water well service Articles
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Evaluation of a pilot plant for removal of nitrate from groundwater using ion exchange and recycled regenerant
A combined system of ion exchange (IX) and advanced biophysical treatment of a recirculating regenerant was tested for nitrate removal from groundwater with minimal brine discharge and chloride addition to the product water. Using well water containing 21.5 ± 1.4 mg NO3−-N/L, optimal IX operation was found at a service cycle of 500 bed volumes (BV). Product water nitrate concentrations (7.4 ± ...
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Assessing sanitation service levels
Conventional sanitation ladders rank sanitation in increasing complexity of technological options. However, sanitation improvement is not as straightforward as the concept of “a ladder” with incremental improvements, might suggest. For example, from the user perspective, a VIP toilet may in some circumstances be a better option than a septic tank system. There is a wide gap between ...
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A Pandemic of Another Kind: Addressing the Issues of Clean Water Scarcity
As the coronavirus pandemic in some form continues to move across the world, health professionals are continually reminding us to exercise good hygiene and keep our hands clean. Easy enough, if you have access to a clean source of water. However, according to the USA Water Alliance, there are more than three million people presently that are without a dependable source of safe drinking water in ...
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