PROTECTING THE FUTURE RECYCLING PROGRAMS
Recycling of Fats, Oils and Grease (FOG) is not only helping to reduce the instances of clogged sewers that can result in overflows and foul odors; it is also helping to power the South Columbus Water Resource Facility.
About 3,500 gallons of grease, collected from
restaurants, apartment complexes and public recycling events, is re- cycled daily. A public event in 2012 brought in 400 gallons of grease, more than twice the amount that was collected during the voluntary drive held in 2011. The processed grease is converted into methane used to help power the South Columbus Water Resource Facility and is now saving CWW about $50,000 a year in energy costs. In an effort to stem the chemicals that can make their way into
the river, which may ultimately damage fish and the environment, CWW partners with local law enforcement agencies and the Keep Columbus Beautiful Commission to collect expired and unused phar- maceuticals. During a drive last year more than 500 pounds were collected; about triple the amount collected in 2011.
INFLOW & INFILTRATION ABATEMENT
CWW has smoke tested and videoed over 89,000 linear feet of sewer mains in order to reduce storm-water inflow and infiltration (I&I) into the sanitary sewer system. I&I from both public and private sources must be eliminated in order to maintain the sewer system’s capacity. More than 300 repairs have been made by CWW to pipes and connections on public property. Private property owners have repaired more than 20 problems. Analysis of flow monitoring data shows a reduction ranging from 44 percent to 77 percent of I&I per inch of rainfall in the targeted areas.
GREEN SPACE PARKING LOT An innovative, environmentally friendly and cost effective solution
to overflow parking has been developed at the CWW service center, off 54th Street. The vegetative porous pavement structure which was installed in 2012 reduces storm water run-off, keeps vehicles cooler in the summer and provides filtration from pollutants deposited by vehicles.
CBFT3 UPDATE The final testing phase is underway on the Columbus Biosolids
Flow-Through Thermophilic Treatment (CBFT3) program first pio- neered by CWW in 2004. The 18 million dollar project is on track to get EPA certification for producing class “A” biosolids. The CBFT3 generates green power and fertilizer from wastewater. It is now pro- ducing about 45 percent of the energy required to power the South Columbus Water Resource plant for an annual power savings of more than $400,000.
A DROPLET OF WISDOM
“CWW does well in all areas; from winning awards, public outreach, TV spots, sponsors, Oxbow, using methane to get electricity, fertilizer for hay, and support of CSU. CWW moves out of the box.”
-Owen Ditchfield, South Columbus Concerned Citizens
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