Quartz sand filter

Effectively remove suspended solids, colloids, and sediment from water.
Low equipment cost and operation and maintenance expenses
Equipped with automatic control function, it can achieve automatic backwashing
Quartz sand has strong wear resistance, good chemical stability, and long service life

Specification
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Specification

KYsearo’s quartz sand filter is a highly efficient water treatment device utilizing quartz sand as its filtration medium. It is widely applied to remove suspended solids, colloids, silt, organic matter, and other impurities from water. Its core advantages include low filtration resistance, strong contaminant retention capacity, and low-cost, environmentally friendly, renewable filter media. Through multi-layer media combinations and optimized design, quartz sand filters significantly reduce water turbidity, providing reliable pretreatment assurance for subsequent fine filtration systems (e.g., reverse osmosis, ion exchange).

Parameter Details

Working Pressure: ≤0.6MPa
Inlet Pressure: ≥0.04MPa
Filtration Rate: 15–20m/h
Backwash Intensity: 4–15L/s·m²
Backwash Cycle: 2–7 day
Operating Temperature: 5–60°C

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Quartz sand filter diagram

Quartz Sand Filter Models

نموذج	Dia	Tank height	Total height	Flow rate	Quartz sand	Activate carbon	Resin
3696	φ900	2060	2400	8.0-12	25	17	30
4096	φ1000	2065	2400	15-20	30	20	36
4872	φ1200	1680	1850	20-40	32	21	38
4896	φ1200	2080	2400	20-40	42	28	50
6096	φ1500	2060	2400	30-50	61	41	72
7296	φ1800	2095	2400	40-60	83	55	98
8096	φ2000	2103	2400	50-80	100	67	118

How does quartz sand filter work?

Quartz sand filters operate on the principle of physical filtration. Raw water flows downward through the quartz sand bed under pressure, effectively removing suspended particles and contaminants through interception, sedimentation, and adsorption. During operation, the filter bed automatically forms a loose upper layer and dense lower layer distribution, ensuring stable effluent quality under varying conditions. When the filter bed becomes saturated or pressure differential increases, the equipment can utilize its backwashing function to remove trapped impurities and restore filtration efficiency.

What is the quartz sand filter usage in water treatment systems?

As a highly efficient and economical water treatment device, the quartz sand filter relies on quartz sand media of varying particle sizes to effectively remove suspended solids, colloids, silt, algae, and even some microorganisms and organic matter from water through physical mechanisms such as sieving, sedimentation, and adsorption, significantly reducing water turbidity. They play vital roles across various water treatment sectors:

In municipal drinking water treatment, serving as a critical component of the “coagulation-sedimentation-filtration” process, they ensure effluent turbidity meets regulatory standards.

In industrial applications, they are widely used for circulating cooling water purification and boiler feedwater pretreatment. Crucially, they function as pre-treatment barriers for precision systems like reverse osmosis (RO) and ion exchange, preventing clogging and contamination of downstream equipment.

In wastewater treatment and reuse, it is commonly employed for deep filtration after secondary biological treatment, further enhancing effluent quality to enable water resource recovery.

For swimming pool water treatment, it serves as the core circulation filtration unit maintaining clear and hygienic water quality.

Notably, in seawater desalination, quartz sand filters serve as indispensable pre-treatment equipment. They effectively remove suspended solids, algae, and other impurities from seawater, supplying high-quality feedwater to subsequent reverse osmosis membranes or distillation units. This prevents membrane fouling and ensures stable, efficient operation of the entire desalination system. Their filter media exhibit excellent chemical stability, high mechanical strength, strong contaminant retention capacity, and superior backwash recovery performance. Consequently, they adapt to diverse complex water qualities, demonstrating robust adaptability and reliability in drinking water, industrial water, wastewater, and seawater pretreatment applications.

How to choose the material base on your needs?

Quartz sand filter tanks are available in various materials to accommodate different operating environments, water quality requirements, and budget constraints. The table below summarizes the characteristics of mainstream materials for quick comparison.

Material Type	Key Features	Typical Applications
Stainless Steel	Excellent corrosion resistance, aesthetically pleasing appearance, high sanitary standards, relatively higher initial investment	Food and beverage, pharmaceuticals, cosmetics, and other industries with stringent hygiene requirements
Carbon Steel	Robust structure, high pressure resistance, lower cost, but requires strict internal anti-corrosion treatment (e.g., rubber lining, epoxy coating) to prevent corrosion	Industrial water treatment, large-scale circulating water systems, suitable for high-volume water processing where material aesthetics are less critical
Fiberglass Reinforced Plastic (FRP)	Lightweight yet high-strength, exceptional corrosion resistance, rust-free, easy to form, convenient for transportation and installation	Suitable for corrosive environments or space-constrained applications like chemical processing, metallurgy, seawater desalination, and outdoor installations

Material Selection Considerations

When choosing filter materials, we recommend comprehensively evaluating the following factors:

Water Quality Characteristics: This is the primary factor. For highly corrosive water (e.g., acidic, alkaline, or high chloride content), stainless steel or FRP are typically safer choices. For standard municipal tap water or neutral wastewater, carbon steel with compliant anti-corrosion treatment offers an economical solution.
Operating Environment: Will the equipment be installed indoors or outdoors? Humid or exposed environments accelerate corrosion of carbon steel equipment, even with protective coatings. In such cases, the durability advantages of stainless steel or fiberglass become more pronounced.
Budget and Lifespan: Balance initial investment with long-term operational and maintenance costs. While carbon steel equipment is cheaper upfront, damage to its anti-corrosion layer can lead to higher maintenance expenses and increased downtime risks. Stainless steel و FRP involve higher upfront costs, but their superior corrosion resistance may result in lower overall lifecycle expenses.

What are the features of quartz sand filter?

1. High-Efficiency Filtration and Stable Operation

High-Precision Filtration: When inlet turbidity ≤20 FTU, outlet turbidity can be reduced to ≤3 FTU, with suspended solids removal exceeding 90%.
Adaptive Filter Bed: Filter media automatically redistributes during operation to accommodate raw water quality fluctuations, ensuring long-term stable performance.
High-Flow Processing: Filtration velocity reaches 15–20 m/h, with single-unit capacity ranging from 1.5–100 m³/h (depending on model).

2. Energy Efficiency, Environmental Protection, and Operational Convenience

Low Backwash Water Consumption: Backwash water usage accounts for only 1–3% of treated water output. Supports water-only or air-water mixed backwash modes for energy-efficient operation.
Automated Control: Optional PLC control system enables differential pressure-triggered or timed backwashing, minimizing manual intervention.
Long-Life Filter Media: Quartz sand resists acids, alkalis, and oxidation (pH range 2–13), with replacement cycles extending to 3–5 years under normal operation.

3. Flexible Design and Durable Construction

Multi-Material Tanks: Available in carbon steel (with anti-corrosion lining), stainless steel, or fiberglass reinforced plastic (FRP) to suit diverse environmental requirements.
Compact Structure: Tank diameters range from 400–3600mm, with customization available to meet on-site space constraints.
Low Differential Pressure Operation: Working pressure ≤0.6MPa, with typical inlet/outlet differential pressure of only 0.01–0.015MPa, ensuring low energy consumption.

What are the application of quartz sand filter?

Quartz sand filters serve as an ideal pretreatment solution for the following scenarios:

Industrial Water Treatment: Pretreatment of process water and purification of circulating cooling water in power generation, petroleum, chemical, metallurgical, and related industries.
Municipal & Drinking Water: Purification of domestic water and tap water plant turbidity, achieving drinking water standards.
Environmental Protection & Reuse: Removal of suspended solids in wastewater advanced treatment and reclaimed water reuse systems.
Special Applications: Swimming pool recirculating water treatment, pre-treatment for food and beverage industry water, and pre-protection for reverse osmosis/ion exchange systems.

What support we offer?

We offer full model coverage of quartz sand filters, recommending specifications based on flow rate and media characteristics. Custom solutions are available, along with installation guidance, operational training, and lifetime maintenance services. All equipment undergoes rigorous factory testing to ensure rapid integration into existing water treatment systems upon arrival.

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