Control of lead contamination in water distribution networks: A dynamic optimization framework

Abhilasha Maheshwari, Ahmed Abokifa, Ravindra Gudi, Pratim Biswas

Research output: Contribution to journalConference articlepeer-review

Abstract

This study investigates the optimization of free chlorine-based disinfectant dosage for controlling the dissolution of lead (Pb) while limiting disinfection by-products (DBPs) formation in water distribution networks. A dynamic optimization framework is developed in this study to account for the impact of spatial and temporal variations of network hydraulics and water chemistry on dissolved lead concentrations. Accordingly, a dynamic schedule of disinfectant dosage is proposed to minimize water lead levels and two-point chlorine residual violations in the network. The results suggest that optimization of water chemistry parameters such as pH and orthophosphate dosage provide an additional degree of freedom to be explored in the problem of optimizing disinfectant dosage for compliance with conflicting mandates regulating lead levels and DBPs concentration in drinking water.

Original languageEnglish (US)
Pages (from-to)277-282
Number of pages6
JournalIFAC-PapersOnLine
Volume53
Issue number1
DOIs
StatePublished - 2020
Externally publishedYes
Event6th Conference on Advances in Control and Optimization of Dynamical Systems, ACODS 2020 - Chennai, India
Duration: Feb 16 2020Feb 19 2020

Keywords

  • Chlorine disinfection
  • Disinfection by-products
  • Drinking water
  • Lead dissolution
  • Water quality

ASJC Scopus subject areas

  • Control and Systems Engineering

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