Removal of Phenol from Aqueous Solution by Adsorption on to Coal Fly Ash

Abstract

The present work examines the possible use of fly ash, a byproduct of coal power stations, as a means of removing phenol from water, or equivalently, of restricting its movement in solid wastes or soil. Equilibrium experiments were performed to evaluate the removal efficiency of fly ash. The adsorption experiments were undertaken using fly ash treated at three different pH levels and with three different temperatures. The results indicate that although phenol can be removed from water, this depends markedly on the temperature and pH value of the treatment solution employed.

Adsorption of phenolic compounds on low-cost adsorbents: A review

“…The adsorption experiments were undertaken using fly ash treated at three different pH levels and with three different temperatures. The results indicated that although phenol can be removed from water, this depends markedly on the temperature and pH value of the treatment solution employed [141]. Adsorption isotherms for adsorption of phenol, 3-chlorophenol, and 2,4-dichlorophenol from water onto fly ash were determined [142].…”

Environmental-benign utilisation of fly ash as low-cost adsorbents

“…The adsorption experiments were undertaken using fly ash treated at three different pH levels and with three different temperatures. The results indicated that although phenol can be removed from water, this depends markedly on the temperature and pH value of the treatment solution employed [116].…”

Thermodynamic and kinetic parameters of ofloxacin adsorption from aqueous solution onto modified coal fly ash

“…Its properties make it difficult to biodegrade ofloxacin or remove ofloxacin from aqueous solution. Among the techniques for removal of ofloxacin from wastewater, adsorption has been proved to be an effective and attractive process because of its inexpensive nature and ease of operation [2][3][4][5][6]. However, only a limited amount of the adsorption behaviors of ofloxacin have been reported [7].…”