The introduction of a new ultraviolet disinfection facility at a St. Joseph, Mo., wastewater treatment plant ensures that up to 54 million gallons of water per day will be 100% clean prior to discharge into the Missouri River. The project was undertaken after it was determined that a bacterial process in place at the plant wasn't completely effective for purposes of disinfection.
An accompanying effluent pump station required excavation depths of 31 ft, prompting development of a dewatering system to prevent settlement and possible collapse of a nearby structure. System components include 70-ft-long sheet piles driven into bedrock and arranged in a circle, a configuration that limits the amount of water entering the excavation zone and requiring extraction.
St. Joseph Disinfection Facilities and Effluent Pump Station, St. Joseph, Mo.
Owner City of St. Joseph
General Contractor Garney Construction, Kansas City, Mo.
Designer Black & Veatch, Kansas City, Mo.