Hydroxyapatite works on the principle of ion exchange. Here's a step-by-step explanation:

1. Hydroxyapatite is a naturally occurring mineral form of calcium apatite, mainly composed of calcium phosphate. It is the primary form of calcium found in bovine milk and bones.

2. In the context of water purification, hydroxyapatite is used as an ion exchanger. Ion exchange is a process where unwanted dissolved ions are replaced with other ions with a similar charge.

3. When water passes through hydroxyapatite, the calcium ions in the hydroxyapatite are replaced by heavy metal ions in the water (like lead or copper). This is because these heavy metal ions have a stronger affinity for the phosphate groups in the hydroxyapatite than calcium does.

4. The heavy metal ions are thus removed from the water and are 'trapped' in the hydroxyapatite, effectively purifying the water.

5. Over time, the hydroxyapatite will become saturated with these heavy metal ions and will need to be replaced.

So, the principle at work here is ion exchange.

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Hydroxyapatite works on the principle of ion exchange. Here's a step-by-step explanation:

1. Hydroxyapatite is a naturally occurring mineral form of calcium apatite, mainly composed of calcium phosphate. It is the primary form of calcium found in bovine milk and bones.

2. In the context of water purification, hydroxyapatite is used as an ion exchanger. Ion exchange is a process where unwanted dissolved ions are replaced with other ions with a similar charge.

3. When water passes through hydroxyapatite, the calcium ions in the hydroxyapatite are replaced by heavy metal ions in the water (like lead or copper). This is because these heavy metal ions have a stronger affinity for the phosphate groups in the hydroxyapatite than calcium does.

4. The heavy metal ions are thus removed from the water and are 'trapped' in the hydroxyapatite, effectively purifying the water.

5. Over time, the hydroxyapatite will become saturated with these heavy metal ions and will need to be replaced.

So, the principle at work here is ion exchange.

Knowee AI · Accepted Answer

Hydroxyapatite works on the principle of ion exchange. Here's a step-by-step explanation:

1. Hydroxyapatite is a naturally occurring mineral form of calcium apatite, mainly composed of calcium phosphate. It is the primary form of calcium found in bovine milk and bones.

2. In the context of water purification, hydroxyapatite is used as an ion exchanger. Ion exchange is a process where unwanted dissolved ions are replaced with other ions with a similar charge.

3. When water passes through hydroxyapatite, the calcium ions in the hydroxyapatite are replaced by heavy metal ions in the water (like lead or copper). This is because these heavy metal ions have a stronger affinity for the phosphate groups in the hydroxyapatite than calcium does.

4. The heavy metal ions are thus removed from the water and are 'trapped' in the hydroxyapatite, effectively purifying the water.

5. Over time, the hydroxyapatite will become saturated with these heavy metal ions and will need to be replaced.

So, the principle at work here is ion exchange.

Hydroxyapatite works on the principle of2 pointsion exchangeion displacemention additionion removal

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