Geochemical Thermodynamics of Lead Removal from Water with Limestone

被引：8

作者：

Davis, Arden D. ^{[1
]}

Webb, Cathleen J. ^{[2
]}

Sorensen, Jenifer L. ^{[3
]}

Dixon, David J. ^{[1
]}

Hudson, Roberta ^{[4
]}

机构：

[1] South Dakota Sch Mines & Technol, Rapid City, SD 57701 USA

[2] Western Kentucky Univ, Bowling Green, KY 42101 USA

[3] Minnesota Dept Nat Resources, St Paul, MN USA

[4] South Dakota Dept Environm & Nat Resources, Pierre, SD USA

来源：

WATER AIR AND SOIL POLLUTION | 2018年 / 229卷 / 06期

关键词：

Lead Tracemetals; Heavy metals; Limestone; Mine drainage; Drinking water; Hydrocerussite;

D O I：

10.1007/s11270-018-3824-z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Limestone-based material can reduce concentrations of lead below 0.001 mg/L in water during metals-removal tests with field and laboratory samples, resulting in >99% removal efficiency. Thermodynamic constraints appear to be favorable for reactions involving the formation of cerussite and hydrocerussite during lead removal with untreated limestone. Thermodynamic values for these reactions show strongly negative Gibbs free energy changes and yield a theoretical removal limit of about 0.001 mg/L or less for lead, demonstrating reasonable agreement with tests on laboratory and field samples. The solubility product of hydrocerussite is about 10(-47), indicating the waste product of lead removal with limestone is likely to be stable at neutral to basic pH values.

引用

页数：7

共 22 条

[1] Strontium, Nickel, Cadmium, and Lead Substitution into Calcite, Studied by Density Functional Theory
Andersson, M. P.
Sakuma, H.
Stipp, S. L. S.
[J]. LANGMUIR, 2014, 30 (21) : 6129 - 6133
[2] [Anonymous], 2017, LEAD POIS HLTH
[3] [Anonymous], THESIS
[4] [Anonymous], ENV INDICATORS METAL
[5] [Anonymous], 2012, SUSTAINABILITY
[6] [Anonymous], SOC MIN METALL EXPLO
[7] [Anonymous], MIN ENG
[8] Heavy metals (Cd, Pb, Zn, Ni, Cu and Cr(III)) removal from water in Malaysia: Post treatment by high quality limestone
Aziz, Hamidi A.
Adlan, Mohd. N.
Ariffin, Kamar S.
[J]. BIORESOURCE TECHNOLOGY, 2008, 99 (06) : 1578 - 1583
[9] Laboratory testing of trace metals removal from mine drainage and arsenic removal from groundwater in the Black Hills of South Dakota
Davis, Arden D.
Webb, Cathleen J.
Sorensen, Jenifer L.
Dixon, David J.
Betemariam, Haile
[J]. ENVIRONMENTAL EARTH SCIENCES, 2014, 72 (02) : 355 - 361
[10] Faure G., 1991, Principles and Applications of Inorganic Geochemistry

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