Biological waste digester and method of operation
OwnerGerhardt Van Drieinventor
Life of this patent
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Abstract
A method of mixing liquid waste material in a digester tank by extending a supporting beam between opposing walls of the tank, securing a paddle to the supporting beam, fixturing the paddle for rotation about the supporting beam, securing a pair of inflatable air sacks to the paddle at opposing ends, and selectively inflating and deflating the sacks to force the paddle to tilt in cyclic motion thereby mixing the liquid waste containing bacteria, waste material, and oxygen uniformly throughout the digester tank.
Claims19
A waste digester apparatus comprising:
- a tank for receiving liquid waste, the tank having opposing walls;
- a supporting beam extending between the opposing walls of the tank, the supporting beam enabled for rotation about a longitudinal axis thereof;
- a paddle secured to the supporting beam and thereby enabled for rotation about the longitudinal axis of the supporting beam;
- a pair of inflatable air sacks secured to the paddle, the sacks positioned on opposing sides of the supporting beam;
- and
- a means for both inflating and deflating the sacks based upon orientation of the paddle.
A method of mixing liquid waste material comprising:
- filling a tank with the liquid waste material;
- extending a supporting beam between opposing walls of the tank, the supporting beam enabled for rotation about a longitudinal axis thereof;
- securing a paddle to the supporting beam and enabling the paddle for rotation about the longitudinal axis of the supporting beam;
- securing a pair of inflatable air sacks to the paddle at opposing ends of the supporting beam;
- and
- selectively and alternately inflating and deflating the sacks thereby forcing the paddle to tilt in cyclic motion.
A method of mixing liquid waste material comprising:
- in a cyclic repetitive treatment, inflating one air sack mounted on one end of a paddle while deflating another air sack mounted on another end of the paddle, the paddle moving in seesaw motion, thereby alternately elevating and depressing said ends of the paddle in reversing arcuate paths through the liquid waste material.
Dependencies are inferred from the claim text.