Cost-Effective Quartz Sand Filter

Our Quartz Sand Filter is a high-efficiency, cost-effective water treatment solution designed to meet the diverse needs of global markets. Powered by premium natural quartz sand (SiO₂ content ≥99.3%) with precise particle size grading (0.5-2.0mm), our filter effectively removes suspended solids, sediment, colloids, and other impurities from water, reducing turbidity from ≥100NTU to ≤5NTU with a removal rate of 98.7%+. Fully compliant with international standards such as ISO 9001, CJ/T 43-2005, and NSF/ANSI 61, it integrates seamlessly into municipal water plants, industrial facilities, and residential complexes worldwide. With its robust design, simple operation, and minimal maintenance requirements, it delivers consistent, reliable water purification and long-term value for users across the globe.

Technical Features

Premium Quartz Sand Filter Media: Adopts high-purity natural quartz sand with a hardness of 7 Mohs, chemical stability (pH 2-11), and uniform particle size distribution. The multi-layered filter bed (1.0-1.5m thickness) forms an "上疏下密" structure during operation, ensuring efficient interception of impurities of different sizes, from large sediment to fine colloids.

Stable & Adaptable Operation: Designed to operate under a working pressure of 0.07-0.75MPa, an operating temperature of 2℃ to 55℃, and a filtration speed of 8-18m/h, with an empty bed contact time (EBCT) of 8-15 minutes. This design ensures stable performance in diverse water conditions, from high-turbidity surface water to industrial process water.

Intelligent Backwashing System: Equipped with an automatic backwashing system that intelligently detects filter bed saturation (via real-time turbidity monitoring and pressure difference ≥0.07MPa) and initiates backwashing. The air-water combined backwashing (air pressure 0.05-0.07MPa, water pressure 0.15-0.2MPa) thoroughly cleans the filter bed, restoring filtration capacity within 15-20 minutes, with a backwash water consumption of only 3-5% of the total treated water.

Robust & Modular Design: Features a corrosion-resistant tank made of 304/316L stainless steel, FRP, or rubber-lined carbon steel, with a service life of 15-20 years. The compact, modular structure fits easily in limited spaces, with tool-free installation and disassembly. Optional intelligent functions include remote monitoring via mobile APP, automatic operation scheduling, and maintenance alerts, providing convenient operation and peace of mind.

Rigorous Quality Assurance: All components are made of non-toxic, food-grade materials with complete batch traceability. The quartz sand filter media has a service life of 5-8 years, with minimal replacement costs. The filter operates at ≤32dB, ensuring ultra-quiet operation that won't disrupt daily life or work.

Technical Parameters Table

Parameter Name	Specification	Unit	Remarks
Quartz Sand Purity (SiO₂ Content)	≥99.3%	%	High-purity natural quartz sand
Filter Media Particle Size	0.5-2.0	mm	Multi-layer graded for optimal filtration
Working Pressure	0.07-0.75	MPa	Stable under varying water pressure conditions
Operating Temperature	2-55	℃	Adaptable to diverse climates
Filtration Speed	8-18	m/h	Adjustable for specific water conditions
EBCT (Empty Bed Contact Time)	8-15	minutes	Ensures thorough impurity removal
Tank Service Life	15-20	years	Depends on maintenance and environment
Filter Media Service Life	5-8	years	Minimal replacement costs

Advantages

High Filtration Efficiency: Removes 98.7%+ of suspended solids and reduces turbidity from ≥100NTU to ≤5NTU, ensuring high-quality treated water. The multi-layer graded filter bed effectively intercepts impurities of different sizes, from 5μm to 50μm, without clogging easily.

Cost-Effective Operation: The low-cost quartz sand filter media and minimal energy consumption (pressure drop ≤0.07MPa) reduce long-term operational costs. The automatic backwashing system minimizes water waste, making it an economical choice for all scales of water treatment.

Versatile & Customizable: Suitable for municipal water treatment, industrial pre-treatment (RO/UF systems), wastewater reuse, swimming pool water, and landscape water treatment. It supports single-tank or multi-tank parallel installation, accommodating flow rates of 1-800m³/h, and can be customized for specific water conditions, treatment capacity, and installation space.

Low Maintenance & User-Friendly: The robust design requires minimal daily maintenance—only regular monitoring of effluent quality and pressure. The removable filter media cartridge enables quick replacement, saving time and labor costs.

Safe & Eco-Friendly: No chemical additives are used, preventing secondary pollution. All materials are food-grade and meet international safety standards, ensuring the treated water is safe for drinking, industrial use, and environmental discharge.

Application Fields

1. Municipal Water Treatment

Ideal for surface water pre-treatment in water plants to reduce turbidity and suspended solids, reducing the load of subsequent disinfection and membrane treatment. It is also used in community water supply systems to improve water quality and ensure compliance with drinking water standards.

2. Industrial Water Treatment

Widely used in RO/UF system pre-treatment for electronics, pharmaceuticals, power plants, and chemical industries to protect membrane equipment from fouling and extend service life. It is also applied in circulating water treatment, cooling water filtration, and process water purification to remove impurities and improve product quality.

3. Residential & Commercial Use

Applied in swimming pool water treatment to remove algae, sediment, and suspended solids, maintaining clear and clean water. It is also used in landscape water treatment, hotel water supply, and commercial building water systems to improve water quality and reduce maintenance costs.

4. Agricultural & Special Applications

Suitable for agricultural irrigation water treatment to prevent drip irrigation nozzles from clogging, improving water use efficiency. It is also used in wastewater reuse systems, desalination pre-treatment, and laboratory water purification to meet specific water quality requirements.

FAQ (Frequently Asked Questions)

What is the service life of the quartz sand filter, and how to judge the replacement time?The filter tank has a service life of 15-20 years, while the quartz sand filter media can be used for 5-8 years. You can judge the replacement time by the following signs: the filtered water turbidity exceeds 5NTU, the pressure difference between the inlet and outlet is more than 0.07MPa, or the backwashing effect is significantly reduced.

Is professional installation required for the quartz sand filter?Residential and small commercial models are equipped with a detailed, easy-to-follow installation manual, and you can complete the installation by yourself by connecting water pipes and fixing the filter body. For large industrial models, we recommend professional installation to ensure the stability and safety of the equipment during operation. We also provide online installation guidance and after-sales service to solve your installation problems.

What types of quartz sand filters are available, and how to choose?We provide three main types of filters, which can be selected according to your specific needs. The details are shown in the following table: Filter TypeKey FeaturesSuitable ScenariosFlow Rate RangeSingle-Layer Quartz Sand FilterSimple structure, low cost, easy maintenanceResidential, small commercial, low turbidity water1-50m³/hMulti-Layer Quartz Sand FilterHigh filtration efficiency, wide particle size rangeIndustrial water treatment, high turbidity water50-500m³/hModular Quartz Sand FilterScalable, flexible, easy to expandLarge municipal water plants, industrial complexes500-800m³/h

What is the difference between air-water backwashing and water-only backwashing?Air-water combined backwashing is more effective for removing stubborn impurities and reducing backwash water consumption by 30-50% compared to water-only backwashing. It is recommended for high-turbidity water and industrial applications, while water-only backwashing is suitable for low-turbidity water and residential use.

Is the quartz sand filter safe for drinking water, and does it have certifications?Yes, all materials are food-grade and non-toxic. We hold ISO 9001, CJ/T 43-2005, and NSF/ANSI 61 certifications, with full batch traceability to ensure safety and compliance with international drinking water standards.

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