EFFLUENT TREATMENT FACILITY PEROXIDE DESTRUCTION CATALYST TESTING

DL, HALGREN

Hanford Site (Wash.)

关键词: Removal;    Reducing Agents;    Membranes;    Activated Carbon;    Functionals;   

DOI  :  10.2172/935398
RP-ID  :  HNF-38408 Rev 0
RP-ID  :  [e-mail]
RP-ID  :  935398

美国|英语

来源: UNT Digital Library

【 摘 要 】

The 200 Area Effluent Treatment Facility (ETF) main treatment train includes the peroxide destruction module (PDM) where the hydrogen peroxide residual from the upstream ultraviolet light/hydrogen peroxide oxidation unit is destroyed. Removal of the residual peroxide is necessary to protect downstream membranes from the strong oxidizer. The main component of the PDM is two reaction vessels utilizing granular activated carbon (GAC) as the reaction media. The PDM experienced a number of operability problems, including frequent plugging, and has not been utilized since the ETF changed to groundwater as the predominant feed. The unit seemed to be underperforming in regards to peroxide removal during the early periods of operation as well. It is anticipated that a functional PDM will be required for wastewater from the vitrification plant and other future streams. An alternate media or methodology needs to be identified to replace the GAC in the PDMs. This series of bench scale tests is to develop information to support an engineering study on the options for replacement of the existing GAC method for peroxide destruction at the ETF. A number of different catalysts will be compared as well as other potential methods such as strong reducing agents. The testing should lead to general conclusions on the viability of different catalysts and identify candidates for further study and evaluation.