Barry A. Perlmutter is currently President and Managing Director of BHS-Sonthofen Inc., a wholly-owned subsidiary of BHS-Sonthofen GmbH. BHS is a manufacturer of filtration, washing and drying technologies. Barry has over 35 years of technical engineering and business marketing experience in the field of solid-liquid separation including filtration, centrifugation and process drying. His new book, Handbook of Solid Liquid Filtration, published in February 2016, is part of a Chemical Engineering series by Elsevier, UK. He received a BS degree in Chemistry from Albany State (NY) University, MS degree from the School of Engineering at Washington University, St. Louis and an MBA from the University of Illinois.