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Polymeric Ultrafiltration

Enhancing Filtration Efficiency with PVDF Membranes

We’re transforming crossflow ultrafiltration with our innovative PVDF membrane solution, designed for high-strength and high-solids wastewater. This energy-efficient and sustainable approach simplifies the process, making it an excellent choice for polymeric ultrafiltration applications. Our advancements in PVDF technology mark a significant step forward in achieving cleaner water with less energy.

What is Polymeric Ultrafiltration (pUF)?

Our Polymeric Ultrafiltration (pUF) technology, utilizing a specialized PVDF membrane, is at the forefront of efficient and sustainable wastewater treatment solutions:

  • Polymeric Ultrafiltration (pUF) features advanced PVDF membrane chemistry for efficient wastewater management.
  • It utilizes an energy-saving design and a unique closed-loop operation, aiming for high permeate recoveries.
  • Optimized for high-strength, high-solids environments, it ensures UF-quality effluent with minimal energy use.
  • pUF stands out as the only outside-in crossflow UF membrane technology tailored for challenging wastewater conditions.
  • Fully back-washable modules allowing for extended operation between maintenance cleans
  • UF permeate suitable for re-use in some applications or further purification
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The Distinctive Features of pUF Technology

Our Parallel Channel PVDF Membrane Module

  • Our Parallel Channel Module features the advanced PVDF membrane for polymeric ultrafiltration, offering outside-in permeation in parallel channels.
  • Requires 2-10x less crossflow velocity compared to tubular membranes, enabling dramatic energy savings with the use of a PVDF membrane.
  • Boasts a high membrane packing density, with 385 ft² in a 10″ x 10’ module, optimized for polymeric ultrafiltration efficiency.
  • Supports up to 20 psi backwashing to maintain peak performance, ensuring the longevity of the PVDF membrane.
  • Designed for continuous operation in a feed and bleed configuration or with internal concentrate thickening, showcasing the versatility of polymeric ultrafiltration.
  • Demonstrates typical electrical consumption of 2.5-3.0 kWh/1,000 gal of permeate, highlighting the energy efficiency of using a PVDF membrane in polymeric ultrafiltration systems.
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Typical Tubular Membranes

  • Typical tubular membranes, including our PVDF membrane for polymeric ultrafiltration, allow inside-out permeation in parallel tubes.
  • Achieving optimal fluxes with these systems requires high crossflow velocities, a contrast to the efficiency of polymeric ultrafiltration.
  • Our stainless steel UF membranes, adaptable for backwashing, highlight limitations in standard backwashing capabilities.
  • Features low membrane packing density (171 ft² in a 10″ x 10’ module), underlining the advantages of PVDF membrane technology in polymeric ultrafiltration.
  • Demonstrates a typical electrical consumption of 25-50 kWh/1,000 gal of permeate, showcasing the energy efficiency of adopting PVDF membranes for ultrafiltration.
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System Design and Scaling

Digested Organics offers several standard sizes of pUF systems to meet various capacities. Larger systems and custom designs are available upon request

System Module Size Number of Modules Total Area Permeate Rate (GPD)*
DO-PVDF-8-4 PVDF-8 4 460 6,325
DO-PVDF-8-4 PVDF-8 8 920 12,650
DO-PVDF-10-4 PVDF-10 4 1,540 21,175
DO-PVDF-10-8 PVDF-10 8 3,080 42,350
DO-PVDF-10-16 PVDF-10 16 6,160 84,700
DO-PVDF-10-24 PVDF-10 24 9,240 127,050
DO-PVDF-10-32 PVDF-10 32 12,320 169,400

*Assumes average flux rate of 15 GFD and 22 hours/day operations, allowing 2 hours/day for Clean-in-Place or maintenance, as needed.

Unlocking the Potential of Polymeric Ultrafiltration

Digested Organics leverages advanced polymeric ultrafiltration technology to provide innovative solutions for wastewater treatment. This approach employs cutting-edge membranes to efficiently separate contaminants from water, offering a sustainable and effective method for purifying various wastewater streams. With polymeric ultrafiltration, users can expect a system that not only meets regulatory standards but also supports environmental conservation efforts.

FAQs: Polymeric Ultrafiltration

What is a PVDF membrane used for in polymeric ultrafiltration?

A PVDF membrane is a durable filtration material used in polymeric ultrafiltration systems to efficiently remove contaminants from water and wastewater, offering superior chemical resistance and stability.

How does polymeric ultrafiltration differ from other filtration methods?

Polymeric ultrafiltration, often employing PVDF membranes, stands out for its ability to target very small particles and molecules, making it more effective for certain types of water treatment applications compared to traditional filtration methods.

Can PVDF membranes in polymeric ultrafiltration systems handle high temperatures?

Yes, PVDF membranes are known for their high thermal stability, making them suitable for polymeric ultrafiltration processes that require exposure to high temperatures without compromising filtration performance.

What are the advantages of using PVDF membranes in polymeric ultrafiltration?

PVDF membranes offer several advantages in polymeric ultrafiltration, including high chemical resistance, mechanical strength, and the ability to withstand harsh operating conditions, resulting in longer lifespan and lower maintenance costs.

Are PVDF membranes environmentally friendly in polymeric ultrafiltration applications?

Yes, PVDF membranes are considered environmentally friendly in polymeric ultrafiltration systems as they are recyclable and produce minimal waste during manufacturing and operation, contributing to sustainable water treatment practices.