Do you know the role of quartz sand in sand filters?

The role of quartz sand in sand filters is a widely discussed topic. In the field of water treatment, sand filters play a crucial role, with quartz sand being irreplaceable. Let’s delve into how the efficacy of quartz sand in sand filters is manifested.

Types of Quartz Sand in Sand Filters

1. Ordinary Quartz Sand:

  • High Hardness: Ordinary quartz sand possesses high hardness, enabling it to effectively resist water pressure and friction.
  • Good Corrosion Resistance: This type of quartz sand demonstrates excellent corrosion resistance, maintaining stability in long-term water treatment.
  • High Density: Its relatively high density aids in more effectively filtering suspended particles in water.
  • High Mechanical Strength: Ordinary quartz sand maintains high mechanical strength under water flow and pressure, ensuring effective and long-lasting operation.
  • Strong Pollutant Carrying Capacity: It exhibits a strong capacity to carry pollutants, effectively capturing impurities in water.

2. Refined Acid-Washed Quartz Sand:

  • Chemical Treatment: Refined acid-washed quartz sand undergoes special chemical treatment, enhancing its filtration performance and pollution resistance.
  • Extended Usage Period: Due to refined processing, this type of quartz sand has a longer lifespan and more stable filtration effects.
  • Ideal Material: Considered an ideal material for chemical water treatment, it efficiently meets specific water quality treatment requirements.

In summary, quartz sand filter media plays a crucial role in swimming pool water treatment. Its characteristics, including high hardness, good corrosion resistance, high density, high mechanical strength, and a long usage cycle, make it an ideal filtering material, especially for capturing fine suspended particles.

Types of Quartz Sand Used in Swimming Pools

1. Particle Size Selection:

  • Fine Quartz Sand (Diameter 1-2mm): Suitable for situations requiring the filtration of tiny impurities, it efficiently captures small particles in water, although filtration speed is relatively slow.
  • Medium Quartz Sand (Diameter 2-4mm): Balances filtration performance, providing a compromise between filtration speed and effectiveness.
  • Coarse Quartz Sand (Diameter 4-8mm): Offers faster filtration speed but may not be as effective in capturing tiny impurities as fine quartz sand.

2. Replacement Cycle:

Refined quartz sand filter media used in swimming pools generally needs replacement every 2 to 3 years. Timely replacement is crucial to ensure clean water, especially when the quartz sand is enveloped by pollutants, leading to a noticeable decrease in filtration efficiency.

3. Balancing Filtration Effectiveness and Speed:

Fine quartz sand provides thorough filtration of tiny pollutants but has a relatively slow filtration speed, requiring more time to complete the process. Coarse quartz sand filters faster but may not be as effective in capturing tiny impurities. A balance between effectiveness and speed is necessary.

In conclusion, refined quartz sand filter media is an ideal choice designed specifically for swimming pool water filtration. By selecting the appropriate particle size, it can meet various water quality treatment needs. Regular replacement is essential to maintain stable filtration effects. The choice between filtration effectiveness and speed depends on specific circumstances, ensuring the cleanliness and safety of swimming pool water.

Cleaning of Quartz Sand

  1. Loading Quartz Sand:
    • Firstly, quartz sand is loaded into a specific chamber within the sand filter. This chamber is commonly referred to as the filtration sand tank.
  2. Filtration Operation:
    • When the control knob is set to the “FILTER” position, the entire filtration system begins operation. The pump is responsible for drawing pool water containing suspended microparticles into the filtration pipeline.
  3. Water Flow Guidance:
    • Pool water, under pump pressure, is guided into the filter. The control switch directs the water flow through the quartz sand layer within the filter. During this process, the water carries tiny suspended particle impurities.
  4. Filtration Effect:
    • The role of quartz sand is to capture and filter out tiny impurities as the water flows through. Due to the characteristics of quartz sand, it effectively prevents and captures suspended substances in water, including fine particles.
  5. Return of Clean Water:
    • After passing through the quartz sand filtration, clean water returns to the pool through the filter’s outlet. At this point, tiny impurities have been captured and filtered out by the sand bed, ensuring the returned pool water is clear.

The entire filtration process is a collaborative effort of the pump, filter, and quartz sand chamber. This system efficiently removes tiny impurities from pool water, ensuring the cleanliness and safety of the swimming pool. It is important to note that over time, quartz sand may become contaminated, affecting filtration efficiency. Therefore, regular inspection and replacement of quartz sand are crucial steps to maintain the stable operation of the system.

In summary, the role of quartz sand in sand filters is not only significant in water treatment but also crucial for ensuring efficient filtration of water quality. If there are any further questions or clarifications needed, feel free to contact us via email for assistance.