Characterization of manganese oxide amendments for in situ remediation of mercury-contaminated sediments

Mn(iv)-oxide amendment experiments with mercury-contaminated sediments demonstrate mineral redox buffering by mixed-valent (Mn, Fe)(iii, ii) oxides to limit mercury methylation.

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Strategic selection of an optimal sorbent mixture for in-situ remediation of heavy metal contaminated sediments: Framework and case study

Journal of Environmental Management ◽

10.1016/j.jenvman.2012.03.037 ◽

2012 ◽

Vol 105 ◽

pp. 1-11 ◽

Cited By ~ 22

Author(s):

Y.W. Chiang ◽

R.M. Santos ◽

K. Ghyselbrecht ◽

V. Cappuyns ◽

J.A. Martens ◽

...

Keyword(s):

Heavy Metal ◽

Contaminated Sediments ◽

In Situ Remediation ◽

Selection Of

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INNOVATIVE IN-SITU REMEDIATION OF CONTAMINATED SEDIMENTS FOR SIMULTANEOUS CONTROL OF CONTAMINATION AND EROSION

10.2172/921682 ◽

2007 ◽

Author(s):

A Knox ◽

M Michael Paller ◽

D Danny D. Reible ◽

I Ioana G. Petrisor

Keyword(s):

Contaminated Sediments ◽

In Situ Remediation ◽

Simultaneous Control

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Evaluation of two bacterial delivery systems for in-situ remediation of PAH contaminated sediments

Journal of Soils and Sediments ◽

10.1007/bf02989468 ◽

2003 ◽

Vol 3 (1) ◽

pp. 41-48 ◽

Cited By ~ 4

Author(s):

Don C. Haddox ◽

Teresa J. Cutright

Keyword(s):

Delivery Systems ◽

Contaminated Sediments ◽

In Situ Remediation

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Multidisciplinary Characterization of Chlorinated Solvents Contamination and In-Situ Remediation with the Use of the Direct Current Resistivity and Time-Domain Induced Polarization Tomography

Geosciences ◽

10.3390/geosciences9120487 ◽

2019 ◽

Vol 9 (12) ◽

pp. 487 ◽

Cited By ~ 3

Author(s):

Aristeidis Nivorlis ◽

Torleif Dahlin ◽

Matteo Rossi ◽

Nikolas Höglund ◽

Charlotte Sparrenbom

Keyword(s):

Direct Current ◽

Time Domain ◽

Chlorinated Solvents ◽

Induced Polarization ◽

Contaminated Sites ◽

In Situ Remediation ◽

Polarization Tomography ◽

Refraction Tomography

Soil contamination is a widespread problem and action needs to be taken in order to prevent damage to the groundwater and the life around the contaminated sites. In Sweden, it is estimated that more than 80,000 sites are potentially contaminated, and therefore, there is a demand for investigations and further treatment of the soil. In this paper, we present the results from a methodology applied in a site contaminated with chlorinated solvents, for characterization of the contamination in order to plan the remediation and to follow-up the initial step of in-situ remediation in an efficient way. We utilized the results from three different methods; membrane interface probe for direct measurement of the contaminant concentrations; seismic refraction tomography for investigating the depth to the bedrock interface; and direct current resistivity and time-domain induced polarization tomography to acquire a high-resolution imaging of the electrical properties of the subsurface. The results indicate that our methodology is very promising in terms of site characterization, and furthermore, has great potential for real-time geophysical monitoring of contaminated sites in the future.

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Passive PE Sampling in Support of In Situ Remediation of Contaminated Sediments

10.21236/ad1002553 ◽

2015 ◽

Author(s):

Philip Gschwend ◽

Kevin Palaia

Keyword(s):

Contaminated Sediments ◽

In Situ Remediation

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In Situ Atom Probe Deintercalation of Lithium-Manganese-Oxide

Microscopy and Microanalysis ◽

10.1017/s1431927616012691 ◽

2017 ◽

Vol 23 (2) ◽

pp. 314-320 ◽

Cited By ~ 3

Author(s):

Björn Pfeiffer ◽

Johannes Maier ◽

Jonas Arlt ◽

Carsten Nowak

Keyword(s):

Manganese Oxide ◽

Chemical Potential ◽

Methodological Approach ◽

Ionic Mobility ◽

Atom Probe ◽

Lithium Manganese Oxide ◽

Ionic Conductors ◽

Lithium Manganese

AbstractAtom probe tomography is routinely used for the characterization of materials microstructures, usually assuming that the microstructure is unaltered by the analysis. When analyzing ionic conductors, however, gradients in the chemical potential and the electric field penetrating dielectric atom probe specimens can cause significant ionic mobility. Although ionic mobility is undesirable when aiming for materials characterization, it offers a strategy to manipulate materials directly in situ in the atom probe. Here, we present experimental results on the analysis of the ionic conductor lithium-manganese-oxide with different atom probe techniques. We demonstrate that, at a temperature of 30 K, characterization of the materials microstructure is possible without measurable Li mobility. Also, we show that at 298 K the material can be deintercalated, in situ in the atom probe, without changing the manganese-oxide host structure. Combining in situ atom probe deintercalation and subsequent conventional characterization, we demonstrate a new methodological approach to study ionic conductors even in early stages of deintercalation.

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