If a company can connect to the sewerage system for the removal of industrial waste water, its own waste water treatment is quickly regarded as an unnecessary and unprofitable investment. However, when one takes the necessary expertise to calculate the costs, it turns out that in many cases the opposite is true.
What about wastewater discharge standards and the water bill?
If, as a Flemish company, you discharge your industrial waste water untreated to the sewer system, you must pay an annual levy for this. This is a levy for the remediation of waste water by municipal waste water treatment. This levy will be charged in full via the integral drinking water invoice since the 2017 tax year, in the form of a supra-municipal decontamination contribution, and covers a substantial proportion of the total drinking water bill.
Should I invest in my own wastewater treatment system?
In many cases, however, it is interesting to install your own waste water treatment. The annual costs for self-purification are significantly lower than when unloading is discharged into the sewer system. If you have your own wastewater treatment, the municipal decontamination contribution will lapse. If one also disconnects from the sewerage system, and discharged purified water on, for example, surface water, then the municipal decontamination contribution will also lapse on the integral drinking water bill. This is a contribution for the discharge and collectors of the wastewater.
Your own waste water treatment can always be considered if you have easily degradable waste water, as is usually the case in the food and beverage sector. Depending on a number of parameters, including the daily volume and the degree of pollution of the wastewater, the purchase of a separate treatment can be recovered within 2 to 8 years.