Satya P. Chauhan

Electro-Acoustic Dewatering (EAD) a Novel Approach for Food Processing, and Recovery

Abstract Separation of liquids from fine particle suspensions plays an important role in many industrial processes. In the past few years a number of technologies have been developed for the separation of slurries with coarse particle suspensions and intermediate particle sizes. However, separation of fine particles from their suspensions can be difficult and prohibitively costly. Battelle has developed a solid/liquid separation technology that utilizes differences in electro-kinetic and acoustic properties to enhance the efficiency of conventional solid/liquid separation techniques such as vacuum filters or presses. This method can dewater colloidal stable suspensions better than conventional techniques. Typical applications of this technology to food processing will be presented. Mechanisms involved during separation will also be discussed.

Laboratory Testing and Field Demonstration of an Environmentally Benign and Reduced Corrosion Runway Deicing Fluid

This Report is a work prepared for the Environmental Security Technology Certification Program. In no event shall either the United States Government or Battelle have any responsibility or liability for any consequences of any use, misuse, inability to use, or reliance on the information contained herein, nor does either warrant or otherwise represent in any way the accuracy, adequacy, efficacy, or applicability of the contents hereof. Note: this work was originally classified as Sustainable Infrastructure (SI) project SI-0924. In August 2010, after the testing had been completed and this report drafted, the project was transferred to the Weapon Systems and Platforms Projects (WP) area and the project re-numbered WP-0924. Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden This report presents the findings from a full-scale side-by-side demonstration of Battelle Runway Deicing Fluid (RDF) versus conventional potassium-acetate based RDF. The tests were conducted on a closed section of the Wright-Patterson Air Force Base runway using full-scale fluid application trailers. Anti-icing and deicing performance was based on runway friction rating, a measure of surface slipperiness, and holdover time. The two Battelle fluids tested met all acceptance criteria including lower aquatic toxicity (acute and chronic), similar oxygen demand, lower corrosion of aircraft components (cadmium-plated parts and carbon-carbon brake pads), and comparable runway friction and holdover time. A life-cycle cost analysis indicated that Battelle-RDFs were more cost effective due to lower fluid cost, lower maintenance costs due to reduced metal corrosion and braking system damage. Battelle-RDF 6-4 formulation sold by Basic Solutions GHG Green house gas HOT Hold over time IC 25 Inhibition concentration, calculated percentage of effluent at which the test organisms exhibit a 25% reduction in a biological function such as reproduction (as in the case of daphnids) or growth (as in the case of fish) KAc Potassium acetate KFo Potassium formate LC 50 Lethal concentration where 50% of organisms die LCC Life cycle costs LRB The members of the project team (minus the authors and the ESTCP staff) and their contributions are presented in Appendix A. Currently the DoD exclusively uses potassium acetate (KAc) based runway deicing fluids (RDFs) …