COD Reduction

Reduce wastewater discharge fee by 75 %.

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Dairy Wastewater Filtration System

Significant COD Reduction With LiqTech Filtration

Reduce your wastewater taxes and chemical consumption with a fully automated system.

Are you struggling with high wastewater taxes and chemical consumption? Would you like to significantly reduce your COD, oils/fat, Nitrogen, Phosphor in your wastewater?

Butter, cheese, milk, or yogurt, using pasteurization or homogenization, produce wastewater with high COD loads that must be reduced before discharge to municipal treatment facilities.

With LiqTech’s innovative membrane filtration solution, you can achieve a more economically sustainable dairy business by drastically reducing the OPEX of your wastewater management.


See Mamman Dairy Case Story

Benefits of the LiqTech wastewater system

Benefits of LiqTech filtration system

  • ROI less than one year
  • Reduced OPEX
  • Low fouling ceramic membranes in the system
  • A fully automated filtration system
  • Discharge water compliance
  • Hygenic membrane
  • Closed system
  • No foul smell from the system
  • Lower maintenance shut-down periods
  • Significantly higher up concentrated wastewater discharge costs

Comparison with other conventional technologies

  • Do not create odor nuisance (like MBR)
  • does not require significant floor space (like FSM)
  • No need for coagulation or flocculation chemicals (like Band filters)
  • No membrane replacement (like Polymer systems)
  • Do not require manual effort to run the system (self-driven system)

Proven Solutions

1 years of experience in the filtration industry
280 water treatment systems installed worldwide

LiqTech wastewater system for COD reduction is suitable for...

  1. COD Reduction In Dairy


  2. COD Reduction In Butchery


  3. COD Reduction In Food And Beverage Industry

    Food & beverage in general

Case study: Mammen Dairy

A better solution than conventional technologies due to drastically reduced OPEX of wastewater management.

With Mammen Dairy, LiqTech has significantly reduced their COD and fats/oils levels by implementing LiqTechs innovative ceramic membrane filtration technology. Apart from performing over 4x times better than their previous system, the LiqTech filtration solution has also eliminated the need for flocculant and coagulant chemicals in the filtration process.

Please have a look at our results.

The LiqTech filtration solution has proven to achieve:

  • 56 % Reduction of COD
  • Removing Fats and Oils to a non-detectable level
  • 47 % Reduction of Nitrogen
  • 27 % Reduction of Phosphor
  • Over 4 x better reduction in COD than traditional technologies without the need for coagulation or flocculation chemicals

Do you want to know more?

If you need more information about the advantages of a LiqTech dairy wastewater system, please do not hesitate to contact us.

We are ready to help you