Regeneration and reuse of microbial extracellular polymers immobilised on a bed column for heavy metal recovery

Insight into biosorption of heavy metals by extracellular polymer substances and the improvement of the efficacy: a review

“…A study demonstrated that removal rates of Cu(II), Ni(II), Cd(II) and Co(II) were increased by 8, 2, 9 and 6%, respectively, after immobilization of EPS produced by Chryseomonas luteola TEM05, as the result of more adsorption sites provided by the hydroxyl groups in sodium alginate (Ozdemir et al 2005a(Ozdemir et al , 2005b, and the regeneration of EPS was substantially improved after immobilization. Similarly, the study has shown for the first time that the metal adsorption rate of EPS can reach 99Á9% by immobilizing EPS on silica gel coated with polyethylenimine, and its adsorption performance remains unchanged after five adsorption-desorption cycles (Ajao et al 2020).…”

“…Similarly, the study has shown for the first time that the metal adsorption rate of EPS can reach 99·9% by immobilizing EPS on silica gel coated with polyethylenimine, and its adsorption performance remains unchanged after five adsorption–desorption cycles (Ajao et al . 2020).…”

Biopolymers in Aerobic Granular Sludge—Their Role in Wastewater Treatment and Possibilities of Re-Use in Line with Circular Economy

“…For Cu 2+ , five adsorption-desorption cycles were conducted with no reduction in the amount of adsorbed metal at the breakthrough point. The major mechanism responsible for ion removal by EPS was ion exchange [108].…”

Cadmium stress triggers significant metabolic reprogramming in Enterococcus faecium CX 2–6

“…Human activities and industrial developments have created tremendous stresses on the ecological environment. For example, as one type of abiotic stresses heavy metal pollutions in the soils are increasingly threatening the global crop and food production [1] , [2] , [3] . More importantly, consumption of foods and crops polluted by heavy metals can be a significant health risk to humans and animals [4] .…”