HydroCal Inc.



Courtesy of HydroCal Inc.


The Dairy Plant was experiencing difficulties with their waste activated treatment plant due to overloading.


After a very successful trial, the customer installed a Hydrocal CAF to remove as much of the suspended solids, fats, oils and greases (up to 95 - 98%) as necessary to stabilize the biological plant.

The CAF 25 and balance tank were installed prior to the waste activated treatment plant. Typical reductions were averaging 98% for suspended solids and 70% for COD and BOD.

However, it was not necessary to reduce the loading to the waste activated treatment plant by this much as it would upset the food intake for the bacteria. The system was already programmed to automatically reduce the loading at high peaks. The final effluent leaving the waste activated treatment plant is 1 0-PPM BOD and 10-PPM SS.

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