Digital Commons Network^™

Reuse Of Municipal Wastewater As Makeup To Circulating Cooling Systems, D. Goldstein, Irvine Wei, R. Hicks

Irvine W. Wei

The reuse of municipal wastewater for industrial cooling is an excellent way of preserving clean waters for other uses. Details have been collected from several countries and there is no doubt that this is a thoroughly practical reuse option.

Makeup waters successfully used fall in the range 10-30 mg/l BOD, 30-50 mg/l o-PO₄, 1000-1500 mg/l TDS and 30-70 mg/l NH₃. The major problems are phosphate scale and biological fouling. Usual treatments are lime clarification and chlorination.

Most of the industrial users are power plants, which use high alloy metals to avoid corrosion, but industries using carbon-steel heat exchangers have not …

Mechanism And Kinetics Of Oxidation Of 2,4,6-Trichlorophenol By Fenton's Reagent, Somnath Basu, Irvine Wei

Irvine W. Wei

Fenton's reagent is an effective oxidant for pretreatment and toxicity reduction in wastewater contaminated with 2,4,6-trichlorophenol (TCP). The reaction, and its dependence on various parameters (e.g., molar ratios of the reacting chemicals, pH, temperature, etc.) have been reported elsewhere. In this paper a mechanistic interpretation of the reaction pathway, with identity of the intermediate reaction products, has been presented. An empirical expression for the rate of reaction has also been proposed in terms of the disappearance of TCP in water, as a function of the concentrations of the TCP itself and of the oxidant, hydrogen peroxide.