Adsorption Technology for Removal of Toxic Pollutants

Anjum, Ansar

doi:10.1007/978-3-319-61146-4_2

Cited by 8 publications

(2 citation statements)

References 249 publications

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“…Zhang (2018) explored the removal of Cu, Pb, and Zn from AMD using dairy manure compost. Potato peels, sawdust, blackgram husk, eggshell, seed shells, coffee husks, sugar-beet pectin gels, and citrus peels were also examined as non-living plant material for wastewater treatment (Anjum, 2017). Algae were evaluated as a natural biomass for metal removal from wastewaters due to their widespread availability, low cost, and high capacity for metal sorption .…”

Section: (Bio) Adsorption Processesmentioning

confidence: 99%

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Mulopo¹

2022

J. Ecol. Eng.

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The successful acid mine drainage (AMD) treatment needs site-specific installation and implementation, as well as the deployment of technology that is compatible with the pollutants contained in the AMD. If key by-products of the AMD can be recovered, the financial sustainability of the AMD remediation method may be greatly improved. Additional research into novel and innovative solutions is necessary to advance in this direction. To accomplish this, it is necessary to have a complete awareness of current remediation technologies that are available and accessible. Active physical treatment methods such as ion exchange, adsorption, electrochemistry, and membrane techniques were examined in this article. Membrane technology excels in terms of ease of use, versatility, and environmental effect but produces brine streams the management of which remains vital for future adoption of the technology. Liquid membranes (LM), Micellar Enhanced Ultra-Filtration (MEUF), and Polyelectrolyte Enhanced Ultra-Filtration (PEUF) are all innovative membrane technologies that may provide some possibilities for metal recovery from chemical sludge and/or brine streams. Electrochemical technologies are considered an attractive alternative for AMD treatment, because they require only electricity as a consumable and can treat AMD to high standards by removing metals via (co)precipitation and sulfate via ionic migration (when an anion-exchange membrane is used in the configuration), while producing significantly less sludge. However, the accepted shortcomings include membrane/electrode fouling produced by (co)precipitates on the active surfaces necessary for the process, a lack of understanding regarding the effective scaling up to industrial scale, and the relatively expensive capital expenditure (CAPEX) required. The removal of heavy metals from AMD effluents by adsorption has a number of technical and environmental benefits, including high efficiency, and environmental friendliness. Despite its benefits, this technique has certain hurdles, such as the production process for low-cost adsorbents.

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Section: (Bio) Adsorption Processesmentioning

confidence: 99%

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Mulopo¹

2022

J. Ecol. Eng.

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“…Furthermore, heavy metals are unable to dissolve in flowing water and overcome variations in pH, conductivity, or microbiology that impact water quality. However, most of the techniques applied for removing heavy metals from wastewater are costly, thus adding financial burden [ 69 ]. Furthermore, owing to the specific properties of mesoporous silica materials they can be used as propitious adsorbents and catalytic support for treating wastewater [ 70 , 71 ].…”

Section: Diatoms Silica Shells As Robust Nanomaterials To Treat Heavy Metals In Waste Watermentioning

confidence: 99%

Diatom microalgae as smart nanocontainers for biosensing wastewater pollutants: recent trends and innovations

Khan

Rai²,

Ahirwar

et al. 2021

Bioengineered

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Microalgae have been recognized as one of the most efficient microorganisms to remediate industrial effluents. Among microalgae diatoms are silica shelled unicellular eukaryotes, found in all types of water bodies and flourish very well even in wastewater. They have their silica cell wall made up of nano arrayed pores arranged in a uniform fashion. Therefore, they act as smart nanocontainers to adsorb various trace metals, dyes, polymers, and drugs which are hazardous to human as well to aquatic life. The beautiful nanoarchitecture in diatoms allows them to easily bind to ligands of choice to form a nanocomposite structure with the pollutants which can be a chemical or biological component. Such naturally available diatom nanomaterials are economical and highly sensitive compared to manmade artificial silica nanomaterials to help in facile removal of the toxic pollutants from wastewater. This review is thus focused on employing diatoms to remediate various pollutants such as heavy metals, dyes, hydrocarbons detected in the wastewater. It also includes different microalgae as biosensors for determination of pollutants in effluents and the perspectives for nanotechnological applications in the field of remediating pollutants through microalgae. The review also discusses in length the hurdles and perspectives of employing microalgae in wastewater remediation.

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An Overview of Arsenic Contamination in Water Resources of Pakistan, Risk Assessment and Remediation Strategies

Bashir

Yasin

Bashir

et al. 2022

Global Arsenic Hazard

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Adsorption Technology for Removal of Toxic Pollutants

Cited by 8 publications

References 249 publications

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives

Diatom microalgae as smart nanocontainers for biosensing wastewater pollutants: recent trends and innovations

An Overview of Arsenic Contamination in Water Resources of Pakistan, Risk Assessment and Remediation Strategies

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