The correct individuation of the best final destination for MSW cannot ignore the option of thermal treatment, taking into account both the possibility of energy recovery and the capacity of the thermal process to des...The correct individuation of the best final destination for MSW cannot ignore the option of thermal treatment, taking into account both the possibility of energy recovery and the capacity of the thermal process to destroy an important part of the pollutants that are originally present in the waste itself. In order to realize this operation, it is possible to use conventional incineration systems, but also to consider new innovative processes and technologies; among them, production of RDF （refuse derived fuel） is quite often used in process plants, and gasification of waste seems to be a promising solution. The aim of the present paper is a critical analysis of the above-mentioned solutions, not only from the operational point of view but also on the basis of the status of the art of practical applications and in consideration of the most significant results for the Italian and European situation. For the application of these technologies a specific Italian case has been considered： it consists of the correct individuation of waste management modality for final destination of wastes produced in a city located in Piedmont （north of Italy）. The results of the analysis highlight the environmental and economic convenience, for the specific considered case, of the direct combustion in incineration plant of the all amount of the wastes produced. From the considered specific example some more general conclusions can be drawn.展开更多
Fatty acids and derivatives(FADs)are resources for natural antimicrobials.In order to screen for additional potent antimicrobial agents,the antimicrobial activities of FADs against Staphylococcus aureus were examined ...Fatty acids and derivatives(FADs)are resources for natural antimicrobials.In order to screen for additional potent antimicrobial agents,the antimicrobial activities of FADs against Staphylococcus aureus were examined using a microplate assay.Monoglycerides of fatty acids were the most potent class of fatty acids,among which monotridecanoin possessed the most potent antimicrobial activity.The conventional quantitative structure-activity relationship(QSAR)and comparative molecular field analysis(CoMFA)were performed to establish two statistically reliable models(conventional QSAR:R2=0.942,Q 2 LOO=0.910;CoMFA:R 2=0.979,Q 2=0.588,respectively).Improved forecasting can be achieved by the combination of these two models that provide a good insight into the structureactivity relationships of the FADs and that may be useful to design new FADs as antimicrobial agents.展开更多
文摘The correct individuation of the best final destination for MSW cannot ignore the option of thermal treatment, taking into account both the possibility of energy recovery and the capacity of the thermal process to destroy an important part of the pollutants that are originally present in the waste itself. In order to realize this operation, it is possible to use conventional incineration systems, but also to consider new innovative processes and technologies; among them, production of RDF （refuse derived fuel） is quite often used in process plants, and gasification of waste seems to be a promising solution. The aim of the present paper is a critical analysis of the above-mentioned solutions, not only from the operational point of view but also on the basis of the status of the art of practical applications and in consideration of the most significant results for the Italian and European situation. For the application of these technologies a specific Italian case has been considered： it consists of the correct individuation of waste management modality for final destination of wastes produced in a city located in Piedmont （north of Italy）. The results of the analysis highlight the environmental and economic convenience, for the specific considered case, of the direct combustion in incineration plant of the all amount of the wastes produced. From the considered specific example some more general conclusions can be drawn.
基金Project(No.31071501)supported by the National Natural Science Foundation of China
文摘Fatty acids and derivatives(FADs)are resources for natural antimicrobials.In order to screen for additional potent antimicrobial agents,the antimicrobial activities of FADs against Staphylococcus aureus were examined using a microplate assay.Monoglycerides of fatty acids were the most potent class of fatty acids,among which monotridecanoin possessed the most potent antimicrobial activity.The conventional quantitative structure-activity relationship(QSAR)and comparative molecular field analysis(CoMFA)were performed to establish two statistically reliable models(conventional QSAR:R2=0.942,Q 2 LOO=0.910;CoMFA:R 2=0.979,Q 2=0.588,respectively).Improved forecasting can be achieved by the combination of these two models that provide a good insight into the structureactivity relationships of the FADs and that may be useful to design new FADs as antimicrobial agents.
