Arsenic removal from water/wastewater using adsorbents—A critical review

Recent developments in polysaccharide-based materials used as adsorbents in wastewater treatment

Interactions of metal ions with chitosan-based sorbents: a review

Activated carbons and low cost adsorbents for remediation of tri- and hexavalent chromium from water.

Equilibrium and kinetic studies in adsorption of heavy metals using biosorbent: a summary of recent studies.

Kinetic modeling and equilibrium studies during cadmium biosorption by dead Sargassum sp. biomass.

https://scielo.conicyt.cl/pdf/ejb/v6n3/a03.pdf

An evaluation of copper biosorption by a brown seaweed under optimized conditions

The biosorptive capacity of dried biomass fungus Rhizopus oryzae Went & Prinsen-Geerlings for metal sorption was compared with commercially available sources of chitin, chitosan and chitosan cross-linked with benzoquinone. Initial pH of the metal solution significantly influenced metal uptake capacity. The optimum biomass/solution ratio for metal uptake in all systems was 1 g/L. The highest metal uptake values (137, 108, 58, and 124 mg/g, respectively, for copper, zinc, arsenic, and chromium) were achieved with chitosan (1 g/L, at pH 4) from initial metal concentrations of 400 mg/L. Decreases in mean metal concentrations from a simulated copper/zinc mine effluent were 73%, 14%, and 36% for copper, aluminum, and zinc, respectively, which corresponded to respective metal uptake values of 16, 11, and 21 mg/g. Sorption from a simulated gold mine effluent showed decreases in mean concentrations of aluminum, arsenic, and copper of 85%, 30%, and 92%, respectively, which corresponded to respective metal uptake va...

Biosorption of metal ions using chitosan, chitin, and biomass of rhizopus oryzae

http://www.scielo.br/pdf/bjm/v32n1/5021.pdf

Bioaccumulation of copper, zinc, cadmium and lead by Bacillus sp., Bacillus cereus, Bacillus sphaericus and Bacillus subtilis

Cadmium and zinc biosorption, alone or in combination, was investigated with sodium alginate immobilizedChlorella homosphaera cells. Concentrations ranging from 20.0 to 41.0mg/l cadmium, 75.0 and 720.0mg/l zinc were tested and, in all cases, the metal removal achieved values near 100%. When these metals were put in combination a decrease in the rate of absorption was detected. Gold was also tested in the immobilized system and 90% of the initial metal added was recovered in a solution containing 213.0mg/l of the metal, the alginic matrix being responsible for 40% gold uptake.

Antonio Carlos Augusto da Costa

Papers

Kinetic modeling and equilibrium studies during cadmium biosorption by dead Sargassum sp. biomass.

An evaluation of copper biosorption by a brown seaweed under optimized conditions

Biosorption of metal ions using chitosan, chitin, and biomass of rhizopus oryzae

Bioaccumulation of copper, zinc, cadmium and lead by Bacillus sp., Bacillus cereus, Bacillus sphaericus and Bacillus subtilis

Metals biosorption by sodium alginate immobilized Chlorella homosphaera cells