Peer Reviewed: Chemical Dynamics of Sedimentary Acid Volatile Sulfide

Morse, John W.; Rickard, David

doi:10.1021/es040447y

Cited by 140 publications

(83 citation statements)

References 18 publications

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“…Since the AVS content in the YLZ sample was very low (0.38 μmol/g, Table 1), its F4 phase can be mainly ascribed to the organic binding forms, which may not be easily oxidized during the resuspension. This result is in accordance with the previous studies (Akcay et al, 2003;Morse and Rickard, 2004).…”

Section: Heavy Metal Fractions In Sedimentssupporting

confidence: 94%

Distribution of heavy metals in the water column, suspended particulate matters and the sediment under hydrodynamic conditions using an annular flume

Huang

Wang

2012

Journal of Environmental Sciences

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Section: Heavy Metal Fractions In Sedimentssupporting

confidence: 94%

Distribution of heavy metals in the water column, suspended particulate matters and the sediment under hydrodynamic conditions using an annular flume

Huang

Wang

2012

Journal of Environmental Sciences

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“…An increase of dissolved metals in the surface water (As, Cd, and Cu) was observed in the cores which had been subjected to aeration and resuspension. Cd and Cu are known to (co)precipitate with sulfides (Di Toro et al 1992;Morse and Rickard, 2004). Sulfides will be oxidized to sulfate under the aerobic conditions, and (co)precipitated Cd and Cu will be released and can diffuse to pore and surface water.…”

Section: Discussionmentioning

confidence: 99%

The effect of waste water treatment on river metal concentrations: removal or enrichment?

et al. 2010

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Purpose Discharge of untreated domestic and industrial waste in many European rivers resulted in low oxygen concentrations and contamination with trace metals, often concentrated in sediments. Under these anoxic conditions, the formation of insoluble metal sulfides is known to reduce metal availability. Nowadays, implementation of waste water treatment plants results in increasing surface water oxygen concentrations. Under these conditions, sediments can be turned from a trace metal sink into a trace metal source. Materials and methodsIn an ex situ experiment with metal contaminated sediment, we investigated the effect of surface water aeration on sediment metal sulfide (acid volatile sulfides (AVS)) concentrations and sediment metal release to the surface water. These results were compared with long-term field data, where surface water oxygen and metal concentrations, before and after the implementation of a waste water treatment plant, were compared.Results and discussion Aeration of surface water in the experimental setup resulted in a decrease of sediment AVS concentrations due to sulfide oxidation. Metals, known to precipitate with these sulfides, became more mobile and increasing dissolved metal (arsenic (As), cadmium (Cd), copper (Cu)) concentrations in the surface water were observed. Contrary to As, Cd, or Cu, manganese (Mn) surface water concentrations decreased in the aerated treatment. Mn ions will precipitate and accumulate in the sediment as Mn oxides under the oxic conditions. Field data, however, demonstrated a decrease of all total metal surface water concentrations with increasing oxygen concentrations following the implementation of the waste water treatment plant. Conclusions The gradual decrease in surface water metal concentrations in the river before the treatment started and the removal of metals in the waste water treatment process could not be countered by an increase in metal flux from the sediment as observed in the experiment.

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“…Sediments are considered to be the main sinks for organic and trace metal elements for the coastal environment (Burton et al 2005;Wang and Chapman 1999). Many of the discharged metallic pollutants have deposited in the sediments; however, when environmental conditions (pH, redox potential, and others) change, settled metals in sediments may break free to the water, making the sediments act as an internal source of trace metals (Morgan et al 2012;Morse and Rickard 2004;Van Den Berg et al 1999). Heavy metals are considered as one of the most serious contaminants Responsible editor: Céline Guéguen of the ecosystem due to their bioaccumulation, biomagnifications, and even increasing the exposure of human (Prica et al 2008;Yang et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Assessment of sediment quality based on acid-volatile sulfide and simultaneously extracted metals in heavily industrialized area of Asaluyeh, Persian Gulf: concentrations, spatial distributions, and sediment bioavailability/toxicity

Arfaeinia

Nabipour

Ostovar

et al. 2016

Environ Sci Pollut Res

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Sediment samples from the coastal area of Asaluyeh harbor were collected during autumn and spring 2015. The acidvolatile sulfide (AVS) and simultaneously extracted metals (SEMs) were measured to assess the sediment quality and potential ecological risks. The average concentrations (and relative standard deviation (RSD)) of AVS in the industrial sediments were 12.32 μmol/g (36.91) and 6.34 μmol/g (80.05) in autumn and spring, respectively, while in the urban area, these values were 0.44 μmol/g (123.50) and 0.31 μmol/g (160.0) in autumn and spring, respectively. The average concentrations of SEM (and RSD) in the industrial sediments were 15.02 μmol/g (14.38) and 12.34 μmol/g (20.65) in autumn and spring, respectively, while in the urban area, these values were 1.10 μmol/g (43.03) and 1.06 μmol/g (55.59) in autumn and spring, respectively. Zn was the predominant component (34.25-86.24 %) of SEM, while the corresponding value for Cd, much more toxic ingredient, was less than 1 %. Some of the coastal sediments in the harbor of Asaluyeh (20 and 47 % in autumn and spring, respectively) had expected adverse biological effects based on the suggested criterion by United States Environmental Protection Agency (USEPA), while most stations (80 and 53 % in autumn and spring, respectively) had uncertain adverse effects.

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Peer Reviewed: Chemical Dynamics of Sedimentary Acid Volatile Sulfide

Cited by 140 publications

References 18 publications

Distribution of heavy metals in the water column, suspended particulate matters and the sediment under hydrodynamic conditions using an annular flume

Distribution of heavy metals in the water column, suspended particulate matters and the sediment under hydrodynamic conditions using an annular flume

The effect of waste water treatment on river metal concentrations: removal or enrichment?

Assessment of sediment quality based on acid-volatile sulfide and simultaneously extracted metals in heavily industrialized area of Asaluyeh, Persian Gulf: concentrations, spatial distributions, and sediment bioavailability/toxicity

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