| 摘要 |
A shallow, elongate, portable sewage containment vessel can be positioned at ground level adjacent to one or more relocatable buildings at wellsites and construction sites to receive domestic or industrial waste liquids from the buildings by gravity drainage. The roof member of the vessel has an elongate slot for snugly receiving an insert member made of a plastic or other readily drillable material. Holes may be drilled in the field at any convenient location in the insert member so that inlet piping from the sewage outlets of one or more buildings can be connected to the vessel. The vessel also has a connection for a vacuum truck or other equipment for removing the sewage from the vessel. When the buildings are moved from the site, the containment vessels may be drained and then conveniently moved from the site, to be cleaned as appropriate and installed on a different site as desired. The insert members that were drilled to receive sewage piping may be discarded and replaced with new insert members for the vessels' next use.
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