76-08: Complete Reuse of Cooling Tower BlowdownThe cost of water in the Houston area is on the threshold of becoming very expensive. Inexpensive well water currently being withdrawn from the ground has been linked with a serious land subsidence problem. This has called for converting to surface water supplies and discontinuing the use of ground water. The expense of capturing, storing, distributing, and treating surface water is high, and therefore, emphasizes minimizing the demand.

Results of the trial

Over the past several years

This paper discusses ways to reduce maintenance cost

A new monitoring and control process has been developed which measures active treatment components in current cooling water treatment programs

Surface blisters were noticed in two of the new towers after 2 to 18 months of operation

It has also shown excellent compatibility with other commonly used corrosion inhibitive chemistries

Two case studies are reported on cooling towers in a utility and a petrochemical plant

The challenge of controlling microbiological activity is often the most difficult phase of water treatment

time and good engineering skills to be able to acquire meaningful and useful data

Future power loads at the Oak Ridge Gaseous Diffusion Plant will make the disposal of chromate and zinc corrosion inhibitors in the blowdown water mandatory

Furthermore

if needed to be implemented