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Unread 09-19-2005, 08:22 PM   #37
Ice Czar
Cooling Neophyte
 
Join Date: Sep 2001
Location: High Altitude Lab
Posts: 94
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Quote:
Originally Posted by unregistered
BTW, fill the lines with a soln that won't mold, eh ?
(I use a HydrX soln to fill and bleed the lines, with isolation and bleed valves at the DUT)

I just had another battle with algae, that I lost, again
multiple big tanks of warm water, pumps, hoses, valves - all to be cleaned (ASME pump test setup)
"Algae Destroyer Liquid" (0.6% Simazine) @ 1 tsp/10gal is crap, precipitates and dosen't work
going to treat as a swimming pool, clorox

http://www.sciencedaily.com/releases...0917085551.htm

Quote:
Regarding the technology developed, it consists of a system based on low-intensity, high-frequency ultrasounds which, together with the introduction of micro-bubbles of air, produce an effect of photo-sonoluminiscence. The concentration of ultrasounds by constructive interference generates a pressure front that produces a decompression of the gases dissolved in the water. This wave front produces a luminous plasma around the bubbles, as well as high pressure and temperatures.

These pressures and temperatures have two effects: on the one hand, they eliminate the circulating bacteria and, on the other, they generate an oxidative stress that is transmitted throughout the water refrigeration system. This stress, together with the continuous loss of circulating bacteria throughout the system, reduces the formation of biofilm even at extremely low levels – and maintains this to such an extent that the fixing of “legionella” bacteria or any other micro-organisms needing biofilm in order to grow in the system, is impeded.
http://www.ashchem.com/ascc/drewind/ultrasonicwater.asp
http://www.sciam.com/article.cfm?art...D883414B7F0000

how a "ghetto" DIY version may be possible I dont know

not to derail the thread or anything
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