| US 7,476,054 B2 | ||
| Process for high-volume disposal of sludge and collection of combustible gases | ||
| Gerhardt Van Drie, 724 W. Pine Ave., El Segundo, Calif. 90245 (US) | ||
| Filed on Jul. 09, 2007, as Appl. No. 11/825,787. | ||
| Claims priority of provisional application 60/901565, filed on Feb. 14, 2007. | ||
| Claims priority of provisional application 60/859787, filed on Nov. 17, 2006. | ||
| Prior Publication US 2008/0170910 A1, Jul. 17, 2008 | ||
| Int. Cl. B09B 1/00 (2006.01) | ||
| U.S. Cl. 405—129.35 | 8 Claims |
| 1. A method for disposing of sludge comprising the steps of:
a) excavating a linearly directed trench in an earthen disposal site, the site having a natural site surface;
b) placing earth removed from the trench onto the site surface;
c) dumping sludge into the trench to a selected height therein;
d) covering the sludge with the removed earth;
e) repeating steps (a) through (d) cyclically to form a first plurality of sludge-filled and covered trenches in positions
mutually spaced apart and essentially parallel; and
f) repeating steps (a) through (e) to form at least one further plurality of sludge-filled and covered trenches, wherein the
at least one further plurality of sludge-filled and covered trenches has an orientation that crisscrosses the trenches of
the first plurality.
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