Meadowbrook-Limestone

Area served: Portions of Syracuse, Village of Manlius, Village of Fayetteville, and towns of Manlius and Dewitt.

Treatment: Conventional activated sludge with phosphorus removal and nitrification. Anoxic zones added at head end of each aeration tank in 1994 for filament control to improve settling in final clarifiers.

Plant facts

Plant is able to effectively nitrify all year. Typical influent: Volume = 4.5 MGD
CBOD₅ = 121 mg/L
TSS = 169 mg/L
TP = 4.2 mg/L
TKN = 25.9 mg/L (from 10/1/2001 to 9/30/2002 laboratory analysis results)

Specifications

Effluent water pump

Design values: Volume = 6.5 MGD
BOD₅=9,200 lb/day
TSS=10,800 lb/day

Grit chambers (2)

16´-6´´ long 10´ wide 10´ S.W.D.
13,844 gal/side (27,688 total)

Aeration tanks (2)

180´ long 60´ wide 14.33´ S.W.D.
1,157,635 gal/side (2,315,270 total)

Settling tanks (2)

75´ diameter 10´-6´´ in depth
350,101 gal/tank (700,203 total)

Chlorine contact tanks (2)

67´-8´´ long 24´-4´´ wide 10´ S.W.D.
123,742 gal/side

Outfall

15´-6´´ long 6´ wide 10´ S.W.D. 936 ft³

Digesters (2)

140´ long 70´ wide 15 S.W.D.
1,099,560 gal/side (2,199,120 total)

Principal chemicals used

Ferrous chloride (pH about 2) for TP removal; average monthly FeCl₂ consumption 10,600 gal. Sodium hypochlorite for disinfection. Anionic and cationic polymer used for solids conditioning.

Biosolids

Aerobic digester discharges biosolids at approximately 1% total solids concentration which are routed to a decant tank to remove as much water as possible prior to processing in a rotary drum thickener. Thickened biosolids are hauled by tanker to Metro for further processing in anaerobic digesters, dewatered, and treatment in the N-Viro™ process.
Date: 11/1/02