Kansas River Wastewater Treatment Plant

Executive Summary 2009

1400 E. 8th Street

Description: Buildings and above ground structures’ exteriors are brick. Administration building interior is sheetrock and metal. All other buildings’ interiors are glazed or painted block. Above and below ground structures are concrete. Facility includes 18 buildings, 11 above ground structures, and 17 below ground structures, as well as miscellaneous underground piping and equipment.

Year Constructed: 1956

Current Replacement Value: $48,264,744.62

Condition Report: The wastewater treatment plant structures are in very good overall condition. General maintenance of all buildings and structures is required on a regular basis.

Completed Improvements: The original structures of the wastewater treatment facility were constructed in 1956. Secondary treatment and associated structures were added in 1976. Maintenance and improvements are planned and completed on the facility on an on-going basis. However, the following major improvements were completed in recent years:

1997

• Rehabilitated the digesters and replace aging support systems, including construction of gas collection.
• Rehabilitated the chlorine contact basins and added sodium bisulfite addition to the disinfection process.

1999

• Replacement of the grit removal and washing system

2000

• Added the biosolids handling facility, including dissolved air floatation system, belt presses, chemical addition, biosolids storage, and biofilter.
• Added a third boiler to the anaerobic digester. ($8,000,000)

2003

• Rehabilitated plant, including replacement of bar screens, raw pumps, scum pumping, primary sedimentation basins, aeration and final basins. Added increased treatment capacity through additional primary, aeration, and final basins and excess flow facilities. ($40,000,000)

2005

• Added a roof to the biosolids storage bays. ($300,000)

2008

• Add equipment storage building.

Energy Conservation Efforts

• Installed motion detection lighting in all plant buildings, 2000
• Recycle paper, cardboard, and plastic, 2007
• Installed variable frequency drives for pumps, 2000
• Replace pumps and motors with energy efficient models, on-going.
• Reduction of I&I with CIPP program, on-going

Needed Improvements

• Replacement of HVAC on the administration building.
• Rehabilitation of anaerobic digester.
• Evaluate needs of replacing existing WWTP blowers with Turblex High Efficiency Turbines.

Needed Energy Efficiency Projects

• Replacement of HVAC on the administration building and installation of programmable thermostats.
• Private I&I Reduction Program
• Evaluation of shutting down blowers to optimize usage to meet DO needs.
• Construct 3-5 megawatt electrical generation facility at Hamm’s Landfill.

Energy Costs History

Note: Most of the electricity and gas is used for the operation of the plant, including the pumps, motors, blowers, and other equipment that is used in the treatment of wastewater. Only a small percentage of these costs are related to lighting, temperature control, and other office uses.

Energy Consumption

Natural Gas Usage

Electricity Usage