Retention of strontium, cesium, lead and uranium by bacterial iron oxides from a subterranean environment

Ferris, F. G.; Hallberg, Rolf; Lyvén, Benny; Pedersen, Karsten

doi:10.1016/s0883-2927(99)00093-1

Cited by 143 publications

(98 citation statements)

References 26 publications

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“…20 Information about organic carbon inclusion in the structure of bacterially formed mineral sheaths can be found in the literature. [24][25][26][27][28][29] The Natural biomass sample was examined by scanning electron microscopy. SEM images showed particles in the form of needles and spheres with rough surface ( Figure 5).…”

Section: Thermal Treatment At Low Temperaturesmentioning

confidence: 99%

“…but they are relatively expensive or use harmful chemical materials, the yields being not high enough. 9,10 Biogenic iron materials have application to electrical devices and electrochemical sources, 3,11,12 purification of waters, soil and air, [13][14][15][16][17] and catalysis. Biogenic iron oxides have been applied as catalysts in reactions of oxidation 10,[18][19][20] or as an (immobilising) support for catalysts of very high activity.…”

Section: Introductionmentioning

confidence: 99%

“…All these forms of bacterially formed mineral sheaths have wall structure consisting of iron (oxy)hydroxides nanospheres and organic carbon inclusion, as shown in Refs. [24][25][26][27]. Some authors even consider that inorganic compound(s) and organics are one united entity, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Treatment of Biogenic Iron-Containing Materials

Shopska¹,

Cherkezova‐Zheleva²,

Paneva³

et al. 2014

Croat. Chem. Acta

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Abstract. Biogenic iron oxides could find application in catalysis but their structure and composition should be well characterized. The content of organic rests due to their origin should also be controlled. Samples of natural biomass and biomass obtained after cultivation in Adler's medium of the SphaerotilusLeptothrix group of bacteria were treated by different techniques to reduce or totally remove the organic residues. The aim of the study was to find procedures, which prevent changes in the oxidation state of the iron and of the type of iron-containing compound(s) during treatment. Mössbauer spectroscopy, IRS, DTA, and SEM were used in the study. Chemical treatment with H 2 O 2 or NaOH at room temperature did not significantly change the samples. Thermal treatment in oxidative flow mixture conducted up to 250 °C resulted in a transformation of the iron-containing phases only. The organic matter, which is included in the structure of the particles, cannot easily be affected. DTA revealed that removal of organic rests occurred in the interval of 250-600 °C. However, the transformation of the initial compounds could not be prevented using such a treatment.

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Section: Thermal Treatment At Low Temperaturesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Treatment of Biogenic Iron-Containing Materials

Shopska¹,

Cherkezova‐Zheleva²,

Paneva³

et al. 2014

Croat. Chem. Acta

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show abstract

“…Cesium sorption to the silica sand is usually weak , whereby cesium exchanges with the protons of the Si-OH groups of SiO 2 . At alkaline pH, hydrous Fe-oxides have a higher Cs sorption capacity than quartz , Ferris, et al, 2000, and it consequently can be expected that Fe-coated silica sand retards the movement of Cs more as compared with Fe-removed silica sand. Cesium sorption to the silica sands was reduced by one order of magnitude when ionic strengths increased from 1 to 1000 mM.…”

Section: Batch Sorption Experimentsmentioning

confidence: 99%

Colloid-Facilitated Transport of Radionuclides through the Vadose Zone

Flury¹,

Harsh²,

McCarthy³

et al. 2006

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“…Kamber et al (2004) reported a stromatolite form Zambezi, and stated that the Tazaki, 2001;Anderson and Pedersen, 2003;Chan et al, 2004). BIOS are composite materials that consist of intact and partly degraded remains of bacterial cells intermixed with variable amounts of poorly ordered hydrous ferric oxide (HFO) minerals (Ferris et al, 1999(Ferris et al, , 2000Anderson and Pedersen, 2003). And BIOS are common in groundwater environment.…”

Section: Introductionmentioning

confidence: 99%

Microbial biomineralization of iron seepage water: Implication for the iron ores formation in intertidal zone of Zhoushan Archipelago, East China Sea

Yuan

Nan

et al. 2009

Geochem. J.

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The biogeochemcical reactions responsible for fossilized minerals preservation in ancient geological conditions are very often debatable, because little is known about the in situ processes at geo-historical period. In the present study, we describe the formation of iron ores collected in the intertidal zone of the Zhujiajian Island, Zhoushan Archipelago in the East China Sea. Morphological, mineralogical and geochemical analyses were performed on the iron ores and the surrounding geological materials. The results show that the iron ores, composed of spherical ferrihydrite and fibrous aggregates of goethite, presented morphological characteristics reminiscent of bacterial activity. The biominerization process in the seepage system is believed to represent an analogue mechanism for the biogenic formation of iron ores. The degradation of the ancient wood layer provided humic substances which accelerated the leaching process of iron from the surrounding bedrock and soils. The abundant leaching iron not only provided the sufficient iron material source, but also created the ideal conditions for the survival of the iron-oxidizing bacteria. The presence of Leptothrix-like sheaths and Gallionella-like stalks in the present-day seepage environment promoted the oxidization of Fe 2+ to Fe 3+ and the rapid precipitation of bacteriogenic iron oxides (BIOS) on bacterial sheaths and stalks, allowing the preservation of the morphological characteristics of the bacteria. As time went by, the amorphous biomineralization product (ferrihydrite) can further transfer to more crystalline goethite and therefore be preserved in the ores permanently, representing as the imprints of bacterial activity during the formation of iron ores. The present findings should help elucidate the role of bacteria in the formation of biogenic iron ores in different environments during geo-historical context.

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Retention of strontium, cesium, lead and uranium by bacterial iron oxides from a subterranean environment

Cited by 143 publications

References 26 publications

Treatment of Biogenic Iron-Containing Materials

Treatment of Biogenic Iron-Containing Materials

Colloid-Facilitated Transport of Radionuclides through the Vadose Zone

Microbial biomineralization of iron seepage water: Implication for the iron ores formation in intertidal zone of Zhoushan Archipelago, East China Sea

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