CEP: September 2012 This month's cover story focuses on bio-based materials for biomedical implants. Other topics include selecting heat exchanger tube inserts; handling acids and caustics safely and discrete element method modeling. Also, read about new developments in biotechnology, materials, and energy. Editorial If you saw my last two editorials, you probably noticed the sustainability theme — “On the Path to Sustainability” in July, and “AIChE’s Path to Sustainability” in August. Through our work as chemical engineers, we have the potential to make significant positive impacts on sustainability. There’s also much we can do as individuals. Read More Share Bio-Based Materials Step into the Operating Room September2012On The HorizonSujata K. Bhatia, M.D., P.E.A new class of implantable medical materials — constructed from naturally derived and renewably sourced polymers — is poised to transform clinical medicine. Using DEM to Solve Bulk Material Handling Problems September2012Computational MethodsRahul BharadwajThe discrete element method (DEM) models the behavior of individual particles to provide insight into the behavior of the bulk material. AIChE’s ScaleUp: A Win-Win for Students and Industry September2012Special SectionScaleUp is a program launched in 2007 to strengthen connections between industry and chemical engineering students. Through corporate sponsorships, ScaleUp offers free AIChE membership to over 15,000 chemical engineering students at over 160 U.S... Selecting Tube Inserts for Shell-and-Tube Heat Exchangers September2012Back To BasicsRichard L. Shilling, P.E.A tube insert modifies flow stream characteristics to enhance heat transfer. Here’s how to choose the optimal insert to meet process requirements. Handle Corrosive Acids and Caustics Safely September2012SafetyRichard W. Prugh, P.E., CSPUnderstand the corrosivity hazards of acids and caustics, and follow these guidelines to manage those hazards through inherently safer design, engineering and administrative controls, and personal protective equipment. Copyright Permissions: Would you like to reuse content from CEP Magazine? It’s easy to request permission to reuse content. Simply click here to connect instantly to licensing services, where you can choose from a list of options regarding how you would like to reuse the desired content and complete the transaction.