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77-14: Hexavalent Chromium Reduction in Cooling Tower Blowdown-Evaluation ofThe heavy metals content of wastewaters is being regulated in many areas of the world. In particular, the concentration of chromium which can be discharged in effluents is being severely restricted. The EPA has imposed a 0. 25 mg 1 total chromium limit on gas plant effluents in Texas.

Committee in 1958

This work indicates subtle differences in the activity of various bromine-biocides and provides guidance for the development of effective microbiological treatment strategies for industrial cooling systems

Other significant geometrics have now been lab tested and field evaluated with outstanding results

This paper describes how the application of a newly developed high cycle cooling water treatment program directly resulted in a substantial savings in water use and overall cooling water treatment costs while maintaining scale and corrosion control

discussions of potential environmental issues usually focus on water intake or wastewater discharge concerns

a cross section of process industry plants are reviewed in the terms of the impact of the cooling tower return temperatures on recovered products

safety compliance

designed for plume abatement

This paper covers the mechanisms of this type of attack

more stringent restrictions on permitted discharge consents and/or increased cost or reduced availability of good quality water have emerged or developed in some parts of the world

it is necessary to understand the basic principles for formation of the plume

Cooling towers are designed to achieve the specified cooling capacity at the highest ambient wet bulb temperatures for the area in which it will be operated

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