Downstream Wastewater Treatment

Downstream processes generate wastewater that must be treated prior to discharge or reuse.

Pollutants must be removed to ensure full compliance and appropriate quality. These pollutants are mostly oils and hydrocarbons, hydrogen sulfide, ammonia, phenols, COD, BOD, mercury, selenium, cyanides and chlorides.

Available Treatment Technologies

*-Clicking on the links below may re-direct to other Veolia web pages

  • Oil/Water Separation
    - API Separation
    - TiPSS™ - Tilted plate separation
    - Power Clean Systems™ Oil removal nutshell filters
    - IDRAFLOT®  - Dissolved Air Flotation (DAF)
    - Ceramic membrane technology
  • Biological Treatment
    - Conventional Activated Sludge Units (ASU)
    - Neosep™ - Immersed Membrane Bioreactor (MBR) 
    AnoxKaldnes™ MBBR - Moving Bed Biofilm Reactor
    - Ecobatch™ - Sequential Batch Reactor (SBR)
    - Fluidized Media Fixed film
    - Off-gas BioFilter
  • Tertiary Treatment
    - Actiflo™ High-rate clarification -  Effluent Polishing
    - Membranes (nanofiltration, microfiltration, ultrafiltration, reverse osmosis)
    - Neosep™ - Immersed Membrane Bioreactor (MBR) 
  • Sludge Treatment
    - Sludge Volume Reduction
    Actidyn™ - Concentration
    - Dewatering via centrifuge or filter press
    - Biogas Production, Stabilisation and Sanitization
    - Biothelys™, Biotherm™ - Digestion technologies
    - Oily Sludge Treatment
    - Incineration with Ash and Energy Recovery
    Biocon™ ERS - Sludge drying plant
    - Pyrofluid™ - Fluid bed furnace
  • Specific Applications
    - Dissolved and dispersed hydrocarbons removal (<0,1 ppm) (MPPE systems)
    - Insoluble hydrocarbons removal (Power Clean Systems® nutshell filters)

  • - Membrane degasification