Modeling the economic feasibility of large-scale net-zero water management: A case study

Tianjiao Guo, James Douglas Englehardt, Howard J. Fallon

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

While municipal direct potable water reuse (DPR) has been recommended for consideration by the U.S. National Research Council, it is unclear how to size new closed-loop DPR plants, termed "net-zero water (NZW) plants", to minimize cost and energy demand assuming upgradient water distribution. Based on a recent model optimizing the economics of plant scale for generalized conditions, the authors evaluated the feasibility and optimal scale of NZW plants for treatment capacity expansion in Miami-Dade County, Florida. Local data on population distribution and topography were input to compare projected costs for NZW vs the current plan. Total cost was minimized at a scale of 49 NZW plants for the service population of 671,823. Total unit cost for NZW systems, which mineralize chemical oxygen demand to below normal detection limits, is projected at ∼$10.83 / 1000 gal, approximately 13% above the current plan and less than rates reported for several significant U.S. cities.

Original languageEnglish (US)
Pages (from-to)811-823
Number of pages13
JournalWater Environment Research
Volume88
Issue number9
DOIs
StatePublished - Sep 1 2016

Fingerprint

Water management
water management
Economics
Water
economics
modeling
cost
Potable water
Drinking Water
water
Costs
drinking water
Population distribution
population distribution
Chemical oxygen demand
chemical oxygen demand
Topography
topography

Keywords

  • Case study
  • Direct potable water reuse
  • Distributed
  • Net-zero water

ASJC Scopus subject areas

  • Environmental Chemistry
  • Water Science and Technology

Cite this

Modeling the economic feasibility of large-scale net-zero water management : A case study. / Guo, Tianjiao; Englehardt, James Douglas; Fallon, Howard J.

In: Water Environment Research, Vol. 88, No. 9, 01.09.2016, p. 811-823.

Research output: Contribution to journalArticle

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