Manure slurry pre-treatment method and apparatus
OwnerGuy M. Gustafsoninventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for pre-treatment of a fresh manure slurry stream. The method alters gas production during subsequent treatment or holding. The method passes the stream through a pre-treatment zone in which the slurry is subjected to alternating electrical current depositing energy from about 1.1.times.10.sup.-2 J/cm.sup.3 to 4.1.times.10.sup.-1 J/cm.sup.3. The apparatus includes first and second spaced apart electrodes of inert material which define a pre-treatment zone between the electrodes and preferably induce turbulence in the stream within the pre-treatment zone.
Claims6
An apparatus, for connection to an alternating current source, to pre-treat a raw manure slurry stream, the apparatus comprising:
- a first electrode, the first electrode formed of a substantially inert and electrically conductive material, and having a first slurry contact surface;
- a second electrode, the second electrode formed of a substantially inert and electrically conductive material, and having a second slurry contact surface;
- a nonconductive tubular body, having an inlet and an outlet and carrying, between the inlet and the outlet, the first and second electrodes, the first and second electrodes being electrically isolated from each other in a spaced apart configuration with a generally uniform spacing between the first and second slurry contact surfaces, defining therebetween a pre-treatment zone, the pretreatment zone being in fluid communication with the inlet and the outlet;
- leads connected to the first and second electrodes for connection to an alternating power source;
- and,
- wherein the first electrode extends radially inward from an interior surface of the nonconductive tubular body to an orifice and the second electrode is a conical body generally centered within the nonconductive body.
Dependencies are inferred from the claim text.