Calendar: June and July 2011
| By Chemical Engineering
NORTH AMERICA
AWMA Annual Conference & Expo. Air & Waste Management Assn. (Pittsburgh). Phone: 412-232-3444; Web: awma.org
Orlando, Fla. June 21–24
BioPlastek 2011. Schotland Business Research (Skillman, N.J.). Phone: 609-466-9191;…