Clean Water Technology, Inc.

Case study – dairy processing

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Courtesy of Clean Water Technology, Inc.

Introduction
Clean Water Technology, Inc., the creator of the Gas Energy Mixing (GEM) System, offers the most advanced primary treatment system on the market. The GEM System provides superior reduction of total suspended solids (TSS), biological and chemical oxygen demand (BOD/COD), fats, oils and grease (FOG) and turbidity.

Challenge
A premier processor of quality and specialty dairy products in Victoria BC, was in need of an efficient, full scale wastewater treatment system to alleviate pressures from local authorities and to produce cost savings by reducing wastewater surcharges paid to the local municipality.

The large variety of processing lines included several milk products, dozens of ice cream varieties, flavored sour cream varieties, cottage cheese and a yogurt product line. This wide array of products produced a stream which varied wildly in terms of contaminant loading, composition, pH and chemical demand.

In addition to the challenges presented by the wastewater stream, the processor had very little space available for new equipment. Sludge handling and hauling was also a concern due the limited space for storage and the high vehicle traffic on site.

Based on initial estimates, the processor was in need of a multi-stage solution which included both primary treatment (GEM System) and secondary treatment (bio-degradation) in order to achieve the stringent discharge requirements.

The waste stream required a system adaptable to wildly changing streams, was easy to operate, occupied the least amount of space and produced the driest and least amount of sludge by volume. This led them to Clean Water Technology (CWT) and the GEM System.

Cooperation
The client contacted CWT for a solution to these wastewater needs. Upon receiving samples from the client at CWT’s laboratory in Los Angeles, CA, CWT performed a treatability study. CWT’s testing results demonstrated that the GEM System would meet and exceed all of their treatment needs.

A full pilot demonstration was performed at the Client’s processing facility, during which CWT treated and analyzed all of the client’s waste streams in real time. The removal rates of the GEM System on the client’s waste streams all had one common theme: 100% Success.

Solution
After installation of the GEM System, the dairy processor has been experiencing excellent reductions in surcharges from the high contaminant removal rates of the GEM System.

The GEM System prevailed over the many challenges presented where other technologies would have struggled. By installing the GEM System, the Client benefitted from:

  • Lower Surcharges, Eliminating Fines
  • Adaptability to Changing Stream Conditions
  • Easy Operation
  • Smaller Footprint
  • Improved Site Logistics
  • Reduced Sludge Hauling Costs due to Drier, Denser Sludge

Economics
In addition to meeting the regulatory requirements and reducing the surcharges and fines, the GEM System achieved extremely high contaminant removal rates by removing TSS to trace amounts and reducing FOG to 7-10 ppm regardless of the influent FOG. Due to the absence of TSS and FOG after GEM System treatment, the footprint and sizing requirements of secondary treatment were greatly reduced, resulting in significant capital savings on the secondary treatment system.

Experience
CWT’s successful implementation of the wastewater treatment solution for the client not only comes with the innovative design of the GEM System, but from CWT’s experience in the dairy industry. Shown below are results from some of the dairy processors with whom CWT has worked with in the past.

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