Cadmium removal with mutant Brevibacillus Agri C15 CdR entrapped in calcium alginate gel: Multi-constituent ionic exchange.

Autor: Jebril, Nadia, Boden, Rich, Braungardt, Charlotte
Předmět:
Zdroj: AIP Conference Proceedings; 2023, Vol. 2820 Issue 1, p1-15, 15p
Abstrakt: The ability of mutant Brevibacillus agri C15 CdR to remove cadmium (Cd) from artificial groundwater (AGW) under varied pH and the interactions of Cd, calcium, phosphate, and humic acid competing for ion exchange sites on Ca-alginate beads containing cells of strains, were investigated in small laboratory bench-scale column reactors. It was found that the highest removal rate and accumulative amount of Cd from AGW were achieved at pH 4.00. A significant impact was observed in the rate of Cd uptake due to the cation/anion or the humic acid effect. The preferential removal of Cd from natural river water (NRW, Walkham River) was also obtained. The hazard classification of this Cd-absorbent was classified as non-hazardous waste. Altogether, these results show that with mutant B. agri C15 CdR entrapped in calcium alginate gel, there was potential to remove Cd from the freshwater. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index