NEW Water Annual Report 2016 - Page 12

Plant Optimization In addition to the work “outside the fence” with the
Silver Creek Project, NEW Water is continually working to improve operations at
its two treatment facilities.
Cleaning billions of gallons of water around the clock each year requires that
numerous complex processes run in harmony. One change can impact numerous
processes throughout the facility.
To meet new permit requirements, NEW Water launched an Operational
Evaluation Report to optimize the plant for phosphorus and Total Suspended
Solids reduction. Given that the new solids handling facility is slated to go online
in 2018, the needs of anaerobic digestion also factor into optimization efforts.
Optimization efforts include: increasing the un-aerated portion of the biological
treatment process to enhance nutrient removal, which involved constructing
walls and adding 20 mixers to aeration basins at the Green Bay Facility (“looks
like a cake mixer at home, on a super-size scale,” says Jake Becken, Treatment
Lead); adding Oxygen Reduction Potential (ORP) probes to better evaluate the
performance of the phosphorus removal process; “jar testing” – conducting
tests on a small-scale in the Laboratory to simulate what might work out in the
treatment process to optimize Total Suspended Solids, and phosphorus removal;
microbiology inventory to assess the health and efficacy of the biological
treatment process.


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