초록 ▼

Method and apparatus for treating air containing hydrogen sulfide gas, volatile organic compounds, heavy metals and other mercaptans in order to reduce odor and corrosion related to wet wells, dry pits, grease traps and the like. The system comprises a first and second stage air treatment system. A

Method and apparatus for treating air containing hydrogen sulfide gas, volatile organic compounds, heavy metals and other mercaptans in order to reduce odor and corrosion related to wet wells, dry pits, grease traps and the like. The system comprises a first and second stage air treatment system. A vacuum pump in the primary (stage 2) treatment housing vacuums the contaminated air from the source and pumps the air through a set of diffusers into a treatment fluid wherein the air is then passed through a pair of porous plates and upward through a discharge pump and then into the atmosphere. Prior to treating the air in the primary housing, it is treated in a pretreatment dry air filter wherein the air is inlet into the pretreatment (stage 1) housing and then through a microfilter prior to being passed into the primary housing for further treatment.

대표청구항 ▼

1. An apparatus for removing odor from a contaminated airstream from a wet well, comprising: a) a first housing, a first inlet disposed on said first housing for inletting the airstream into said first housing, a first outlet disposed on said first housing for discharging the airstream from said fir

1. An apparatus for removing odor from a contaminated airstream from a wet well, comprising: a) a first housing, a first inlet disposed on said first housing for inletting the airstream into said first housing, a first outlet disposed on said first housing for discharging the airstream from said first housing;b) a filter disposed in said first housing for filtering the airstream, said filter being a dry filter, wherein said filter is disposed internal said first housing so that the airstream passes through said filter between said first inlet and said first outlet;c) a second housing, a second inlet and a second outlet disposed on said second housing, wherein said first outlet is connected to said second inlet so that said second housing receives the airstream from said first housing;d) a first and second compartment disposed in said second housing, said second compartment disposed above said first compartment, said second inlet disposed on said first compartment so that the airstream enters said first compartment and said second outlet disposed on said second compartment so that the airstream is discharged from said second compartment;e) a treatment fluid for removing odor from the airstream, wherein said treatment fluid is disposed in said first compartment;f) a plurality of diffusers disposed under a surface of said treatment fluid, wherein said second inlet connects to said diffusers so that the airstream passes through said diffusers and into said treatment fluid so that odor is removed from the airstream, wherein froth is generated as the airstream passes through said treatment fluid;g) at least one plate disposed between said first compartment and said second compartment so that said plate is above said surface of said treatment fluid, said plate having a plurality of holes therein, wherein said froth is captured on said plate so that said froth is removed from the airstream; and,h) a vacuum pump disposed in said second housing for vacuuming the airstream through the apparatus so that the airstream is conveyed from said first inlet to said second outlet, wherein odors are substantially removed from the airstream. 2. The apparatus of claim 1, said diffusers having a plurality of air discharge openings therein, wherein said openings range in size from 0.002 inch to 0.006 inch in diameter. 3. The apparatus of claim 1, wherein there are three diffusers disposed in a vertically spaced apart manner so that one is above the other. 4. The apparatus of claim 1, said plate having a plurality of slots therein, wherein said slots range in size from 0.002 inch to 0.004 inch in width. 5. The apparatus of claim 1, wherein said treatment fluid is an organic aqueous solution for removing hydrogen sulfide from the airstream. 6. The apparatus of claim 1, further comprising a first, second and third plate disposed between said first compartment and said second compartment so that said first, second and third plate is above said surface of said treatment fluid, said first plate being a solid plate so as to divert airflow outwardly, said second plate having holes disposed toward its center portion so that its outer portion is solid, and said third plate having holes disposed toward its outer portion so that its center portion is solid, wherein the airstream travels in a winding path as the airstream is conveyed from said first inlet to said second outlet.