Dear Nripendra, We have ...
Published by maarten waterloo, Senior ecohydrologist at Acacia Water
Dear Nripendra, We have experience in storage of water in artificial storage and recovery systems using effluent from tile drains in agricultural fields as infiltration water source. The main threat to the functioning of the infiltration, the first one is that the well may become clogged if sediment concentrations are too high in source water. This requires the installation of a disc or sand filter to clean the source water before infiltration. Iron/manganese precipitates may also pose a risk for clogging if the concentration of Fe/Mn ions is too high in the source water or in (anoxic) groundwater. To avoid contamination of groundwater by organic pollutants (pesticides) a combination carbon/sand filter may be needed to purify the source water. Can you explain why the well was abandoned - contamination, decrease in groundwater level? Regards, Maarten
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The reason for abandoning the well was abrupt decrease in groundwater level in the well. Now, the question is whether there will be infiltration even after the filtered water is allowed for recharge. Thanks and Regards.
Published by Nripendra Sarma, PHED, Government of Assam, India