Seltra – Membrane Systems

Seltra is Deepflow’s family of advanced membrane separation systems, integrating the latest MBR, UF, RO, DTRO, NF and EDI technologies.

Designed for ultrapure water production, desalination, and wastewater reuse, Seltra modules provide outstanding separation efficiency, low energy consumption, and superior scalability.

Each system is fully modular and skid-mounted, enabling fast deployment and seamless integration into complex treatment lines or hybrid ZLD processes.

With optimized flux stability and long membrane life, Seltra ensures reliable, continuous operation in even the most challenging industrial environments.


Model Code
  • DMBR-Membrane Bioreactors (MBR)
  • DRO-Reverse Osmosis (RO) systems
  • DNF-Nanofiltration (NF) systems
  • DUF-Ultrafiltration (UF) systems
  • DEDI-Electrodeionization (EDI) systems
  • DTRO-Disc-Tube Reverse Osmosis (DTRO) systems
Model code
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Model Code
Technology Type
Pressure (MPa)
Typical Application
  • DMBR-Membrane Bioreactors (MBR)
    Membrane Bioreactor
    0–0.35
    Municipal & industrial wastewater reuse
  • DRO-Reverse Osmosis (RO) systems
    Reverse Osmosis
    ≤ 1.5
    Desalination, high-purity water
  • DNF-Nanofiltration (NF) systems
    Nanofiltration
    0.75
    Partial desalination, softening
  • DUF-Ultrafiltration (UF) systems
    Ultrafiltration
    ≤ 0.2
    Pre-treatment for RO, filtration of suspended solids
  • DEDI-Electrodeionization (EDI) systems
    Electrodeionization
    ≤ 0.6
    Ultrapure water polishing
  • DTRO-Disc-Tube Reverse Osmosis (DTRO) systems
    Disc-Tube Reverse Osmosis
    9–12 MPa
    High-TDS, high-salinity wastewater
Applicable fields
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Type
Series
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