Chromium alginate

LM pectin/calcium systems Xanthan/carob and iota-carrageenan Xanthan/chromium Sodium alginates Gelatin. 

Pandey AK, Pandey SD, Misra V and Srimal AK (2003) Removal of chromium and reduction of toxicity to Microtox system from tannery ffluent by the use of calcium alginate beads containing humic add. Chemosphere 51 329-333. 

Alkali resistant alginates (beryllium and chromium) have few ionic bonds but considerable coordinate links, which are more stable. These links decrease extensibility but increase tenacity of the fibers. 

In some cases it has been found that the physical properties of some alginate fibers change during storage. Calcium-based and alginic acid yarns deteriorate whereas chromium- and beryllium-based yams improve rather than deteriorate during storage under standard conditions. ... 

Apiratikul R, Pavasant P (2008) Batch and column studies of biosorption of heavy metals by Caulerpa lentillifera. Bioresour Technol 99(8) 2766-2777 Araujo MM, Teixeira JA (1997) Trivalent chromium sorption on alginate beads. Int Biodeter... 

Dewangan, T., Tiwari, A., and Bajpai, A. K. 2011. Removal of chromium(VI) ions by adsorption onto binary biopolymeric beads of sodium alginate and carboxymethyl cellulose. J. Dispersion Sci. Technol. 32 1075-1082. 

A new composite biosorbent has been prepared by coating chitosan onto acid treated oil palm shell eharcoal (AOPSC) and is used for the removal of chromium [142]. Bromine pretreated ehitosan was found to be promising adsorbent for lead (II) removal from water [157]. The ability of chitosan as an adsorbent for Cu (II) and Cr (VI) ions in aqueous solution was studied by Schmuhl et al. (2001). Polymer blend films of chitin and bentonite were prepared and this blended polymer was used as an adsorbent for the removal of copper and chromium from the dye effluent [169]. The alginate-chitosan hybrid gel beads were prepared and it is used to adsorb divalent metal ions [182]. 

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