Metal release in shallow aquifers impacted by deep CO2 fluxes

被引：5

作者：

Agnelli, Marco ^{[1
]}

Grandia, Fidel ^{[1
]}

Soler, David ^{[2
]}

Sainz-Garcia, Alvaro ^{[1
]}

Brusi, David ^{[2
]}

Zamorano, Manel ^{[2
]}

Mencio, Anna ^{[2
]}

机构：

[1] Amphos21 Consulting SL, Passeig Garcia Faria 49, Barcelona 08019, Spain

[2] Univ Girona, Dept Ciencies Ambientals, GEOCAIVIB, C Maria Aurelia Capmany 69, Girona 17003, Spain

来源：

CARBON IN NATURAL AND ENGINEERED PROCESSES | 2018年 / 146卷

关键词：

CCS; Leakage; Metal transport; Electrical resistivity tomography; GEOLOGICAL STORAGE; POTENTIAL IMPACTS; LEAKAGE; CALATRAVA; CAMPO;

D O I：

10.1016/j.egypro.2018.07.006

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The impact of CO2 leakage from underground storage formations on shallow water resources is a concerning aspect in CO2 capture and storage (CCS) risk assessment. In Campo de Calatrava region (Spain), natural CO2 fluxes from the Earth's mantle interact with shallow aquifers, resulting in significant changes in their physical and chemical properties. The resultant water is slightly acidic (pH 5.9-6.4), oxidizing, and enriched in iron (up to 6.1x10(-4) mol.L-1) and other metals usually found at trace concentrations. Thermodynamic calculations reveal that aqueous Fe(III) carbonate complexes play an important role in the persistence of this high concentration of iron and trace metals in solution. Copyright (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：38 / 46

页数：9

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