Hood for Preventing the Discharge of Debris from a Wastewater Collection Basin

摘要

An oil and debris separation hood mounts on the interior surface of a wastewater collection basin to cover the outlet opening and prevent hydrocarbons, debris and other pollutants from being discharged from the collection basin. The hood device includes a rounded body portion formed with a mounting flange extending along the back side of the hood device from a bottom edge and over the top portion. The upper portion of the hood device includes an access port closed by a sealable lid to provide access to the outlet pipe without removing the hood device from the collection basin. The top portion of the mounting flange is formed with a built-in vent opening that allows the pressure within the hood device to be equalized to the ambient air. The hood device can be formed from plastic sheet material through thermoforming techniques, and includes strengthening ribs and a hand grip.

主权项

1. An apparatus for mounting around an outlet of a wastewater collection basin which receives wastewater carrying pollutants having a specific gravity that is lower than that of water so as to float on the water, comprising:
a body having a rearward mounting flange and defining an interior cavity terminating at a bottom periphery flange as an opening into said interior cavity, said mounting flange being connected to and sealed against said wastewater collection basin to force the movement of wastewater underneath said bottom periphery flange to enter said outlet; and a vent formed in said mounting flange at a top portion thereof so as to be located above said outlet when said apparatus is mounted to said wastewater collection basin to provide equalization of air pressure between said interior cavity and said collection basin.