Calcite Limestone in Water Treatment: A pH Neutralising Marvel





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Calcite Limestone in Water Treatment: A pH Neutralising Marvel

Water treatment is a crucial process that ensures the supply of clean and safe water. One of the key challenges in water treatment is maintaining the pH balance. pH, which stands for "potential of hydrogen," is a measure of the acidity or alkalinity of a solution. When water becomes too acidic or alkaline, it can have detrimental effects on both human health and the environment. In this blog post, we will explore the remarkable properties of calcite limestone, a natural mineral that plays a vital role in pH neutralising during water treatment.

The Role of Calcite Limestone in pH Neutralising

Calcite limestone, also known as calcium carbonate, is a sedimentary rock formed from the remains of marine organisms. It is widely used in water treatment facilities to neutralize the pH of acidic water sources. The process involves passing water through a bed of crushed calcite limestone, allowing the mineral to dissolve and raise the pH to a more neutral level.

The magic lies in the chemical composition of calcite limestone. It contains high levels of calcium carbonate, which acts as a natural buffer to regulate pH levels. When acidic water comes into contact with calcite limestone, the calcium carbonate reacts with the excess hydrogen ions, effectively neutralising the acidity. This reaction results in the release of carbon dioxide gas and the formation of calcium bicarbonate, a compound that is less corrosive and has a more balanced pH.

Benefits of Using Calcite Limestone in Water Treatment

  1. pH Stabilization: Calcite limestone provides a cost-effective and efficient solution for stabilizing pH levels in water treatment processes. By neutralising acidity, it helps prevent corrosion in pipes, plumbing fixtures, and equipment, prolonging their lifespan and reducing maintenance costs.
  2. Environmental Friendliness: Unlike chemical additives, which can introduce harmful substances into the water supply, calcite limestone is a natural and environmentally friendly option. It does not introduce any additional chemicals or contaminants into the water and, therefore, maintains its purity.
  3. Sustainable Solution: Calcite limestone is a renewable resource that can be mined sustainably. Its abundance and widespread availability make it a reliable and long-term solution for pH neutralising in water treatment. Additionally, it can be easily replaced or replenished, ensuring a continuous supply for future generations.

Calcite limestone is a true marvel in the field of water treatment. Its ability to neutralize pH levels and stabilize water quality is invaluable. By harnessing the power of this natural mineral, water treatment facilities can ensure the delivery of safe and clean water to communities. The use of calcite limestone not only improves the efficiency of the treatment process but also contributes to environmental sustainability. As we continue to prioritize the preservation of our precious water resources, calcite limestone will undoubtedly remain a cornerstone in pH neutralising for years to come.


Viet Nam Technology Mineral JSC is a trusted manufacturer and exporter of Limestone with 10-year experience. We can produce Limestone in different sizes (coarse, powder, granular) with high purity (min 98.5% calcium carbonate)for different application, especially for water treatment.


Contact us: 
VIET NAM TECHNOLOGY MINERALS JSC - SHC GROUPMr. Steve Dam (International Sales Dept)
Phone/ WhatsApp/ Skype: +84 93 618 1398




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