Engineering considerations for the economic design, installation and operation of ozonation equipment for cooling water treatment

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:82983

Rice, R G ^[1]

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1. Rice International Consulting Enterprises, Ashton, MD (United States)

Once it has been decided to install ozone for the treatment of cooling water, the next step is to assure that the equipment is sized and designed for the most reliable and economical operation. Design principles are presented which have proved to be effective for ozonation systems which have been treating municipal water and wastewaters so as to maximize the reliability of equipment performance, constancy of ozone output in a fail-safe mode, minimizing power expenditures, while providing for preventive maintenance. For example, rather than purchase a single ozone generator with a second for standby, the purchaser of ozone equipment might install three ozone generators, each of which is capable of producing 50% of the required quantity of ozone. Two of these are on-line continuously, with the third off-line, allowing for planned maintenance downtime. For periods of unusually high ozone demand, on-site liquid oxygen can be made available to double the output of ozone over that available from dried air. Advantages of generating ozone from oxygen will be discussed, and finally, a novel Japanese method of generating ozone from high purity oxygen, adsorption of ozone onto silica gel or molecular sieves, recycling of the oxygen, and intermittent application of the adsorbed ozone to flowing cooling water will be described.

• OSTI ID: 82983
• Report Number(s): CONF-940222--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BIOLOGICAL FOULING
COOLING SYSTEMS
CORROSION PROTECTION
DESIGN
FEEDWATER
GAS GENERATORS
MITIGATION
OZONIZATION
RETROFITTING
WATER TREATMENT
WATER TREATMENT PLANTS