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ProductUpdated on 29 July 2025

Octosan Water reuse

Erik Lind

MD at Wostman Ecology AB

Stockholm, Sweden

About

Octosan – Advanced MBR-Based Water Reuse for Sanitation and Hygiene

Octosan is a turnkey water reuse system designed to treat and recycle both blackwater (toilet wastewater) and greywater (from sinks and showers), enabling up to 98% water savings. Built on a robust 7-step Membrane Bioreactor (MBR) process, Octosan ensures safe, hygienic, and odour-free reuse of water—primarily for flushing and secondary uses.

Developed in cooperation with BFG International, Octosan is delivered pre-engineered to match each project's specific technical requirements, ensuring rapid deployment, reliability, and low-maintenance operation across a wide range of applications.

Key Features

  • 7-Step Purification Process (MBR-Based):
    Octosan employs a multi-phase treatment system including pre-filtration, biological breakdown, membrane filtration, disinfection, and recirculation. This ensures treated water meets high-quality standards for reuse and odour control.

  • Turnkey, Pre-Configured Units:
    Every system is delivered ready for installation with built-in filtration, treatment, and circulation components. Custom configurations are available for site-specific capacity, climate, and usage.

  • Black & Greywater Treatment:
    Unlike most reuse systems, Octosan handles both black and grey wastewater, increasing efficiency and maximising water recovery.

  • Up to 98% Water Savings:
    By recycling water for toilet flushing and other non-potable uses, Octosan dramatically reduces fresh water demand, operational costs, and environmental footprint.

  • Low-Maintenance & Scalable:
    Automated operation, remote monitoring options, and long maintenance intervals make it ideal for both urban and off-grid environments.

Product Variants

  1. Octo – Single Toilet Unit

    • Treats black and greywater

    • Compact and self-contained

    • Ideal for kiosks, cabins, and isolated sites

  2. Octopi – 2 to 4 Toilet Unit

    • Expanded capacity for public or semi-public use

    • Supports small offices, remote stations, or modular buildings

    • Handles combined wastewater streams

  3. OctoNano – Greywater Reuse for Entire Homes or Mobile Units

    • Treats all household greywater (e.g., sinks, showers, laundry)

    • Ideal for tiny houses, mobile homes, or off-grid use

    • Lightweight and energy-efficient design

  4. OctoFresh – Handwashing & Hygiene Station

    • Captures and reuses greywater from handwashing

    • Designed for schools, festivals, disaster response, and public sites

    • Supports high hygiene standards with minimal water input

Manufacturing & Support

All Octosan units are manufactured in collaboration with BFG International, ensuring high-quality composites, long service life, and global delivery capability. Technical support, installation guidance, and licensing options are available for institutional and industrial partners.

Octosan is a complete solution for decentralised, high-efficiency water reuse—built for real-world conditions, scalable infrastructure, and long-term sustainability.

Looking for

  • Buyer
  • Re-Seller/Wholesaler
  • Commercial agent
  • Subcontractor
  • Aftersales Services
  • Investment/Finance
  • Other

Applies to

  • CONSTRUCTION | Waste Water Management
  • CONSTRUCTION | Water Supply Technologies & water treatment

Organisation

Wostman Ecology AB

Other

Stockholm, Sweden

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