The distinction between a horizontal and a vertical sand filter | DamaTajhiz

The passage of water through multiple layers of sand and other stones, such as quartz, was one of the numerous techniques employed in the past to remove impurities and suspended particles from water. They also made an attempt to add some stones to the streams to act as a natural filter. However, as a result of the wide-ranging adjustments and transformations that different industries have discovered, today's sand filter equipment is designed and produced. By employing the same old technique, this equipment successfully completes the physical filtration of water—the first step in raising the water's quality. In order to physically purify water and avoid pool and jacuzzi water wasting, sand filters are typically employed in several industries, water parks, public and private swimming pools, etc. The health of people is said to depend on the water in hot tubs and swimming pools being purified. Water that is contaminated and dirty can seriously harm a person's body (resulting in skin conditions, for example). As a result, water purification filters are crucial to raising the level of human health, the quality of the water, and other factors. This is accomplished by utilising a variety of procedures, including chemical and physical approaches. The growth and proliferation of microbes, microbial fungi, and parasite eggs in the water are caused by stagnant, polluted water that, in the worst case scenario, may result in diseases like jaundice, enteric fever, dysentery, skin diseases, and... The usage of sand filters, which are created and manufactured in a variety of forms with varied capacities, is one of the traditional and widely used methods for physically purifying water. The vertical and horizontal sand filters are two of the different varieties of these filters; this page discusses the distinctions between the two. Please read the article through to the conclusion if you want to learn more about the design, functionality, applications, benefits, and drawbacks of these filters.

Definition of a sand filter

Although there are many different types of pool and jacuzzi filters available, this article will focus on vertical and horizontal sand filters. To begin, let's define a sand filter. Sand filters are tanks made of steel, galvanized sheet, or fibreglass (FRP), which are typically made in a cylindrical shape and carry out the filtration process over a bed of fine sand (silica), absorbing and removing suspended particles in water. Sand filters produce clean, translucent water that is suitable for a variety of uses. This is especially true when chlorine pills or powder are used in pool water.

How do sand filters work properly?

The sand filter's outlet eventually releases clean, purified water because suspended particles and impurities in the water, such as mud, insects, etc., cannot pass through the sand (silica) grains-filled filter. going outside. Sand filters' primary function is to flow water through silica and nozzles while producing clear, clean water. The sand filter can remove suspended particles larger than 50 microns using the physical water filtration process. The passing flow experiences a significant pressure reduction when suspended particles and contaminants accumulate between the layers of silica, necessitating the cleaning and reviving of the sand filters. Cleaning the sand surface in the filter is quite easy and only requires directing the water flow. reversing (back washing) and sending the waste to the sewer. Water is purified using vertical sand filters when the water's flow rate is less than 80 cubic metres per hour. Additionally, they are employed in industrial settings for the treatment of urban and industrial wastewater, water in fish breeding ponds, etc. Since light and heavy industrial water purification devices are more suited to vertical sand filter models, vertical sand filters account for the majority of sand filter production.

Where is sand filtration used more frequently?

The following can be listed as sand filters' uses.

• Swimming pool and hot tub water
• Cleanup of surface water (from a river or well) in fish breeding ponds
• conditioning of the cooling tower returns water
• facilities for treating both human and industrial wastewater
• And ...

Vertical sand filters

Vertical sand filters have a steel or steel cylindrical tank that is positioned vertically (standing) on the ground, and the bottom of these tanks is welded to the lens. Silica sand is used in them to physically purify the water. Water can be purified using vertical sand filters, which come in quick (gravity), slow (slow), and pressurised varieties. Although purification with an upward flow is also possible, purification with a downward flow is the most typical method used in them. water physical purification. Because vertical sand filters are less effective and efficient at higher heights, the maximum height typically taken into consideration for their construction is 1.5 meters. It should be noted, however, that the height of the vertical sand filter depends on the intended capacity. Additionally, the flow of water will vary in size. Water is purified using vertical sand filters when the water's flow rate is less than 80 cubic meters per hour. Additionally, they are used in industrial applications like the treatment of urban water, fish breeding ponds, and industrial wastewater. The majority of sand filters are produced as vertical types because they are more appropriate for use in both light and heavy industrial water purification equipment.

Horizontal sand filters

The term "horizontal sand filter" refers to an additional type of sand filter that is positioned on the earth's surface horizontally and receives water at low pressure. As they require a lot of space to be set up on the ground and have a limited height, horizontal sand filters are ideal for spaces like these. The water is purified in the best possible way by their tanks, which are often composed of steel, galvanised sheets, etc., thanks to the silica's larger grains. Horizontal sand filters are typically utilised in industrial water treatment facilities with high scale and capacity as well as in urban water treatment plants with medium scale. It is typically more cost-effective to utilise a horizontal sand filter when the necessary water flow exceeds 80 cubic metres per hour. A horizontal sand filter is referred to as a single-media horizontal sand filter if it is simply filled with silica, and a dual-media horizontal sand filter if it contains two substrates (such as silica and garnet or silica and anthracite). Furthermore, these filters are known as Multi-Media Horizontal Sand Filters if they contain three or more layers (silica, garnet, anthracite, silica, garnet, and active carbon).

Dimensional capacity estimations for horizontal and vertical sand filters

The linear speed of circulating water must be taken into account while designing and engineering the sand filter, and it is one of the most critical variables. The standard assumption for the linear speed of circulating water in a pool is a speed of 20 meters per hour. A factor in these calculations is the type of pool, specifically whether it is public or private. The purifying procedure is estimated to take 3 to 8 hours to complete. Consider a private pool with a 100 cubic meters volume as an example. In this situation, the entire pool's water needs to be filtered for at least five hours. 20 meters are therefore required. A sand filter should be used to filter the cube per hour. You can determine the necessary dimensions of the sand filter by taking these factors into account and using engineering tables.

the conclusion

Vertical sand filters are typically used for light and semi-light water capacity, but horizontal sand filters are more appropriate for cleaning water of very high size and volume. A horizontal sand filter can be used in settings where the ceiling height is low, while a less-heavy vertical sand filter can be used in settings where there are no height constraints or no ceiling height restrictions. The water flow rate is another distinction between them. Vertical sand filters are preferable if the flow rate is less than 80 cubic meters per hour and horizontal sand filters are preferable if the flow rate exceeds 80 cubic meters per hour.

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Final speech

The first and most reputable company in the nation in the area of building facilities equipment and all air conditioning devices, the specialised collection of Damatajhiz HVAC Group, provides you with all varieties of sand filters as well as hundreds of other products, all of which are original, have a valid warranty, and are reasonably priced. Additionally, you can get free guidance from the experts in heating equipment if you have any concerns about selecting and contrasting the brands of this product.

Since 2004, DamaTajhiz HVAC Group has been Iran's first and most well-known specialised organisation in the field of air conditioners, air installation equipment, and all equipment for swimming pools, saunas, and jacuzzis. Use this group's period as a reference. Call +98 21 88822550 to speak with the specialists at DamaTajhiz HVAC Engineering and Production Company for more information.

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