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Wastewater Treatment Design: NAS Fallon WWTP
Date
2014Type
ThesisDepartment
Civil and Environmental Engineering
Degree Level
Honors Thesis
Degree Name
Environmental Engineering
Abstract
A new wastewater treatment facility is needed at Naval Air Station (NAS) Fallon. NAS Fallon recently
became the new home for the Naval Fighter Weapons School (TOPGUN), ensuring that the base will
remain highly active for years to come. Between residential and commercial flows, the existing facilities
accepts and treats approximately 0.25 MGD of wastewater. The existing facility holds an outdated
design and compromised structures. In addition to weak infrastructure, ever increasing effluent
regulations have created the need for a new facility a priority. While wastewater loading flows are not
expected to drastically increase, a reliable, effective facility is needed for the future operation of NAS
Fallon. Upon completion of this new facility, NAS Fallon will be capable of successfully accepting,
treating, and disposing of wastewater flows up to 1 MGD for the foreseeable future.
The new facility will be composed of a full array of wastewater treatment processes. Influent wastewater
flows will be collected in wet and dry well system at the mouth of the facility. From there, flows will be
pumped through a coarse and fine screening process to remove large debris. Following screening, water
will enter an aerated grit chamber for high rate particle removal to promote water clarity. Next, a stepfeed
biological nutrient removal process will be utilized to remove nitrogen and phosphorus content in
order to meet effluent regulations. Then, circular sedimentation tanks will allow for any residual solids
to be removed. Finally, the wastewater will pass through disinfection where viruses and bacteria will be
managed before the water leaves the facility. Similar to the existing facility, effluent water will be
discharged into the drain system feeding the Stillwater Nation Wildlife Refuge.
Full considerations regarding design alternatives and cost effectiveness were analyzed during the design
process for this facility. The following proposal holds the summation of that analysis.
Permanent link
http://hdl.handle.net/11714/667Additional Information
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