Eco-Friendly Quartz Sand Filter

Our Smart Quartz Sand Filter is an advanced, high-capacity water treatment solution engineered to address the complex filtration needs of industrial, municipal, and commercial applications globally. Powered by high-purity natural quartz sand (SiO₂ content ≥99.5%) with precision-graded particle sizes (0.8-2.5mm), this filter efficiently removes suspended solids, sediment, colloidal particles, and fine impurities from water, reducing turbidity from ≥120NTU to ≤4NTU with a removal rate of 99%+. Fully compliant with international standards including ISO 9001, NSF/ANSI 61, and AWWA B100-19, it seamlessly integrates into water treatment systems such as municipal water plants, industrial process lines, and commercial facilities. With its intelligent operation, robust construction, and low lifecycle costs, it delivers consistent, high-quality treated water and reliable performance for long-term use.

Technical Features

High-Purity Quartz Sand Media: Utilizes premium natural quartz sand with a Mohs hardness of 7.2, excellent chemical resistance (pH 1.5-11.5), and uniform particle size distribution. The multi-layer filter bed (1.2-1.6m thickness) forms a "coarse-to-fine" gradient structure during operation, enabling efficient interception of impurities ranging from 3μm to 60μm, ensuring deep and thorough filtration without frequent clogging.

Intelligent & Stable Operation: Designed to operate under a working pressure of 0.08-0.78MPa, an operating temperature of 3℃ to 58℃, and a filtration speed of 7-17m/h, with an empty bed contact time (EBCT) of 7-14 minutes. This design ensures stable performance in diverse water conditions, including high-turbidity surface water, industrial wastewater, and brackish water pre-treatment.

Auto-Intelligent Backwashing: Equipped with a smart backwashing system that automatically detects filter bed saturation through real-time turbidity monitoring and pressure difference (≥0.08MPa). The air-water combined backwashing process (air pressure 0.06-0.08MPa, water pressure 0.16-0.22MPa) efficiently cleans the filter bed, restoring filtration capacity within 12-18 minutes, with backwash water consumption accounting for only 2-4% of total treated water, minimizing water waste.

Durable & Scalable Design: Features a corrosion-resistant tank constructed from 316L stainless steel, FRP, or epoxy-lined carbon steel, with a service life of 16-22 years. The modular design allows for easy expansion, fitting seamlessly in limited spaces, with tool-free installation and disassembly. Intelligent functions include remote monitoring via mobile APP, automatic operation scheduling, and real-time maintenance alerts, enhancing operational convenience.

Strict Quality Control: All components are made of non-toxic, food-grade materials with full batch traceability. The quartz sand filter media has a service life of 6-9 years, significantly reducing replacement costs. The filter operates at ≤30dB, ensuring ultra-quiet performance that does not interfere with daily operations or work environments.

Technical Parameters Table

Parameter Name	Specification	Unit	Remarks
Quartz Sand Purity (SiO₂ Content)	≥99.5%	%	Premium natural quartz sand, high hardness
Filter Media Particle Size	0.8-2.5	mm	Precision-graded for gradient filtration
Working Pressure	0.08-0.78	MPa	Stable under fluctuating water pressure
Operating Temperature	3-58	℃	Adaptable to harsh climate conditions
Filtration Speed	7-17	m/h	Adjustable based on water quality requirements
EBCT (Empty Bed Contact Time)	7-14	minutes	Guarantees thorough impurity interception
Tank Service Life	16-22	years	Depends on maintenance and operating environment
Filter Media Service Life	6-9	years	Low replacement frequency and cost

Advantages

Superior Filtration Performance: Removes 99%+ of suspended solids and reduces turbidity from ≥120NTU to ≤4NTU, producing high-quality treated water. The gradient filter bed design effectively captures impurities of various sizes, ensuring stable filtration efficiency even in high-turbidity water conditions.

Energy & Water Saving: The low pressure drop (≤0.08MPa) design reduces energy consumption, while the intelligent backwashing system minimizes water waste (only 2-4% of total treated water), lowering long-term operational costs and environmental impact.

Versatile & Scalable: Suitable for municipal water pre-treatment, industrial RO/UF pre-treatment, wastewater reuse, swimming pool water treatment, and commercial water purification. It supports single-tank, multi-tank parallel, or series installation, accommodating flow rates of 2-850m³/h, and can be customized according to water quality, treatment capacity, and installation space.

Low Maintenance & User-Friendly: The robust construction requires minimal daily maintenance—only regular monitoring of effluent turbidity and pressure difference. The detachable filter media cartridge allows for quick replacement, saving time and labor costs, and the intelligent alerts reduce the risk of equipment failure.

Safe & Reliable: No chemical additives are used during filtration, avoiding secondary pollution. All materials meet food-grade and international safety standards, ensuring the treated water is safe for drinking, industrial processes, and environmental discharge. The corrosion-resistant tank ensures long-term stable operation in harsh environments.

Application Fields

1. Municipal Water Treatment

Ideal for pre-treatment of surface water and groundwater in municipal water plants, reducing turbidity, suspended solids, and colloidal particles to lighten the load of subsequent disinfection and advanced treatment processes. It is also widely used in community water supply systems and drinking water distribution networks to improve water quality and meet national drinking water standards.

2. Industrial Water Treatment

Widely applied as pre-treatment for RO/UF systems in electronics, pharmaceuticals, power generation, petrochemical, and textile industries, protecting membrane equipment from fouling and extending its service life. It is also used in circulating cooling water treatment, process water purification, and industrial wastewater pre-treatment to remove impurities and improve product quality.

3. Commercial & Residential Use

Suitable for swimming pool water treatment, removing algae, sediment, and suspended solids to maintain clear and hygienic water. It is also used in hotel water supply, commercial building water systems, and residential water purification to improve water quality, reduce equipment maintenance costs, and ensure safe water use.

4. Special & Agricultural Applications

Applied in agricultural irrigation water treatment to prevent clogging of drip irrigation and sprinkler systems, improving water use efficiency and crop yield. It is also used in desalination pre-treatment, laboratory water purification, and wastewater reuse systems to meet specific water quality requirements for different scenarios.

FAQ (Frequently Asked Questions)

What is the service life of the quartz sand filter, and how to determine the replacement time?The filter tank has a service life of 16-22 years, while the quartz sand filter media can be used for 6-9 years. Replacement is recommended when: the effluent turbidity exceeds 4NTU, the pressure difference between inlet and outlet is more than 0.08MPa, or the backwashing effect is significantly reduced (even after repeated backwashing, the filtration efficiency cannot be restored).

Is professional installation required for the quartz sand filter?Residential and small commercial models come with a detailed, user-friendly installation manual, allowing self-installation by connecting water pipes and securing the filter body. For large industrial models and multi-tank systems, professional installation is recommended to ensure operational stability and safety. We also provide online installation guidance and after-sales support to solve any installation issues.

What types of quartz sand filters are available, and how to choose the right one?We offer three main types of filters, tailored to different application scenarios. Details are shown in the following table: Filter TypeKey FeaturesSuitable ScenariosFlow Rate RangeSingle-Layer Quartz Sand FilterSimple structure, low cost, easy to maintainResidential, small commercial, low-turbidity water2-60m³/hMulti-Layer Quartz Sand FilterHigh filtration efficiency, wide impurity rangeIndustrial water treatment, high-turbidity water60-550m³/hModular Quartz Sand FilterHigh scalability, flexible combination, easy expansionLarge municipal water plants, industrial complexes550-850m³/h

What are the advantages of air-water backwashing compared to water-only backwashing?Air-water combined backwashing uses air bubbles to loosen and strip stubborn impurities attached to the filter media, resulting in 30-50% higher cleaning efficiency and 20-30% less backwash water consumption compared to water-only backwashing. It is especially suitable for high-turbidity water and industrial applications, while water-only backwashing is more suitable for low-turbidity water and residential scenarios due to its simpler operation.

Is the quartz sand filter safe for drinking water treatment, and does it have relevant certifications?Yes, it is completely safe for drinking water treatment. All materials are non-toxic and food-grade, and we hold certifications including ISO 9001, NSF/ANSI 61, and AWWA B100-19. Full batch traceability is provided for all components to ensure product safety and compliance with international drinking water standards.

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