21 research outputs found
The biodegradation of aromatic compounds by a white-rot fungus and related applications
No full text--
Experimental investigation of the overcharge effects on commercial li-ion batteries with two different anode materials
No full textLithium-ion batteries are now a widespread technology in automotive applications. Together with the life of the batteries and their performance, safety plays a fundamental role in ensuring the spread of electromobility in our society. Overcharge is one of the most severe safety problems for the large-scale application of lithium-ion batteries. In this work the results of the overcharge tests performed on Lithium Ion cells with different anode materials are presented: A comparison was made between graphite-based anode Li-ion batteries and Lithium Titanate Oxide (LTO)-based anode Li-ion batteries. Experimental tests were performed with different current intensities: it was thus possible to analyze the effects of an overcharge as the current supplied varies. The graphite-based anode Li-Ion batteries are equipped with protection devices which act by blocking the passage of current in the cell and avoiding venting and/or explosion phenomena; on the other hand, LTObased anode Li-Ion Batteries, although considered intrinsically safer batteries, experienced thermal runaway during the overcharge tests. Increasing the overcharge current, the effects of the electrical abuse are more destructive. © 2021 Italian Association of Chemical Engineerin
Aqueous plant extracts as stimulators of laccase production in liquid cultures of Lentinus edodes
No full textTotal and specific activities of extra-cellular laccases from Lentinus
edodes were enhanced by adding corn straw and chestnut juice to the
liquid growth medium. The aqueous extracts were chemically characterized
and revealed the presence of several phenolic and non-phenolic
compounds. Extensive extraction of these components from the tested
extracts completely annulled their stimulating properties on laccase
production, suggesting that these compounds can act at micromole levels
Trattamento biologico del residuo solido proveniente dagli impianti di estrazione dell’olio di oliva a due fasi
No full text--
The biodegradation of recalcitrant effluents from an olive mill by a white-rot fungus
No full textBiodegradation of olive-mill wastewater (OMW) was performed by the
polyurethane-immobilized mycelium of Lentinula edodes. Throughout three
consecutive treatment cycles of the effluent significant abatements of
its polluting characteristics were observed. In fact, its contents in
total organic carbon, total phenols, total ortho-diphenol were
dramatically reduced. In addition, a significant effluent decolorization
was evident. (C) 1998 Elsevier Science B.V. All rights reserved
Studio sulla tutela della salute e della sicurezza dei lavoratori del settore trasporti.
No full text
Characterization of immobilized laccase from Lentinula edodes and its use in olive mill wastewater treatment
No full textThis study is mainly concerned with the characterization of an immobilized laccase from the white-rot fungus Lentinula edodes for use in wastewater treatment. The enzyme was immobilized on chitosan by adsorption and subsequent cross-linking with glutaraldehyde. The immobilized laccase displayed a lower specific activity and a lower substrate affinity than the free enzyme. Nevertheless, the immobilized catalyst exhibited an appreciable catalytic capability (520 units g−1 support) along with remarkably improved stability properties to various parameters, such as temperature, pH and storage time. The treatment of olive mill wastewater with immobilized laccase led to a partial decolorization as well as to significant abatements in its content in polyphenols, ortho-diphenols combined with a decreased toxicity of the effluent
Integrated approach of metal removal and bioprecipitation followed by fungal degradation of organic pollutants from contaminated sediments
No full text
