Process Economics for Water Purification: A Comparative Assessment
A preliminary comparative examination is made between a known water purification technology (activated carbon adsorption), an emerging photoprocess technology (photolytic ozonation), and an hypothetical photocatalyzed process. The example feed stream is contaminated with particulates and a non-volatile halocarbon (PCB example). The process comparisons assume a common pretreatment section for all three processes. Conditions under which heterogeneous photocatalysis may be competitive are indicated.
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