Reduction of the water scarcity footprint and water conservation measures at housing level

Authors

DOI:

https://doi.org/10.32870/rvcs.v0i9.137

Keywords:

water sustainability, water conservation, reduction of domestic consumtion, use gray water

Abstract

Pachuca de Soto satisfies only 45% of the daily allowance for domestic consumption. Conservation measures proposed are: to reuse recoverable gray water and harvest rainwater in a social interest housing to reduce the need for clean water for non-potable purposes. The volumes of necessary drinking water (167.7 L/inhab/d), reusable gray water (73 L/inhab/d), and wastewater (53.4 L/inhab/d) were quantified. The average daily rainfall (Adr = 1.28 mm) was determined for one year, from a historical record of 1991-2014. The volume of rainwater with Adr, the available roof area (A = 75 m2), and a runoff coefficient for concrete surfaces (Cr = 0.8) were estimated. The total water scarcity (WSF) footprint was determined, adding the direct (DWSF) and indirect (IWSF) water scarcity indicators. A regional water availability indicator (AWARE Annual agri) was used; direct inputs (drinking water consumption before and after using conservation measures), as well as an indirect entry (water consumed in the operation of a ¾ Hp pump). The WSF was reduced from 4.83 to 1.91 m3 equivalent, mainly through the DWSF.

Author Biographies

Carlos Alfredo Bigurra Alzati, Autonomous University of the State of Hidalgo, Mexico

Doctor in Architecture from the National Autonomous University of Mexico (UNAM), a full-time professor in the degree in Architecture of the academic area of ​​engineering and architecture of the Institute of Basic Sciences and Engineering of the Autonomous University of the State of Hidalgo. Areas of interest: Design, construction, technologies, sustainable habitability, and conservation of historic buildings. Research lines: Design, construction, and sustainable technologies. Distinctions and awards: Level "C" or candidate of the SNI of CONACYT. He has published scientific articles in indexed journals.  

Gabriela Alejandra Vázquez Rodríguez, Autonomous University of the State of Hidalgo, Mexico

Chemical Engineer from the Technological Institute of Chihuahua and PhD in Microbiology and Biotechnology from the Institut National des Sciences Appliquées of Toulouse, France. She is a research professor in the academic area of ​​Chemistry at the Autonomous University of the State of Hidalgo, where she specializes in the development of water treatment processes. She is a member of the National System of Researchers, Level II, and a disseminator of environmental sciences, environmental history and sustainability.    

Liliana Lizárraga-Mendiola, Autonomous University of the State of Hidalgo, Mexico

Research professor at the Autonomous University of the State of Hidalgo. Academic area of Engineering and Architecture, Doctor in Earth Sciences, National Autonomous University of Mexico. National researcher SNI Level 1, research area: Design and Characterization of Sustainable Urban Drainage Systems. It is certified in the promotion of rainwater harvesting and utilization technologies (AMSCALL AC).

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Published

2021-01-31

How to Cite

Bigurra Alzati, C. A., Vázquez Rodríguez, G. A., & Lizárraga-Mendiola, L. (2021). Reduction of the water scarcity footprint and water conservation measures at housing level. Vivienda Y Comunidades Sustentables, (9), 61–75. https://doi.org/10.32870/rvcs.v0i9.137

Issue

No. 9 (2021): Vivienda y Comunidades Sustentables

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Research Articles

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