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1.
David Nicholas Barton Ståle Navrud Heid Bjørkeslett Ingrid Lilleby 《Journal of Soils and Sediments》2010,10(2):186-201
Purpose
As input to a cost-benefit analysis of large-scale remediation measures of contaminated sediments in the Grenland fjords in Norway, we conducted a contingent valuation (CV) survey of a representative sample of households from municipalities adjacent to these fjords. 相似文献2.
Careghini Alessandro Dastoli Sara Ferrari Giorgio Saponaro Sabrina Bonomo Luca De Propris Luciano Gabellini Massimo 《Journal of Soils and Sediments》2010,10(8):1646-1656
Purpose
Millions of cubic meters of sediments are dredged every year in the world. About 10–20% on weight 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 mercury-contaminated sediments. The treatment is based on a cement-based 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. 相似文献3.
Ana F. Pereira Miranda José M. L. Rodrigues Carlos Barata Carmen Riva Dayanthi Nugegoda Amadeu M. V. M. Soares 《Journal of Soils and Sediments》2011,11(2):373-381
Purpose
This paper evaluates the feasibility of using the buffering capacity of natural soil for the remediation of dredged material before being disposed in soil landfills. To achieve that, an Integrated Soil Microcosms (ISM) system was designed to produce elutriates and leachates from the sediment/soil percentage mixtures. Furthermore, to investigate the biological effects of the contaminated sediments, the toxicity behavior of leachates and elutriates was assessed and compared by performing acute (48 h) toxicity assays with the cladoceran Daphnia magna as test organism. 相似文献4.
Purpose
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous and persistent contaminants in aquatic bed sediments. A better understanding of their in-bed fate and transport is therefore key in minimising the risk to the environment over time through various remediation and monitoring strategies. Since ecological effects and risks are related to contaminant concentrations, this study developed CoReTranS, a predictive model that simulates one-dimensional organic contaminant reaction and transport in bed sediments.Materials and methods
CoReTranS was benchmarked against analytical solutions of simplified reactive transport models and validated using a published study of marsh sediments contaminated with petroleum-derived hydrocarbons from Wild Harbour, West Falmouth, MA, USA.Results and discussion
The CoReTranS model effectively predicted the vertical distribution of PAHs in the Wild Harbour sediments as confirmed by the modelling results from the published study. The CoReTranS model was also used to interpret results from a published study of PAH-contaminated fjord sediments from Kitimat Arm in British Columbia, Canada. Specific insights into the post-depositional fate and transport of selected PAHs in the Kitimat fjord sediments were obtained by comparing the measured concentration-depth profiles with the numerical results from the CoReTranS model. Key parameters such as effective diffusivity of contaminants and burial velocities of sediment particles were shown to possibly account for the predicted concentrations-depth profiles in the Kitimat fjord sediments.Conclusions
As demonstrated, CoReTranS can simulate reactive transport models in order to predict PAH concentration profiles in porewater under site-specific conditions. The information derived from the use of the CoReTranS model highlighted practical application of such information by engineers to site-specific risk assessment and remediation. 相似文献5.
Successes and limitations of phytotechnologies at field scale: outcomes,assessment and outlook from COST Action 859 总被引：1，自引：0，他引：1
Michel Mench Nick Lepp Valérie Bert Jean-Paul Schwitzguébel Stanislaw W. Gawronski Peter Schröder Jaco Vangronsveld 《Journal of Soils and Sediments》2010,10(6):1039-1070
Purpose
Many agricultural and brownfield soils are polluted and more have become marginalised due to the introduction of new, risk-based legislation. The European Environment Agency estimates that there are at least 250,000 polluted sites in the member states that require urgent remedial action. There is also significant volumes of wastewaters and dredged polluted sediments. Phytotechnologies potentially offer a cost-effective in situ alternative to conventional technologies for remediation of low to medium-contaminated matrices, e.g. soils, sediments, tailings, solid wastes and waters. For further development, social and commercial acceptance, there is a clear requirement for up-to-date information on successes and failures of these technologies based on evidence from the field. This review reports the outcomes from several integrated experimental attempts to address this at both field and market level in the 29 countries participating in COST Action 859. 相似文献6.
Amy Marie Patrin Oen Magnus Sparrevik David N. Barton Udaya Sekhar Nagothu Gerald Jan Ellen Gijs D. Breedveld Jens Skei Adriaan Slob 《Journal of Soils and Sediments》2010,10(2):202-208
Introduction
Management options for large-scale contaminated sediment remediation projects can be challenging with regard to competing stakeholder interests. This has become apparent during the Oslofjord sediment remediation project (2005–2009) which caused considerable public discussion.Background
To learn from this project, the ‘Sediment and society’ project was initiated to develop a collaborative approach that will incorporate local and scientific knowledge in order to achieve mutual gains, win-win outcomes for the stakeholders, in the management of contaminated marine sediments.Method development
The project focuses on two Norwegian harbours: Oslo Harbour and Bergen Harbour. The Oslo Harbour case has been analysed ex-post, using elements of risk governance: participation, communication, information/knowledge and risk perception. The Bergen Harbour case is focused on the establishment of a citizens' jury as well as a stakeholder panel in Bergen Harbour.Preliminary results and observations
Thus far, the results suggest three important commonalities or challenges for stakeholder involvement: (1) how to include people who have important management information and local knowledge, but not much influence in the decision-making process; (2) how to secure resources to ensure participation and (3) how to engage and motivate stakeholders to participate early in the sediment remediation planning process. 相似文献7.
Phytoremediation for soils contaminated by phenanthrene and pyrene with multiple plant species 总被引：1，自引：0，他引：1
Purpose
The remediation of soil polluted by polycyclic aromatic hydrocarbons (PAHs) is of great importance due to the persistence and carcinogenic properties of PAHs. Phytoremediation has been regarded as a promising alternative among suggested approaches. For the establishment of highly effective remediation method and better understanding of the remediation mechanisms by plants, the potentials of three plant species and their planting patterns on the remediation efficacy were studied by pot experiments. 相似文献8.
Purpose
Contaminated land is a major problem. The remediation cost of brownfields in Europe and the USA exceeds 550 billion €; however, rehabilitation is on a slow pace. It is estimated that the money spent so far correspond to just 5% of the required one to eliminate the problem. The high cost of remediation, along with the inefficiency of the available funds, gives rise to a need for a method to effectively allocate remediation funds. 相似文献9.
Stephen AC Marklevitz Elizabete Almeida Joanna Flemming Jocelyne Hellou 《Journal of Soils and Sediments》2008,8(2):92-97
Background, Aims and Scope
Our study determined if and when an avoidance or attraction behavioural response would be displayed by Ilyanassa obsoleta when presented with a choice between harbour and reference sediments. Our goal was to develop a non-lethal approach that could be used in future assessments of the environmental quality of field sediments. 相似文献10.
Phytoremediation efficiency of a PAH-contaminated industrial soil using ryegrass,white clover,and celery as mono- and mixed cultures 总被引：1，自引：0，他引：1
Purpose
Phytoremediation has been recognized as a promising technology for the remediation of polycyclic aromatic hydrocarbon (PAH)-contaminated soils. However, little is known about how plant species and cropping patterns affect the process of phytoremediation removing PAHs. Therefore, the aim of this study was to investigate further the effects of monocultures or mixed cultures of different plant species on PAH phytoremediation. 相似文献11.
Hyun-Suk Jung Seong-Taek Yun Byoung-Young Choi Hyang-Mi Kim Myungchae Jung Soon-Oh Kim Kyoung-Ho Kim 《Journal of Soils and Sediments》2010,10(6):1142-1158
Purpose
A number of publications have raised trace metal contamination of soils and sediments within and around shooting ranges used for sport or military training. To our knowledge, however, there is no publication on the contamination of sediments derived from military shooting ranges in a marine environment. Therefore, this work was purposed to assess the dispersion and fractionation of ammunition- and bomb-derived trace metals in intertidal sediment. 相似文献12.
Binoy Sarkar Ravi Naidu Mohammad Mahmudur Rahman Mallavarapu Megharaj Yunfei Xi 《Journal of Soils and Sediments》2012,12(5):704-712
Purpose
Naturally occurring layer silicate clay minerals can be value added by modifying their surface properties to enhance their efficacy in the remediation of environmental contaminants. Silicate clay minerals modified by the introduction of organic molecules into the mineral structure are known as organoclays and show much promise for environmental remediation applications. The present study assesses the extent of decrease in bioavailable and bioaccessible arsenic (As) via enhanced adsorption by soil treated with organoclays. 相似文献13.
Redell Chris J. Elmore Andrew Curtis Burken Joel G. Stringer Ryan D. 《Journal of Soils and Sediments》2011,11(6):1115-1124
Purpose
In situ contaminated sediment remediation through the addition of activated carbon has been proven to be an effective remediation technique. An amendment delivery system was developed to accurately place and inject a powdered activated carbon slurry. The system was set up to deliver a series of discrete injections over a rectangular grid with the objective to deliver 3% carbon (C) by dry weight to an inundated saturated sediment at a maximum sediment depth of 30 cm. 相似文献14.
Mingming Sun Dengqiang Fu Ying Teng Yuanyuan Shen Yongming Luo Zhengao Li Peter Christie 《Journal of Soils and Sediments》2011,11(6):980-989
Purpose
A 7-month field experiment was conducted to investigate the polycyclic aromatic hydrocarbon (PAH) remediation potential of two plant species and changes in counts of soil PAH-degrading bacteria and microbial activity. 相似文献15.
Mari Luz García-Lorenzo María José Martínez-Sánchez Carmen Pérez-Sirvent 《Journal of Soils and Sediments》2014,14(10):1753-1765
Purpose
The objective of this work was to evaluate the effectiveness of a plant bioassay (Phytotoxkit®) for screening ecotoxicological risks in sediments affected by mining activities.Materials and methods
A total of 42 sediment samples affected by mining activities were studied, including 39 sediment samples from the Sierra Minera, Spain, an area affected by old extraction procedures, and three sediments from an area affected by opencast mining. These three samples were then mixed with limestone filler at 10, 20 and 30 %, providing nine stabilised samples. The total and soluble metal(loid) content (As, Cd, Cu, Fe, Pb and Zn) was determined in all samples, and the Phytotoxkit® bioassay was applied to determine the ecotoxicological effect of this procedure.Results and discussion
The stabilised material had a neutral pH and low soluble metal(loid) concentration, similar to that of samples in which a natural attenuation process had taken place because of mixing with surrounding carbonate-rich materials. An ecotoxicological survey identified the low toxicity levels of the stabilised samples.Conclusions
The applied bioassay is a good tool for screening metal(loid) contamination in areas affected by mining activities, since it provides information on both natural and simulated attenuation processes. The mixing of sediments with limestone filler could be applied to the remediation of zones affected by mining activities, because the toxicological effect on the tested organisms in the stabilised sediments was reduced significantly and the metal(loid) content was diminished. 相似文献16.
Lidong Huang Shaoting Du Lin Fan Xianyong Lin Hailong Wang Yongsong Zhang 《Journal of Soils and Sediments》2011,11(1):185-193
Purpose
The phosphorus (P) level in sediments is one of the major indicators of the eutrophication of lakes. Little information is available on the effect of microbial activity on P adsorption in shallow lake sediments. In this study, we evaluated the effect of microbial activity on the adsorption of P to sediments in a shallow lake. 相似文献17.
Fengchang Wu Libin Xu Yongge Sun Haiqing Liao Xiaoli Zhao Jianyang Guo 《Journal of Soils and Sediments》2012,12(5):774-783
Purpose
Previous studies have shown a positive correlation between concentrations of polycyclic aromatic hydrocarbons (PAHs) and total organic carbon (TOC) in lake sediments. However, with respect to the complex organic matter in recent sediments, it is still unclear which part of TOC plays a key role in controlling PAHs distributions in natural sediments. The aim of this study was to examine the relationships between PAHs and TOC components of different origins in lake sediments. 相似文献18.
Development of sediment quality criteria in Norway 总被引：1，自引：0，他引：1
Torgeir Bakke Torsten Källqvist Anders Ruus Gijs D. Breedveld Ketil Hylland 《Journal of Soils and Sediments》2010,10(2):172-178
Introduction
A Norwegian system for classification of environmental quality of contaminated marine sediments has been in force since 1997 and was revised in 2007. 相似文献19.
Dejan Krcmar Milena Dalmacija Bozo Dalmacija Miljana Prica Jelena Trickovic Elvira Karlovic 《Journal of Soils and Sediments》2013,13(7):1318-1326
Purpose
The objective of this research was to apply the same immobilization (stabilization/solidification) clay-based treatments to sediment contaminated with different metals (Pb, Cd, Ni, Zn, Cu, Cr) with different distributions and availabilities in sediment. We also examined the possibility of using clay as an immobilization agent without the application of thermal treatment, in order to reduce the economic cost of this expensive remediation procedure.Materials and methods
Clay from a canal in Vojvodina, Republic of Serbia, was used as the immobilization agent in a stabilization/solidification treatment to remediate metal-contaminated sediment. Semi-dynamic and toxicity characteristic leaching tests were conducted to assess the effectiveness of the nonthermal and thermal immobilization treatments with clay, and the long-term leaching behavior of these metals was determined using the following parameters: cumulative percentage of metals leached; diffusion coefficients; leachability indices; and toxicity characteristic leaching test concentration.Results and discussion
Based on these parameters, both clay-based treatments were effective in immobilizing metals in the contaminated sediment. Results suggest that both heating temperature and clay proportion in the sediment–clay mixture impact the degree of metal immobilization.Conclusions
Clay-based products are potentially good immobilization materials for metal-contaminated sediments, with the distribution of metals in the original sediment not influencing the efficacy of the treatments. Even without the thermal treatment, the metals were effectively immobilized. The leaching of metals was largely inside the regulatory limits and the treated samples can be regarded as nonhazardous materials. This justifies the choice of not applying the more expensive thermal treatment during remediation, especially when treating sediments containing a mixture of pollutants. 相似文献20.
João Batista Rossetto Pellegrini Danilo Rheinheimer dos Santos Celso Santos Gonçalves André Carlos Cruz Copetti Edson Campanhola Bortoluzzi Daniel Tessier 《Journal of Soils and Sediments》2010,10(3):451-460