Method and apparatus for human waste treatment
First Claim
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1. An apparatus for treating human waste which comprises:
- heat accumulator provided in a discharge path of an exhaust gas from an internal combustion engine which gives resistance to passing of exhaust gas,a drying chamber provided next to said heat accumulator and connected downstream from a flush toilet in which the human waste and flush water discharged from the flush toilet is heated,a water accumulation chamber connected to said drying chamber which recovers water vapor from the drying chamber, anda pump which transports water from said water accumulation chamber to a flush tank for flush water, whereinsaid apparatus has an agitating device and also has an agitation chamber connected to said flush toilet and to said drying chamber which mixes the human waste and the flush water discharged from said flush toilet and discharges a mixture of waste and flush water to said drying chamber,a scraper provided in said drying chamber which scrapes off residual human waste stuck inside the drying chamber,a suction device which sucks the residual human waste scraped off from the inside of the drying chamber through a suction port provided in said drying chamber, and whereinsaid apparatus has a scraper and the scraper has a scraper roller, a rotating shaft, one pair of racks, one pair of spur gears and a reciprocating motion mechanism;
said scraper roller is provided in said drying chamber and has a plurality of blades which, when rotated, scrape off the residual human waste stuck to the bottom surface in said drying chamber;
said rotating shaft is secured at the center of said scraper roller;
said one pair of racks is secured on either side of the inside of said drying chamber;
said one pair of spur gears is secured on either end of said rotating shaft and engaged with said racks; and
, said reciprocating motion mechanism supports said rotating shaft such that it can rotate, and said reciprocating motion mechanism power-drives said rotating shaft reciprocally in said drying chamber.
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Abstract
In the agitation chamber (11), the human waste and the flush water from the flush toilet (20) are mixed. A heat accumulator (12) is provided in the discharge path of the exhaust gas. The drying chamber (13) heats the discharge from the agitation chamber (11) using the heat of the heat accumulator (12). The moving device (18) moves the scraper (16) and the suction port of the suction device (17) in the drying chamber (13). The scraper (16) scrapes off the residual human waste stuck in the drying chamber (13). The suction device (17) suctions the residual human waste in the drying chamber (13). The water accumulation chamber (14) recovers the water vapor from the drying chamber (13). The recovered water is transported by the pump (15) to the flush tank (30) for the flush water, and thus recirculated. The space for holding the flush water can be reduced.
35 Citations
15 Claims
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1. An apparatus for treating human waste which comprises:
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heat accumulator provided in a discharge path of an exhaust gas from an internal combustion engine which gives resistance to passing of exhaust gas, a drying chamber provided next to said heat accumulator and connected downstream from a flush toilet in which the human waste and flush water discharged from the flush toilet is heated, a water accumulation chamber connected to said drying chamber which recovers water vapor from the drying chamber, and a pump which transports water from said water accumulation chamber to a flush tank for flush water, wherein said apparatus has an agitating device and also has an agitation chamber connected to said flush toilet and to said drying chamber which mixes the human waste and the flush water discharged from said flush toilet and discharges a mixture of waste and flush water to said drying chamber, a scraper provided in said drying chamber which scrapes off residual human waste stuck inside the drying chamber, a suction device which sucks the residual human waste scraped off from the inside of the drying chamber through a suction port provided in said drying chamber, and wherein said apparatus has a scraper and the scraper has a scraper roller, a rotating shaft, one pair of racks, one pair of spur gears and a reciprocating motion mechanism;
said scraper roller is provided in said drying chamber and has a plurality of blades which, when rotated, scrape off the residual human waste stuck to the bottom surface in said drying chamber;
said rotating shaft is secured at the center of said scraper roller;
said one pair of racks is secured on either side of the inside of said drying chamber;
said one pair of spur gears is secured on either end of said rotating shaft and engaged with said racks; and
, said reciprocating motion mechanism supports said rotating shaft such that it can rotate, and said reciprocating motion mechanism power-drives said rotating shaft reciprocally in said drying chamber. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for treating humany waste which comprises:
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a heat accumulator provided in a discharge path of an exhaust gas from an internal combustion engine which gives resistance to passing of exhaust gas, a drying chamber provided next to said heat accumulator and connected downstream from a flush toilet in which the human waste and flush water discharged from the flush toilet is heated, a water accumulation chamber connected to said drying chamber which recovers water vapor from the drying chamber, and a pump which transports water from said water accumulation chamber to a flush tank for flush water, wherein said apparatus has an agitating device and also has an agitation chamber connected to said flush toilet and to said drying chamber which mixes the human waste and the flush water discharged from said flush toilet and discharges a mixture of waste and flush water to said drying chamber, a scraper provided in said drying chamber which scrapes off residual human waste stuck inside the drying chamber, a suction device which sucks the residual human waste scraped off from the inside of the drying chamber through a suction port provided in said drying chamber, and wherein the heat accumulator heats the human waste and the flush water to a temperature of 600°
-800°
C. in said drying chamber. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification
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Current AssigneeKazuhiko Kami
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Original AssigneeKazuhiko Kami
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InventorsKami, Kazuhiko
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Primary Examiner(s)Upton, Christopher
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Application NumberUS08/654,776Time in Patent Office566 DaysField of Search210/149, 210/173, 210/175, 210/178, 210/179, 210/180, 210/188, 210/194, 210/195.1, 210/209, 210/218, 210/742, 210/754, 210/758, 210/760, 210/764, 210/766, 4/322US Class Current210/173CPC Class CodesC02F 1/048 Purification of waste water...C02F 1/16 using waste heat from other...E03D 5/00 Special constructions of fl...E03D 5/016 with recirculation of bowl-...
