pH in borehole water

pH in borehole water at 25 degC

health

≥ 5 and ≤ 9.7

If your water pH is above 7.7 it is time to act.

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The pH in borehole water.

  • The water pH is one of the most common water quality tests performed.
  • The pH indicates the sample's acidity but is actually a measurement of the potential activity of hydrogen ions (H+) in the water sample.
  • The pH measurements run on a scale from 0 to 14, with 7.0 considered neutral.
  • Solutions with a pH below 7.0 are considered acids.

What is pH?

  • The pH is a determined value based on a defined scale.
  • That is similar to temperature.
  • This means that the pH of water is not a physical parameter that can be measured as a concentration or in a quantity.
  • The measurement is a figure between 0 and 14.
  • This defining how acidic or basic a body of water is along the logarithmic scale.
  • The lower the number, the more acidic the water actually is.
  • The higher the number, the more basic it is.
  • Water with a water pH of 7 is considered neutral.
  • On the logarithmic scale it means that each number below 7 is 10 times more acidic than the previous number when counting down.
  • When counting up above 7, each number is 10 times more basic than the previous number.

ph_graph

If you want to know more about the pH of water. Please click on the ph.

 

 

pH Value of borehole water.

  • The degree of the acidity or the alkalinity of a solution like borehole water is measured on a scale (“pH-scale”) of 0 to 14.
  • The midpoint of 7.0 on the pH scale represents neutrality.
  • A neutral solution is neither acid nor alkaline.
  • Values below 7.0 indicate acidity.  
  • Values above 7.0 indicate alkalinity.
  • PH value is very important for water treatment systems.
  • When the pH of the water is low it will cause corrosion on water systems and pipelines.
  • If the water pH is high it will cause scaling on the membrane and lower the efficiency of the membrane.

Dissolved carbon dioxide in borehole water.

  • Dissolved carbon dioxide in water increases as the pH value of the borehole water.
  • The Reverse Osmosis membrane cannot filter out dissolved CO2; it can eliminate the alkalinity in the water.
  • Therefore the pH value of the water that flow through is higher than the feed water and the pH value of the concentrate or waste water is higher.

 





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  • The pH of water indicates whether water is acidic or alkaline.
  • A pH = 7 is neutral, while values < 7 is progressively more acidic and values > 7 is progressively more alkaline.
  • The pH of water does not have direct consequences except at extremes.
  • It largely determines the solubility and availability of many plant nutrients and potentially toxic ions.
  • Soil is much more strongly buffered against changes in pH than is water.
  • Except in extreme conditions irrigation water will cause soil pH to change slowly with time and does not present a problem in itself over the short term.
  • Extreme pH conditions in irrigation water can be corrosive or scale-forming to some of the components used in irrigation equipment.