Combined VOC mitigating and antimicrobial systems

A fluid purification apparatus for performing abatement of volatile organic compounds and pathogens in a fluid stream, the apparatus comprising;

• a plurality of reactor chambers, each having a function selected from the group consisting of volatile organic compound abatement and pathogen abatement, at least one of the reactor chambers comprising:
• (a) a fluidizable media comprising a monolithic composite photocatalyst, the monolithic composite photocatalyst comprising photoactive nanocrystals and a non-photoactive porous support for the photoactive nanocrystals, the monolithic composite photocatalyst having a N2 BET surface area from 50-600 m2/g and with attrition less than 3 wt %/h, (b) a photoreactor that contains said monolithic composite photocatalyst and through which at least a first portion of the fluid stream flows, further providing an illumination source and non-imaging optics that direct photocatalytic illumination throughout the monolithic composite photocatalyst, and (c) a mechanical means to fluidize the monolithic composite photocatalyst and contact it with the first portion of the fluid stream.

A fluid handling apparatus including a photocatalytic reactor system, comprising:

• (a) a fluidizable photocatalyst with a N2 BET surface area from 50-600 m2/g and with attrition less than 3 wt %/h, (b) a photoreactor that contains said photocatalyst, providing an illumination source and non-imaging optics that direct photocatalytic illumination throughout the photocatalyst, and (c) a mechanical means to fluidize the photocatalyst, further wherein all or a portion of a fluid stream may be directed through the photocatalytic reactor system, thereby performing abatement of volatile organic compounds and pathogens in the fluid stream.