Sustainability makes Mars’ chocolate even better

The challenge

Mars strives to have a complete sustainable production in the year 2040 via its Sustainable In one Generation Plan. Through the installation of  Memthane®, a membrane bioreactor for biological treatment of heavily contaminated wastewater, Mars makes significant progress towards its sustainability targets at its largest chocolate processing facility in the world.

Veolia’s solution

Our experts supplied the most appropriate anaerobic wastewater treatment technology to maximize renewable energy production while producing high-quality effluent. The solution differentiates by achieving more than 99% removal in a one stage anaerobic process. In the memthane reactor the wastewater from Mars is biologically treated and converted into high calorific biogas. The treated effluent and biomass are separated by means of ultra filtration units. The biomass is then returned to the reactor. The final effluent discharged to sewer.

The team ensures the  maintenance of the wastewater treatment plant.

Benefits Mars:

  • Most compact solution and lowest operational costs in comparison to other treatment routes
  • Net carbon footprint reduction of more than 150 ton CO2/year
  • Maximum renewable energy production, up to 10% of gas consumption
  • More than 99% reduction of pollution equivalents

150 tons CO₂
avoided annually

Up to more than
10% energy

Reduction on
sewer cost 97%

Site: Veghel, The Netherlands
Scope: DBOM sustainable waste water treatment plant by using anaerobic memthane process.

Duration: 3 years

Food & Beverage

Project Management, Wastewater treatment, Energy recovery, Memthane technology, Carbon Footprint reduction, O&M