A Comprehensive Review of Wastewater Treatment Using Adsorption Process onto Low-Cost Adsorbents

Abstract

To remove pollutants from its aqueous solutions, adsorption methods are commonly utilized. Adsorption of contaminants such as urea, heavy metals, dyes and other organic pollutants has drawn a lot of attention recently. Low-cost adsorbent is one of the most important factors that influence the adsorption techniques. Various attempts have been studied to prepare low cost adsorbent surfaces to enhance the adsorption efficiency, as well as their chemical and physical features. Using natural materials as adsorbent surfaces have brought significant attention because they were considered as low-cost and eco-friendly adsorbent. The important research areas linked to low-cost adsorbents to remove pollutants from its aqueous solutions and their effects on the adsorption process are reviewed in this paper. This paper provides readers better understood of adsorption process with the potential work using low cost-adsorbent surfaces.