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Water

pH Measurement During Drinking Water Treatment

Aeration of raw water

■ Background
The water which is introduced into our drinking water system must meet the most versatile requirements concerning hygiene but also certain corrosion requirements to protect the water pipes. To produce drinking water of the required quality, there are many different treatment processes depending on the origin of the water.

■ Procedure
A broadly used procedure is the open aeration of the raw water. The raw water can contain disturbing, corrosive carbon dioxide, which is driven off by aeration. Depending on the origin of the water, also iron and manganese compounds are oxidized and then filtered. In that process the raw water is sprayed through pumps and distributed over large surface packages in so-called trickling towers. To increase the efficiency, the aeration space can be blown with air from below in a counterflow process….

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