Release of heavy metals from sediment bed under wave-induced liquefaction

Sun, Zhenhong; Xu, Guowen; Hao, Ting; Huang, Zhe; Fang, Hongru; Wang, Gang

doi:10.1016/j.marpolbul.2015.06.015

Cited by 21 publications

(9 citation statements)

References 30 publications

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“…This agreed well with a previous study reported that the heavy metals concentrations in the overlying water and suspended sediments were negatively correlated [42]. The rapid decline in the dissolved Cu concentration at the initial period of this stage may be related to the adsorption process by the increased quality of suspended particles [34,43]. Moreover, as the change of hydrodynamic condition of the overlying water, namely from a static state to a disturbed state, the dissolved Cu above the sediment tank diffused into the surrounding water under wave disturbance.…”

Section: Dissolved Cu Concentration Variations In the Overlying Watersupporting

confidence: 92%

“…Afterwards, the dissolved Cu concentration then began to increase and reached its peak at approximately 30 min, which was corresponding to the sediment liquefaction process. The sediment and overlying water were intensively mixed during the liquefaction process [34,43], which facilitated the release of Cu from the sediment into the overlying water. The liquefaction interface gradually moved upwards under the subsequent wave actions.…”

Section: Dissolved Cu Concentration Variations In the Overlying Watermentioning

confidence: 99%

“…The sediment particles settled on the surface were resuspended as a result of the increased wave height. The strong disturbance in overlying water induced desorption of Cu that previously adsorbed on particles [34]. This led to an increase in the dissolved Cu in the overlying water.…”

Section: Dissolved Cu Concentration Variations In the Overlying Watermentioning

confidence: 99%

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Migration and Diffusion of Heavy Metal Cu from the Interior of Sediment during Wave-Induced Sediment Liquefaction Process

Lü

Zhang

Jia

et al. 2019

JMSE

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Sediments are an important sink for heavy metal pollutants on account of their strong adsorption capacity. Elevated content of Cu was observed in the Chengdao area of the Yellow River Delta, where the surface sediment is mainly silt and is prone to be liquefied under hydrodynamic forces. The vertical transport of fine particles, along with pore water seepage, during the liquefaction process could promote the migration and diffusion of Cu from the interior of sediment. The present study involved a series of wave flume experiments to simulate the migration and diffusion of Cu from the interior of sediment in the subaqueous Yellow River Delta area under wave actions. The results indicated that sediment liquefaction significantly promoted the release of Cu from internal sediment to overlying water. The variations of Cu concentrations in the overlying water were opposite to the suspended sediment concentrations (SSCs). The sediment liquefaction caused high initial rises of SSCs, but led to a rapid decline of dissolved Cu concentration at the initial period of sediment liquefaction due to the adsorption by fine particles. Afterwards, the SSCs slightly increased and then gradually decreased. Meanwhile, the dissolved Cu concentration generally kept increasing under combined effects of intensively mix of sediment and overlying water, pore water seepage, and desorption. The dissolved Cu concentration in the overlying water during sediment liquefaction phase was 1.5–2.2 times that during the consolidation phase. Sediment liquefaction also caused vertical diffusion of Cu in sediment and the diffusion depth was in accordance with the liquefaction depth. The results of the present study may provide reference for the environmental management in the study area.

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Section: Dissolved Cu Concentration Variations In the Overlying Watersupporting

confidence: 92%

Section: Dissolved Cu Concentration Variations In the Overlying Watermentioning

confidence: 99%

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Migration and Diffusion of Heavy Metal Cu from the Interior of Sediment during Wave-Induced Sediment Liquefaction Process

Lü

Zhang

Jia

et al. 2019

JMSE

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“…metal soluble phase, colloid phase and adsorbed phase like on particulate matter and sedimentary form (Huang et al, 2012). However, in an estuary in where freshwater and saline water meet each other, those metals change its behavior and many complex processes such as adsorption-desorption, photocatalytic reaction, absorption, chemical reaction, and deposition-redeposition are involving in the alteration of metals form (el-Nemr et al, 2006;El-Said et al, 2014;Sun et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Assessing Heavy Metals Contamination in Suspended Particulate Matter in Jakarta Bay, Indonesia

Budiyanto¹,

Lestari²

2019

BoMG

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Suspended Particulate Matter (SPM) is an important compartment within water column due to its capability in adsorbing pollutant like heavy metals. However, there was limited information regarding SPM and its heavy metals content in Jakarta Bay. Therefore, this study was proposed to understand the spatial distribution, source and to assess metal content in SPM in Jakarta Bay. The samples were collected from 24 stations in April 2011 and were then analyzed using acid digestion processes adopted from USEPA 3050b. The generated data were then modeled to determine the spatial distribution of metals in SPM. The result revealed that the concentration of Cd, Cu, Ni, Pb and Zn in SPM were as follow: 10-110; 21-472; 14-356; 7-107; 87-4255 mg.kg-1, respectively. Since Cd, Pb and Zn in SPM were majorly concentrated in the area closed to harboring activities, the activities was suspected in contributing of high input of those metals, meanwhile, Cu and Ni was mostly came from riverine runoff. The computation of Index of Geoaccumulation (Igeo) revealed that the major area in Jakarta Bay was unpolluted by Cu, Pb, Zn, and Ni in SPM however 96% of the selected area were strongly contaminated by Cd in SPM. Thus, this study emphasized that harbor area as a dominant source of metals in SPM in Jakarta Bay and required to be well managed.Keywords: Jakarta Bay, Suspended Particulate Matter, heavy metals, contamination.Materi Partikulat Tersuspensi (SPM) merupakan bagian penting dalam kolom air karena kemampuannya dalam menjerat polutan seperti logam berat. Akan tetapi, informasi mengenai SPM dan kandungan logam berat dalam SPM di Teluk Jakarta terbatas. Oleh karena itu, tujuan dari studi ini adalah untuk mengetahui distribusi spasial, dan sumber logam berat serta menilai kualitas lingkungan berdasar kandungan logam berat dalam SPM di Teluk Jakarta. Sampel SPM diambil dari 24 titik observasi pada bulan April 2011 kemudian dianalisis dengan proses digestif asam yang diadopsi dari USEPA 3050b. Data yang didapat kemudian dimodelkan untuk mengetahui distribusi spasial logam berat dalam SPM. Hasil analisis menunjukkan bahwa konsentrasi Cd, Cu, Ni, Pb dan Zn dalam SPM secara berurutan sebagai berikut: 10-110; 21-472; 14-356; 7-107; 87-4255 mg.kg-1. Cd, Pb dan Zn lebih ditengarai bersumber dari aktivitas pelabuhan karena konsentrasi Cd, Pb dan Zn di area tersebut tinggi sementara Cu dan Ni lebih banyak berasal dari limpasan sungai. Perhitungan Indeks Geoakumulasi (Igeo) menunjukkan bahwa sebagian besar area tidak tercemar oleh Cu, Pb, Zn dan Ni akan tetapi 96% area teramati tercemar Cd. Oleh karena itu, studi ini menyarankan untuk ditingkatkannya manajemen pembuangan limbah di pelabuhan sebagai sumber logam.Kata kunci: Teluk Jakarta, Materi Partikulat Tersuspensi, logam berat, pencemaran.

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“…Korber et al (2007), Morse et al (1997), and Sun et al (2015) suggest Mg/Ca ratios >3.5 represent modern freshwater. Higher atmospheric temperatures will produce higher Mg/Ca ratios from the aquatic chemical system, whereas lower atmospheric temperatures will produce lower Mg/Ca ratios from the same aquatic chemical system (Barker et al, 2005;Cleroux et al, 2008;Regenberg et al, 2009).…”

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confidence: 97%

Shallow Subsurface Evidence for Postglacial Holocene Lakes at Ivanpah Dry Lake: An Alternative Energy Development Site in the Central Mojave Desert, California, USA

Sims¹,

Spaulding

2017

JGG

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Dry lakes, or playas, in the American Southwest have become important locations for alternative energy solar electric generation systems. Many of these playas have not been investigated for past environmental conditions prior to their development, causing alterations to the shallow sediment profile and altering subsurface chemical and physical data important to recent geologic and hydrologic histories of these areas. Recent studies of these features commonly have focused on surficial data with little or no subsurface geologic data to delineate wet and dry cycles of playa lakes. Many of the playa margins are covered with a surficial layer of alluvial and/or aeolian sands varying in thickness, which could interfere with correct interpretations of data gathered only on the surface material on these lands. Over the past 13,000 years Ivanpah Dry Lake has had at least three episodes of lake highstands up to ~10m in response to climate changes, based on data in this study with the oldest episode dates to ~13,000 cal yrs BP. This study has a link to other sites as many other playas are slated for energy development and could endure subsurface data alteration during site reworking and occupation, resulting in a loss in their collective historical geologic and hydrologic records if more complete studies of important sites are not carried out before developments begin.

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Release of heavy metals from sediment bed under wave-induced liquefaction

Cited by 21 publications

References 30 publications

Migration and Diffusion of Heavy Metal Cu from the Interior of Sediment during Wave-Induced Sediment Liquefaction Process

Migration and Diffusion of Heavy Metal Cu from the Interior of Sediment during Wave-Induced Sediment Liquefaction Process

Assessing Heavy Metals Contamination in Suspended Particulate Matter in Jakarta Bay, Indonesia

Shallow Subsurface Evidence for Postglacial Holocene Lakes at Ivanpah Dry Lake: An Alternative Energy Development Site in the Central Mojave Desert, California, USA

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