Sediment Management of Nations in Europe

Palumbo, Leonardo

doi:10.1016/s1872-1990(07)80014-6

Cited by 6 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mercury and high molecular weight petroleum hydrocarbon concentrations exceed the Italian regulatory limits. Compared with the limit values used in Europe (France, Germany, The Netherlands) (Palumbo 2007) and the NOOA screening values used in the USA (Buchman 1999), the total PCB concentration is quite high. According to Nota classification (Nota 1958), the sediments are sandy pelite, with more than 50% on dry weight basis of silt.…”

Section: Sedimentsmentioning

confidence: 77%

“…Millions of cubic meters are dredged every year for the maintenance of canals and harbors: 25 to 30 million m 3 in The Netherlands, approximately 46 million m 3 in Germany, over 50 million m 3 in France, 200 to 300 million m 3 in the USA. In Italy, 6 million m 3 of sediments per year were dredged in the past, but this quantity is expected to increase considerably due to the water depth necessary in harbors to face the expanding naval trades (Palumbo 2007;US EPA 2005). About 10-20% on weight basis of this dredged material is contaminated (Palumbo 2007).…”

Section: Introductionmentioning

confidence: 99%

“…In Italy, 6 million m 3 of sediments per year were dredged in the past, but this quantity is expected to increase considerably due to the water depth necessary in harbors to face the expanding naval trades (Palumbo 2007;US EPA 2005). About 10-20% on weight basis of this dredged material is contaminated (Palumbo 2007). Sediments are also dredged for clean-up purposes whenever natural recovery, capping or in situ remediation technologies are not feasible or accepted by the local environmental protection agencies.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sequential solidification/stabilization and thermal process under vacuum for the treatment of mercury in sediments

Careghini

Dastoli

Ferrari³

et al. 2010

J Soils Sediments

View full text Add to dashboard Cite

Purpose Millions of cubic meters of sediments are dredged every year in the world. About 10–20%onweight basis of this material is contaminated by organic and/or inorganic pollutants. This work presents the laboratory tests performed to study a system for the remediation and reuse of mercurycontaminated sediments. The treatment is based on a cementbased granulation step (solidification/stabilization (S/S)), followed by a thermal process under vacuum during which volatile and semi-volatile compounds are removed. The experiments focused on: (1) cement hydration reactions; (2) pollutant removal efficiencies; and (3) leaching behavior, in relation to temperature and duration of the thermal process. Mercury speciation was also investigated.\ud Materials and methods Dredged at the marine harbor of Augusta (SR, Italy), the sediments used in the experiments were highly polluted by mercury (200 mgkg−1dry weight (d.w.)). The recipe applied in the S/S step was based on the particle size distribution of the resulting granulates. An indirectly–heated batch system operated under vacuum (2.6±1.3 103 Pa) at: (1) 150°C for 16 h; (2) 200°C for 6 h; (3) 250°C for 4 h; or (4) 280°C for 4 h. X-ray diffraction spectroscopy and scanning electron microscopy were used to study cement hydration reactions. Total mercury concentration and leaching tests were carried out to assess the effects of the different treatment conditions.\ud Results and discussion The best results were obtained by treating the granulate at 250°C for 4 h. Under these conditions, mercury final concentration was 49 mgkg−1 d.w., resulting in a removal efficiency of 63% referred to the granular material before thermal treatment, and 75% referred to the sediment. The concentrations measured in the leachate were compatible with the Italian requirements for reuse, with some exceptions (pH, chlorides, nickel, copper, and COD) ascribed to the specific nature of the sediment. Mercury speciation analyses pointed out changes after both the treatment steps.\ud Conclusions The final granulates accomplish most Italian requirements for reuse, even though an improvement in the S/S step or an additional washing step would help for the exceptions mentioned above. Different reuse options in civil engineering (e.g., filling material, road material, concrete aggregates, etc.) will be evaluated also taking into consideration the mechanical properties. Further studies will be carried out to assess the long-term leaching behavior and leaching under different pH conditions

show abstract

Section: Sedimentsmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sequential solidification/stabilization and thermal process under vacuum for the treatment of mercury in sediments

Careghini

Dastoli

Ferrari³

et al. 2010

J Soils Sediments

View full text Add to dashboard Cite

show abstract

“…The accumulated sediments reduce the admitted draft of the navigation channel on the one hand and generate erosional effects on the leeside coasts on the other. As a consequence, harbours frequently require ordinary maintenance dredging to remove the accumulated sediments [1]. Dredging is a consolidated and proven technology, but involves considerable drawbacks [2][3][4][5], since it has a notable environmental impact on the marine environment, contributes to the mobility and diffusion of contaminants and pollutants already present in the settled sediments, and obstructs navigation during its operational phases.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management

Pellegrini

Aghakhani

Gaeta

et al. 2021

JMSE

View full text Add to dashboard Cite

The need to remove deposited material from water basins is common and has been shared by many ports and channels since the earliest settlements along coasts and rivers. Dredging, the most widely used method to remove sediment deposits, is a reliable and wide-spread technology. Nevertheless, dredging is only able to restore the desired water depth but without any kind of impact on the causes of sedimentation and so it cannot guarantee navigability over time. Moreover, dredging operations have relevant environmental and economic issues. Therefore, there is a growing market demand for alternatives to sustainable technologies to dredging able to preserve navigability. This paper aims to evaluate the effectiveness of guaranteeing a minimum water depth over time at the port entrance at Marina of Cervia (Italy), wherein the first industrial scale ejector demo plant has been installed and operated from June 2019. The demo plant was designed to continuously remove the sediment that naturally settles in a certain area through the operation of the ejectors, which are submersible jet pumps. This paper focuses on a three-year analysis of bathymetries realized at the port inlet before and after ejector demo plant installation and correlates the bathymetric data with metocean data (waves and sea water level) collected in the same period. In particular, this paper analyses the relation between sea depth and sediment volume variation at the port inlet with ejector demo plant operation regimes. Results show that in the period from January to April 2020, which was also the period of full load operation of the demo plant, the water depth in the area of influence of the ejectors increased by 0.72 mm/day, while in the whole port inlet area a decrease of 0.95 mm/day was observed. Furthermore, in the same period of operation, the ejector demo plant’s impact on volume variation was estimated in a range of 245–750 m3.

show abstract

Landfarming efficiently recovers marine dredged sediment for pomegranate cultivation

et al. 2023

View full text Add to dashboard Cite

Sediment Management of Nations in Europe

Cited by 6 publications

References 3 publications

Sequential solidification/stabilization and thermal process under vacuum for the treatment of mercury in sediments

Sequential solidification/stabilization and thermal process under vacuum for the treatment of mercury in sediments

Effectiveness Assessment of an Innovative Ejector Plant for Port Sediment Management

Landfarming efficiently recovers marine dredged sediment for pomegranate cultivation

Contact Info

Product

Resources

About