Ripening of clayey dredged sediments during temporary upland disposal a bioremediation technique

Vermeulen, J.; Grotenhuis, J.T.C.; Joziasse, J.; Rulkens, W.H.

doi:10.1007/bf02989469

Cited by 41 publications

(47 citation statements)

References 56 publications

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“…Therefore, storage and natural attenuation (naturally occurring biodegradation) of these halogenated compounds in anaerobic sediments can reduce their bioavailability and concentration, respectively. Many non-halogenated hydrophobic organic pollutants, like poly aromatic hydrocarbons, petroleum hydrocarbons and natural hormones are less or nonbiodegradable under anoxic conditions (de Mes et al 2005;Vermeulen et al 2003). Storage of these non-halogenated organic compounds in anaerobic sediments slows down or even stops their biodegradation, thus creating a long-lasting potential source of pollution for the aquatic ecosystem in the future.…”

Section: Introductionmentioning

confidence: 99%

Nonylphenol mass transfer from field-aged sediments and subsequent biodegradation in reactors mimicking different river conditions

et al. 2009

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Purpose Sediments can function as secondary source for water pollution of aerobically biodegradable nonhalogenated organic compounds, which are persistent in anaerobic sediments. The mass transfer of compounds from sediment to bulk water depends on hydraulic conditions. In this study, desorption, mass transfer and biodegradation are investigated under settled and resuspended sediment conditions for branched nonylphenol (NP), which was used as model compound for aerobically biodegradable and anaerobic persistent compounds. Materials and methods Continuous flow through reactor experiments were performed in duplicate with aged NP polluted sediment under sterile and non-sterile conditions to investigate the mass transfer and combined mass transfer and biodegradation. Results and discussion The mass transfer of NP from the sediment bed to the bulk water decreased from 5.1± 0.6 μg d -1 to a stable value of 0.3±0.02 μg d -1 . The desorbed NP in the non-sterile reactors was biodegraded in the first 20 days of the experiment. At the end of the settled sediment conditions, the biodegradation became very limited, and the mass transfer was comparable to the mass transfer under sterile conditions. Upon resuspension, the NP concentration in the bulk water increased instantaneously in all reactors with a factor of 100. This immediate, increased mass transfer of NP from the sediment was larger than the amount that can be biodegraded under optimal conditions. Under non-sterile conditions, a second increase in the mass transfer was observed. However, the amount of desorbing NP during this second increase in mass transfer can be biodegraded under optimal environmental conditions. Conclusions NP desorbs continuously at low concentrations from the sediment bed into the bulk water, which can almost be completely biodegraded. Resuspension of NP-polluted sediment initially led to an increase in the desorbing NP concentrations and can be followed by a subsequent reduction of the concentrations due to biodegradation under environmental conditions where biodegradation of NP can occur.

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Section: Introductionmentioning

confidence: 99%

Nonylphenol mass transfer from field-aged sediments and subsequent biodegradation in reactors mimicking different river conditions

et al. 2009

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“…Other authors found that decomposition and humification of the organic matter result in the degradation of the soil structure, a reduction in the soil capacity to store, retain and transmit water, and a higher propensity to shrink with increasing water potentials . Ripening of dredged sediments results in the increase of the water potential (Vermeulen 2007), and this can be related to the increase of the subsidence rate with time. In addition, subsidence rates are higher in the warmer months of spring and summer than during the cooler months of autumn and winter.…”

Section: Discussionmentioning

confidence: 99%

“…The chemical ripening refers to the oxidation combined with chemical changes that occur due to the improved aeration. Biological ripening refers to the activity of soil fauna and flora (Vermeulen 2007). Dewatering and the overall ripening process are accelerated by crack development (Vermeulen et al 2003) and evapotranspiration caused by plants (Oliveira et al 2018, In Press).…”

Section: Introductionmentioning

confidence: 99%

Subsidence of organic dredged sediments in an upland deposit in Wormer- en Jisperveld: North Holland, the Netherlands

et al. 2018

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Land subsidence in low-lying peatlands can be caused by shrinkage and organic matter oxidation. When these areas have networks of ditches and canals for drainage purposes, the sediments that accumulate in the waterways can be used to reverse the process of land subsidence. The objective of this study is to understand how dredged sediments can be used to reverse the process of land subsidence by analysing the contribution of shrinkage and organic matter mineralization to the subsidence observed in an upland deposit. A deposit of dredged sediments in the Wormer-en Jisperveld-North Holland, the Netherlands-was characterized during 17 months in terms of subsidence of the sediments, subsidence of the soil underlying the deposit, geotechnical water content, organic matter content, type of organic matter and nutrients. The deposit was filled to a height of 195 cm, and after 17 months, the subsidence of the sediments was 88 cm. In addition, a subsidence of 19.5 cm of the underlying soil was observed. Subsidence could be attributed to shrinkage since no significant changes in the organic matter content and total organic carbon were observed. The type of organic matter changed in the direction of humification until winter 2014, stabilized from winter 2014 to spring 2015 and changed in the direction of mineralization after the spring of 2015. Subsidence of dredged sediments in upland deposits is caused by shrinkage during the first 17 months. The solution of spreading thinner layers of sediments over the land to decrease the subsidence rates should be explored since the pressure of the deposit on the underlying soil caused an extra subsidence of 19.5 cm.

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“…The microbiological activity in this layer, responsible for aerobic biodegradation of the pollutants, is stimulated by regular ploughing of the layer, in order to maintain an adequate aeration, and by the addition of nutrients (Vermeulen et al 2003a). …”

Section: Landfarmingmentioning

confidence: 99%

“…Landfarming of this type of sediment is aimed at both dewatering and ripening of the sediment and aerobic biodegradation of the organic pollutants. Ripening is a natural process in which the sediment is slowly physically/chemically transformed in soil (Vermeulen et al 2003b). …”

Section: Landfarmingmentioning

confidence: 99%

Introduction to the Treatment of Polluted Sediments

Rulkens

2005

Rev Environ Sci Biotechnol

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Ripening of clayey dredged sediments during temporary upland disposal a bioremediation technique

Cited by 41 publications

References 56 publications

Nonylphenol mass transfer from field-aged sediments and subsequent biodegradation in reactors mimicking different river conditions

Nonylphenol mass transfer from field-aged sediments and subsequent biodegradation in reactors mimicking different river conditions

Subsidence of organic dredged sediments in an upland deposit in Wormer- en Jisperveld: North Holland, the Netherlands

Introduction to the Treatment of Polluted Sediments

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