Adsorption of Sr by immobilized microorganisms
Wastewaters from numerous industrial and laboratory operations can contain toxic or undesirable components such as metal ions, which must be removed before discharge to surface waters. Adsorption processes that have high removal efficiencies are attractive methods for removing such contaminants. For economic operations, it is desirable to have an adsorbent that is selective for the metal contaminant of interest, has high capacity for the contaminant, has rapid adsorption kinetics, can be economically produced, and can be regenerated to a concentrated waste product or decomposed to a low-volume waste. Selected microorganisms are potentially useful adsorbents for these applications because they can be inexpensive, have high selectivities, and have high capacities for adsorption of many heavy metals, which are often problems in a variety of industries. A laboratory-scale packed column containing microbial cells immobilized within a gelatin matrix has been prepared, and its application to removal of Sr from a simulated wastewater is described. 6 refs., 2 figs., 3 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6908461
- Report Number(s):
- CONF-880521-4; ON: DE88014743
- Resource Relation:
- Conference: 10. symposium on biotechnology for fuels and chemicals, Gatlinburg, TN, USA, 16 May 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
MICROCOCCUS
SORPTIVE PROPERTIES
MICROORGANISMS
STRONTIUM
ADSORPTION
GELATIN
POLLUTANTS
STRONTIUM CHLORIDES
WASTE WATER
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
BACTERIA
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DISPERSIONS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
LIQUID WASTES
METALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROTEINS
SORPTION
STRONTIUM COMPOUNDS
SURFACE PROPERTIES
WASTES
WATER
550700* - Microbiology
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management