The effect of oxygen on release and uptake of cobalt, manganese, iron and phosphate at the sediment-water interface

Sundby, Bjørn; Anderson, Leif G.; Hall, Per; Iverfeldt, Åke; Loeff, Mlchiel M.Rutgers van der; Westerlund, Stig

doi:10.1016/0016-7037(86)90411-4

Cited by 282 publications

(183 citation statements)

References 20 publications

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“…These flow patterns, as well as the flow rates, can influence the boundary layer resistance (cf. Santschi et al 1983;Jorgensen and Revsbech 1985), which in turn influences not only the oxygen uptake, but also the release and uptake of trace metals and nutrients (Sundby et al 1986;Westerlund et al 1986). They can explain some of the discrepancies in previous oxygen uptake measurements.…”

Section: Discussionmentioning

confidence: 99%

“…Underlying this layer was a finer grained sediment. Major elemental composition of the sediment was given by Sundby et al (1986). Benthic macrofauna at the site was described by Rutgers van der Loeff et al (1984).…”

Section: Methodsmentioning

confidence: 99%

“…In previous papers we have discussed the advantages and limitations of flux chambers in making flux measurements, and we have shown the importance of oxygen in controlling the fluxes of several other solutes (Rutgers van der Loeff et al 1984;Anderson et al 1986;Sundby et al 1986;Westerlund et al 1986). In this paper we present an in situ benthic flux chamber study of the influence of the benthic boundary layer on the kinetics of oxygen uptake at the sedimentwater interface and try to resolve the conflict surrounding measurements of oxygen uptake.…”

mentioning

confidence: 99%

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Oxygen uptake kinetics in the benthic boundary layer

Hall

Anderson

Loeff

et al. 1989

Limnology & Oceanography

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135

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A simple, one-dimensional, transport-reaction model of oxygen uptake by sediments during incubation experiments assumes zero-order reaction kinetics for oxygen removal in the pore water of sediments and takes the apparent diffusive limitation posed by the benthic boundary layer into account. Model calculations are in excellent agreement with experimental data obtained during in situ benthic flux chamber experiments in Gullmarsfjorden, Sweden, during fall (water temp, 10°C) and winter (-1'C). The boundary layer "resistance," represented by a mean diffusive sublayer thickness, was estimated with a series of radioactive tracers. The oxygen uptake curve was initially approximately linear but became exponential below -100 PM oxygen. The half-removal time of oxygen below 100 PM corresponds to a boundary layer resistance similar to that obtained with the radiotracers. The nearly constant rate of decrease of oxygen during the initial phase of the incubations suggests that incubation techniques can be used to obtain an approximate measure of the oxygen uptake rate of sediments as long as the concentration remains above the transition where the curve changes from approximately linear to exponential. This procedure, however, underestimates the oxygen uptake rate by 28-34% compared to model results. Model calculations also suggest that oxygen uptake rates can differ substantially between chamber and outside sediments, especially when hydrodynamic conditions influencing the apparent boundary layer resistance are different within and outside chambers.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Oxygen uptake kinetics in the benthic boundary layer

Hall

Anderson

Loeff

et al. 1989

Limnology & Oceanography

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135

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“…Reduced oxygen levels have been shown to cause lethal and sublethal effects in various organisms, especially fish (Alabaster and Lloyd 1982). Moreover, oxygen controls the cycling of many elements in aquatic systems, such as the degradation of organic matter in sediment (Holmer 1999), the accumulation of ammonia in lake hypolimnion (Beutel 2001), and the release and uptake of cobalt, manganese, iron and phosphate (Sundby et al 1986;Torres et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Analyzing sediment dissolved oxygen based on microprofile modeling

Wang

Shan

Zhang

et al. 2014

Environ Sci Pollut Res

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Sediment plays a key role in controlling the oxygen demand of aquatic systems. The reaction rate, penetration depth, and flux across the sediment-water interface (SWI) are important factors in sediment oxygen consumption. However, there were few methods to collect these data until recently. In this study, methods were developed to simulate the oxygen microprofile and calculate the sediment oxygen consumption rate, oxygen penetration depth, and oxygen flux across the SWI. We constructed a sediment oxygen measuring system using an oxygen microelectrode and a control device. The simulation equations were derived from both zero and first-order kinetic models, while the penetration depth and the oxygen flux were calculated from the simulation results. The method was tested on four prepared sediment samples. Decreases in dissolved oxygen in surface sediment were clearly detected by the microelectrode. The modeled data were a good fit for the observed data (R 2 >0.95), and zero-order kinetics were more suitable than first-order kinetics. The values for penetration depth (1.3-3.9 mm) and oxygen fluxes (0.061-0.114 mg/cm 2 /day) calculated by our methods are comparable with those from other studies.

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“…Further, by determining the distributions of these substances within sediments, transport processes play a central role in setting the chemical environment there as well. For example, the supply of oxygen to sediments determines the redox potential and hence the chemical mobilities o:f such substances as Fe, Mn, and phosphate (Aller 1980~1;Balzer 1982;Sundby et al 1986). …”

mentioning

confidence: 99%

Wave enhancement of solute exchange within empty burrows

Webster

1992

Limnology & Oceanography

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Abstract-The physical process of supplying solutes such as oxygen to the walls of the burrows of macroinvertebrates within impermeable coastal sediments is examined. When waves are present, the resulting oscillatory water motions through empty burrows are shown to lead to solute dispersion rates many times larger than those that would be due to molecular diffusion acting alone. Consequently, waves can greatly enhance the rate at which solute is supplied to the burrow walls and so increase the overall solute utilization rate by the sediment. Wave enhancement of solute flows into a burrow is shown to depend on several parameters including burrow diameter, burrow length, wave amplitude, wave period, water depth, and the biochemical activi ly of the burrow walls. Solute flows are predicted to be largest for large wave amplitudes, shallow water depths, large burrow diameters, high solute utilization rates, and wave periods between 10 and 20 s.

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The effect of oxygen on release and uptake of cobalt, manganese, iron and phosphate at the sediment-water interface

Cited by 282 publications

References 20 publications

Oxygen uptake kinetics in the benthic boundary layer

Oxygen uptake kinetics in the benthic boundary layer

Analyzing sediment dissolved oxygen based on microprofile modeling

Wave enhancement of solute exchange within empty burrows

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