Vivianite precipitation and phosphate sorption following iron reduction in anoxic soils

Journal of Environmental Quality
Lisa HeibergB Hansen Hans Christian

Abstract

Phosphorus retention in lowland soils depends on redox conditions. The aim of this study was to evaluate how the Fe(III) reduction degree affects phosphate adsorption and precipitation. Two similarly P-saturated, ferric Fe-rich lowland soils, a sandy and a peat soil, were incubated under anaerobic conditions. Mössbauer spectroscopy demonstrated that Fe(III) in the sandy soil was present as goethite and phyllosilicates, whereas Fe(III) in the peat soil was mainly present as polynuclear, Fe-humic complexes. Following anoxic incubation, extensive formation of Fe(II) in the solids occurred. After 100 d, the Fe(II) production reached its maximum and 34% of the citrate-bicarbonate-dithionite extractable Fe (Fe(CBD)) was reduced to Fe(II) in the sandy soil. The peat soil showed a much faster reduction of Fe(III) and the maximum reduction of 89% of Fe(CBD) was reached after 200 d. Neoformation of a metavivianite/vivianite phase under anoxic conditions was identified by X-ray diffraction in the peat. The sandy soil exhibited small changes in the point of zero net sorption (EPC₀) and P(i) desorption with increasing Fe(III) reduction, whereas in the peat soil P desorption increased from 80 to 3100 μmol kg⁻¹ and EPC₀ increased from 1.7 to ...Continue Reading

References

Oct 6, 2005·Environmental Science & Technology·Colleen M HanselScott Fendorf
Apr 1, 1986·Applied and Environmental Microbiology·D R Lovley, E J Phillips
Sep 4, 2007·Journal of Environmental Quality·Ben W J SurridgeAndrew J Baird
Aug 30, 2008·Environmental Science & Technology·Torbjörn KarlssonReiner Giesler
Nov 27, 2008·Environmental Science & Technology·Karin EusterhuesUdo Schwertmann
Aug 26, 2009·Journal of Environmental Quality·Carl Christian HoffmannBrian Kronvang
Dec 31, 2009·Environmental Science & Technology·Frank-Andreas WeberRuben Kretzschmar
Feb 24, 2010·Journal of Environmental Quality·Lisa HeibergHans Christian Bruun Hansen

❮ Previous
Next ❯

Citations

May 8, 2015·Environmental Science & Technology·Philipp WilfertMark C M van Loosdrecht
Apr 7, 2016·PloS One·Willem-Jan EmsensRudy van Diggelen
Mar 15, 2015·Environmental Science. Processes & Impacts·Malin Andersson, Ola Anfin Eggen
Dec 8, 2015·Journal of Environmental Quality·Xiaoqian JiangErwin Klumpp
Jun 23, 2021·Journal of Environmental Quality·Genevieve J SmithOwen Fenton
Nov 10, 2018·Environmental Science & Technology·Shu WangNan Li
Aug 3, 2021·Journal of Environmental Quality·Bobby G DuerschJ William Louda

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.