Meeting NPDES Water Discharge Requirements

When a Florida firm needed help meeting their NPDES discharge requirements, they contacted Rain for Rent's Ocala branch. 

The Florida company processes phosphate rock used as a supplement in farm animal feed.  The effluent water from the process is discharged into a series of open-surface impoundments (ponds) to allow solids to settle prior to discharge.  The water from the ponds, which cover in excess of 100 acres of surface area, is released into a nearby canal under their NPDES discharge permit. 

Over years of constant production, the ponds became heavily sedimented.  The solids were carried into the discharge outfall exceeding the limitations of the discharge permit.  Desiring to improve environmental stewardship, the company decided to recycle the plant process water for reuse to reduce wastewater discharge volumes.

Rain for Rent received a frantic call when the first contractor's rig began to fail. 

After surveying the job site, two HH-150 Stainless Steel pumps were recommended to meet the pumping specifications.  One primary pump and one backup pump ensured coverage.  Rain for Rent's second recommendation was to float the pump suction in order to minimize the disturbance of the pond bottom.  This reduced the sediment load on the filtration system.

With the revised R/O wastewater processing system running, a project challenge occurred.  The efficient pump flow began to overload the R/O bag filtration system forcing frequent change out of bag filters.  After a complete evaluation of the filtration process, Rain for Rent added a sand media filtration unit to the existing system.  Two 48-4 sand media units provided system coverage to comply with the project's specifications.

The project has now been operating successfully for several months and requires only a weekly change of bag filters.

Rain for Rent's Engineering Department and Specialty Rental Division have the expertise to evaluate, design, install and facilitate unique filtration projects like this application.