초록 ▼

A biofilter for the removal of contaminants from gas streams disclosed. The biofilter makes use of a series of modular trays, each containing a gas-contacting medium for removing at least one contaminant from the process stream. The trays have a modular design that allows them to be sealingly stacke

A biofilter for the removal of contaminants from gas streams disclosed. The biofilter makes use of a series of modular trays, each containing a gas-contacting medium for removing at least one contaminant from the process stream. The trays have a modular design that allows them to be sealingly stacked and to be configured to allow series, parallel or series-parallel flow through the biofilter.

대표청구항 ▼

A filter for the removal of contaminants from a gas stream, the filter comprising: a plurality of stackable trays each constructed and arranged to define a region for containing a gas-contacting medium, and each tray sealingly engaging the immediately adjacent trays, each of said trays comprising a

A filter for the removal of contaminants from a gas stream, the filter comprising: a plurality of stackable trays each constructed and arranged to define a region for containing a gas-contacting medium, and each tray sealingly engaging the immediately adjacent trays, each of said trays comprising a bottom portion with a peripheral side wall extending therefrom, the bottom portion and side wall defining the region for containing the gas contacting medium, the peripheral side wall having upper and lower edges each constructed and arranged to allow a seal between adjacent trays when such trays are stacked, and a plenum formed in the bottom and side wall of the tray; at least one of said trays being a gas inlet tray, each gas inlet tray having a gas inlet incorporated therein, said inlet communicating with the plenum of the gas inlet tray and the plenum of the gas inlet tray communicating with said region containing the medium; at least one of said trays being a gas outlet tray, each gas outlet tray having a gas outlet incorporated therein, said outlet communicating with the plenum of the gas outlet tray and the plenum of the gas outlet tray communicating with said region containing the medium, a single tray being capable of functioning as both a gas inlet tray and a gas outlet tray; and wherein at least one of said trays contains a gas-contacting medium in said region for purifying a gas stream, and further wherein for each tray, each of the bottom portion, peripheral side wall, and plenum is an integral portion of a molded one-piece structure.