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Village of Kingsley WWTP
Operation, Maintenance and Management
Began Operation June 2005Began Operation June 2005
First Aero-Mod System in Michigan
C ti Fl PContinuous Flow Process
Two Stage Extended Aeration Process
Groundwater Discharge
Design Flow: 0.200 MGD
Design Loading
BOD5: 240 mg/l
Ammonia-N: 30 mg/lAmmonia N: 30 mg/l
C rrent A erage Flo 0 100 MGDCurrent Average Flow: 0.100 MGD
Maximum: 0.123 MGD
Minimum: 0.089 MGD
Influent Characteristics
•BOD5: 180 mg/l5
•COD: 250 - 500 mg/l
•TSS: 100 – 160 mg/lTSS: 100 160 mg/l
•T. Phosphorus: 4.5 – 6.5 mg/l
Ammonia N 25 46 mg/l•Ammonia-N: 25 – 46 mg/l
•Temperature: 6 - 22° C
Effluent Permit Parameters
•TIN: 5 mg/l
•Sodium: 150 mg/l
•Chloride: 250 mg/lChloride: 250 mg/l
Monitor Well Permit ParametersMonitor Well Permit Parameters
•T. Phosphorus: 1 mg/l
Start Up Issues
•Influent BOD5 was lower than expected5
•Process achieved complete nitrification
•Not enough BOD5 remaining to denitrify to lessNot enough BOD5 remaining to denitrify to less than 5 mg/l
•We expected we would need to add BOD5(ethylene glycol) to the influent
•Discussed the problem with Aero-Mod Process Engineer Todd Steinbach
•Aero-Mod came up with a fix using automatic valve modification that alternates the first and second stage aerationg
•Aero-Mod provided the valves
•WTOS provided the labor to complete the•WTOS provided the labor to complete the modification
Effluent Range
BOD5: <10 - 20 mg/l5
COD: 50 - 90 mg/l
TSS: 4 – 12 mg/lTSS: 4 12 mg/l
T. Phosphorus: 0.7 – 2.0 mg/l
TIN 0 2 4 5 mg/lTIN: 0.2 – 4.5 mg/l
Sodium: 60 - 150 mg/l
Chlorides: 110 – 220 mg/l
Question and Answer
Your Turn to Askto Ask
Questions