Adsorptive performance of lanthanum encapsulated biopolymer chitosan-kaolin clay hybrid composite for the recovery of nitrate and phosphate from water

Recent developments in alginate-based adsorbents for removing phosphate ions from wastewater: a review

“…14,15 Nonetheless, phosphate reaching water bodies with a concentration above the acceptable level causes eutrophication, leading to signicant environmental disruption. [16][17][18] Eutrophication results in the depletion of dissolved oxygen, which severely affects aquatic organisms that are sensitive to low levels of dissolved oxygen. 19,20 On the other hand, phosphate adversely affects human health, causing damage to bones, blood cells and the liver, kidney failure, and problems to the intestines and circulatory system.…”

“…19,20 On the other hand, phosphate adversely affects human health, causing damage to bones, blood cells and the liver, kidney failure, and problems to the intestines and circulatory system. 18 Therefore, the maximum amount of phosphate allowed in drinking water by the World Health Organization is 5 ppm. 21,22 Consequently, an immense amount of research has been accomplished for removing this detrimental contaminant from wastewater, as represented in Fig.…”

Cross-Linked Chitosan-Glyoxal/Kaolin Clay Composite: Parametric Optimization for Color Removal and COD Reduction of Remazol Brilliant Blue R Dye

“…KN has outstanding properties (e.g., porosity, low-cost, thermal stability, abundant availability, and non-toxicity) in environmental applications when employed as adsorbent alone and/or within a CTS composite, such as good adsorption capacity, high surface area, easy to functionalization its surface, high thermal stability, and environmentally friendly [34]. Recent studies show that CTS and KN complement each other for producing multifunctional biocomposite adsorbents, which can be effectively employed for removal of numerous water contaminants including organic anionic dyes [27], biological contaminants [35], organic cationic dyes [36], and nutrients [37]. From the environmental standpoint, utilizing kaolin clay powder as a filler or surface modifier to chitosan will improve the surface area and adsorptive property of chitosan, and will reduce the cost and environmental impact of solid waste disposal.…”

Optimization of Removal of Phosphate from Water by Adsorption Using Biopolymer Chitosan Beads

“…Overdischarge of phosphate from domestic and industrial wastewater and agricultural activities to lakes and seas blocks sunlight. Failure of sunlight to reach the bottom of lakes and seas causes a serious environmental problem such as eutrophication (Xu et al, 2021 , Banu et al, 2020 , Chen et al, 2020 , Omwene & Kobya, 2018 ). Thirty-two to seventy percent of the amount of phosphate results from detergents in the urban sewage water.…”