1,720,990 research outputs found
The recovering of the pollutant releasehistory in aquifer with non uniform transport process
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Analisi teorica e numerica di acquiferi eterogenei condizionati in carico e trasmissività
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New Applications of the Geostatistical Procedure in the Recovering of Pollutant Release History in Aquifers with Highly Heterogeneous Flow Field
No full textIdentification of Reliability Limits in the Transfer Function Approach for the Solution of Inverse Problems in Groundwater Transport
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Processi di trasporto in campi eterogenei bidimensionali con condizionamento in trasmissività e carichi. Parte II: applicazione della teoria a casi particolari
No full textApplicazione comparativa di tre metodi di risoluzione del problema inverso in un acquifero eterogeneo bidimensionale
No full textThree methods are applied to identify the transmissivity field in 2D heterogeneous aquifers strarting from the knowledge of transmissivity and head observations in few locations. The methods are: co-kriging, modified Marquardt, and the Differential system.
The results are compared with attention to the differences in transmissivity and head fields and to the arrival time and dispersion of the breakthrough curves
Rainwater harvesting for home-garden irrigation: a case study in Italy
Full text linkIn residential buildings, drinking water is often used for tasks that do not necessarily require high quality water, such as home-garden irrigation. Our research focuses on the idea of harvesting rainwater to promote sustainable management of low-quality water resources on a building scale for irrigation purposes. The effectiveness of a collection system depends on the weather conditions, which determine also the water need of the plants, on the size of the cultivated area and on the collection surfaces. In this research, a rainwater harvesting system (RWH) for the irrigation of home-gardens in the city of Celano (L'Aquila - Italy) has been analysed. The obtained results show that to maximize water savings a great investment is necessary, i.e. not refundable in a reasonable period due to the low cost of drinking water. On the contrary, to maximize the economic return, it is required a smaller and cheaper tank, but the maximum water savings efficiency decrease to about 60%. In the latter case the RWH system can be cheaper than an irrigation plant supplied by the aqueduct. In the work graphs are provided for practical design use for realizing a RWH system in areas with meteorological conditions similar to those of the survey area, according both the highest water savings efficiency or the highest economic return
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