title: Removal of chlorophenols from aquatic systems using the dried and dead fungus Pleurotus sajor caju.
abstract: In this study, the potential use of the fungus Pleurotus sajor caju to remove phenols (i.e., phenol, o-chlorophenol, p-chlorophenol and 2,4,6-trichlorophenol) from aqueous solutions was evaluated. Biosorption of phenol or chlorophenols reached equilibrium in 4 h. The maximum adsorptions of phenol and chlorophenols onto the Pleurotus sajor caju were 0.95 mmol/g for phenol, 1.24 mmol/g for o-chlorophenol, 1.47 mmol/g for p-chlorophenol and 1.89 mmol/g for 2,4,6-trichlorophenol. The affinity order was as follows: 2,4,6-trichlorophenol> p-chlorophenol> o-chlorophenol>phenol. Phenol and chlorophenols bindings onto Pleurotus sajor caju were clearly pH dependent. The adsorption of phenol and chlorophenols increased with increasing pH. Desorption was achieved using methanol solution (30%, v/v). Pleurotus sajor caju biomass is suitable for reuse for more than five cycles without noticeable loss of adsorption capacity.
authors.affiliation: Department of Chemistry, Hacettepe University, Biochemistry Division, Beytepe, Ankara, Turkey. denizli@hacettepe.edu.tr
authors.forename: Adil
authors.initials: A
authors.lastname: Denizli
authors.forename: Nilüfer
authors.initials: N
authors.lastname: Cihangir
authors.forename: Nalan
authors.initials: N
authors.lastname: Tüzmen
authors.forename: Güleren
authors.initials: G
authors.lastname: Alsancak
mesh_terms: D000327:Adsorption; D002733:Chlorophenols / Q000737:chemistry / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D006863:Hydrogen-Ion Concentration; D000432:Methanol; D020076:Pleurotus / Q000737:chemistry*; D013997:Time Factors; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
chemical_list: D002733:Chlorophenols; D000432:Methanol