Mineral formation during bacterial sulfate reduction in the presence of different electron donors and carbon sources

Han, Xiqiu; Schultz, Logan N.; Zhang, Weiyan; Zhu, Jinghan; Meng, Fan-Xu; Geesey, Gill G.

doi:10.1016/j.chemgeo.2016.04.022

Cited by 13 publications

(6 citation statements)

References 99 publications

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“…(2) the moderate negative correlation (r = −0.7) between TIC contents, represented by dolomite, and bulk-rock δ 13 C values (high TIC contents coincide with low δ 13 C values); and (3) dolomite crystal habits (Figs 4f, g, 5d-f; cf. Warthmann et al 2000;van Lith et al 2003;Sanz-Montero et al 2008;Bontognali et al 2010;Han et al 2016).…”

Section: D Primary Lower Gypsum: Implications On Depositional Environments and Stratigraphic Architecturementioning

confidence: 99%

The response of water column and sedimentary environments to the advent of the Messinian salinity crisis: insights from an onshore deep-water section (Govone, NW Italy)

et al. 2020

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During Messinian time, the Mediterranean underwent hydrological modifications culminating 5.97 Ma ago with the Messinian salinity crisis (MSC). Evaporite deposition and alleged annihilation of most marine eukaryotes were taken as evidence of the establishment of basin-wide hypersalinity followed by desiccation. However, the palaeoenvironmental conditions during the MSC are still a matter of debate, chiefly because most of its sedimentary record is buried below the abyssal plains of the present-day Mediterranean Sea. To shed light on environmental change at the advent and during the early phase of the MSC, we investigated the Govone section from the Piedmont Basin (NW Italy) using a multidisciplinary approach (organic geochemical, petrographic, and carbon and oxygen stable isotope analyses). The Govone section archives the onset of the crisis in a succession of organic-rich shales and dolomite-rich marls. The MSC part of the succession represents the deep-water equivalent of sulphate evaporites deposited at the basin margins during the first phase of the crisis. Our study reveals that the onset of the MSC was marked by the intensification of water-column stratification, rather than the establishment of widespread hypersaline conditions. A chemocline divided the water column into an oxygen-depleted, denser and more saline bottom layer and an oxygenated, upper seawater layer influenced by freshwater inflow. Vertical oscillations of the chemocline controlled the stratigraphic architecture of the sediments pertaining to the first stage of the MSC. Accordingly, temporal and spatial changes of water masses with different redox chemistries must be considered when interpreting the MSC event.

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Section: D Primary Lower Gypsum: Implications On Depositional Environments and Stratigraphic Architecturementioning

confidence: 99%

The response of water column and sedimentary environments to the advent of the Messinian salinity crisis: insights from an onshore deep-water section (Govone, NW Italy)

et al. 2020

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“…There is evidence that electron donor exists on the surface of calcite (Ryazantseva and Bunin, 2015). During the formation of calcite, electron donors were needed for bacterial sulfate reduction (Han et al, 2016). The low denitrification rate (Fig.…”

Section: Effect Of Different Natural Materials Addition On N Controlmentioning

confidence: 99%

The effect of natural materials using as sediment remediation on phosphorus and nitrogen control in a mesocosm

Tang

Deng

et al. 2020

Preprint

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Background Nitrogen (N) and phosphorus (P) control in sediment remediation through adding natural material has been paid more and more attention. In this study, different natural material including iron-rich clay mineral, calcite, kaoline, sugarcane bagasse and Phragmites detritus was applied to test the effect on N and P control in a mesocosm experiment. Results Iron-rich clay mineral and Phragmites detritus had an obvious advantage on P control in terms of almost undetectable soluble reactive phosphorus (SRP) in water column throughout the experiment, which could be explained by strong P adsorption ability. The high available organic carbon in sediment and water column after sugarcane bagasse addition provided enough electron donors for denitrification and dissimilatory nitrate reduction to ammonium (DNRA), which was responsible for nitrate (NO 3 - -N) deficiency and ammonium (NH 4 + -N) accumulation in water column. Also this resulted in anaerobic status, further fuelling P release from iron-bound P induced by anoxia. Thus, sugarcane bagasse application should be considered its dosage in order to balance the denitrification and DNRA as well as P release. Calcite and Phragmites detritus should be recommended as remediation material for N removal according to the significant promotion of denitrification and limitation of DNRA, finally resulting in low NO 3 - -N and NH 4 + -N. These results could be explained by the shift of functional microbial community composition and abundance after natural material addition. Conclusions Iron-rich clay mineral and Phragmites detritus should be regarded as the promising sediment remediation material for P immobilization due to the increase of P adsorption ability. Taken together, the selection of sediment remediation material should combine the N and P coupling relationship, avoiding that NO 3 - -N removal caused the P leaching or NH 4 + -N accumulation.

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“…Briefly, at a ratio of 1:7 by weight, the sediments and water were combined into a slurry, purged by helium for approximately 30 min, and then transferred into 20 respective 12-mL gas-tight vials (Labco Exetainers) under a helium atmosphere. To eliminate residual nitrite, nitrate, and oxygen, the vials were preincubated in a shaker at 150 rpm for 24 h. Then, 15…”

Section: Microbial Activity Analysismentioning

confidence: 99%

“…There is evidence that electron donors exist on the surface of calcite [36]. During the formation of calcite, electron donors are needed for bacterial sulfate reduction [15]. The low denitrification rate (Fig.…”

Section: Effects Of the Addition Of Different Natural Materials On N mentioning

confidence: 99%

The effect of natural materials used as sediment remediation on phosphorus and nitrogen control in a mesocosm

Tang

Deng

et al. 2020

Environ Sci Eur

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Background: Achieving nitrogen (N) and phosphorus (P) control in sediment remediation projects by adding natural materials is receiving increasing attention. In this study, different natural materials, including iron-rich clay minerals, calcite, kaoline, sugarcane bagasse and Phragmites detritus, were applied to test their effects on N and P in a mesocosm experiment. Results: Iron-rich clay minerals and Phragmites detritus had obvious advantages for P control; they resulted in almost undetectable levels of soluble reactive phosphorus (SRP) in the water column throughout the experiment. This finding can be explained by their strong P adsorption ability. The high level of available organic carbon in the sediment and water column after sugarcane bagasse addition provided enough electron donors for denitrification and dissimilatory nitrate reduction to ammonium (DNRA), which caused nitrate (NO 3 −-N) deficiency and ammonium (NH 4 +-N) accumulation in the water column. Additionally, this resulted in anaerobic conditions, further fuelling the release of P from iron-bound P induced by anoxia. Thus, the amount of sugarcane bagasse applied should be considered carefully in order to balance denitrification and DNRA as well as P releases. Calcite and Phragmites detritus are recommended as remediation materials for N removal based on their significant promotion of denitrification and limitation of DNRA, which resulted in low NO 3 −-N and NH 4 +-N levels. These results can be explained by the shifts in the functional microbial community composition and abundance after the addition of natural materials. Conclusions: Iron-rich clay minerals and Phragmites detritus are promising sediment remediation materials for P immobilization due to their strong P adsorption ability. Taken together, the selection of sediment remediation materials should consider the N and P coupling relationship, to prevent NO 3 −-N removal from causing P leaching or NH 4 +-N accumulation.

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Mineral formation during bacterial sulfate reduction in the presence of different electron donors and carbon sources

Cited by 13 publications

References 99 publications

The response of water column and sedimentary environments to the advent of the Messinian salinity crisis: insights from an onshore deep-water section (Govone, NW Italy)

The response of water column and sedimentary environments to the advent of the Messinian salinity crisis: insights from an onshore deep-water section (Govone, NW Italy)

The effect of natural materials using as sediment remediation on phosphorus and nitrogen control in a mesocosm

The effect of natural materials used as sediment remediation on phosphorus and nitrogen control in a mesocosm

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