Dairy acidulation, ice cream production
The ice cream production plant runs multiple products in a single day. Between each product run a CIP system is used to wash equipment of any number of organic ingredients from chocolate and caramel to fruit paste, nuts and more. The resulting wastewater contains high loads of TSS, FOG, and a wildly fluctuating pH.
The delivered wastewater treatment solution utilizes an acidulation process. By dosing sulfuric acid to lower the pH below 4, oil emulsions are broken, allowing polymers to effectively agglomerate suspended solids instead of relying on traditional coagulation and flocculation chemistry.
After removing solids caustic soda is used to neutralize the pH before discharge. This approach simplifies the chemical process and achieves discharge requirements
Equipment supplied
PCL-180 DAF
Flocculator (3)
Rotary drum screen
Sludge dewatering belt filter press
DAF sizing calculations
)
)
| Design parameters | Discharge requirements | |
|---|---|---|
| Flow | 5.451 m³/d | |
| TSS | 1.500 mg/l | 250 mg/l |
| FOG | 250 mg/l | 100 mg/l |
| pH | 4 - 10 | 6.5 - 8.5 |
)