PLYMOUTH SEWERAGE TREATMENT WORKS – 350K Contract Ondeo-Degremont This contract, placed by Degremont, was for the supply & installation of pre treatment vessels, 500mm diameter stainless pipe work, and a “Densadeg” scraper and filtration system at a sewage treatment facility for South West Water. The 9m dia x 6m high x 14m long tank was prefabricated in sections and delivered under police escort to Plymouth for us to finally erect, weld and paint. The scheme will reduce the level of contamination of the sewage pumped out to sea to within levels set by the EU.		Treatment tanks at Plymouth under final construction
		Densadeg under construction and flash mixer tanks being craned into structures