Liquids Management: Wastewater Pretreatment, ButterBuds Food Ingredients


Cleaning concentrations of fats, oils, and grease (FOG) in wastewater require pretreatment to meet POTW requirements.



ButterBuds® Food Ingredients supply their concentrated dairy flavors to consumers and food businesses all over the world. ButterBuds called in SCS Engineers after the concentrations of fats, oils, and grease (FOG) in their wastewater exceeded their pretreatment permit standards. They had reached the end of negotiations with the City, which was threatening legal action.


Fats, oils, and grease (FOG) causing wastewater issues for a food ingredients company.

The compliance schedule required a swift solution, but for the company, it was also critical that ongoing production would not be disrupted.

SCS Engineers began by carrying out a multi-level review of the wastewater pretreatment issues. We conducted a process water balance, prepared a process flow diagram, measured process flows, collected/analyzed wastewater samples, evaluated chemical treatment testing and maintained communications with City staff.

The SCS team prepared engineering design drawings and specifications for the wastewater pretreatment system. We also helped ButterBuds staff with the selection of wastewater pretreatment equipment, bidding, construction, and start-up, as well as resolving operational issues.

The wastewater treatment equipment had to be housed in a separate building away from the food ingredient processes. This requirement meant the wastewater discharge piping had to be installed underneath the existing building using directional drilling to minimize any disturbance to production.

Outcomes and Benefits

  • Regulatory compliance – Since the pretreatment system was installed, Butter Buds has been able to operate in compliance with the permit standards.
  • Uninterrupted production – SCS Engineers’ solution enabled production to continue during the installation of the system.
  • Schedule compliance – The City’s compliance schedule was met despite tight requirements for system construction and the start-up deadline.
  • No legal action – SCS effectively managed the political aspects of the project, thereby avoiding further legal action by the City.


“SCS really helped us out with our wastewater pre-treatment compliance issue!”
John Kueffer, Manager of Special Projects, ButterBuds Food Ingredients