Application of granular activated carbon packed-bed reactor in microwave radiation field to treat phenol

A process applying granular activated carbon (GAC) to adsorb phenol and usi ng microwave (MW) energy to treat the phenol adsorbed by GAC is successfull y to be created. The GAC adsorption of phenol has a maximum value at 400 mg /L for 220 mg/g of GAG. Phenol of 5.0 and 50.0 mg/L (adsorbed by GAG) are a ble to be treated to a non-detectable level with GAC-packed-bed reactor sys tem in microwave radiation field. The residual for a complete decomposition detected is H2O and CO2 only. A comparison of single- and double-stage GAG-packed-bed system shows that t he double-stage system has a higher efficiency than that of the single-stag e one. It is becomes more obvious while the concentration of phenol increas es to a higher level (50 mg/L) (C) 1999 Elsevier Science Ltd. All rights re served.