Recalcitrant compounds represent a serious concern in wastewater treatment since conventional processes are not suitable for their removal. In recent years, white rot fungi (WRF) with their potential of removing hazardous and recalcitrant pollutants, have been regarded with increasing interest. Due to the high organic content, the decontamination of landfill leachate requires innovative and sustainable technologies, among which fungal-based one show interesting potential. This study focused on fungal treatment of raw landfill leachate and synthetic recalcitrant compounds mixture through batch tests. A total of 12 fungal strains were screened for their ability to treat raw leachate. Color removal, pH, enzymatic activities (laccases and manganese-dependent peroxidases, MnP) were measured. Several fungal strains, including 3 autochthonous strains and an allochthonous one, resulted in the decolourisation of leachate up to 40% within 4 days of treatment. Bjerkandera adusta MUT 2295 was selected as the optimum strain due to its capability of decolorizing leachate up to 40%, combined with MnP activity.
TREATMENT OF RAW LEACHATE AND SYNTHETIC RECALCITRANT COMPOUNDS USING A SELECTED WHITE ROT FUNGUS / Bardi, Alessandra; Tigini, Valeria; Spina, Federica; Varese, Giovanna; Spennati, Francesco; Di Gregorio, Simona; Petroni, Giulio; Yuan, Qiuyan; Munz, Giulio;. - ELETTRONICO. - (2016), pp. 114-115. ( SIDISA 2016, X INTERNATIONAL SYMPOSIUM ON SANITARY AND ENVIRONMENTAL ENGINEERING Roma, Italy 19-23 June 2016).
TREATMENT OF RAW LEACHATE AND SYNTHETIC RECALCITRANT COMPOUNDS USING A SELECTED WHITE ROT FUNGUS
SPENNATI, FRANCESCO;MUNZ, GIULIO
2016
Abstract
Recalcitrant compounds represent a serious concern in wastewater treatment since conventional processes are not suitable for their removal. In recent years, white rot fungi (WRF) with their potential of removing hazardous and recalcitrant pollutants, have been regarded with increasing interest. Due to the high organic content, the decontamination of landfill leachate requires innovative and sustainable technologies, among which fungal-based one show interesting potential. This study focused on fungal treatment of raw landfill leachate and synthetic recalcitrant compounds mixture through batch tests. A total of 12 fungal strains were screened for their ability to treat raw leachate. Color removal, pH, enzymatic activities (laccases and manganese-dependent peroxidases, MnP) were measured. Several fungal strains, including 3 autochthonous strains and an allochthonous one, resulted in the decolourisation of leachate up to 40% within 4 days of treatment. Bjerkandera adusta MUT 2295 was selected as the optimum strain due to its capability of decolorizing leachate up to 40%, combined with MnP activity.
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