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- W2023985668 abstract "Allied-Signal manufactures phenol, a precursor for nylon 6, at its plant in Philadelphia, Pennsylvania. During this process wastewater is generated which is discharged to a POTW (Publicly Owned Treatment Works). The wastewater discharged has to meet the Organic Chemicals, Plastics, and Synthetic Fibers (OCPSF) pretreatment standard as defined as defined in the U.S. EPA regulation 40 CFR 414. In order to reduce concentrations of the various waste products, several technologies were evaluated including biological treatment, UV oxidation, and air stripping. Air stripping (or desorption) was initially rejected because it could not remove phenol to the desired level. Phenol has a low volatility which makes it difficult to strip. During the regulatory process, phenol was remanded from the list of OCPSF regulated chemicals. Therefore, air stripping was reevaluated as a treatment alternative. Additional studies showed that air stripping was the most cost effective method for removal of the regulated chemicals as well as a large percentage of the other volatile constituents. A thermal oxidizer was selected to destroy the organic compounds in the vapor stream from the air stripper column. Pilot studies were conducted to confirm literature values for the mass transfer coefficient of the components. The pilot data were then used to size the full scale stripper. The thermal oxidizer was designed using previous experinece with handling similar compounds. Because of the high flow rates, heat recovery was added to minimize fuel cost. The equipment selection was based on cost effectiveness. The paper will discuss the various issues encountered during the selection of the treatment process." @default.
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- W2023985668 date "1991-08-01" @default.
- W2023985668 modified "2023-09-25" @default.
- W2023985668 title "Selection of treatment process to meet OCPSF limitations" @default.
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- W2023985668 doi "https://doi.org/10.1002/ep.670100323" @default.
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