case study: city of sunrise beach wwtp -...
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rwlwater.com
Case Study: City of Sunrise Beach WWTP
Packaged Wastewater Treatment Plant
Project: City of Sunrise Beach WWTP
Location: Sunrise Beach, Missouri, USA
Client: City of Sunrise Beach
Technology: Advanced Extended Aeration with Nitrification/Denitrification and Rapid Sand Tertiary Filtration
Solution: Wastewater Treatment System; Domestic Wastewater
BackgroundSunrise Beach is a very small city located on the shores of the Lake of the Ozarks in Central Missouri. The city is a popular vacation destination in the summer months. The city’s original and very basic wastewater treatment system was not able to keep up with increased stringent effluent requirements. In addition, the system was unable
to effectively manage the increased flow during the summer months, when flow increases by 100%.
The city needed a larger system that could effectively treat the effluent so that the treated water could be discharged into the Lake of the Ozarks.
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TechnologyThe City of Sunrise Beach chose RWL Water to provide a packaged wastewater treatment system that treats up to 50,000 Gallons Per Day (GPD). The system is a dual-train design that provides advanced wastewater treatment during periods of fluctuating influent flows. After the flow equalization process, the flow is split between two treatment trains, each comprised of a pre- and post-anoxic chamber, sludge-holding chamber, aeration chamber, and clarifier. There is also a stringent effluent ammonia limit required of this system. After the secondary treatment phase, the waste stream enters the tertiary filter. The tertiary filter system includes
a biological screening process which is used to achieve further Total Suspended Solids (TSS) reduction compared to a tertiary filter alone. RWL Water provided a fiberglass building, pre-fitted and wired, with all of the blowers and controls, saving the contractor time and money during the installation.
By providing a dual-train system, the operator can isolate one train during the winter to treat the 25,000 GPD flow rate and use both trains in the summer months when the population increases. This design provides a higher degree of treatment, operational flexibility, and significant energy savings.
Case Study: City of Sunrise Beach WWTP
RWL Water has more than 90 years of combined experience building highly successful water, wastewater, and waste-to-energy treatment solutions for diverse industries and municipalities around the world.
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Design ParametersInfluent Expected Effluent
Design Flow 50,000 GPD
BOD5 250 mg/l 10 mg/l monthly average
TSS 250 mg/l 12 mg/l monthly average
PH 6 – 9 6 – 9
NH3 - N (Ammonia Nitrogen) 25 mg/l 0.6 mg/l
FOG 15 mg/l 10 mg/l