Ex-Situ Remediation Technologies for Environmental Pollutants: A Critical Perspective

Kuppusamy, Saranya; Thavamani, Palanisami; Megharaj, Mallavarapu; Venkateswarlu, Kadiyala; Naidu, Ravi

doi:10.1007/978-3-319-20013-2_2

Cited by 73 publications

(55 citation statements)

References 365 publications

(260 reference statements)

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“…Other physicochemical techniques are the use of dispersants, cleaners, emulsifiers, surfactants, soil oxidizers, abiotic transformations, and chemical inactivation (potassium permanganate/hydrogen peroxide are used as chemical oxidants to mineralize non-aqueous hydrocarbons) (Kuppusamy et al, 2016). Though, there is growing discussion about the practice of these techniques as they involve the relocation of contaminants away from the original site or produce secondary pollution (Bao et al, 2012;Ferradji et al, 2014).…”

Section: Biological Methodsmentioning

confidence: 99%

Plant-bacteria synergism: An innovative approach for the remediation of crude oil-contaminated soils

Fatima¹,

Imran²,

Naveed³

et al. 2017

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Section: Biological Methodsmentioning

confidence: 99%

Plant-bacteria synergism: An innovative approach for the remediation of crude oil-contaminated soils

Fatima¹,

Imran²,

Naveed³

et al. 2017

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“…Any remedial efforts should be directed towards removing the risk rather than the contaminant (Reinikainen and Sorvari 2016). The traditional methods of remediation are based on excavation and subsequent disposal of the contaminated soil which is not only very expensive but does not eliminate the contaminant since it is only transferred to another site (Kuppusamy et al 2016b). Further, for any contaminant to pose risk it has to be in a bioavailable form, therefore, contaminant bioavailability plays a central role in any risk assessment (Van den Brink et al 2016).…”

Section: Risk-based Remediation Of Amls-a Sustainable Approachmentioning

confidence: 99%

Abandoned metalliferous mines: ecological impacts and potential approaches for reclamation

Venkateswarlu

Nirola

Kuppusamy

et al. 2016

Rev Environ Sci Biotechnol

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122

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The lack of awareness for timely management of the environment surrounding a metal mine site results in several adverse consequences such as rampant business losses, abandoning the bread-earning mining industry, domestic instability and rise in ghost towns, increased environmental pollution, and indirect long-term impacts on the ecosystem. Although several abandoned mine lands (AMLs) exist globally, information on these derelict mines has not been consolidated in the literature. We present here the state-of-the-art on AMLs in major mining countries with emphasis on their impact towards soil health and biodiversity, remediation methods, and laws governing management of mined sites. While reclamation of metalliferous mines by phytoremediation is still a suitable option, there exist several limitations for its implementation. However, many issues of phytoremediation at the derelict mines can be resolved following phytostabilization, a technology that is effective also at the modern operational mine sites. The use of transgenic plant species in phytoremediation of metals in contaminated sites is also gaining momentum. In any case, monitoring and efficacy testing for bioremediation of mined sites is essential. The approaches for reclamation of metalliferous mines such as environmental awareness, effective planning and assessment of pre-and postmining activities, implementation of regulations, and a safe and good use of phytostabilizers among the native plants for revegetation and ecological restoration are discussed in detail in the present review. We also suggest the use of microbially-enhanced phytoremediation and nanotechnology for efficient reclamation of AMLs, and identify future work warranted in this area of research. Further, we believe that the integration of science of remediation with mining policies and regulations is a reliable option which when executed can virtually balance economic development and environmental destruction for safer future.

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“…The process of the Pseudofirst-order kinetic model has been used for adsorption of reversible with an equilibrium being established between adsorbate and adsorbent systems although the process of the Pseudo-second-order kinetic model demonstrates chemisorptions which control the adsorption such as Vander Waals, hydrogen bonding, ion exchange etc. 40 The process of 2,4-DCP adsorption in sweetgum bark may be chemisorptions. It is possible to see similar adsorbent performance for each of the three plots in initial concentrations 100, 150 and 200 ppm when they are compared with each other's in Pseudo-second-order plots.…”

Section: 1 Pseudo-first-order Model and Pseudo-second-order Modelmentioning

confidence: 99%

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

Yıldız¹,

Keskin²,

Demirak³

2017

ACSi

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In this study, Turkish Sweetgum bark was used as a new biosorbent to investigate the removal of hazardous 2,4 dichlorophenol (2,4-DCP) from aqueous solutions in batch biosoption experiments. The effective usage of Turkish sweetgum bark is a meaningful work for environmental utilization of agricultural residues. The effects of experimental parameters like solution pH, contact time, initial concentration of adsorbate and amount of bisorbent dosage were investigated in a series of batch studies at 25 °C. Taguchi's Orthogonal Array (OA) analysis was used to find the best experimental parameters for the optimum design process in this study. The functional groups and surface properties of biosorbent were characterized by using Fourier transformer infrared (FTIR) and scanning electron microscopy (SEM) techniques. The experimental data were fitted to Langmuir isotherm and Freundlich isotherm models. There is a good agreement between the parameters and this confirms the monolayer adsorption of 2,4-DCP onto sweetgum bark. As a result of kinetic studies, the pseudo-second-order kinetic model was found to be suitable for all the data. Also, the results of the study show that Turkish Sweetgum bark can be potential as a low-cost alternative commercial adsorbents for removal 2,4 dichlorophenol from aqueous solutions.

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Ex-Situ Remediation Technologies for Environmental Pollutants: A Critical Perspective

Cited by 73 publications

References 365 publications

Plant-bacteria synergism: An innovative approach for the remediation of crude oil-contaminated soils

Plant-bacteria synergism: An innovative approach for the remediation of crude oil-contaminated soils

Abandoned metalliferous mines: ecological impacts and potential approaches for reclamation

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

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