A Segmented Slurry-Water Separation Layered Counterflow Inclined Plate Sedimentation System

Abstract

The invention belongs to the technical field of wastewater treatment, and discloses a segmented mud-water separation layered incongruous flowing oblique plate precipitation system. A segmented type oblique plate is arranged, a downward sliding route of sludge precipitated on the surface of the oblique plate in mud-water mixed liquid is greatly shortened, and accordingly the effectiveness of separation of mud and water is achieved. A mud sliding tank is arranged and used for spatially separating a rising water flow from a sludge downward sliding route at different planes, so that interference of the rising water flow on the precipitated sludge is eliminated. An independent mud collecting area is arranged and used for separating a water distributing area from a sludge precipitation buffer area, so that disturbance of a reversal water flow to sludge precipitation is eliminated, and accordingly the precipitation speed is increased. A back flush device is arranged at the top end of the mudsliding tank, precipitated mud in the mud sliding tank can be removed through regular flush, and thus long-term efficient stability of separation of mud and water is achieved. The long-term, efficientand stable sludge removing capability of the segmented mud-water separation layered incongruous flowing oblique plate precipitation system can be achieved.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a segmental mud-water separation layered counterflow inclined plate sedimentation system. Background technique [0002] As a structure for removing suspended solids in water, sedimentation tanks are widely used in water supply and wastewater treatment projects. According to the direction of water flow in the tank, the sedimentation tank can be divided into three types: horizontal flow type, vertical flow type and radial flow type. The advection sedimentation tank is widely used because of its simple structure and good sedimentation effect, but it also has disadvantages such as low efficiency and large floor area. According to the ideal working characteristics of the advection sedimentation tank, when the sludge enters the advection sedimentation tank, it not only has the same horizontal operation as the water flow, but also has a vertical sinking operat...

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Problems solved by technology

[0005] The existing sloping plate sedimentation tank is difficult to obtain efficient and stable sludge removal due to the long downward path of the sludge and the excessive interference of the rising water flow on the same plane; an independent sludge collection area is set up to separate the water distribution area from the sludge settlement buffer zone. Eliminate the disturbance of the reverse flow on the sludge settlement, and improve the poor sedimentation rate of the sludge; it is difficult to maintain the long-term high-efficiency stability of the existing inclined plate sedimentation tank due to the clogging of sludge

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