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Membrane Systems

Aqua MultiBore
Ceramic and Polymeric Membrane Systems

Multibore tubular ultrafiltration membranes available in two series: C-Series (ceramic — maximum durability and chemical/thermal resistance) and P-Series (polymeric — high performance with better cost-effectiveness). The ideal solution for each quality, capacity, and operating condition requirement.

Aqua MultiBore Ceramic & Polymeric Membranes
0.02–0.04 μm
Pore Size (UF)
C-Series
Ceramic — Max Durability
P-Series
Polymeric — Best Cost
< 1 NTU
Effluent Turbidity
15+ years
Service Life (Ceramic)

C-Series vs P-Series — The right choice for each project

C-Series — Ceramic

  • Service life over 15 years
  • Full resistance to pH 1–14
  • Tolerance to high temperatures
  • More aggressive chemical cleaning
  • Ideal for complex industrial effluents
  • Lower module replacement frequency

Multibore tubular membranes — the evolution of ultrafiltration

MultiBore technology was developed to overcome the limitations of conventional single-channel tubular membranes. Each module contains multiple parallel channels (7 channels per membrane in the standard geometry), which better distribute mechanical forces and significantly increase structural robustness — eliminating the main failure mechanism of conventional hollow-fiber membranes: pressure-induced rupture.

The multibore geometry also maximizes filtration area per module and allows high-intensity backwash flows without collapse risk, ensuring greater longevity and operational reliability. Available in two series to serve everything from municipal wastewater treatment to highly chemically and thermally aggressive industrial applications.

Multibore Geometry — More Robust

7 parallel channels distribute mechanical forces and eliminate membrane collapse risk during backwashing.

Absolute Physical Barrier

0.02–0.04 μm pores retain 100% of solids, bacteria, viruses, and protozoa — regardless of load variations.

Configuration Flexibility

Scalable modules in external racks or integrated with MBR systems — adaptable to any capacity.

Aqua MultiBore modules in ultrafiltration rack
Aqua MultiBore — UF modules in external rack

How do MultiBore membranes work?

Pressurized effluent enters through the tubular channels of MultiBore modules. Transmembrane pressure (TMP) forces liquid through the UF pores, retaining all solids, colloids, bacteria, and protozoa in the lumen. Permeate collected externally is directed to subsequent steps.

Membrane cleaning is performed through regular backwash cycles (reverse permeate flow) and relaxation (filtration pause with aeration), plus periodic chemical cleanings (CIP) with acid or alkali based on identified fouling. The multibore geometry withstands high backwash flows without membrane damage risk, ensuring complete flux recovery.

1. Inside-Out Filtration

Effluent enters tubular channels; permeate collected externally after passing through UF pores.

2. Periodic Backwashing

Reverse permeate flow removes fouling — multibore geometry withstands high intensity without damage.

3. Automatic CIP

Programmable chemical cleaning restores original membrane flux, maintaining projected service life.

MultiBore membrane detail
MultiBore geometry detail — 7 channels per membrane

Applications of Aqua MultiBore

Municipal Wastewater Treatment

Highly reliable tertiary filtration for municipal WWTPs with reuse

Complex Industrial Effluents

C-Series for aggressive effluents: food, chemical, petrochemical, and pharmaceutical

RO/EDI Pre-treatment

High-quality feed water production for reverse osmosis and electrodeionization systems

Water Reuse Systems

Absolute barrier for municipal, industrial, and building reuse projects

AquaMB Process Integration

Second barrier in the multiple barrier system for maximum reuse safety

Large-Scale MBR Systems

External UF modules integrated with bioreactors for large-capacity municipal WWTPs

Related Technologies

Need high-performance ultrafiltration for your project?

Aqua MultiBore membranes offer the ideal solution for each application. Consult our technical team.

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