LocationAccokeek, Maryland 20607-9767
MarketWastewater Treatment Plants
COMPLETE GRIT ELEVATOR REBUILD, BUCKET & CHAIN REPLACEMENT, DRIVE SYSTEM, WASH-WATER SYSTEM, CONTROLS, TESTING & COMMISSIONING.
Johnston Construction Company
- Johnston Construction Company served as Prime Contractor for the substantial turnkey rebuild of existing Grit Bucket Elevator No. 1 at the Piscataway Wastewater Treatment Plant.
- Rebuilt the existing three-shaft continuous-bucket grit elevator system used to lift collected grit from the screw-conveyor hopper and discharge it by gravity to the grit washer.
- JCC coordinated removal of the existing components being replaced and installation of the new bucket-elevator equipment within the existing wastewater-treatment facility.
- Furnished and installed malleable iron grit buckets attached to a corrosion-resistant steel-reinforced urethane elevator chain in accordance with the WSSC contract requirements.
- Rebuilt major mechanical components including the headshaft, upper idler shaft, lower footshaft, sprockets, drive assembly, gear reducer, chain-tightening system, bearings, receiving/discharge trough, and associated guards and supports.