초록 ▼

An insert for use in a sewer system to remove oils and solvents carried by surface water runoff. The insert includes a holder and a quantity of water permeable, hydrophobic, oil and solvent absorbing material such as melt blown polypropylene. The holder has two functions. It holds an effective quant

An insert for use in a sewer system to remove oils and solvents carried by surface water runoff. The insert includes a holder and a quantity of water permeable, hydrophobic, oil and solvent absorbing material such as melt blown polypropylene. The holder has two functions. It holds an effective quantity of the absorber and holds it in such a way that the surface water is exposed to the absorber to allow oils and solvents to be absorbed. The insert in preferably placed, cartridge-like, at the inlet or outlet of the sewer system so that it may be quickly checked, replaced and serviced. In one embodiment, the insert also contains a leaf trap.

대표청구항 ▼

1. A device for use in a sewer system, said sewer system including a grated drain, comprising:an absorber; a holder containing said absorber; and means for attaching said holder to a grate of a grated drain, said grate having openings, said holder being a mesh bag including plural grommets for recei

1. A device for use in a sewer system, said sewer system including a grated drain, comprising:an absorber; a holder containing said absorber; and means for attaching said holder to a grate of a grated drain, said grate having openings, said holder being a mesh bag including plural grommets for receiving said attaching means, wherein said attaching means is threaded through said plural grommets and through said openings to fasten said mesh bag to said grate. 2. The device as recited in claim 1, wherein said absorber is melt blown polypropylene.3. The device as recited in claim 1, wherein said absorber is made of a combination of melt blown polypropylene and activated carbon.4. The device as recited in claim 1, wherein said absorber is selected from one or more of the following materials: melt blown polypropylene, activated carbon, universal polypropylene, and polystyrene plastic.5. The device as recited in claim 1, further comprising a trap for catching large particles that is removably attached to the top of said grated drain.