Other

Eet Tennessee Corporation

Alois F Sferrazza

Michael E Williams

Harold D Kimrey, Jr

Ernst Schmidt

Jacky L Franklin

J Aubrey Beck, Jr

Robert D Petersen

An integrated treatment system using electrodialysis and pressure-driven membranes for deionizing and decontaminating liquids to a near-pure quality for use or reuse in industrial or municipal operations. The integrated system includes steps of pre-filtering contaminated feed liquids blending the filtered liquids in preparation for treating the mixed liquids in parallel or sequential treatment steps utilizing nanofiltration or reverse osmosis, proceeded by or followed by an integrated electrodialysis treatment. A control means selectively directs mixed liquids to each of the treatment units for treatment in parallel or in series depending on the conductivity and residual contaminants in the mixed liquids. In comparison with nanofiltration or reverse osmosis only systems, or electrodialysis only systems, the integrated system provides improved efficiencies for treatment, requires less energy to operate, and reduces maintenance and capital costs.

Integrated electro-pressure membrane deionization system

An electrodialysis method and apparatus include a source of concentrate fluid, a source of dilute fluid, a collector of treated concentrate fluid, a collector of dilute fluid, an anode and a cathode. A plurality of generally planar spacers are interleaved with a plurality of membranes to define a plurality of cells providing electrically conductive fluid connection between the anode and the cathode. Each of the spacers comprises a gasket that defines a first aperture and a second aperture. Each of said first and second apertures define an independent cell between interleaved membranes. The symmetrical, multiple split cell spacer configuration channels fluid flow through two or more narrow and elongated paths. The split cell arrangement allows for operation of the stack in parallel or in series. The invention improves the ion removal efficiency of a given membrane area, requires significantly less energy than other electrodialysis systems and substantially reduces stack assembly, materials and fabrication costs.

Multi-path split cell spacer and electrodialysis stack design

A safety web and elongated pry bar for retaining the lid of a drum during opening of the lid. Safety web 10 is adapted to form a secure containment volume 22 in which lid 14 can be manipulated, and that prevents lid 14 from becoming a projectile. Safety web 10 includes a belt 20 for securing the safety web to the drum. The ends of belt 20 are secured to a ratcheting turnbuckle 25 that allows adjustment of the length of belt 20 providing for universal fit of a given safety web on a variety of different sizes of drums. Safety web 10 further includes a plurality of radial straps 30 that are radially disposed about belt 20. The ends 32 of radial straps 30 are fixedly secured to belt 20. Radial straps 30 are further fixedly secured to each other at a central point 35 defined by the midpoint of each radial strap 30. An annular strap 40 is provided on safety web 10 between belt 20 and central point 35. Annular strap 40 is fixedly secured to each radial strap 30. Lifting member 42 is provided to allow engagement of safety web 10 by a fork truck, hoist or similar lifting device. A steel elongated pry bar 50 is provided to allow an operator to vent pressure off of a drum with safety web 10 in place. Elongated pry bar 50 has a first end 55 adapted for grasping and a second end 60 adapted to engage the perimetric lip 62 of the drum lid so as to pry the lip 62 of the drum lid 14 upwards. A bend 65 and a short cross-member 70 cooperate to act as a fulcrum. When a downward force is applied to first end 55, an upward force is exerted on second end 60 that serves to pry lip 62 of lid 14 upward, and a downward force is exerted at the fulcrum to bias lid 14 against drum 12.

Safety web lid retainer for waste drum

A rectangular microwave applicator for processing waste material. The rectangular microwave applicator generally includes an upper cavity and a waste container. The upper cavity defines side walls and a ceiling, the bottom of the upper cavity is open. A screwfeeder tube is positioned on and extends through one of the side walls, and a vent is positioned on and extends through another of the side walls. The waste container is rectangular in configuration and is receivable in the bottom of the upper cavity. The waste container holds waste material which is introduced therein via the screwfeeder tube. A microwave choke is carried across the bottom of the upper cavity and is configured to permit the entrance of the waste container in the bottom of the upper cavity. A microwave energy input is at each corner on top of the ceiling of upper cavity and extends therethrough. Each of the corner microwave energy inputs delivers microwave energy to waste material in the corners of the waste container and is configured to transform a rectangular waveguide to a circular waveguide to maintain microwave energy in the corners of the waste container for effective heating of the waste material.

Growing community of inventors

Knoxville, TN, United States of America

Alois F Sferrazza