Feces and urine negative pressure sealed collection and processing utilization device and method

Abstract

The invention relates to a feces and urine negative pressure sealed collection and processing utilization device which comprises an air toilet system, a filtering and bio-drying system and a high-concentration feces and urine evaporation system. The air toilet system comprises an air toilet and a vacuum pump; the filtering and bio-drying system is provided with a filtering and bio-drying device which is used for carrying out filtering and bio-drying processing on materials and is filled with an organic waste filler; the high-concentration feces and urine evaporation system is provided with a negative pressure evaporator for carrying out concentrating and sterilizing processing on filtrate; steam generated by the negative pressure evaporator is used for heating concentrated solution and finally forming condensed water; solids discharged by the filtering and bio-drying device can be used as an organic fertilizer; the concentrated solution discharged by the negative pressure evaporator can be used as a liquid organic fertilizer. According to the invention, the total quantity of generated black water is small; processing equipment is relatively simple; the feces and urine negative pressure sealed collection and processing utilization device is convenient to operate, has high harmless degree and resource degree after processing, influences the environment a little, can be used for various public toilets and household toilets and implements zero emission and fertilizer transformation of sewage.

Description

technical field [0001] The invention relates to a device and method for negative pressure airtight collection, treatment and utilization of feces and urine, which are mainly used for collecting and treating the feces of toilets to form usable fertilizers and the like. Background technique [0002] The excrement of existing toilets is mostly collected by gravity. After flushing, it flows down according to the gravity of the mixture itself, and flows into the septic tank for digestion and harmless treatment. The defect of this excrement collection and treatment method is that it consumes a lot of water , which in turn leads to a large amount of treatment, often requiring the construction of large-scale underground septic tanks. In addition, the treatment effect is not ideal, and it cannot meet the requirements of harmlessness, reduction and resource utilization. Contents of the invention [0003] In order to overcome the above-mentioned defects of the prior art, the present ...

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Problems solved by technology

[0002] The excrement of existing toilets is mostly collected by gravity. After flushing, it flows down according to the gravity of the mixture itself, and flows into the septic tank for digestion and harmless treatment. The defect of this excrement collection and treatment method is that

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