The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers and bio-based or biodegradable polymers compatibilized with styrene-based copolymers block copolymers, maleated SEBS, styrene-maleic anhydride copolymer, styrene-methyl methacrylate copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. A separator with a separator wheel is located in the upper housing segment along with a carrier gasproduct inlet, and a carrier gasfines discharge. The CMDB administrator is thus relieved from having to understand in detail the technologies and interfaces used by the Management Data Repository sources. Processes for preparing polymer clay nanocomposite powders and use of these powders as plastic resin and plastics additives are also disclosed. By timing this intermittent suctioning with patient expiration, the suctioning flow will be in the same direction as patient breathing.