Abstract: Implementations disclosed herein provide a dry chemical scrubber with a pH regulator that adjusts an internal pH value of the dry chemical scrubber by adding high pH elements to the contents of the dry chemical scrubber on a continuous or periodic basis.

Abstract: A portable odorous gas filter may provide for substantially even distribution of byproduct gas throughout a containment vessel by utilizing a diffuser plate having a plurality of holes therein. Byproduct gas from manufacturing or treatment processes may be directed into a gas plenum layer in the containment vessel through an inlet below the diffuser plate. The geometry of the diffuser plate may provide for a high-pressure differential between the plenum layer below the plate and a filter layer containing an odor-filtering media above the plate. Certain types bacteria and/or fungal strains may be added to extend the effective life of the biological media used therein.