modeling efforts a...

  • Storm Water Master Plan development employing an integrated 1D/2D model for the Redwood Basin in ...

    The use of two-dimensional (2D) storm water models has increased in recent years primarily due to advances in software, hardware and the availability of surface data. These advances allow for robust and diverse applications including basinwide storm water assessments. Storm water master planning is a critical element for the development of state and local agency comprehensive plans, capital improvement projects, and associated budgets.The Josephine County Public Works Department in Josephine County, Oregon, used...

  • Get more out of Water Resources Engineering Models

    The effort required to develop water resources engineering models can be significant. But once developed, in many instances the models are only evaluated for a limited, or a single set of conditions. The results and predictions obtained from these evaluations are the ones used in design, presented in reports and conveyed to decision makers and the public. This approach might serve theimmediateneeds of a project; however, for most modeling efforts a limited amount of additional effort can provide more knowledge...

  • Modelling the Thatcham Flood - Case Study

    OverviewOn 20th July 2007, an unusual storm swept west across England along the approximate line of the M4 motorway. Thatcham, a town in Berkshire, was one of the worst affected. Many towns in England flooded that month from the Humber to Tewksbury. In fact there were 200 major floods worldwide in 2007 affecting 180 million people. Some of these floods were caused by rainfalls much more severe than those that crossed England but the amount of damage caused is related to whether the infrastructure can cope. In...

  • Horizon and water treatment

    Horizon is an environment company focused on water treatment.In the latest years,with the improvement of industrial economy,water quality is becoming worse and worse.To prevent the pollution trend,our government has raised the standard of sewage discharge several times,so traditional process and technology of water treatment can’t apply for the environmental requirements and technology revolution and innovation are necessary.In the recent years,many company and community have improved products to meet...

Customer comments

No comments were found for Autocalibration of dynamic bacterial growth model for water distribution system using GA. Be the first to comment!