The effect of aqueous sulphate on basaltic glass dissolution rates

被引：12
|
作者：
Flaathen, T. K. [1 ]
Oelkers, E. H. [1 ]
Gislason, S. [2 ]
机构：
[1] Univ Toulouse, LMTG, CNRS, IRD OMP, F-31400 Toulouse, France
[2] Univ Iceland, Inst Earth Sci, IS-101 Reykjavik, Iceland
来源：
MINERALOGICAL MAGAZINE | 2008年 / 72卷 / 01期
关键词：
basaltic glass; dissolution rates; CO2; sequestration; kinetics; aqueous sulphate;
D O I：
10.1180/minmag.2008.072.1.39
中图分类号：
P57 [矿物学];
学科分类号：
070901 ;
摘要：
Steady-state dissolution rates of basaltic glass were measured in mixed-flow reactors at 50 degrees C at pH 3 and 4 as a function of aqueous sulphate concentration. Dissolution rates in the presence of 0.1 moles/kg SO42- Were found to be similar to 3 times greater than those in corresponding SO42- free solutions. This rate increase is found to be approximately consistent with that calculated using a rate equation previously proposed by Gislason and Oelkers (2003). These results suggest that the addition of sulphate to injected CO2 may facilitate CO2 sequestration in basalts by accelerating basaltic glass dissolution rates thus More rapidly releasing aqueous Ca and Mg to Solution.
引用
收藏
页码：39 / 41
页数：3
相关论文
共 50 条
  • [1] The effect of aqueous sulphate on basaltic glass dissolution rates
    Flaathen, Therese K.
    Gislason, Sigurour R.
    Oelkers, Eric H.
    CHEMICAL GEOLOGY, 2010, 277 (3-4) : 345 - 354
  • [2] Mechanism, rates, and consequences of basaltic glass dissolution: II. An experimental study of the dissolution rates of basaltic glass as a function of pH and temperature
    Gislason, SR
    Oelkers, EH
    GEOCHIMICA ET COSMOCHIMICA ACTA, 2003, 67 (20) : 3817 - 3832
  • [3] The mechanism, rates and consequences of basaltic glass dissolution:: I.: An experimental study of the dissolution rates of basaltic glass as a function of aqueous Al, Si and oxalic acid concentration at 25°C and pH=3 and 11.
    Oelkers, EH
    Gislason, SR
    GEOCHIMICA ET COSMOCHIMICA ACTA, 2001, 65 (21) : 3671 - 3681
  • [4] Dissolution of diopside and basaltic glass: the effect of carbonate coating
    Stockmann, G.
    Wolff-Boenisch, D.
    Gislason, S. R.
    Oelkers, E. H.
    MINERALOGICAL MAGAZINE, 2008, 72 (01) : 135 - 139
  • [5] Effect of Cation Chloride Concentration on the Dissolution Rates of Basaltic Glass and Labradorite: Application to Subsurface Carbon Storage
    Mesfin, Kiflom G.
    Wolff-Boenisch, Domenik
    Gislason, Sigurdur R.
    Oelkers, Eric H.
    MINERALS, 2023, 13 (05)
  • [6] Does the presence of heterotrophic bacterium Pseudomonas reactans affect basaltic glass dissolution rates?
    Stockmann, Gabrielle J.
    Shirokova, Liudmila S.
    Pokrovsky, Oleg S.
    Benezeth, Pascale
    Bovet, Nicolas
    Gislason, Sigurdur R.
    Oelkers, Eric H.
    CHEMICAL GEOLOGY, 2012, 296 : 1 - 18
  • [7] Experimental dissolution of basaltic glass; effect of pH, oxalic acid and temperature
    Saebo, L
    Thorseth, IH
    Tumyr, O
    GEOCHIMICA ET COSMOCHIMICA ACTA, 2004, 68 (11) : A144 - A144
  • [8] DISSOLUTION OF BASALTIC GLASS IN SEAWATER - MECHANISM AND RATE
    CROVISIER, JL
    HONNOREZ, J
    EBERHART, JP
    GEOCHIMICA ET COSMOCHIMICA ACTA, 1987, 51 (11) : 2977 - 2990
  • [9] Does the presence of bacteria affect basaltic glass dissolution rates? 2: Live Pseudomonas reactants
    Stockmann, G. J.
    Shirokova, L. S.
    Pokrovsky, O. S.
    Oelkers, E. H.
    Benezeth, P.
    GEOCHIMICA ET COSMOCHIMICA ACTA, 2010, 74 (12) : A995 - A995
  • [10] Kinetic aspects of basaltic glass dissolution at 90 degrees C: role of aqueous silicon and aluminium
    Daux, V
    Guy, C
    Advocat, T
    Crovisier, JL
    Stille, P
    CHEMICAL GEOLOGY, 1997, 142 (1-2) : 109 - 126
12345