| 摘要 |
A modular insert for curb-inlet storm drains creates a composite collection system for trash and for oil or other hydrocarbons and related chemicals. A hopper (110) contains a multitude of irregular, macroscopic fragments (130) of a hydrophobic, compliant, oil-absorbent, copolymer material having high surface area. Preferably, the material is formed with a binder in a novel extrusion process. The fragments are held in place by a removable bottom plate (140), which allows replacement of the filtering fragments (130) , and an internal basket (120). Trash and debris are collected in the internal basket (120). The hopper (110) is configured to be suspended in a storm drain (100) adjacent to a curb inlet on a bracket and can be installed or serviced through a conventional manhole entry. The hopper (110) has side cutouts (116, 117) that permit lateral overflow from one of the modular units to an adjacent one. |
