Henan Guoqing Environmental Protection Technology Co., Ltd
Quartz Sand Filter
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The quartz sand filter is an important component in the pre‑treatment stage of pure water preparation and water purification systems.
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- Product Details
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Quartz Sand Filter
Product Overview
The quartz sand filter is an important component in the pre‑treatment stage of pure water preparation and water purification systems. Using quartz sand as the filtration medium, it passes water with high turbidity through a layer of granular or non‑granular quartz sand under a certain pressure. It effectively removes suspended solids, organic matter, colloidal particles, microorganisms, chlorine, odors, and some heavy metal ions from the water, ultimately reducing turbidity and purifying water quality – making it a highly efficient filtration device.
Sand filters are available in various materials including steel with rubber lining, steel with epoxy coating, stainless steel, and FRP (fiber‑reinforced plastic). Quartz sand filters can be used in combination with activated carbon filters, manganese sand filters, water softeners, or as standalone units.
Based on the turbidity of the raw water, this product is available in single‑layer and dual‑layer configurations. The single‑layer uses quartz sand; the dual‑layer uses quartz sand and anthracite.
When the influent turbidity is ≤ 20 NTU, a single‑layer filter medium is used; when influent turbidity is ≥ 20 NTU, a dual‑layer medium can be adopted. The quartz sand particle size ranges from 0.5 to 4 mm, with step‑wise grading; the anthracite particle size ranges from 0.8 to 1.5 mm.
The filter can be designed in various configurations – low‑speed, high‑speed, or automatic control – based on different applications and customer requirements.
Model Designation
①Tank Diameter ②Quartz Sand/Multi-media ③Product Series
Product Features
- Low equipment cost, low operating cost, and easy management.
- The filter media can be reused after backwashing, offering a long service life.
- Various backwashing methods are available, including manual, timed, and differential pressure‑based.
- Good filtration performance with a small footprint.
- The filter is easy to relocate, dismantle, and expand for capacity upgrades.
Technical Parameters
Item Specification Treatment Performance Inlet: 10–20 NTU, Outlet: 2–5 NTU Inlet: ＜10 NTU, Outlet: ＜2 NTU Dirt Holding Capacity: 5–15 kg/m³ Operating Conditions Operating Temperature: 5～40℃ (Custom temperature available) Working Pressure: ≤0.6 MPa Test Pressure: 0.75 MPa Inlet Water Pressure: ≥0.04 MPa Backwash Inlet Pressure: ≥0.15 MPa Pressure Drop between Inlet & Outlet: 0.05–0.1 MPa Operating Parameters Operation Mode: Pressure type Flow Direction: Top-down Filtration Velocity: 8–12 m/h Operating Cycle: ≥8 h Backwashing Mode: Water washing or air-water combined washing Backwash Intensity: 14–16 L/s·m² Backwash Duration: 15–30 min Backwash Expansion Rate: 30–50% Shell Material Stainless Steel, Carbon Steel with rubber lining or epoxy coating Control Type Manual, Electric, Pneumatic, Multi-port Valve Head
Key Word：
Environmental protection equipment
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WhatsApp：8618737959990
Email：gqhbtop@gmail.com
Manager Liu：+8618737959990
Manager Yang：+8615037920517
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