Natural Polymers-Based Green Adsorbents for Water Treatment - Chapter 6: Agrowaste-derived polymeric adsorbents for water purification

Elsevier, Natural Polymers-Based Green Adsorbents for Water Treatment, 2021, Pages 131-158
S.K. Shukla

A significant amount of agrowastes with industrially significant polymers and nonpolymeric components are perennially produced in most parts of the world. Chemical and physical treatments of these wastes yield several value-added products like cellulose, hemicellulose, lignin, silica, zeolite, and different carbon nanostructures. These value-added products are explored in different applications including water purification. The biomass-derived polymer-based adsorbents are having a heterogeneous composition with different important synergized properties like porosity, charged structure, and catalytic behavior for removal of different water pollutants like heavy metals, dyes, and microorganism. In light of this development, this chapter presents an overview of the development of polymeric adsorbents from different agrowastes along with used physical and methods with their success and shortcomings. The suitability of adsorbents will be explained for the removal of different water pollutants, viz heavy metal ions, dyes, organic molecules, and microorganisms with illustrations and limitations. Finally, a road map for commercial feasibility has been represented along with technical hitches and economic viability.