1999年8月1日 · This study developed a way to rapidly and effectively evaluate the remaining life of a granular activated carbon (GAC) bed used to mitigate taste and odor episodes. The maximum attenuation of a 2-methylisoborneol (MIB) episode, a representative taste and odor compound, can rapidly be determined using laboratory-scale columns packed with ...

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1999年10月1日 · The effect of granular activated carbon (GAC) service time on the remaining life of GAC adsorbers that are exposed to periodic pollutant episodes was evaluated. Equilibrium and kinetic parameters describing the adsorption of atrazine were determined for GAC that had been preloaded with background organic matter (BOM) for as long as 25 months.

1999年2月1日 · Many drinking water utilities may choose to use granular activated carbon (GAC) to remove disinfection by-product precursors from their water to comply with proposed U.S. Environmental Protection Agency rules. Activated carbon usage rates can be minimized by blending effluents from multiple parallel GAC columns.

1999年2月1日 · Granular activated carbon (GAC) treatment is one method that water utilities can use to increase removal of natural organic matter and comply with the recently promulgated Disinfectants/ Disinfection By-products Rule. The cost of GAC depends on its useful service life and its capacity for reuse.

1999年8月1日 · The pore and surface diffusion model of adsorption was used to develop an equation that indicates that the fraction of a trace contaminant removed across a granular activated carbon (GAC) column du...

In this research, bench-scale studies were conducted to investigate the performance of granular activated carbon (GAC) and biological activated carbon (BAC) processes for treating aqueous wastes containing dissolved and sorbed PCBs.

July 4, 1999Sunday, July 4, 1999 7/4/1999GAC Great American Country Logo

March 15, 1999Monday, March 15, 1999 3/15/1999A GAC Returning Announcement in 1999

2022年2月15日 · Zhao et al. (1999) irradiated both virgin GAC and biofilm-covered GAC by gamma rays at a dose of 20 kGy, and found that the adsorption capacity of the two GACs did not change. An important consideration for gamma irradiation is the selection of the optimum irradiation dose.