Quartz Sand Filter

The Quartz Sand Filter, also known as a Shallow Media Filter or Mechanical Filter, is a classic and widely used physical filtration device in the water treatment industry. 

Corely equipped with high-purity refined quartz sand as the filtration medium, it leverages the quartz sand’s advantages of high Mohs hardness (7), excellent chemical stability, and uniform pore distribution. Under controlled pressure, raw water penetrates the filter media layer, achieving efficient removal of suspended solids, sediment, rust, colloids, and fine particles through physical interception, adsorption, and sieving. The effluent turbidity can bestably controlled within 1 NTU.

With a compact structure, stable operation, and cost-effective design, this filter serves two core functions: it acts as a preprocessing unit for reverse osmosis (RO), ultrafiltration (UF), and ion exchange equipment to protect core membrane components and fillers from wear and clogging; it also directly purifies surface water, groundwater, circulating water, and reclaimed water. As an essential filtration equipment for municipal, industrial, agricultural, and civil water projects, it is the optimal choice for medium and small-scale water treatment projects seeking high cost-performance.

Technical Features

Our Quartz Sand Filter integrates mature filtration technology with user-centric design, balancing filtration efficiency, operational stability, and maintenance convenience. Key technical features include:

High-Purity Quartz Sand Media Configuration: Adopts high-purity refined quartz sand with stable chemical properties, no secondary pollution, and wear resistance. The media is packed in an upper-coarser-lower-finer gradient to form a loose-top and dense-bottom filter layer, enabling large dirt retention capacity and low filtration resistance.

Multi-Material Tank Optional: Tanks are available in three mainstream materials—anti-corrosion carbon steel, fiberglass, and 304/316L stainless steel. The thickened tank boasts superior pressure resistance, acid/alkali corrosion resistance, and anti-aging performance, adapting to neutral, weakly acidic, and weakly alkaline water quality. Vertical models suit most sites, while horizontal custom models offer flexible installation layout.

Dual Control Modes (Intelligent/Manual): Supports fully automatic PLC control and manual operation. The automatic mode enables backwashing triggered by pressure difference, timing backwashing, and automatic sewage discharge without on-site personnel supervision, with visual operating parameters and automatic fault alarm. The manual mode is simple to operate, ideal for small-scale water treatment projects with budget constraints.

High-Efficiency & Low-Consumption Design: Optimized water distribution and collection systems ensure uniform water flow without dead ends, achieving fast filtration speed and stable treatment flow. Backwashing water consumption and energy consumption are low, and the filter media has strong durability—only regular supplementation is required without frequent replacement.

Standard + Custom Compatibility: Equipped with multiple standardized mass-produced models to meet conventional flow and water quality filtration needs. Customized tank specifications, media particle sizes, and control modes are available based on client-specific treatment capacity, water quality indicators, installation space, and automation requirements, adapting to all non-standard water treatment working conditions.

Core Technical Parameter Table

Model	Treatment Capacity (m³/h)	Filtration Precision (μm)	Working Pressure (MPa)	Tank Material	Suitable Water Temperature (℃)
QSF-5	5	10-20	0.2-0.6	Anti-corrosion Carbon Steel/Fiberglass	5-45
QSF-10	10	10-20	0.2-0.6	Anti-corrosion Carbon Steel/Fiberglass	5-45
QSF-20	20	5-15	0.2-0.6	304 Stainless Steel/Anti-corrosion Carbon Steel	5-45
QSF-50	50	5-15	0.2-0.6	304/316L Stainless Steel	5-45
Customized	Above 50	Customized	0.2-0.8	Customized	5-60

Core Advantages

Compared to single-medium filters and simple filtration devices, our Quartz Sand Filter stands out with mature craftsmanship, low cost, and stable performance, effectively solving clients’ core pain points in water turbidity removal and preprocessing. Key advantages:

Stable & Compliant Filtration: The gradient quartz sand media achieves high removal efficiency for various solid impurities, with stable effluent quality unaffected by conventional water quality fluctuations. It consistently meets the quality requirements of preprocessing and direct drinking water purification.

Long Service Life: The thickened tank with professional anti-corrosion/polishing treatment and wear-resistant quartz sand media, paired with high-quality supporting valves and pipelines, endows the filter with excellent pressure, corrosion, and anti-aging resistance. Under normal maintenance, it can operate stably for 8-10 years, significantly reducing equipment replacement frequency and costs.

Simple Maintenance & Low Cost: The compact structure eliminates complex components. Fully automatic models support one-click operation and automatic backwashing/sewage discharge; manual models only require periodic valve switching. Daily maintenance needs no professional skills, and filter media consumption, backwashing water, and energy consumption are all low.

Wide Application Scenarios: Treats various water bodies including surface water, groundwater, circulating water, and sewage. Suitable for municipal, industrial, agricultural, and civil fields—adapts to small-scale swimming pool water purification, agricultural irrigation, as well as large-scale industrial preprocessing and municipal water supply.

Cost-Effective Investment: Low initial cost and easy installation without complex infrastructure renovation. Low operating energy consumption and minimal consumable loss result in extremely low long-term comprehensive usage cost, making it the top choice for medium and small water treatment projects.

Application Fields

Leveraging stable turbidity removal performance, low cost, and wide adaptability, our Quartz Sand Filter covers full-scenario water treatment needs and is a core preprocessing equipment for all water-related projects. Core application scenarios:

Municipal Water Treatment: Used for raw water preprocessing in water supply plants, municipal water supply turbidity control, deep filtration in sewage treatment plants, reclaimed water reuse projects, and urban landscape water purification, ensuring municipal water safety and compliance with discharge standards.

Industrial Water Treatment: Suited for circulating water filtration and boiler makeup water preprocessing in power, chemical, petrochemical, metallurgical, papermaking, and other industries—removes sediment and rust to prevent pipeline and heat exchanger clogging and scaling, improving equipment service life. Also applied to preprocessing production water in food and beverage, pharmaceutical industries, meeting the cleanliness requirements of production water.

Agricultural Irrigation: Filters irrigation water sources such as river water, lake water, and groundwater to effectively remove impurities, avoiding clogging of drip irrigation and sprinkler irrigation nozzles. Ensures stable operation of irrigation systems and improves water and fertilizer utilization efficiency, adapting to field cultivation, greenhouse cultivation, and other agricultural scenarios.

Civil & Commercial Water Purification: Used for commercial building circulating water purification, residential community groundwater purification, and small-scale water supply projects, providing safe and clean water for daily use and commercial operations.

Frequently Asked Questions (FAQ)

Q1: What water quality parameters can the Quartz Sand Filter handle?

A: It is suitable for raw water with turbidity ≤ 500 NTU, suspended solids ≤ 300 mg/L, and pH value of 5-9. For high-turbidity or special corrosive water quality, customized media particle sizes and tank materials can be configured to meet treatment needs.

Q2: How often does the Quartz Sand Filter need backwashing and media replacement?

A: Backwashing frequency depends on water inflow turbidity and daily treatment capacity—generally 1-3 times per day, with each backwashing cycle lasting 5-15 minutes. The quartz sand media only needs supplementation every 1-2 years under normal operation, with no full replacement required for 5-8 years.

Q3: What installation space and foundation requirements does the filter have?

A: The installation space needs to reserve operating and maintenance areas (at least 0.8m around the equipment). The foundation requires flatness and load-bearing capacity corresponding to the equipment model; vertical models need a horizontal foundation, while horizontal models need a fixed support frame. We provide detailed installation drawings and on-site guidance support.

Q4: Can the filter be customized for non-standard treatment capacity and site conditions?

A: Yes. We support customized design for treatment capacity (above 50 m³/h), tank height/diameter, inlet/outlet positions, control modes, and material configurations. Just provide your specific water treatment volume, water quality indicators, installation site size, and functional requirements, and our technical team will draft a customized solution for confirmation.

Q5: What after-sales services do you provide for the Quartz Sand Filter?

A: We offer one-year free warranty for the whole machine and lifetime technical support. Services include free installation guidance, operator training, regular maintenance consulting, and rapid fault diagnosis and troubleshooting. For equipment failures, we will respond within 24 hours and provide solutions in a timely manner.