What are the methods to reduce groundwater contamination? I want information about suitable methods for prevention of groundwater contamination.
Join TheConstructor to ask questions, answer questions, write articles, and connect with other people. When you join you get additional benefits.
Log in to TheConstructor to ask questions, answer people’s questions, write articles & connect with other people. When you join you get additional benefits.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Contamination can reach groundwater in two ways – vertically or laterally.
People can’t do much about lateral flow except by not providing a flow gradient. For example, if you live next to the sea and pump your fresh water well like crazy, you may provide a flow gradient for salt water in to your well.
Vertical contamination is another issue. You spill diesel onto the ground and it will percolate downwards. Simple physics.
Except the pollutants might not actually reach the water table. There may be layers of adsorpent (not absorbent) clays or scoria that hold the pollutants or delay them enough to break down. Or there may be a good impermeable barrier such as a clay layer that prevent movement at all.
Note that in old fashioned gravity filtration for water purification, bacterial and viral pollutants can be stopped by quite a thin layer of filter sand.
Of course, the best way to avoid vertical pollution is not to have pollutant spills.