A review of approaches and techniques used in aquatic contaminated sediments: metal removal and stabilization by chemical and biotechnological processes

Akçıl, Ata; Erüst, Ceren; Ozdemiroglu, Sevda; Fonti, Viviana; Beolchini, Francesca

doi:10.1016/j.jclepro.2014.08.009

Cited by 363 publications

(121 citation statements)

References 123 publications

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“…More recently, Falciglia et al [65] reported that a 400-h EK treatment led to a limited Hg removal of ~71%, which did not match with the desired regulatory limit for Augusta bay. Literature has demonstrated that only conventional thermal treatments can be effective, but require high temperatures and fuel costs in the range of US$ 650 -1000 ton -1 [1,62]. On the other hand, recent literature [66] demonstrated that low energy costs in the 18 -27 € ton -1 range are required in MWH treatments of contaminated soils.…”

Section: Comparison To Other Clean-up Alternativesmentioning

confidence: 99%

“…Mercury (Hg)-contamination of marine sediments is a serious and global scale environmental problem, especially due to its high persistence and toxicity [1,2]. The largest industrial use of Hg during the 20 th century was the chlor-alkali process, which used electrolysis (Hg being the anode) for separating chlorine and sodium from brine [3].…”

Section: Introductionmentioning

confidence: 99%

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Remediation of Hg-contaminated marine sediments by simultaneous application of enhancing agents and microwave heating (MWH)

Falciglia

Malarbì

Maddalena

et al. 2017

Chemical Engineering Journal

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This version is available at https://strathprints.strath.ac.uk/60331/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. AbstractThe aim of this work was to investigate Hg removal ability of a novel microwave heating (MWH) treatment for marine sediment remediation enhanced by the application of several agents, biodegradable complexing agent (methylglycinediacetic acid, MGDA), surfactant (Tween ® 80), and citric acid. Main results revealed that MWH allowed a very rapid heating (~450 °C in 7 min) of the irradiated medium. However, without the addition of enhancing agents, a maximum Hg removal of ~72% can be achieved. The application of MGDA led to a higher contaminant removal of ~87% (residual concentration = 5.4 mg kg -1 ). For the treatment including the simultaneous addition of both chelating agent and surfactant, their synergetic action and stripping processes resulted in a very high Hg removal of ~99% for an irradiation time of 7 min, corresponding to a residual concentration of 0.56 mg kg -1 , which is lower than the Italian regulatory limit of 1 mg kg -1 . The use of citric acid resulted in a shortening of the removal kinetics, which allowed the successful application of a shorter remediation time of 5 min. The observed strong passive ability of sediments to convert a microwave irradiation energy into a rapid and large temperature increase undoubtedly represents a key factor in the whole remediation process, making the studied treatment an excellent choice. Kinetic data are suitable for a preliminarily assessment of the effectiveness of clean-up activities, and as basis for future scaling-up studies on MWH of Hgcontaminated sediments.

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Section: Comparison To Other Clean-up Alternativesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Remediation of Hg-contaminated marine sediments by simultaneous application of enhancing agents and microwave heating (MWH)

Falciglia

Malarbì

Maddalena

et al. 2017

Chemical Engineering Journal

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“…It is estimated that there are 100-200 million cubic meters dredged per year in Europe alone [51]. The main reasons for dredging include navigation, maintenance of operational shipping depth, flood control, construction and reclamation, and mining for infill materials.…”

Section: Dredged Sedimentsmentioning

confidence: 99%

“…In one study, 62% of the metals were leached in a 120-day percolation leaching test [55]. Akcil et al [51] summarize the multifarious approaches that have been applied to metal recovery from aquatic contaminated sediments.…”

Section: Dredged Sedimentsmentioning

confidence: 99%

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

Sapsford

Cleall

Harbottle

2016

J. Sustain. Metall.

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Wastes and the waste repositories in which they reside are becoming targets for resource recovery, both for legacy wastes and for future waste arisings as part of a desire to move toward a circular economy. There is an urgent requirement to explore concepts for practicable technologies that can be applied to these ends. This paper presents a synthesis of concepts concerning in situ technologies (developed from mining and contaminated land remediation industries) that have enormous potential for application to technospheric mining. Furthermore, potential target waste streams and their mineralogy and character are presented along with a discussion concerning lixiviant and metal capture systems that could be applied. Issues of preferential flow (critical to the success of in situ techniques) and how to control it with engineering measures are discussed in detail. It is clear that in situ recovery of metals from anthropogenic ores is a novel technology area that links new sustainable remediation approaches for contaminated materials and technospheric mining for closing material loops, and warrants the further research and development of technologies applicable to major waste streams.

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“…Vouillamoz and Milke, for example, have shown convincing evidence that rye grass is effective in removing mixed contaminants from soil (Vouillamoz and Mike, 2001). The most common contaminants found in mixed-contaminated soil (Cheng et al, 2008), such as co-contaminated river sediment are pyrene, phenanthrene, lead and zinc (Wang et al, 2014., Akcil et al, 2015;Nguyen et al, 2015). To date, studies on enhanced phytoremediation have not yet addressed the rhizosphere effect on mixed contaminants (Priha et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Phytoremediation on the Sediments Co-Contaminated by Heavy Metals and Organic Compounds and the Role of Microbes in the Remediation System

Jia¹

2017

Appl Ecol Env Res

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Jia et al.: Efficiency of phytoremediation on the sediments co-contaminated by heavy metals and organic compounds and the role of microbes in the remediation system -141 - Abstract. This paper presents the findings of a one-year research project, in which participants explored the function of microbe remediation efficiency and plant growth. Corn and rye grass were planted separately and in mixed quantities to remediate sediments co-contaminated by heavy metals and typical polycyclic aromatic hydrocarbons (PAHs). The study revealed that both the number and the activity of microbes were affected during the sediment remediation process. It also showed that the overall trend at first increased and then decreased, with the microbial numbers reaching their highest levels during the second week of soil cultivation. In the heavy-metal, organic-compound, co-contaminated matrix, the researchers found that mono-cropping the corn removed more lead, with the removal rate reaching a high of 12.96%. They found further that in the mixed-planting pattern, the removal rate of zinc reached a maximum level of 31.4%. The results of the study showed conclusive evidence that organic matters play an important role in the plant-microbe remediation of contaminated sediments.

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A review of approaches and techniques used in aquatic contaminated sediments: metal removal and stabilization by chemical and biotechnological processes

Cited by 363 publications

References 123 publications

Remediation of Hg-contaminated marine sediments by simultaneous application of enhancing agents and microwave heating (MWH)

Remediation of Hg-contaminated marine sediments by simultaneous application of enhancing agents and microwave heating (MWH)

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

Efficiency of Phytoremediation on the Sediments Co-Contaminated by Heavy Metals and Organic Compounds and the Role of Microbes in the Remediation System

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