Transport of viruses and colloids in variably‐saturated soil and groundwater
[February 12-20, 2019]
Venue : Department of Hydrology, IIT Roorkee Download Course Details and Apply Before : January 30, 2019
Surface water is often used for the recharge of aquifers used in drinking‐water production. Surface water is often
contaminated with pathogenic micro‐organisms and viruses. These pathogens have to be removed to produce safe drinking water. Often chlorination is used as the most effective way for disinfection of drinking water. However, the use of chlorination is not permitted in the Netherlands. One effective way is the passage of surface water through soil, as is the case in bank filtration, dune recharge, and deep‐well injection. Dune recharge is widely applied in The Netherlands, where surface water, after some pretreatment, is fed into canals in protected dune sands. Then, water is abstracted after 50 to 60m of passage through the soil.
Aerial View of Castricum Dune Infiltration Area. Surface water, after some pretreatment, is fed into canals. Water is abstracted from a long row of wells between two canals (shown in red dashed lines)
In this short course, we present basic principles of groundwater flow and transport of dissolved matter, principles of virus and colloid transport, and an overview of all factors affecting fate of viruses. Results of a large number of laboratory and field experiments under both saturated and unsaturated conditions, for the study of movement of bacteriophages and colloids through soil will be presented. The development of a computational tool for fast calculation of protection zones of groundwater wells will be presented.
Prof. S. Majid Hassanizadeh
Professor of Hydrogeology
Faculty of Geosciences
Dr. Brijesh Kumar Yadav
Department of Hydrology
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