An equilibrium model for chloride removal from recycled cooling water using the ultra-high lime with aluminum process.

作者: Ahmed Abdel-Wahab , Bill Batchelor , Jon Schwantes

DOI: 10.2175/106143005X73956

关键词:

摘要: Removal of chloride from recycled cooling water is needed to reduce corrosion and prolong equipment life. Laboratory experiments have demonstrated that the ultra-high lime with aluminum (UHLA) process has ability achieve high removal efficiency water. In an effort. further understand behavior in UHLA process, a fundamental model chemical processes was developed. The purpose this paper describe equilibrium present values for solubility products precipitated solids not been investigated previously. based on PHREEQC new program called INVRS K integrated calculate unknown or poorly defined kinetic constants using Gauss-Newton nonlinear regression routine. Model predictions indicated results could be best described by assuming formation solid solution calcium chloroaluminate (Ca 4 Al 2 Cl OH 1 ), tricalcium hydroxyaluminate 3 tetracalcium ). Water Environ. Res., 77, 3059 (2005).

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