Aridair - case study - dealing with sewage in the cellar


	Dealing with sewage in the cellar
	This villa in the centre of Newcastle was undergoing extensive renovation which was nearing completion. Unfortunately, during a heavy rainstorm, a hard hat became lodged in the twelve inch sewer pipe which runs under the road outside.

			This caused a backflow which resulted in raw sewage filling a small cellar to the depth of six feet. The sewage then flowed through old service channels into the floor voids throughout the property. A detailed plan was put together by Aridair for drying and contamination containment. After discussions with loss adjusters and surveyors, it was agreed that the contamination had to be removed from the floor voids to prevent future health risks and odour problems.

	All the recently installed oak block flooring had to be lifted to access the floor voids. The work was carried out by the building contractor. The raw sewage was extracted and Aridair installed a Sorbtion moisture removal system using controlled dry heat.

	One of the concerns in dealing with sewage is that if it is allowed to dry naturally, particles can be aerosolized and spread around the building. Using microcides and chemicals have long term effects on the environment, and unless the building is thoroughly flushed, there will be ongoing problems for the occupants. Aridair dry heat at 60° Celsius for two hours eliminates the bacteria, viruses, protozoa and helminths commonly found in sewage.

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Aridair • Units 10/11 Stanfield Business Centre • Addison Street • Sunderland • SR2 8SZ • UK

Dealing with sewage in the cellar