If you live in Palos Verdes Estates, Redondo Beach, or Hermosa Beach, chances are your trash is processed by Athens Waste Management. I recently attended a briefing by a team from Athens about their goal to separate out recyclable material as much as possible to exceed state requirement for material diversion from landfills. You can watch a video of their state of the art Material Recycling Facility (MRF) here. The facility uses size, aspect ratio, density, magnetic properties, conductivity, and optical properties of the waste to separate destination streams to optimize re-use.
If you are interested in learning more, let us know. Athens has offered to either brief other groups or to host a tour of their Sun Valley MRF.