Removal of heavy metals and radionuclides from water using nanomaterials: current scenario and future prospects

Kumar, Vinod; Katyal, Deeksha; Nayak, SwayangSiddha

doi:10.1007/s11356-020-10348-4

Cited by 16 publications

(8 citation statements)

References 267 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1), adsorption has attracted the most attention due to its simple procedure, easy operation, and low cost. Numerous excellent review articles have evaluated the development of specific novel adsorbents (such as chitosan, 7 nanomaterials, 8 and one-dimensional carbon nanotubes 9 ) and integration of adsorption with other technologies (like biosorption 10 and membrane capacitive deionization 11 ). However, a comprehensive assessment on the recent progress of the adsorption removal technique is necessary.…”

Section: Introductionmentioning

confidence: 99%

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

Fei

2022

J. Mater. Chem. A

106

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

Fei

2022

J. Mater. Chem. A

106

View full text Add to dashboard Cite

show abstract

“…Furthermore, functional groups incorporation improves the adsorption capacity of nanomaterials. There is an increase in the surface area, reactivity, affinity, and selectivity toward the contaminant of interest [54,58,59]. Adsorption capacity is also related to factors such as the nature and size of the contaminant; pH, temperature, and ionic strength of the solution; solid-liquid balance; contact time; and mass transfer rate [54].…”

Section: Nanoadsorbentsmentioning

confidence: 99%

An Overview of Nanofiltration and Nanoadsorption Technologies to Emerging Pollutants Treatment

et al. 2022

View full text Add to dashboard Cite

The presence of emerging contaminants in water resources has been a global concern due to their environmental impact and effects on human and animal health. These compounds include pharmaceuticals and personal care products, pesticides, fire retardants, hormones, and plasticizers, among others. These contaminants are not completely removed during water and wastewater conventional treatment. Thus, alternative processes are necessary to face this issue. In this context, nanotechnology represents a promising strategy for the remediation of emerging contaminants. Nanostructured materials have highlighted properties, such as adsorption capacity and porosity, chemical stability, reactivity, mobility, and antimicrobial activity. The diversity of nanomaterials and the possibility of combining them contribute to their application in contaminant mitigation. Furthermore, they can be used in different removal techniques such as adsorption, and membrane filtration. Thus, this review article provides an overview and advances in the production and application of nanofiltration membranes and adsorbent nanomaterials for the treatment of effluents containing emerging pollutants.

show abstract

“…Hence, they need to be modified by suitable environment-friendly adsorbent (like calcium alginate) before application [1,32]. Though these CNTs shows good adsorption capacity, their recovery is difficult, it remains in effluent stream and imparts toxicity of CNTs in water [33].…”

Section: Adsorptionmentioning

confidence: 99%

Removal of Heavy Metals from Water: Technological Advances and Today's Lookout Through Membrane Applications

Chendake¹,

Mahajan-Tatpate²,

Dhume³

2021

Int. J. Membrane Sci. Techno.

View full text Add to dashboard Cite

Water contamination by heavy metal is a great environmental concern. It leads to many health issues ranging from diarrhoea, vomiting to life-threatening diseases like cancer, lung/kidney damage. This also affects soil biota/plant growth. Metal-ions have a tendency of bio-accumulation, hence pose a major issue upon entry in the food-cycle. Their removal from water is necessary before use for human/agricultural applications. Different methods reported for metal-ion separation are conventional methods viz. chemical-precipitation, ion-exchange, adsorption, coagulation, flocculation, flotation, electrochemical possess good separation efficiency, but the generation of a secondary pollutant, recovery issues restrict their applicability. Hence, there is a need of reliable techno-economical, environment-friendly, sustainable separation, recovery method. Membrane-based methods viz. reverse-osmosis, nano filtration, electrodialysis, ultrafiltration has ability to treat water for heavy metal recovery without chemical contamination. Recovered materials can be recycled/utilized further. Among different membrane-based processes, micellar/polymer enhanced ultrafiltration requires chemical addition and affects purity. Electrodialysis, reverse-osmosis, nanofiltration processes require large energy/operational issues. Hence, simple ultra filtration with membrane modification is preferable as low-energy requirements. This paper discusses details of conventional/advanced methods for heavy metal separation with the fundamental process, parameters, advantages/limitations.

show abstract

Removal of heavy metals and radionuclides from water using nanomaterials: current scenario and future prospects

Cited by 16 publications

References 267 publications

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

Design, synthesis, and performance of adsorbents for heavy metal removal from wastewater: a review

An Overview of Nanofiltration and Nanoadsorption Technologies to Emerging Pollutants Treatment

Removal of Heavy Metals from Water: Technological Advances and Today's Lookout Through Membrane Applications

Contact Info

Product

Resources

About