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76-13: Electrochemical Destruction of Chromate and Zinc From Cooling TowerChromates are generally destroyed to trivalent chromium by addition of chemical reducing hydroxide sludge that can be readily removed from the waste stream. Sulfur dioxide and ferrous sulfate are the reducing agents that are commonly used. Alkalis, such as slaked lime, sodium carbonate, or sodium hydroxide, are commonly used for precipitating trivalent chromium. Other methods reported in the literature for the destruction, removal, recovery, or reuse

Two non-traditional examples of water reuse are presented

” The author presents his recommendations for the types of information you need to make a good decision and provides case histories and documentation for the material presented

Covers the classification materials of construction

The Centers for Disease Control (CDC) requires a spread-plate culture legionella test during investigations of a known or suspected outbreak of Legionellosis

An emergency technology is water recovery based on the high-efficiency reverse osmosis (HERO™) technology

Cooling technology providers are challenged to develop sound cybersecurity plans to ensure that both their own internal systems and their clients' systems are protected

In this discussion

a combination of equipment and controls

Results confirmed that the technology delivered an average 20% reduction in make-up water and 48% reduction in blow-down wastewater

Both methods were employed at the same location during a recent test program

There will also be a brief review of the Denver Water Board's time schedule for water rate increases and their overall program for water conservation

it is the choice of cooling system that frequently mediates this conflict

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