Re: Horizons
In reply to RC Macaulay's message of Thu, 17 Feb 2005 21:56:04 -0600: Hi, [snip] We continue to observe events in our applied research project in vortex reactors for seawater pretreatment to reduce mineral content prior to the filters ahead of the reverse osmosis membranes ( a major DeSal headache). [snip] Could you list a few of these events? Regards, Robin van Spaandonk All SPAM goes in the trash unread.
Re: Horizons
Hiya Robin, I should havestated.. "tantalizing" events. For example: One test resulted in oxidizingminerals fromdomestic city water that had a residual chlorine content. A white residue that settled perhaps 2-3 mm thick on the bottom of a 8ft dia. tank 8ft tall. Another test using extremely hard well water( no chlorine)ozidized minerals leaving a residue of2-3mm+ thick in a tank bottom of 3ft dia. 3ft tall. Tantalizing because they are random and not repetitive over a range of rotational speeds, water temperatures and diverging cone angles. We were able to put the prettiest headof foam on a pond of fresh seawater , only to have the facility manager ask us to leave since he only wanted foam on his beer ( grin). Next tests include a 3 stage cyclone separation staged reactor that can spill each stage into their respective clarifiers. Sounds likechildsplay, costs out of the kazoo, but so tantalizing. Richard Blank Bkgrd.gif
Re: Horizons
Hiya Keith, Wire draw is valve "lingo" for describing cavitation effects that damage a valve seat by a cutting action that sometimes looks like a razor blade had cut across the seat face. Valve sizing is important ,not only for flow control, but also to recognize an extreme high differential pressure across the valve invites cavitation. In valves the high pitched sound is a clue of a cavitation event. In pumps ,it soundslike marbles or gravel flowing in the volute of the pump. True about HCL. I do recall the copper pipe appeared to be " rotted" as well as " shot peened". We continue to observe " events" in our applied research project in vortex reactors for seawater pretreatment to reduce mineral content prior to the filters ahead of the reverse osmosis membranes ( a major DeSal headache). A bottomless pit where money disappears and results just tantalizing enough to stay the course. Its good we have no external research funding that requires an accounting. Its no wonder Universities become paranoid fromexplaining " we're still looking for answers" Richard Blank Bkgrd.gif
