Pulp Mill EO/PO Defoamer Design

I need a complete glycol-based EO/PO defoamer formula that performs reliably in pulp and paper production. Our biggest pain point is keeping foam suppressed for many hours rather than simply knocking it... (Budget: $15 - $25 USD, Jobs: CAD/CAM, Chemical Engineering, Engineering, Materials Science, Mechanical Engineering, Process Engineering, Product Development, Solidworks)