Your browser doesn't support javascript.
loading
Separation of pollutants from aqueous solution using nanoclay and its nanocomposites: A review.
Manna, Suvendu; Das, Pratik; Basak, Piyali; Sharma, Amit Kumar; Singh, Vishal Kumar; Patel, Ravi Kumar; Pandey, Jitendra Kumar; Ashokkumar, Veeramuthu; Pugazhendhi, Arivalagan.
Afiliação
  • Manna S; School of Engineering, University of Petroleum and Energy Studies, Energy Acres, Bidholi, Dehradun, Uttarakhand, 248007, India. Electronic address: smanna@ddn.upes.ac.in.
  • Das P; School of Bioscience and Engineering, Jadavpur University, Kolkata, WB, 700032, India.
  • Basak P; School of Bioscience and Engineering, Jadavpur University, Kolkata, WB, 700032, India.
  • Sharma AK; School of Engineering, University of Petroleum and Energy Studies, Energy Acres, Bidholi, Dehradun, Uttarakhand, 248007, India. Electronic address: amitsharma@ddn.upes.ac.in.
  • Singh VK; School of Engineering, University of Petroleum and Energy Studies, Energy Acres, Bidholi, Dehradun, Uttarakhand, 248007, India.
  • Patel RK; School of Engineering, University of Petroleum and Energy Studies, Energy Acres, Bidholi, Dehradun, Uttarakhand, 248007, India.
  • Pandey JK; School of Engineering, University of Petroleum and Energy Studies, Energy Acres, Bidholi, Dehradun, Uttarakhand, 248007, India.
  • Ashokkumar V; Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
  • Pugazhendhi A; School of Renewable Energy, Maejo University, Chiang Mai, 50290, Thailand; College of Medical and Health Science, Asia University, Taichung, Taiwan. Electronic address: pugal.smile@gmail.com.
Chemosphere ; 280: 130961, 2021 Oct.
Article em En | MEDLINE | ID: mdl-34162115
ABSTRACT
Wastewater is always composed of different pollutants, most of which are toxic to the living being. It is very tough to separate all those diverse groups of contaminants using a single process or single material. Rather a sustainable and environment friendly processes should be adapted to restrict the secondary pollution generation. Nanoclay and its nanocomposites are one of the most used adsorbents that have been modified and used for the separation of almost all types of pollutants, including dyes, heavy metals, fluoride, nitrate, ammonia, emerging pollutants and bacteria. They are relatively inexpensive, easy to exploit and relatively maintenance-free. Thus, recent research bloomed for developing suitable adsorbents, including clay nanocomposites. The advantages and drawbacks of all the clay nanocomposites-based processes have been discussed critically in this article. Nano-clays or other nanoparticles incorporated synthetic and natural polymers-based clay nanocomposites were synthesized, and it was found that they can remove dyes in the range between 48 mg/g and 1994 mg/g. Similarly, they separate a diverse group of heavy metal ions, including As, Cu, Co, Pd, Zn, Cr, Ni, Cd, and Hg, in the range of 0.073-1667 mg/g. The clay nanocomposites also showed fluoride removal efficacy in the range of 0.134-23 mg/g. They are also useful for the separation of emerging pollutants like pesticides, pharmaceuticals, personal care products, trace elements, and particulate matters in the range of 0.1-651 mg/g the clay nanocomposites showed considerable nitrate, ammonia and bacteria removal efficacy too. Though it seems promising, more investigations with real wastewater and pilot-scale studies are recommended to explore large-scale wastewater treatment capabilities.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Purificação da Água / Metais Pesados / Poluentes Ambientais / Nanocompostos Idioma: En Revista: Chemosphere Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Purificação da Água / Metais Pesados / Poluentes Ambientais / Nanocompostos Idioma: En Revista: Chemosphere Ano de publicação: 2021 Tipo de documento: Article