Skip to main content

Contact UsContact Us


The Flocculation Magnetic Separation System, one of Hitachi's core technologies, quickly removes oil suspended solids and other matter from target water.
High-quality treated water can be delivered with less than five minutes retention time.
A wide variety of applications are available to meet the diverse needs of our customers.

Application examples

  • Algae (cyanobacteria) removal (lakes and marshes)
  • Removing red tide plankton in seawater
  • Phosphorous removal
  • Produced water treatment for offshore/onshore oil and gas fields
  • Oily water (with sand) treatment

System configuration

In the Flocculation Magnetic Separation System, suspended solids (SS) within raw water are mixed with a flocculent that contains magnetic powder, flocculated, and then separated using a permanent magnet.

  • Operating conditions (retention time, chemical dosing ratio, etc.) depend on water quality.
  • Prefabricated mobile type is available if there is a user requirement.


  1. High quality
    The observed suspended solids removal rate is greater than 95%
  2. Stable treatment
    Provides a high level of reliability, even with unstable inlet water characteristics, with appropriate chemical and physical parameters.
  3. Compact design
    Less than five minutes retention time.
    Easy to scale up.
  4. Short construction period
    Modularized system easily and quickly installed.
    Minimum interconnections required.

(In-house comparison)

Mobile type system

  • Quick treatment with small facility
  • In containerized unit so that the user can move it to the required area.
  • Includes generator so that the user can use it where there is no electricity.