A technical assessment of topsoil production from dredged material

Sheehan, Colm; Harrington, Joseph; Murphy, Jerry D.

doi:10.1016/j.resconrec.2010.05.012

Cited by 29 publications

(15 citation statements)

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“…Dredge materials from the mid‐Atlantic United States have been successfully combined with other residuals to produce manufactured soils for wider applications for brownfield redevelopment, gardening, and landscaping applications (Lee, 2001). Similar findings and potential applications have been reported for Ireland (Sheehan and Harrington, 2012; Sheehan et al, 2010). However, adverse effects of metal sulfide oxidation from upland placed dredge materials in Belgium have also been noted by Cappuyns et al (2006), along with similar reports of acid sulfate soil formation in a range of dredge spoil materials placed in the mid‐Atlantic United States (Fanning and Fanning, 1989; Demas et al, 2004).…”

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confidence: 88%

Beneficial Use of Dredge Materials for Soil Reconstruction and Development of Dredge Screening Protocols

et al. 2016

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Upland placement of dredge sediments has the potential to provide beneficial reuse of suitable sediments for agricultural uses or urban soil reconstruction. However, the use of many dredge materials is limited by contaminants, and most established screening protocols focus on limiting major contaminants such as heavy metals and polycyclic aromatic hydrocarbons and generally ignore fundamental agronomic parameters. Since 2001, we have placed over 450,000 m of Potomac River fresh water dredge materials and 250,000 m of saline materials from various locations into monitored confined upland facilities in Charles City, VA, and documented their conversion to agricultural uses. Groundwater and soil quality monitoring has indicated no adverse effects from material placement and outstanding agricultural productivity for the freshwater materials. Once placed, saline materials rapidly leach and ripen with quick declines in pH, electrical conductivity, and sodicity, but potentials for local groundwater impacts must be considered. Our experience to date indicates that the most important primary screening parameter is acid-base accounting (potential acidity or lime demand), which should become a mandatory analytical requirement. Our second level of acceptance screening is based on a combination of federal and state residual waste and soil screening standards and basic agronomic principles. High silt+clay and total organic C may also limit rapid use of many dredge materials due to extended dewatering times and physical limitations. This dredge material screening system separates potential upland placement candidates into three soil quality management categories (unsuitable, suitable, and clean fill) with differing monitoring requirements. Similar use of these sediments in urban soil reconstruction is also recommended.

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confidence: 88%

Beneficial Use of Dredge Materials for Soil Reconstruction and Development of Dredge Screening Protocols

et al. 2016

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“…Cette phase permet de connaitre les caractéristiques pour lesquelles les sédiments seraient éligibles aux voies de valorisation. La plupart des travaux portant sur la valorisation des sédiments ne concerne qu'une seule filière (AOUAD et al, 2012 ;LIMEIRA et al, 2011 ;DUBOIS et al, 2009 ;MEZENCEVOVA et al, 2012 ;SHEEHAN et al, 2010) Dans le cadre des présents travaux, ces filières ont été simultanément mises en oeuvre à l'échelle du laboratoire pour quatre sédiments fins provenant de quatre retenues hydroélectriques, représentatifs de différentes typologies. Tout d'abord une caractérisation minérale, géotechnique et agronomique a permis de discuter de l'adéquation sédiments -filières au regard des critères d'entrée dans les voies de valorisation.…”

Section: Démarche Globaleunclassified

Caractérisation des sédiments fins des retenues hydroélectriques en vue d’une pré-orientation vers des filières de valorisation matière

Anger

2015

Edition 3, Ferrare, Italie

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Résumé :Electricité de France (EDF) exploite une large part des installations de l'ensemble du parc hydraulique français. A ce titre elle doit gérer le transit sédimentaire sur ses installations sachant qu'une partie des sédiments peut y être retenue. La question de la gestion à terre de ces sédiments est parfois abordée, le manque de retour d'expériences positives sur les voies de valorisation à terre des sédiments fins de dragage marins et fluviaux révèle l'absence de solutions durables. EDF a donc souhaité travailler à l'élaboration d'un outil de pré-orientation à partir d'une proposition de caractérisation en accord avec les spécifications techniques des filières potentielles, à savoir, en cimenterie, en intégration dans le béton, en matériau routier et assimilé, en matériau céramique et en valorisation agronomique. L'outil proposé est original et apporte aujourd'hui à l'exploitant des installations hydrauliques une première détermination des filières qui doivent être étudiées pour une valorisation définitive.

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“…Previous studies have shown that multiple processes affect the ripening of dredged sediments and subsequent soil formation (Vermeulen 2007;Sheehan et al 2010;Lafrenz et al 2013). Some of the functional properties that play an important role in the nature of ripening and affect the properties of the soil are the type of organic matter (Akker et al 2008;Berglund and Berglund 2011;Schmidt et al 2011;Urbanek et al 2011;Guenet et al 2012;Aich et al 2013), pH and nutrient content (Ayuke et al 2011;Knicker 2011;Leue and Lang 2012), water retention capacity (Berglund and Berglund 2011;Bolte et al 2011;Querner et al 2012), dry bulk density (van Asselen 2011), aggregate stability (Amézketa 1999;Six et al 2004;Elmholt et al 2008;Munkholm 2011;Deviren Saygın et al 2012) and load-bearing capacity (Gui et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Functional properties of soils formed from biochemical ripening of dredged sediments—subsidence mitigation in delta areas

et al. 2016

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Purpose In delta areas, dense networks of canals have been developed through time and have to be periodically dredged. Lowering the groundwater level in delta areas deepens the aerobic zone, leading to the oxidation of organic matter and possibly to land subsidence. The use of the dredged sediments on land can be a solution to mitigate land subsidence in delta areas. Materials and methods Five types of dredged sediments with different organic matter content and particle size distribution were dewatered for 7 days and then submitted to biochemical ripening during 141 days on a laboratorial scale with constant temperature and relative humidity. The functional properties analysed were the type and content of organic matter, pH, total C, N, P and S, dry bulk density, water retention capacity, aggregate stability and load-bearing capacity. Results and discussion After biochemical ripening, there was no significant loss in the mass of organic matter but there was an increase in the fraction of stable organic compounds, observed by an increase in oxygen-bearing compounds and a decrease in hydrocarbons during biochemical ripening. The pH was not affected by biochemical ripening, and the total C, N, P and S concentrations are high and therefore the dredged sediments can improve the quality of the land. Most volume lost during dewatering and biochemical ripening can be attributed to the loss of water. The water retention capacity of the dredged sediments changed with biochemical ripening. The soils formed from biochemical ripening have very stable aggregates, and its load-bearing capacity is enough to sustain cattle and tractors. Conclusions Most volume lost during dewatering and biochemical ripening can be attributed to the loss of water and not organic matter. Therefore, the studied dredged sediments have potential to mitigate land subsidence in delta areas when spread on land.

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A technical assessment of topsoil production from dredged material

Cited by 29 publications

References 1 publication

Beneficial Use of Dredge Materials for Soil Reconstruction and Development of Dredge Screening Protocols

Beneficial Use of Dredge Materials for Soil Reconstruction and Development of Dredge Screening Protocols

Caractérisation des sédiments fins des retenues hydroélectriques en vue d’une pré-orientation vers des filières de valorisation matière

Functional properties of soils formed from biochemical ripening of dredged sediments—subsidence mitigation in delta areas

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