• AWWA JAW46248
Provide PDF Format

Learn More

AWWA JAW46248

  • Journal AWWA - Effect of Iron and Sulfur on Thermal Regeneration of GAC
  • Journal Article by American Water Works Association, 11/01/1997
  • Publisher: AWWA

$15.00$30.00


Regeneration of spent granular activated carbon (GAC) can be affected by inorganics that have accumulated by ion exchange on specific GAC sites, precipitation, or adsorption of metal organic complexes. The authors found iron (Fe) in several spent GAC samples. Sulfur (S) always appeared in these GAC samples as well. Although Fe catalyzes the gasification of GAC to oxides of carbon, Fe catalysis of GAC gasification experienced dramatic inhibition by S at concentrations as low as 100-300 mg S/kg GAC (0.01-0.03 percent). When S was reduced to 20 mg S/kg GAC, the Fe at 1 percent loading became a strong catalyst. Because S is usually present in spent GACs at concentrations that inhibit catalysis, thermal regenerations behaved essentially the same whether Fe was present or absent. Includes 48 references, tables, figures.

Related Products

AWWA ACE56362

AWWA ACE56362

Watershed Assessment Using Geographic Information Systems..

$12.00 $24.00

AWWA JAW21576

AWWA JAW21576

Journal AWWA - Evaluating Alternative Coagulants to Determine Efficiency and Cost Effectiveness ..

$15.00 $30.00

AWWA JAW48125

AWWA JAW48125

Journal AWWA - Considerations in As Analysis and Speciation..

$15.00 $30.00

AWWA ACE94279

AWWA ACE94279

Replacing Filters at a Water Treatment Plant: Making the Shoe Fit the Existing Treatment Process..

$12.00 $24.00