Large-scale urban domestic sewage and feces centralized recovery and treatment device and its centralized recovery and treatment system

Abstract

The invention discloses a centralized recovery and treatment device for urban large-scale sanitary sewage and faece, which comprises a groove-shaped digestion channel and a waste residue deposition chamber, wherein the digestion channel is distributed in a swirled or circuitous shape, or in the shape of a Character of mi; the opening of the initial end of the digestion channel is closed and provided with a sanitary sewage and faece input pipe, and the tail end of the digestion channel is communicated with the waste residue deposition chamber; an outlet of the sanitary sewage and faece input pipe extends to the inside of the groove of the digestion channel, and an inlet of the sanitary sewage and faece input pipe is communicated with a sanitary sewage and faece discharge pipe; and the top of the digestion channel and the top of the waste residue deposition chamber are provided with a cover, so that the digestion channel and the waste residue deposition chamber form a closed space. The device disclosed by the invention is simple in structure; the device can be built below a corridor or driveway pavement, therefore, the device is safe and reliable, saves the building usable area; the device is low in construction and use costs, and easy to use; and the device can effectively carry out harmless treatment on faece, therefore, the ecological environment can be greatly improved.

Description

technical field [0001] The invention relates to domestic sewage treatment equipment, in particular to a centralized recovery and treatment device for large-scale urban domestic sewage and excrement, and also relates to a centralized recovery and treatment system including a centralized recovery and treatment device for large-scale urban domestic sewage and excrement. Background technique [0002] Centralized treatment of domestic sewage and feces is a very important project that is not easy to pay attention to in urban construction. my country's architectural design is the implementation of national standards. [0003] At present, the septic tanks of my country's current architectural design standards use three-format septic tanks. Generally, a building or a unit uses a domestic sewage treatment tank or septic tank alone. A living quarter needs multiple domestic sewage treatment tanks or septic tanks. Septic tank. Moreover, the unfermented organic matter in this septic tan...

AI Technical Summary

Problems solved by technology

Moreover, the unfermented organic matter in this septic tank floats and agglomerates, which is easy to be clogged with sludge, and it is inconvenient and incomplete to clean the dung. The long natural fermentation time makes the feces stay in the septic tank for a long time, and the space of the septic tank is reduced. Large, the sewage from the septic tank is not used, but directly discharged into the river, causing water pollution

Therefore, the domestic sewage treatment tank or septic tank occupies a large area and is expensive, which is not conducive to the unified collection and treatment of domestic sewage and feces, resulting in increased water treatment and maintenance management costs

When a living quarter or several living quarters share a domestic sewage treatment tank or septic tank, it is necessary to increase the internal space of the domestic sewage treatment tank or septic tank or increase the number of cells, resulting in the failure of the domestic sewage treatment tank or septic tank. The cover has a large span, poor stability, and is unsafe. At the same time, it occupies a large area and is expensive. It cannot be built under the aisle or driveway, which is inconvenient.

On the other hand, there is a lack of organic fertilizers in agricultural and forestry production, and a large amount of chemical fertilizers are used, which not only affects the quality of agricultural and forestry products, but also destroys the ecological environment, increases the cost of agricultural and forestry, and reduces the benefits of agricultural and forestry.

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