Water mass balances for the solaire and the 2020 tower

Implications for closing the water loop in high-rise buildings

Uta Krogmann, Clinton Andrews, Mookhan Kim, Gregory Kiss, Clare Miflin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Building water mass balances were performed for one 150-story conventional building scenario for comparison with three scenarios of the 2020 Tower, a hypothetical 150-story high-rise building with on-site wastewater treatment and reuse. To ensure that the assumptions for the hypothetical building are appropriate, a one-year water balance was also conducted of the existing 27-story Solaire building that partly closes the water/wastewater loop, meters major water flows and implements low-flow/water conserving fixtures and appliances. For comparison, a conventional 27-story building scenario with the same low-flow/water conserving fixtures as the Solaire but no water reuse was also assessed. The mean daily indoor water use in the Solaire was 246 l/(d cap) which exceeds mean daily water use found in the literature. The water mass balances showed that an urban high-rise building needs another source of water even when potable reuse water is produced because of losses during water end use and treatment (i.e., evaporation, water in treatment residues). Therefore, water conservation (i.e., modification of human behavior) and water efficiency improvements (i.e., equipment, appliances and fixtures) are important major factors in reducing the municipal water needed in all scenarios.

Original languageEnglish (US)
Pages (from-to)1414-1423
Number of pages10
JournalJournal of the American Water Resources Association
Volume43
Issue number6
DOIs
StatePublished - Dec 1 2007

Fingerprint

Plant shutdowns
Towers
water mass
mass balance
Water
water
low flow
water use
human behavior
high-rise building
water budget
water flow
Water meters
evaporation
Water conservation
wastewater
Wastewater treatment

All Science Journal Classification (ASJC) codes

  • Ecology
  • Water Science and Technology
  • Earth-Surface Processes

Keywords

  • Planning
  • Sustainability
  • Water conservation
  • Water supply

Cite this

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abstract = "Building water mass balances were performed for one 150-story conventional building scenario for comparison with three scenarios of the 2020 Tower, a hypothetical 150-story high-rise building with on-site wastewater treatment and reuse. To ensure that the assumptions for the hypothetical building are appropriate, a one-year water balance was also conducted of the existing 27-story Solaire building that partly closes the water/wastewater loop, meters major water flows and implements low-flow/water conserving fixtures and appliances. For comparison, a conventional 27-story building scenario with the same low-flow/water conserving fixtures as the Solaire but no water reuse was also assessed. The mean daily indoor water use in the Solaire was 246 l/(d cap) which exceeds mean daily water use found in the literature. The water mass balances showed that an urban high-rise building needs another source of water even when potable reuse water is produced because of losses during water end use and treatment (i.e., evaporation, water in treatment residues). Therefore, water conservation (i.e., modification of human behavior) and water efficiency improvements (i.e., equipment, appliances and fixtures) are important major factors in reducing the municipal water needed in all scenarios.",
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Water mass balances for the solaire and the 2020 tower : Implications for closing the water loop in high-rise buildings. / Krogmann, Uta; Andrews, Clinton; Kim, Mookhan; Kiss, Gregory; Miflin, Clare.

In: Journal of the American Water Resources Association, Vol. 43, No. 6, 01.12.2007, p. 1414-1423.

Research output: Contribution to journalArticle

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