Removal of chlorophenols from aquatic systems using the dried and dead fungus Pleurotus sajor caju

• Published in: Bioresource technology Vol. 96; no. 1; pp. 59 - 62
• Main Authors: Denizli, Adil, Cihangir, Nilüfer, Tüzmen, Nalan, Alsancak, Güleren
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 2005; Elsevier Science
• Subjects: Adsorption; Biological and medical sciences; Biological treatment of waters; Biosorption; Biotechnology; Chlorophenols; Chlorophenols - chemistry; Chlorophenols - isolation & purification; Chromatography, High Pressure Liquid; Environment and pollution; Fundamental and applied biological sciences. Psychology; Fungal biomass; Hydrogen-Ion Concentration; Industrial applications and implications. Economical aspects; Methanol; Organic pollutants; Pleurotus; Pleurotus - chemistry; Pleurotus sajor caju; Time Factors; Waste Disposal, Fluid - methods; Water Purification - methods; Fungal biomass; Chlorophenols; Organic pollutants; Biosorption; Pleurotus sajor caju; Pleurotus sjor caju; Biosorption: Organic pollutants; Basidiomycetes; Biomass; Fungi; Aquatic environment; Pollutant; Phenol; Chlorophenol; Thallophyta
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2003.11.029

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.