Product Introduction
LEFILTER introduces the UF1OB90 Ultrafiltration Membrane for High Hardness Water Treatment, a specialized membrane module developed to address the challenges associated with treating water sources rich in calcium, magnesium, and other hardness-causing minerals. As a reliable equivalent to top international models, the UF1OB90 is designed to deliver robust and stable performance in environments where scaling, fouling, and mineral accumulation pose significant threats to filtration system longevity and efficiency. Its superior membrane structure, combined with chemical-resistant materials and an optimized flow path, ensures high separation performance and reduced maintenance frequency in tough operational settings.
Product Specifications
Model | UF1OB90 |
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Membrane Material | Hydrophilic PVDF (Polyvinylidene Fluoride) |
Nominal Pore Size | 0.03 μm |
Filtration Structure | Hollow fiber, outside-in |
Effective Membrane Area | 90 m² |
Operating Pressure Range | 0.1 – 0.3 MPa |
Maximum TMP (Transmembrane Pressure) | 0.5 MPa |
Backwash Pressure | ≤ 0.3 MPa |
Operating Temperature Range | 5°C – 45°C |
pH Range for Cleaning | 2 – 12 |
Housing Material | UPVC or optional stainless steel |
Installation Method | Vertical (standard) or horizontal (optional) |

Built with long-lasting materials and designed to handle scaling-prone water with ease, the UF1OB90 offers low fouling rates, high flux consistency, and operational durability in hard water environments where other membranes may quickly degrade.
Application Fields
The UF1OB90 ultrafiltration membrane is ideal for a variety of high hardness water treatment scenarios where precision, durability, and consistent quality are critical. Its application areas include:
Groundwater and Well Water Filtration: Especially effective in areas where mineral concentrations are high, helping to remove turbidity and microbial contaminants before softening or RO treatment.
Boiler Feed Pretreatment in Industrial Plants: Prepares hard source water for demineralization systems, reducing scaling and protecting downstream equipment.
Mining and Metallurgical Water Systems: Handles water with elevated mineral loads in process water recycling or discharge treatment.
Pretreatment for Ion Exchange or RO Systems: Reduces the particulate and microbial load on softeners or reverse osmosis membranes, prolonging operational life and performance.
Rural or Decentralized Water Systems: Provides an efficient and low-maintenance filtration stage in areas where high-hardness water is the norm.
The UF1OB90 is particularly well-suited for integration into treatment lines where water composition is variable and mineral scaling is a persistent issue, delivering a reliable barrier against suspended matter and bio-contaminants while complementing hardness control processes.
FAQ
Q1: How does the UF1OB90 membrane manage scaling in high hardness water applications?
A1: While ultrafiltration membranes do not remove dissolved hardness ions, the UF1OB90 is engineered to resist scaling through its hydrophilic PVDF structure and optimized surface design. It effectively removes particulates and microorganisms, reducing fouling and allowing softeners or antiscalants to work more efficiently downstream.
Q2: Can the UF1OB90 be used directly with hard water without prior softening?
A2: Yes, the UF1OB90 can handle hard water sources, especially for removing suspended solids and microbial content. However, for removing dissolved hardness (Ca²⁺, Mg²⁺), it is typically used as a pretreatment before softening or reverse osmosis systems.