1,721,133 research outputs found
Development of environmental biotechnology and control of emerging biological contaminants: the grand challenge for a sustainable future
No full textViruses and bacteria are "Angels" that works in environmental biotechnologies for sustainable development and "Demons" that can compromise the quality of life
Editorial Perspectives: 2019 novel coronavirus (SARS-CoV-2): what is its fate in urban water cycle and how can the water research community respond? (vol 6, pg 1213, 2020)
No full textCorrection for 'Editorial Perspectives: 2019 novel coronavirus (SARS-CoV-2): what is its fate in urban water cycle and how can the water research community respond?' by Vincenzo Naddeoet al.,Environ. Sci.: Water Res. Technol., 2020,6, 1213-1216. DOI: ;10.1039/D0EW90015J
Numerical modelling of integrated OMBR-NF hybrid system for simultaneous wastewater reclamation and brine management
No full textOMBR is a recently developed technology for wastewater treatment. OMBR-NF hybrid system was numerically modelled. Influence of process variables on system performance indicators was investigated
Produzione e valorizzazione del biogas nei processi di digestione anaerobica
No full textI processi di digestione anaerobica di matrici organiche, seppure necessitino di una impiantistica complessa e di una elevata competenza degli operatori, contrariamente ai processi aerobici, notoriamente energivori, offrono la concreta possibilità di ottenere un consistente ritorno economico mediante il recupero energetico dal biogas che in essi viene prodotto. Le tecnologie disponibili consentono di utilizzare il biogas, dopo una preliminare depurazione, a scopo cogenerativo, ossia per la produzione di energia elettrica e termica contemporaneamente, con rese tali da potere soddisfare gli autoconsumi dell’impianto di produzione stesso e tali da consentire una commercializzazione all’esterno dell’energia cogenerata. Oggi, mentre da una parte vengono proposte soluzioni che consentono di ottimizzare i convenzionali motori endotermici da decenni utilizzati a scopo cogenerativo, dall’altra viene prospettato l’uso di sistemi assai più evoluti che, seppure ancora applicabili a campi ristretti di potenze prodotte, consentono di ottenere benefici economici ed ambientali di non trascurabile entità. Particolari forme di incentivazione recentemente attivate promuovono, inoltre, prima della trasformazione energetica del biogas, la valorizzazione per conversione a biometano, avente maggiore potere calorifico del biogas, e il successivo utilizzo diretto di quest’ultimo come combustibile per autotrazione o per successiva cogenerazione, comportando tale pratica elevati benefici economici ed ambientali
Sustainability of urban regeneration projects: Novel selection model based on analytic network process and zero-one goal programming
No full textThe urban land use policy must pursue sustainable development goals. These objectives are not only economic but also social, cultural, and environmental. Therefore, the definition of investment programs for the city must take place by selecting the projects on the basis of multiple evaluation criteria. The aim of the work is to define a multi-criteria evaluation model capable of selecting the combination of the best combination of the projects that must make up an integrated urban regeneration program. The novelty of the research consists in combining the algorithms of the Analytical Network Process (ANP) with those of the Zero-One Goal Programming (ZOGP), where the ANP makes it possible to clarify the interdependence relations between the criteria, as well as between criteria and projects, while the ZOGP allows considering requirements and constraints of the reference system. The effectiveness of the analysis tool is verified in a case study. The results of the research show that the model is able to direct the decision-maker towards urban regeneration programs that, effectively, reach the maximization of the final benefits, both in financial and socio-environmental terms. The algorithms also reveal considerable flexibility of the instrument, so much that it can be easily applied also for the characterization of urban programs aimed at different territorial contexts. The effects that the application of the model may have on land use and on the processes of allocating public resources highlight the important implications of Economic Policy
Environmental Odour Nuisance Assessment in Urbanized Area: Analysis and Comparison of Different and Integrated Approaches
No full textProlonged exposure to odour emissions causes annoyance which leads to nuisance and consequently to complaints. Different methodologies exist in the literature to evaluate odour impacts, but not all are suitable to assess environmental odour nuisance. Information about their applicability criteria and comparison, is scarce and referred to short time analysis. The research presents and discusses the application of different methods to characterize and assess odour nuisance around an industrial plant localized in a sensitive area. Experimental activities are carried out through a long-time analysis programme. Field inspections and predictive methods are investigated and compared. A modification of the traditional dispersion modelling approach is proposed in order to adapt its application for the prediction of the odour nuisance. The offensiveness and location factors are identified as key parameters in the quantification of the perceived nuisance. The integrated dispersion modelling multi-level approach is highlighted as the most suitable for defining the plant strategies. The paper provides useful information to characterize environmental odour problems and identify appropriate solutions for an effective management of odorous sources, with the aim of reducing complaints, restoring the proper relationship between odorous plants and the surrounding communities and increasing the overall quality of the environment
- …
