Skaket Corner Wastewater Treatment Plant

Skaket Corner Wastewater Treatment Plant

Total Nitrogen Removal For High Strength Commercial Wastewater

Orleans, Massachusetts is one of several Cape Cod towns that continues to experience significant growth without conventional sewer infrastructure. When a developer wanted to build a new commercial plaza adjacent to the town’s off ramp from the Mid-Cape Highway the Massachusetts Department of Environmental Protection (MADEP) required that a wastewater treatment and disposal facility be installed onsite to protect local groundwater.

Anchored by Shaw’s supermarket, CVS Pharmacy, Hallmark and Radio Shack this commercial center generates up to 20,000 gallons per day (gpd) of moderate to high strength wastewater. The system was permitted under Massachusetts Groundwater Discharge (GWD) pollution control regulations requiring the system to meet a standard of < 10 mg/l total nitrogen.

The project engineer selected an AquaPoint Bioclere™ treatment system for its proven nitrification & denitrification performance capability, energy efficiency, ease of operation and small footprint. The Bioclere units are preceded by a pre-aeration stage to condition the high strength wastewater and to strip off volatile organic compounds (VOCs) which can impair treatment efficiency if present in high concentrations. Effluent from the plant is discharged through a conventional pressure dosed drain field.

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Design Characteristics

 DESIGN FLOW (GPD)20,00020,000
BODs (mg/I)600< 30
TSS (mg/I)300< 30
TKN (mg/I)75
AMMONIA-N (mg/I)60< 2
NITRATE-N (mg/I)< 5
TOTAL-N (mg/I)< 10
FECAL (MPN/100mI)< 200

Performance Data

  • System Commissioned: December 2006
  • Detectable Limit for BOD & TSS: 2mg/l
  • Data Source: MA DEP Records
DATEBOD5 (mg/l)TSS (mg/l)TN (mg/l)
JAN. 20193.002.005.34
FEB. 20195.002.003.00
MAR. 201912.002.003.00
APR. 20198.006.004.00
MAY 20196.0010.003.85
JUN. 201928.0016.005.00
JUL. 20199.008.006.40
AUG. 201935.0029.006.57
SEP. 20192.502.004.13
OCT. 20193.402.003.90
NOV. 20193.702.007.08
DEC. 20199.608.505.60


System Diagram