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Compound flat plate settling unit and settling process using same

A flat-plate precipitation and flat-plate technology, which is used in sedimentation separation, flocculation/sedimentation water/sewage treatment, sedimentation tanks, etc., can solve the problems of blockage, limited floor space, limited number of layers, etc., to improve the sedimentation effect and increase the sedimentation area. , the effect of increasing the deposition area

Active Publication Date: 2015-08-12
中国市政工程西南设计研究总院有限公司
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  • Application Information

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Problems solved by technology

Existing methods to solve the land occupation of sedimentation tanks include designing double-layer or multi-layer sedimentation tanks, that is, to divide the sedimentation tanks into two or more and overlap them. Higher, so the cost is higher, and due to the limitation of technology and structure, it is difficult to reduce the height of the floor, so that the number of floors is limited and the floor area saved is limited
[0003] As an improvement, the inclined plate sedimentation tank technology has appeared, that is, an inclined plate is installed in the sedimentation tank, and the sludge is removed by gravity. However, due to the large amount of nutrients contained in the sewage, a large number of biofilms and algae grow on the inclined plate. , causing blockage, making it unable to operate normally, so it is always difficult to use in urban sewage treatment

Method used

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  • Compound flat plate settling unit and settling process using same
  • Compound flat plate settling unit and settling process using same
  • Compound flat plate settling unit and settling process using same

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[0031] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps. Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0032] Such as figure 1 , 2 Shown is a schematic diagram of the distribution of the composite plate sedimentation unit 1 in the sedimentation tank. The number of composite plate sedimentation units can be arranged according to the clarification needs and the size of the sedimentation tank, such as 2-10.

[0033] combined with Figure 1-9 , introduce the precipitation process step of the embodiment of the present invention as follows:

[0034] 1. N...

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Abstract

The invention discloses a compound flat plate settling unit, which comprises multiple circular flat plates arranged on a bracket in parallel, wherein a flange is formed in the outer periphery of each flat plate, a sewage storage chamber is arranged at the outside of the flange and is communicated with a flat plate through the groove opening of the flange; a sludge channel is formed between each two adjacent sewage storage chambers in the bracket; and a rotary mud scrapping part is arranged in each flat plate and is connected with a driving device through a transmission part. The invention further relates to the setting process using the compound flat plate settling unit. By adopting the method, the settling area is effectively increased; the surface hydraulic load is reduced; the sludge-water separation effect is improved; the discharged water quality is improved; the highly concentrated active sludge of the system is maintained and the occupied area of a settling pool is remarkably saved.

Description

technical field [0001] The invention relates to a composite plate sedimentation unit designed for the urban sewage treatment system. The system can also be used for water supply treatment and industrial wastewater treatment. By installing multiple combined plate sedimentation units in the sedimentation tank, the surface of the sedimentation tank The hydraulic load is reduced to one-half of the hydraulic load on the surface of the original sedimentation tank, which is beneficial to improve the mud-water separation effect, improve the effluent water quality, maintain the high concentration of activated sludge in the system, and significantly reduce the area occupied by the sedimentation tank. Background technique [0002] In the urban sewage treatment system, the sedimentation tank is the structure with the largest area in the system. To save the area of ​​the sewage treatment plant, the settlement area of ​​the sedimentation tank should be the first consideration. Existing me...

Claims

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Application Information

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IPC IPC(8): B01D21/06B01D21/18C02F1/52
Inventor 周克钊
Owner 中国市政工程西南设计研究总院有限公司
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