 Groundwater quality and geothermal energy. The case of Cerro Prieto Geothermal Field, MéxicoMaria Aurora Armienta, Ramiro Rodriguez Revilla (), N. Ceniceros, O. Cruz, A. Aguayo, P. Morales and E. Cienfuegos Renewable Energy, 2014, vol. 63, issue C, 236-254 Abstract: The influence of the Cerro Prieto Geothermal Field (CPGF) on groundwater quality of the close-by agricultural area was evaluated by means of chemical and isotopic determinations. According to irrigation standards, concentrations of As, Cd, Pb, Crtot, Cr(VI), Cu, Cd, Hg, B in agricultural wells showed the suitability of the water for irrigation. Iron was below irrigation limits in all but one well. However, chloride levels were above those limits in 83 out of 87 collected samples. Isotopic determinations of δ2H, δ18O, δ34S, δ13C, and spatial concentration trends of elements related with geothermal brines and toxic metals and metalloids did not indicate an influence of the CPGF to groundwater in the nearby agricultural area. Isotopic values of δ2H, δ18O showed the occurrence of evaporation processes and infiltration of canal's irrigation water to geothermal water reservoirs and to groundwater in the agricultural zone. High chloride concentrations might be associated with these processes. Keywords: Water quality; Arsenic; Heavy metals; Isotopes; Agriculture; Geothermal water (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:63:y:2014:i:c:p:236-254 DOI: 10.1016/j.renene.2013.09.018 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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