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Superabsorbent Hydrogels for Heavy Metal Removal

In: Trace Metals in the Environment - New Approaches and Recent Advances

Author

Listed:
  • Luqman Ali Shah
  • Tanzil Ur Rehman
  • Noor Saeed Khattak
  • Abbas Khan
  • Noor Rehman
  • Dr Sultan Alam

Abstract

The superabsorbent hydrogels (SAHs) are 3D polymer networks having hydrophilic nature, which can swell, absorb, and hold incredible amount of water in aqueous medium showing better sorption ability. The sorption ability enables SAH to absorb organic pollutants, dyes, and heavy metal ions (HMI) from wastewater. Therefore, SAHs have recently got considerable interest from the researchers to be used for wastewater treatment. In order to know the swelling property and to understand the wastewater treatment in general and heavy metal ion removal from industrial effluent in particular, this chapter describes the removal of heavy metal ions from wastewater in details. Thus this chapter will enable us to understand the theoretical and experimental part regarding the removal of heavy metal ions by SAH from wastewater. It also highlights the parameters of adsorption process such as effect of initial concentration of heavy metal ions, effect of external stimuli (pH), effect of temperature on the removal of heavy metal ions, and dosage studies. The synthesis of SAH and its use for removal of heavy metal ions from wastewater as well as recycling, selectivity, and effectiveness are also discussed in detail.

Suggested Citation

  • Luqman Ali Shah & Tanzil Ur Rehman & Noor Saeed Khattak & Abbas Khan & Noor Rehman & Dr Sultan Alam, 2021. "Superabsorbent Hydrogels for Heavy Metal Removal," Chapters, in: Mario Alfonso Murillo-Tovar & Hugo Albeiro Saldarriaga Norena & Agnieszka Saeid (ed.), Trace Metals in the Environment - New Approaches and Recent Advances, IntechOpen.
    • Handle: RePEc:ito:pchaps:197428
    DOI: 10.5772/intechopen.89350
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    More about this item

    Keywords

    superabsorbent hydrogels; swelling ability; sensitivity; heavy metal ions; wastewater treatment;
    All these keywords.

    JEL classification:

    • Q55 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Technological Innovation

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