84-06: Chlorine Dioxide Solves Biofouling Problems in a Refinery Cooling Tower History of Cooling Towers

84-06: Chlorine Dioxide Solves Biofouling Problems in a Refinery Cooling Tower History of Cooling TowersA large refinery uses wastewater effluent for cooling tower make up to use the tower as a phenol reduction system through biological oxidation. Severe Biofouling of critical overhead exchangers reduced plant throughput. This paper details application procedures that use chlorine dioxide to greatly reduce biofouling without affecting the phenol destruction capabilities.

Our Cooling Tower Contractor removed the under-performing fill and replaced it with high performance fill packs

in wet-dry mode and zero visible plume in dry mode

and film cooling designs

Oxidation of the phosphonates to phosphate by cerium IV ion is accomplished without heating

The method has been proven reliable for determining viable cell concentrations of Legionella pneumophila

The relationship of pH

It will discuss aftermarket changes that make things worse

In such situations

These materials won rapid acceptance in industry because of their strong threshold effect and their high level of hydrolytic stability

and operations

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The instruments tested varied widely in their capabilities