Effluent treatment dairy

A new state wastewater permit specified stricter discharge requirements for a major ice cream maker in Massachusetts. As a result, the facility needed to install a wastewater pretreatment system, but had limited land available for such a system. In addition, there was an aggressive timeline for compliance with the new permit, which specified new limits for biochemical oxygen demand (BOD) and fats, oils and grease (FOG).

Waterleau offered a wastewater treatment solution that could address the compliance issues, all within a footprint small enough to be constructed in an existing onsite building. Waterleau delivered a solution that incorporated a Krofta Supracell dissolved air flotation (DAF) clarifier to address FOG (avg. influent of 1,145 mg/L). The DAF was followed by an up flow fixed media reactor for aerobic treatment of remaining BOD.

To meet the expedited schedule, Waterleau provided a Krofta DAF rental unit for compliance until construction was complete. The new plant was built under an expedited 25-week schedule.


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