Chapter 11 - Sodium alginate nanoadsorbents for wastewater treatment: synthesis and characterizations

Abstract

Water pollution is one of the utmost matters as this issue apprehends reactionary dyes and onerous ions from the commercial industry. In numerous regions of the world, the swiftly flourishing demography, devouring resources of water and the change of climate lead to a lengthy aridness and inundations have brought up drinking water. For supplying fresh water in sufficient quantities, the progression of durable and cost-effective materials and techniques is essential for the water industry. The conventional methods of water purification, because of enhancing the need for water combined with health guidelines and arising pollutants, stay invalid for conferring enough safe water. To remove pollutants from water, the nanotechnology approach, materials and devices are built from molecular components offer highly effective solutions. SA-based nanocomposites have been developed by incorporating various compounds, nanomaterials, magnetic and microorganisms into the alginate hydrogels/beads as a bio-adsorbent for the environmental infliction. SA-based hydrogel nanocomposites, for the rectification of water, have attained much attention in the research area due to their diacritic physical and chemical features include swelling activity, hydrophilicity, changing ability, and others. In the disposal of a variety extent of heavy metals and toxic dyes from aqueous solutions, SA-based hydrogel nanocomposites manifest superior adsorption capacity and in the 3D networks of hydrophilic hydrogel nanocomposites, an elevated quantity of water catches mixing. In our current study, we emphasize the adsorption capability of various synthesized SA-based hydrogel nanocomposites to dismissal the organic and inorganic pollutants from the watery solution.