Full Description

Productivity and water quality from the Roy W. Likens membrane facility in Palm Coast, Florida, were accurately simulated by three membrane pilot plants in a four-month field investigation using various sizes of a film membrane manufactured by the same company and operated under the same conditions. All plants used the same source water, groundwater that is moderately hard (330 mg/L as CaCO3) and highly organic [11 mg/L non-purgeable dissolved organic carbon, 336 trihalomethane formation potential (THMFP), 227 ug/L haloacetic acid formation potential (HAAFP)]. All pilot units were built and operated according to standards in the Information Collection Rule (ICR). The average finished water quality for all membrane plants was 0.4 mg/L total organic carbon as C, 35 ug/L THMFP, and 28 HAAFP. For the full-scale plant, membrane productivity decreased by 50 percent during five years. A second-order resistance model more accurately described productivity over time than did a zero-order direct mass transfer model, although both models produced statistically significant results. These results demonstrated that full-scale plant performance could be accurately scaled up from single-element or multistage pilot plants as specified in the ICR protocol. Includes 20 references, tables, figures.

Product Details

Edition: Vol. 91 - No. 6 Published: 06/01/1999 Number of Pages: 12File Size: 1 file , 930 KB