" From: Archimedes <Freedom@xxxxxxxx> " " " >[] " " " Actually, normal antifreeze *is* treatable by almost all municipal " waste systems; and it's also biodegradeable. " " http://www.purdue.edu/envirosoft/housewaste/house/antifrze.htm " " http://www.cdphe.state.co.us/hm/hhw/howto/antifreeze.htm " " Ethylene glycol (and the new-tech, safer alternative propylene gycol) " is produced from natural gas. If dumped on the ground and thus " returned to the environment, it does create a toxic "plume" wherever " it lands; but once again it is biodegradeable -- within six to eight " months, nature will have reclaimed its components. except for heavy metals dissolved in it, if there are any. i've noticed an apparent retreat from the pink propylene glycol back towards the green ethylene glycol recently. while it doesn't affect environmental biodegradability, us higher forms of life are affected. there's a company that pushes propylene glycol as a coolant, whose name escapes me. i do recall that the founder published a scientific paper [the real thing] on research showing that 10% propylene glycol rendered ethylene glycol completely nontoxic. one dirty little secret of biodiesel is the massive amounts of glycerine that's produced as a byproduct. if all current users of #2 diesel / heating oil could switch to biodiesel [not that we could grow or make that much], the byproduced glycerine would flood existing markets for it 100x over, and you wouldn't be able to give it away. research is just starting to find what else it could be used for. antifreeze maybe? even that wouldn't make much of a dent. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list