Does Reverse Osmosis Remove Calcium? Explained!

Water contains many minerals from the earth that harden it, leading to the formation of limescale on the faucet and other instruments. Among these minerals, calcium is an essential element.

Calcium is necessary for drinking water, but it is also responsible for the white deposits that appear in your dishes and shower. It can also damage your hair, skin, nails, and clothing when you wash them in hard water tainted with calcium.

Filtering the water is the only way to ensure that the water does not contain excessive calcium. For water purification, reverse osmosis is a great option.

So, here the question comes to mind “Does reverse osmosis remove calcium”? Well, the answer is YES! It reduces the calcium concentration in water, making it softer and more pleasant to drink and use.

For more information, please continue reading.

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Does Reverse Osmosis Remove Calcium?

When it comes to water purification, reverse osmosis filters are among the most effective. A reverse osmosis water filter has a semi-permeable membrane and several filtration stages.

So, how does reverse osmosis remove calcium? A reverse osmosis water filter removes a wide range of pollutants, including calcium.

It functions by driving water across the membrane to restrict the calcium ions and permit freshwater to flow from the other side of the membrane deposits.

Drinking water can be made safer by using reverse osmosis to remove calcium and magnesium. Reverse osmosis systems are capable of effectively eliminating 92 to 99 percent of calcium.

Does Reverse Osmosis Remove Other Contaminants?

Reverse osmosis water filters can eliminate much more than calcium from your water source due to their design. All impurities, including minerals, were removed from the drinking water supply through reverse osmosis (RO).

Additionally, a RO system removes chlorine, fluoride, radium, magnesium, and nitrate from the water supply. Moreover, this filtration system is also capable of eliminating bacteria, pesticides, herbicides, and microplastics.

Why Is It Necessary to Remove Calcium from the Water?

Why Is It Necessary to Remove Calcium from the Water

Several issues can arise when using water that has a high calcium percentage. Some of the most prevalent reasons for eliminating calcium from water are as follows:

1. Laundry Issues

Calcium in the water interferes with the components in your washing detergent, preventing it from doing its job. Many laundry issues arise as a result.

  • Stiff fabric
  • White streaks on colored clothing
  • The gradual fading of dark-colored fabrics

2. Damages Hair, Nails, and skin

Calcium is a necessary mineral for human growth and development. It has a significant impact on both hair growth and skin freshness.

However, because hard water contains a high mineral content of calcium and magnesium, prolonged exposure can harm your skin, hair, and nails by making them fragile, rough, and unappealing.

3. Plumbing Issues

Clogging occurs when calcium and other minerals mix. In drains and pipes, calcite deposits are to blame for the buildup of excessive mineral content. Thus, corrosion and obstructions in drainage systems could result if this calcium isn’t dealt with on time.

4. Flaky Spots on Dishes

Another side effect of water that is excessively rich in calcium is the formation of white stains on plates. Thin white streaks may appear on the dishes after they have been washed. The presence of these stains is due to the high calcium concentration in the water.

5. LimeScale Deposition

One of the most common causes of scale buildup in plumbing systems is calcium carbonate. It leaves a chalky film on your utensils, appliances, and faucet.

That’s why it is necessary to remove calcium from hard water to maintain machinery and utensils.

6. Ruin the Food Taste

The taste, texture, and appearance of food are influenced by water with the high calcium content.

Water usually contains chlorine, which, when combined with calcium, forms calcium chlorides. Different molecules react with one other at various temperatures, and this causes food to have an odd taste.

Drawbacks of RO Filtration System

There are various benefits of reverse osmosis water filters, but there are also some drawbacks to consider. Among these are:

1- Removes Minerals That Are Beneficial To Health

The removal of specific impurities is not the emphasis of reverse osmosis water treatment. It eliminates all of them. As a result, the water we drink has a bland flavor.

2- A lot of Water Wastage

Although reverse osmosis (RO) systems are the most effective at removing impurities from water, they waste a significant amount of water in the process.

For every gallon of purified water generated by a RO system, an average of four gallons of water is wasted.

3- Needs Regular Maintenance

There are usually three to four stages of filtration in a RO system. Depending on the filter it possesses, it can last from six months to a year. On the other hand, it also features an RO membrane which can last up to two years.

For the system to function correctly, you’ll need to track when the filters need to be changed.

4- Pricey

Compared to other calcium water filters, reverse osmosis systems are more expensive. Because the price of a RO system usually reflects its quality, it’s worth spending a little extra on the RO water filter.

Other Ways to Remove Calcium from Tap Water

In addition to RO systems, calcium can be removed by the following:

  •      Chemical Processes
  •      Water Softening Agents
  •      Boiling

1. Chemical Processes

To remove calcium from water, sodium carbonate, or washing soda, can be used. Calcium is dissolved and eliminated from the water supply when this is added to hard water.

Additionally, this technique is used to extract magnesium from water.

2. Water Softening Agents

A water softener simulates the effects of chemical treatment without adding potentially harmful chemicals into your water. By substituting calcium and magnesium with sodium, it modifies the chemistry of water.

Following that, the water softener removes calcium from the supply. The outcome is water that is clean, pure, and pleasant.

3. Boiling

Boiling is a simple process for removing calcium from the water. But on a bigger scale, it’s not very effective at all.

Heat is commonly used to remove minerals such as calcium and other contaminants from water. Calcium traces and other pollutants will sink to the bottom of your container, where they may be readily removed using a strainer.

Final Thoughts

Without a doubt, the RO-treated water is pure, clean, and safe to drink. It is the only technique that can remove most pollutants, including calcium.

Even though calcium is good for our health, its high concentration in water can have a detrimental effect on our skin and hair, as well as our plumbing. Thus, the removal of calcium from water is essential.

In the end, we hope you get the answer to your query,” Does reverse osmosis removes calcium?” So, it is possible to extract calcium from water using reverse osmosis technology.

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