Possible Utilization of Silica Gel Sludge for the Removal of Phenol from Aqueous Solutions: Laboratory Studies

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

“…The maximum loading capacity of biosorbent was found to be 86.1 mg/g for phenol, 102.4 mg/g for o-chlorophenol and 116.3 mg/g for p-chlorophenol at 100 mg/L initial pollutant concentration. The adsorption capacity of silica gel sludge for phenol removal from aqueous solution was studied [164]. Surplus biological sludge from wastewater treatment operations was converted into activated carbon and then added to the aerated vessel of an activated sludge process treating phenol [165].…”

Exploitation of expired cellulose biopolymers as hydrochars for capturing emerging contaminants from water

“…26 To predict equilibrium parameters, Freundlich (eqn S8 in ESI†) and Langmuir (eqn S9 in ESI†) isotherms were plotted. 27,28…”

“…26 To predict equilibrium parameters, Freundlich (eqn S8 in ESI †) and Langmuir (eqn S9 in ESI †) isotherms were plotted. 27,28 In addition, regeneration of Cel-HTT was performed aer FLX and MB adsorption using ethanol absolute. Adsorption was conducted at pH 7.5 on 25 ppm FLX or MB using a dose of 1.33 g L −1 till reaching equilibrium, then the particles were washed with 50 mL ethanol absolute for 30 min, dried and weighed again.…”