Polyurethane and alginate immobilized algal biomass for the removal of aqueous toxic metals
We describe the development of immobilized, processed algal biomass for use as an adsorptive filter in the removal of toxic metals from waste water. To fabricate an adsorptive filter from precessed biomass several crucial criteria must be met, including: (1) high metal binding capacity, (2) long term stability (both mechanical and chemical), (3) selectivity for metals of concern (with regard to ionic competition), (4) acceptable flow capacity (to handle large volumes in short time frames), (5) stripping/regeneration (to recycle the adsorptive filter and concentrate the toxic metals to manageable volumes). This report documents experiments with processed algal biomass (Spirulina platensis and Spirulina maxima) immobilized in either alginate gel or preformed polyurethane foam. The adsorptive characteristics of these filters were assessed with regard to the criteria listed above.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 10131790
- Report Number(s):
- LBL-33253; CONF-930482-3; ON: DE93007665
- Resource Relation:
- Conference: 2. international symposium on in situ and on-site bioreclamation,San Diego, CA (United States),5-8 Apr 1993; Other Information: PBD: Dec 1992
- Country of Publication:
- United States
- Language:
- English
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