Influence of sludge age on copper (2+) and chromium (3+) uptake by activated sludge
Journal Article
·
· Sep. Sci. Technol.; (United States)
This paper reports the results obtained on Cu/sup 2 +/ and Cr/sup 3 +/ uptake by activated sludge of 7 and 12 d sludge age. Removal efficiencies of these heavy metals decrease when their initial concentrations increase. For the Cu/sup 2 +/, sludges of lower age adsorb 12% less over the range of the metal concentration added. The Cr/sup 3 +/ adsorption was a function of both sludge age and initial concentration For an initial concentration of 32 mg/L, both sludges gave identical removals. The stability of bound, metal-activated sludge increases when the sludge age increases for Cu/sup 2 +/. The opposite effect has been noted with Cr/sup 3 +/.
- Research Organization:
- Univ. of Madrid (Spain)
- OSTI ID:
- 7200582
- Journal Information:
- Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 23:1-3; ISSN SSTED
- Country of Publication:
- United States
- Language:
- English
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·
· Sep. Sci. Technol.; (United States)
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTIVATED SLUDGE PROCESS
ADSORPTION
AGE DEPENDENCE
CATIONS
CHARGED PARTICLES
CHROMIUM COMPOUNDS
COPPER COMPOUNDS
DATA
EFFICIENCY
EXPERIMENTAL DATA
INFORMATION
IONS
MANAGEMENT
NUMERICAL DATA
PROCESSING
QUANTITY RATIO
REMOVAL
SEWAGE
SEWAGE SLUDGE
SLUDGES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
400105* -- Separation Procedures
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACTIVATED SLUDGE PROCESS
ADSORPTION
AGE DEPENDENCE
CATIONS
CHARGED PARTICLES
CHROMIUM COMPOUNDS
COPPER COMPOUNDS
DATA
EFFICIENCY
EXPERIMENTAL DATA
INFORMATION
IONS
MANAGEMENT
NUMERICAL DATA
PROCESSING
QUANTITY RATIO
REMOVAL
SEWAGE
SEWAGE SLUDGE
SLUDGES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES