Desorption of arsenic from clay and humic acid-coated clay by dissolved phosphate and silicate

Sharma, Prasesh; Kappler, Andreas

doi:10.1016/j.jconhyd.2011.08.005

Cited by 49 publications

(25 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7), another mechanism can contribute to the sequestration of As from groundwater: the adsorption of As-organic complexes onto clay edges (Sharma and Kappler, 2011). The high availability of sedimentary organic materials could enhance this particular sorption mechanism at very low Eh values, i.e., when the occurrence of organic reductants is significant, as in the studied case.…”

Section: Aquifer Conditions and Arsenic Precipitationmentioning

confidence: 87%

Effects of redox conditions on the control of arsenic mobility in shallow alluvial aquifers on the Venetian Plain (Italy)

Carraro

Fabbri

Giaretta

et al. 2015

Science of The Total Environment

View full text Add to dashboard Cite

Section: Aquifer Conditions and Arsenic Precipitationmentioning

confidence: 87%

Effects of redox conditions on the control of arsenic mobility in shallow alluvial aquifers on the Venetian Plain (Italy)

Carraro

Fabbri

Giaretta

et al. 2015

Science of The Total Environment

View full text Add to dashboard Cite

“…NOM consists of heterogeneous mixtures of organic compounds with various structural and functional properties, 134 that influence the fate of arsenic by competitive adsorption and redox reactions, 135–137 and by formation of arsenic-bearing organic-metal-complexes and mineral colloids. 138,139 NOM molecules have combinations of carboxylic, amino, sulfhydryl, hydroxyl, esteric, phenolic, nitroso, and other functional groups.…”

Section: Coupling Of Arsenic Biogeochemical Cycling To Other Elementsmentioning

confidence: 99%

Linking Genes to Microbial Biogeochemical Cycling: Lessons from Arsenic

Zhu

Xue

Kappler

et al. 2017

Environ. Sci. Technol.

Self Cite

266

140

View full text Add to dashboard Cite

The biotransformation of arsenic is highly relevant to the arsenic biogeochemical cycle. Identification of the molecular details of microbial pathways of arsenic biotransformation coupled with analyses of microbial communities by meta-omics can provide insights into detailed aspects of the complexities of this biocycle. Arsenic transformations couple to other biogeochemical cycles, and to the fate of both nutrients and other toxic environmental contaminants. Microbial redox metabolism of iron, carbon, sulfur, and nitrogen affects the redox and bioavailability of arsenic species. In this critical review we illustrate the biogeochemical processes and genes involved in arsenic biotransformations. We discuss how current and future metagenomic-, metatranscriptomic-, metaproteomic-, and metabolomic-based methods will help to decipher individual microbial arsenic transformation processes, and their connections to other biogeochemical cycle. These insights will allow future use of microbial metabolic capabilities for new biotechnological solutions to environmental problems. To understand the complex nature of inorganic and organic arsenic species and the fate of environmental arsenic will require integrating systematic approaches with biogeochemical modeling. Finally, from the lessons learned from these studies of arsenic biogeochemistry, we will be able to predict how the environment changes arsenic, and, in response, how arsenic biotransformations change the environment.

show abstract

“…4a, curve 2). It was found [21][22][23] that the manifestation of such a doublet in the test frequency range is caused by a Si : Al ratio: the band is widened and shifted to the region of low frequencies with increasing the concen tration of tetrahedrally coordinated aluminum atoms. Indeed, according to Table 2, the concentration of aluminum in QS1 is higher than that in QS2 by a factor of 17.…”

Section: Resultsmentioning

confidence: 99%

Sorption of humic acids by quartz sands

Мальцева

Yudina

2014

Solid Fuel Chem.

View full text Add to dashboard Cite

The sorption of humic acids on different types of silicon containing materials was studied. It was shown that the interaction of humic acid fragments with a mineral surface depends on acid-base and surface active properties and on the composition of the mineral sorbent surface. An increase in the aluminum content of the sorbent strengthens the interaction of humic substances with the mineral surface. It was established that the humic acids of peat were better sorbed on the silicon containing surface due to the predominance of oxy gen containing groups in the composition of fragments.

show abstract

Desorption of arsenic from clay and humic acid-coated clay by dissolved phosphate and silicate

Cited by 49 publications

References 40 publications

Effects of redox conditions on the control of arsenic mobility in shallow alluvial aquifers on the Venetian Plain (Italy)

Effects of redox conditions on the control of arsenic mobility in shallow alluvial aquifers on the Venetian Plain (Italy)

Linking Genes to Microbial Biogeochemical Cycling: Lessons from Arsenic

Sorption of humic acids by quartz sands

Contact Info

Product

Resources

About